diff options
Diffstat (limited to 'spec/ruby/core/float')
61 files changed, 1839 insertions, 0 deletions
diff --git a/spec/ruby/core/float/abs_spec.rb b/spec/ruby/core/float/abs_spec.rb new file mode 100644 index 0000000000..a08601926d --- /dev/null +++ b/spec/ruby/core/float/abs_spec.rb @@ -0,0 +1,6 @@ +require_relative '../../spec_helper' +require_relative 'shared/abs' + +describe "Float#abs" do + it_behaves_like :float_abs, :abs +end diff --git a/spec/ruby/core/float/angle_spec.rb b/spec/ruby/core/float/angle_spec.rb new file mode 100644 index 0000000000..c07249aa97 --- /dev/null +++ b/spec/ruby/core/float/angle_spec.rb @@ -0,0 +1,6 @@ +require_relative '../../spec_helper' +require_relative 'shared/arg' + +describe "Float#angle" do + it_behaves_like :float_arg, :angle +end diff --git a/spec/ruby/core/float/arg_spec.rb b/spec/ruby/core/float/arg_spec.rb new file mode 100644 index 0000000000..d3a50668f8 --- /dev/null +++ b/spec/ruby/core/float/arg_spec.rb @@ -0,0 +1,6 @@ +require_relative '../../spec_helper' +require_relative 'shared/arg' + +describe "Float#arg" do + it_behaves_like :float_arg, :arg +end diff --git a/spec/ruby/core/float/case_compare_spec.rb b/spec/ruby/core/float/case_compare_spec.rb new file mode 100644 index 0000000000..b902fbea18 --- /dev/null +++ b/spec/ruby/core/float/case_compare_spec.rb @@ -0,0 +1,6 @@ +require_relative '../../spec_helper' +require_relative 'shared/equal' + +describe "Float#===" do + it_behaves_like :float_equal, :=== +end diff --git a/spec/ruby/core/float/ceil_spec.rb b/spec/ruby/core/float/ceil_spec.rb new file mode 100644 index 0000000000..75f5610292 --- /dev/null +++ b/spec/ruby/core/float/ceil_spec.rb @@ -0,0 +1,26 @@ +require_relative '../../spec_helper' +require_relative '../integer/shared/integer_ceil_precision' + +describe "Float#ceil" do + context "with precision" do + it_behaves_like :integer_ceil_precision, :Float + end + + it "returns the smallest Integer greater than or equal to self" do + -1.2.ceil.should eql( -1) + -1.0.ceil.should eql( -1) + 0.0.ceil.should eql( 0 ) + 1.3.ceil.should eql( 2 ) + 3.0.ceil.should eql( 3 ) + -9223372036854775808.1.ceil.should eql(-9223372036854775808) + +9223372036854775808.1.ceil.should eql(+9223372036854775808) + end + + it "returns the smallest number greater than or equal to self with an optionally given precision" do + 2.1679.ceil(0).should eql(3) + 214.94.ceil(-1).should eql(220) + 7.0.ceil(1).should eql(7.0) + -1.234.ceil(2).should eql(-1.23) + 5.123812.ceil(4).should eql(5.1239) + end +end diff --git a/spec/ruby/core/float/coerce_spec.rb b/spec/ruby/core/float/coerce_spec.rb new file mode 100644 index 0000000000..baa831dcf6 --- /dev/null +++ b/spec/ruby/core/float/coerce_spec.rb @@ -0,0 +1,18 @@ +require_relative '../../spec_helper' + +describe "Float#coerce" do + it "returns [other, self] both as Floats" do + 1.2.coerce(1).should == [1.0, 1.2] + 5.28.coerce(1.0).should == [1.0, 5.28] + 1.0.coerce(1).should == [1.0, 1.0] + 1.0.coerce("2.5").should == [2.5, 1.0] + 1.0.coerce(3.14).should == [3.14, 1.0] + + a, b = -0.0.coerce(bignum_value) + a.should be_close(18446744073709551616.0, TOLERANCE) + b.should be_close(-0.0, TOLERANCE) + a, b = 1.0.coerce(bignum_value) + a.should be_close(18446744073709551616.0, TOLERANCE) + b.should be_close(1.0, TOLERANCE) + end +end diff --git a/spec/ruby/core/float/comparison_spec.rb b/spec/ruby/core/float/comparison_spec.rb new file mode 100644 index 0000000000..0cd290f4ad --- /dev/null +++ b/spec/ruby/core/float/comparison_spec.rb @@ -0,0 +1,113 @@ +require_relative '../../spec_helper' + +describe "Float#<=>" do + it "returns -1, 0, 1 when self is less than, equal, or greater than other" do + (1.5 <=> 5).should == -1 + (2.45 <=> 2.45).should == 0 + ((bignum_value*1.1) <=> bignum_value).should == 1 + end + + it "returns nil if one side is NaN" do + [1.0, 42, bignum_value].each { |n| + (nan_value <=> n).should == nil + (n <=> nan_value).should == nil + } + end + + it "handles positive infinity" do + [1.0, 42, bignum_value].each { |n| + (infinity_value <=> n).should == 1 + (n <=> infinity_value).should == -1 + } + end + + it "handles negative infinity" do + [1.0, 42, bignum_value].each { |n| + (-infinity_value <=> n).should == -1 + (n <=> -infinity_value).should == 1 + } + end + + it "returns nil when the given argument is not a Float" do + (1.0 <=> "1").should be_nil + (1.0 <=> "1".freeze).should be_nil + (1.0 <=> :one).should be_nil + (1.0 <=> true).should be_nil + end + + it "compares using #coerce when argument is not a Float" do + klass = Class.new do + attr_reader :call_count + def coerce(other) + @call_count ||= 0 + @call_count += 1 + [other, 42.0] + end + end + + coercible = klass.new + (2.33 <=> coercible).should == -1 + (42.0 <=> coercible).should == 0 + (43.0 <=> coercible).should == 1 + coercible.call_count.should == 3 + end + + it "raises TypeError when #coerce misbehaves" do + klass = Class.new do + def coerce(other) + :incorrect + end + end + + bad_coercible = klass.new + -> { + 4.2 <=> bad_coercible + }.should raise_error(TypeError, "coerce must return [x, y]") + end + + it "returns the correct result when one side is infinite" do + (infinity_value <=> Float::MAX.to_i*2).should == 1 + (-Float::MAX.to_i*2 <=> infinity_value).should == -1 + (-infinity_value <=> -Float::MAX.to_i*2).should == -1 + (-Float::MAX.to_i*2 <=> -infinity_value).should == 1 + end + + it "returns 0 when self is Infinity and other is infinite?=1" do + obj = Object.new + def obj.infinite? + 1 + end + (infinity_value <=> obj).should == 0 + end + + it "returns 1 when self is Infinity and other is infinite?=-1" do + obj = Object.new + def obj.infinite? + -1 + end + (infinity_value <=> obj).should == 1 + end + + it "returns 1 when self is Infinity and other is infinite?=nil (which means finite)" do + obj = Object.new + def obj.infinite? + nil + end + (infinity_value <=> obj).should == 1 + end + + it "returns 0 for -0.0 and 0.0" do + (-0.0 <=> 0.0).should == 0 + (0.0 <=> -0.0).should == 0 + end + + it "returns 0 for -0.0 and 0" do + (-0.0 <=> 0).should == 0 + (0 <=> -0.0).should == 0 + end + + it "returns 0 for 0.0 and 0" do + (0.0 <=> 0).should == 0 + (0 <=> 0.0).should == 0 + end +end diff --git a/spec/ruby/core/float/constants_spec.rb b/spec/ruby/core/float/constants_spec.rb new file mode 100644 index 0000000000..497e0ae188 --- /dev/null +++ b/spec/ruby/core/float/constants_spec.rb @@ -0,0 +1,55 @@ +require_relative '../../spec_helper' + +describe "Float constant" do + it "DIG is 15" do + Float::DIG.should == 15 + end + + it "EPSILON is 2.220446049250313e-16" do + Float::EPSILON.should == 2.0 ** -52 + Float::EPSILON.should == 2.220446049250313e-16 + end + + it "MANT_DIG is 53" do + Float::MANT_DIG.should == 53 + end + + it "MAX_10_EXP is 308" do + Float::MAX_10_EXP.should == 308 + end + + it "MIN_10_EXP is -308" do + Float::MIN_10_EXP.should == -307 + end + + it "MAX_EXP is 1024" do + Float::MAX_EXP.should == 1024 + end + + it "MIN_EXP is -1021" do + Float::MIN_EXP.should == -1021 + end + + it "MAX is 1.7976931348623157e+308" do + # See https://en.wikipedia.org/wiki/Double-precision_floating-point_format#Double-precision_examples + Float::MAX.should == (1 + (1 - (2 ** -52))) * (2.0 ** 1023) + Float::MAX.should == 1.7976931348623157e+308 + end + + it "MIN is 2.2250738585072014e-308" do + Float::MIN.should == (2.0 ** -1022) + Float::MIN.should == 2.2250738585072014e-308 + end + + it "RADIX is 2" do + Float::RADIX.should == 2 + end + + it "INFINITY is the positive infinity" do + Float::INFINITY.infinite?.should == 1 + end + + it "NAN is 'not a number'" do + Float::NAN.nan?.should be_true + end +end diff --git a/spec/ruby/core/float/denominator_spec.rb b/spec/ruby/core/float/denominator_spec.rb new file mode 100644 index 0000000000..6f4fcfcf23 --- /dev/null +++ b/spec/ruby/core/float/denominator_spec.rb @@ -0,0 +1,29 @@ +require_relative '../../spec_helper' + +describe "Float#denominator" do + before :each do + @numbers = [ + 0.0, + 29871.22736282, + 7772222663.0, + 1.4592, + ].map {|n| [0-n, n]}.flatten + end + + it "returns an Integer" do + @numbers.each do |number| + number.denominator.should be_kind_of(Integer) + end + end + + it "converts self to a Rational and returns the denominator" do + @numbers.each do |number| + number.denominator.should == Rational(number).denominator + end + end + + it "returns 1 for NaN and Infinity" do + nan_value.denominator.should == 1 + infinity_value.denominator.should == 1 + end +end diff --git a/spec/ruby/core/float/divide_spec.rb b/spec/ruby/core/float/divide_spec.rb new file mode 100644 index 0000000000..72ab7527bd --- /dev/null +++ b/spec/ruby/core/float/divide_spec.rb @@ -0,0 +1,43 @@ +require_relative '../../spec_helper' +require_relative 'fixtures/coerce' +require_relative 'shared/arithmetic_exception_in_coerce' + +describe "Float#/" do + it_behaves_like :float_arithmetic_exception_in_coerce, :/ + + it "returns self divided by other" do + (5.75 / -2).should be_close(-2.875,TOLERANCE) + (451.0 / 9.3).should be_close(48.494623655914,TOLERANCE) + (91.1 / -0xffffffff).should be_close(-2.12108716418061e-08, TOLERANCE) + end + + it "properly coerces objects" do + (5.0 / FloatSpecs::CanCoerce.new(5)).should be_close(0, TOLERANCE) + end + + it "returns +Infinity when dividing non-zero by zero of the same sign" do + (1.0 / 0.0).should be_positive_infinity + (-1.0 / -0.0).should be_positive_infinity + end + + it "returns -Infinity when dividing non-zero by zero of opposite sign" do + (-1.0 / 0.0).should be_negative_infinity + (1.0 / -0.0).should be_negative_infinity + end + + it "returns NaN when dividing zero by zero" do + (0.0 / 0.0).should be_nan + (-0.0 / 0.0).should be_nan + (0.0 / -0.0).should be_nan + (-0.0 / -0.0).should be_nan + end + + it "raises a TypeError when given a non-Numeric" do + -> { 13.0 / "10" }.should raise_error(TypeError) + -> { 13.0 / :symbol }.should raise_error(TypeError) + end + + it "divides correctly by Rational numbers" do + (1.2345678901234567 / Rational(1, 10000000000000000000)).should == 1.2345678901234567e+19 + end +end diff --git a/spec/ruby/core/float/divmod_spec.rb b/spec/ruby/core/float/divmod_spec.rb new file mode 100644 index 0000000000..dad45a9b89 --- /dev/null +++ b/spec/ruby/core/float/divmod_spec.rb @@ -0,0 +1,43 @@ +require_relative '../../spec_helper' + +describe "Float#divmod" do + it "returns an [quotient, modulus] from dividing self by other" do + values = 3.14.divmod(2) + values[0].should eql(1) + values[1].should be_close(1.14, TOLERANCE) + values = 2.8284.divmod(3.1415) + values[0].should eql(0) + values[1].should be_close(2.8284, TOLERANCE) + values = -1.0.divmod(bignum_value) + values[0].should eql(-1) + values[1].should be_close(18446744073709551616.0, TOLERANCE) + values = -1.0.divmod(1) + values[0].should eql(-1) + values[1].should eql(0.0) + end + + # Behaviour established as correct in r23953 + it "raises a FloatDomainError if self is NaN" do + -> { nan_value.divmod(1) }.should raise_error(FloatDomainError) + end + + # Behaviour established as correct in r23953 + it "raises a FloatDomainError if other is NaN" do + -> { 1.0.divmod(nan_value) }.should raise_error(FloatDomainError) + end + + # Behaviour established as correct in r23953 + it "raises a FloatDomainError if self is Infinity" do + -> { infinity_value.divmod(1) }.should raise_error(FloatDomainError) + end + + it "raises a ZeroDivisionError if other is zero" do + -> { 1.0.divmod(0) }.should raise_error(ZeroDivisionError) + -> { 1.0.divmod(0.0) }.should raise_error(ZeroDivisionError) + end + + # redmine #5276" + it "returns the correct [quotient, modulus] even for large quotient" do + 0.59.divmod(7.761021455128987e-11).first.should eql(7602092113) + end +end diff --git a/spec/ruby/core/float/dup_spec.rb b/spec/ruby/core/float/dup_spec.rb new file mode 100644 index 0000000000..294da8e2bc --- /dev/null +++ b/spec/ruby/core/float/dup_spec.rb @@ -0,0 +1,8 @@ +require_relative '../../spec_helper' + +describe "Float#dup" do + it "returns self" do + float = 2.4 + float.dup.should equal(float) + end +end diff --git a/spec/ruby/core/float/eql_spec.rb b/spec/ruby/core/float/eql_spec.rb new file mode 100644 index 0000000000..6b5f91db33 --- /dev/null +++ b/spec/ruby/core/float/eql_spec.rb @@ -0,0 +1,16 @@ +require_relative '../../spec_helper' + +describe "Float#eql?" do + it "returns true if other is a Float equal to self" do + 0.0.eql?(0.0).should be_true + end + + it "returns false if other is a Float not equal to self" do + 1.0.eql?(1.1).should be_false + end + + it "returns false if other is not a Float" do + 1.0.eql?(1).should be_false + 1.0.eql?(:one).should be_false + end +end diff --git a/spec/ruby/core/float/equal_value_spec.rb b/spec/ruby/core/float/equal_value_spec.rb new file mode 100644 index 0000000000..03eea5108e --- /dev/null +++ b/spec/ruby/core/float/equal_value_spec.rb @@ -0,0 +1,6 @@ +require_relative '../../spec_helper' +require_relative 'shared/equal' + +describe "Float#==" do + it_behaves_like :float_equal, :== +end diff --git a/spec/ruby/core/float/exponent_spec.rb b/spec/ruby/core/float/exponent_spec.rb new file mode 100644 index 0000000000..a4c03469a7 --- /dev/null +++ b/spec/ruby/core/float/exponent_spec.rb @@ -0,0 +1,15 @@ +require_relative '../../spec_helper' + +describe "Float#**" do + it "returns self raise to the other power" do + (2.3 ** 3).should be_close(12.167,TOLERANCE) + (5.2 ** -1).should be_close(0.192307692307692,TOLERANCE) + (9.5 ** 0.5).should be_close(3.08220700148449, TOLERANCE) + (9.5 ** 0xffffffff).to_s.should == 'Infinity' + end + + it "returns a complex number when negative and raised to a fractional power" do + ((-8.0) ** (1.0/3)) .should be_close(Complex(1, 1.73205), TOLERANCE) + ((-8.0) ** Rational(1,3)).should be_close(Complex(1, 1.73205), TOLERANCE) + end +end diff --git a/spec/ruby/core/float/fdiv_spec.rb b/spec/ruby/core/float/fdiv_spec.rb new file mode 100644 index 0000000000..be25ee283b --- /dev/null +++ b/spec/ruby/core/float/fdiv_spec.rb @@ -0,0 +1,6 @@ +require_relative '../../spec_helper' +require_relative 'shared/quo' + +describe "Float#fdiv" do + it_behaves_like :float_quo, :fdiv +end diff --git a/spec/ruby/core/float/finite_spec.rb b/spec/ruby/core/float/finite_spec.rb new file mode 100644 index 0000000000..d839b30e32 --- /dev/null +++ b/spec/ruby/core/float/finite_spec.rb @@ -0,0 +1,19 @@ +require_relative '../../spec_helper' + +describe "Float#finite?" do + it "returns true for finite values" do + 3.14159.should.finite? + end + + it "returns false for positive infinity" do + infinity_value.should_not.finite? + end + + it "returns false for negative infinity" do + (-infinity_value).should_not.finite? + end + + it "returns false for NaN" do + nan_value.should_not.finite? + end +end diff --git a/spec/ruby/core/float/fixtures/classes.rb b/spec/ruby/core/float/fixtures/classes.rb new file mode 100644 index 0000000000..2d80184e7d --- /dev/null +++ b/spec/ruby/core/float/fixtures/classes.rb @@ -0,0 +1,4 @@ +module FloatSpecs + class CoerceError < StandardError + end +end diff --git a/spec/ruby/core/float/fixtures/coerce.rb b/spec/ruby/core/float/fixtures/coerce.rb new file mode 100644 index 0000000000..2cf155be95 --- /dev/null +++ b/spec/ruby/core/float/fixtures/coerce.rb @@ -0,0 +1,15 @@ +module FloatSpecs + class CanCoerce + def initialize(a) + @a = a + end + + def coerce(b) + [self.class.new(b), @a] + end + + def /(b) + @a.to_i % b.to_i + end + end +end diff --git a/spec/ruby/core/float/float_spec.rb b/spec/ruby/core/float/float_spec.rb new file mode 100644 index 0000000000..263ae82079 --- /dev/null +++ b/spec/ruby/core/float/float_spec.rb @@ -0,0 +1,19 @@ +require_relative '../../spec_helper' + +describe "Float" do + it "includes Comparable" do + Float.include?(Comparable).should == true + end + + it ".allocate raises a TypeError" do + -> do + Float.allocate + end.should raise_error(TypeError) + end + + it ".new is undefined" do + -> do + Float.new + end.should raise_error(NoMethodError) + end +end diff --git a/spec/ruby/core/float/floor_spec.rb b/spec/ruby/core/float/floor_spec.rb new file mode 100644 index 0000000000..8b492ef473 --- /dev/null +++ b/spec/ruby/core/float/floor_spec.rb @@ -0,0 +1,26 @@ +require_relative '../../spec_helper' +require_relative '../integer/shared/integer_floor_precision' + +describe "Float#floor" do + context "with precision" do + it_behaves_like :integer_floor_precision, :Float + end + + it "returns the largest Integer less than or equal to self" do + -1.2.floor.should eql( -2) + -1.0.floor.should eql( -1) + 0.0.floor.should eql( 0 ) + 1.0.floor.should eql( 1 ) + 5.9.floor.should eql( 5 ) + -9223372036854775808.1.floor.should eql(-9223372036854775808) + +9223372036854775808.1.floor.should eql(+9223372036854775808) + end + + it "returns the largest number less than or equal to self with an optionally given precision" do + 2.1679.floor(0).should eql(2) + 214.94.floor(-1).should eql(210) + 7.0.floor(1).should eql(7.0) + -1.234.floor(2).should eql(-1.24) + 5.123812.floor(4).should eql(5.1238) + end +end diff --git a/spec/ruby/core/float/gt_spec.rb b/spec/ruby/core/float/gt_spec.rb new file mode 100644 index 0000000000..33078e07ce --- /dev/null +++ b/spec/ruby/core/float/gt_spec.rb @@ -0,0 +1,38 @@ +require_relative '../../spec_helper' +require_relative 'shared/comparison_exception_in_coerce' + +describe "Float#>" do + it_behaves_like :float_comparison_exception_in_coerce, :> + + it "returns true if self is greater than other" do + (1.5 > 1).should == true + (2.5 > 3).should == false + (45.91 > bignum_value).should == false + end + + it "raises an ArgumentError when given a non-Numeric" do + -> { 5.0 > "4" }.should raise_error(ArgumentError) + -> { 5.0 > mock('x') }.should raise_error(ArgumentError) + end + + it "returns false if one side is NaN" do + [1.0, 42, bignum_value].each { |n| + (nan_value > n).should == false + (n > nan_value).should == false + } + end + + it "handles positive infinity" do + [1.0, 42, bignum_value].each { |n| + (infinity_value > n).should == true + (n > infinity_value).should == false + } + end + + it "handles negative infinity" do + [1.0, 42, bignum_value].each { |n| + (-infinity_value > n).should == false + (n > -infinity_value).should == true + } + end +end diff --git a/spec/ruby/core/float/gte_spec.rb b/spec/ruby/core/float/gte_spec.rb new file mode 100644 index 0000000000..44c0a81b43 --- /dev/null +++ b/spec/ruby/core/float/gte_spec.rb @@ -0,0 +1,38 @@ +require_relative '../../spec_helper' +require_relative 'shared/comparison_exception_in_coerce' + +describe "Float#>=" do + it_behaves_like :float_comparison_exception_in_coerce, :>= + + it "returns true if self is greater than or equal to other" do + (5.2 >= 5.2).should == true + (9.71 >= 1).should == true + (5.55382 >= 0xfabdafbafcab).should == false + end + + it "raises an ArgumentError when given a non-Numeric" do + -> { 5.0 >= "4" }.should raise_error(ArgumentError) + -> { 5.0 >= mock('x') }.should raise_error(ArgumentError) + end + + it "returns false if one side is NaN" do + [1.0, 42, bignum_value].each { |n| + (nan_value >= n).should == false + (n >= nan_value).should == false + } + end + + it "handles positive infinity" do + [1.0, 42, bignum_value].each { |n| + (infinity_value >= n).should == true + (n >= infinity_value).should == false + } + end + + it "handles negative infinity" do + [1.0, 42, bignum_value].each { |n| + (-infinity_value >= n).should == false + (n >= -infinity_value).should == true + } + end +end diff --git a/spec/ruby/core/float/hash_spec.rb b/spec/ruby/core/float/hash_spec.rb new file mode 100644 index 0000000000..5f77e3b4a1 --- /dev/null +++ b/spec/ruby/core/float/hash_spec.rb @@ -0,0 +1,11 @@ +require_relative '../../spec_helper' + +describe "Float#hash" do + it "is provided" do + 0.0.respond_to?(:hash).should == true + end + + it "is stable" do + 1.0.hash.should == 1.0.hash + end +end diff --git a/spec/ruby/core/float/infinite_spec.rb b/spec/ruby/core/float/infinite_spec.rb new file mode 100644 index 0000000000..901c2738aa --- /dev/null +++ b/spec/ruby/core/float/infinite_spec.rb @@ -0,0 +1,19 @@ +require_relative '../../spec_helper' + +describe "Float#infinite?" do + it "returns nil for finite values" do + 1.0.infinite?.should == nil + end + + it "returns 1 for positive infinity" do + infinity_value.infinite?.should == 1 + end + + it "returns -1 for negative infinity" do + (-infinity_value).infinite?.should == -1 + end + + it "returns nil for NaN" do + nan_value.infinite?.should == nil + end +end diff --git a/spec/ruby/core/float/inspect_spec.rb b/spec/ruby/core/float/inspect_spec.rb new file mode 100644 index 0000000000..4be1927d84 --- /dev/null +++ b/spec/ruby/core/float/inspect_spec.rb @@ -0,0 +1,6 @@ +require_relative '../../spec_helper' +require_relative 'shared/to_s' + +describe "Float#inspect" do + it_behaves_like :float_to_s, :inspect +end diff --git a/spec/ruby/core/float/lt_spec.rb b/spec/ruby/core/float/lt_spec.rb new file mode 100644 index 0000000000..94dcfc42f8 --- /dev/null +++ b/spec/ruby/core/float/lt_spec.rb @@ -0,0 +1,38 @@ +require_relative '../../spec_helper' +require_relative 'shared/comparison_exception_in_coerce' + +describe "Float#<" do + it_behaves_like :float_comparison_exception_in_coerce, :< + + it "returns true if self is less than other" do + (71.3 < 91.8).should == true + (192.6 < -500).should == false + (-0.12 < 0x4fffffff).should == true + end + + it "raises an ArgumentError when given a non-Numeric" do + -> { 5.0 < "4" }.should raise_error(ArgumentError) + -> { 5.0 < mock('x') }.should raise_error(ArgumentError) + end + + it "returns false if one side is NaN" do + [1.0, 42, bignum_value].each { |n| + (nan_value < n).should == false + (n < nan_value).should == false + } + end + + it "handles positive infinity" do + [1.0, 42, bignum_value].each { |n| + (infinity_value < n).should == false + (n < infinity_value).should == true + } + end + + it "handles negative infinity" do + [1.0, 42, bignum_value].each { |n| + (-infinity_value < n).should == true + (n < -infinity_value).should == false + } + end +end diff --git a/spec/ruby/core/float/lte_spec.rb b/spec/ruby/core/float/lte_spec.rb new file mode 100644 index 0000000000..7b5a86ee76 --- /dev/null +++ b/spec/ruby/core/float/lte_spec.rb @@ -0,0 +1,39 @@ +require_relative '../../spec_helper' +require_relative 'shared/comparison_exception_in_coerce' + +describe "Float#<=" do + it_behaves_like :float_comparison_exception_in_coerce, :>= + + it "returns true if self is less than or equal to other" do + (2.0 <= 3.14159).should == true + (-2.7183 <= -24).should == false + (0.0 <= 0.0).should == true + (9_235.9 <= bignum_value).should == true + end + + it "raises an ArgumentError when given a non-Numeric" do + -> { 5.0 <= "4" }.should raise_error(ArgumentError) + -> { 5.0 <= mock('x') }.should raise_error(ArgumentError) + end + + it "returns false if one side is NaN" do + [1.0, 42, bignum_value].each { |n| + (nan_value <= n).should == false + (n <= nan_value).should == false + } + end + + it "handles positive infinity" do + [1.0, 42, bignum_value].each { |n| + (infinity_value <= n).should == false + (n <= infinity_value).should == true + } + end + + it "handles negative infinity" do + [1.0, 42, bignum_value].each { |n| + (-infinity_value <= n).should == true + (n <= -infinity_value).should == false + } + end +end diff --git a/spec/ruby/core/float/magnitude_spec.rb b/spec/ruby/core/float/magnitude_spec.rb new file mode 100644 index 0000000000..7cdd8ef28a --- /dev/null +++ b/spec/ruby/core/float/magnitude_spec.rb @@ -0,0 +1,6 @@ +require_relative "../../spec_helper" +require_relative 'shared/abs' + +describe "Float#magnitude" do + it_behaves_like :float_abs, :magnitude +end diff --git a/spec/ruby/core/float/minus_spec.rb b/spec/ruby/core/float/minus_spec.rb new file mode 100644 index 0000000000..a4281a397b --- /dev/null +++ b/spec/ruby/core/float/minus_spec.rb @@ -0,0 +1,12 @@ +require_relative '../../spec_helper' +require_relative 'shared/arithmetic_exception_in_coerce' + +describe "Float#-" do + it_behaves_like :float_arithmetic_exception_in_coerce, :- + + it "returns self minus other" do + (9_237_212.5280 - 5_280).should be_close(9231932.528, TOLERANCE) + (2_560_496.1691 - bignum_value).should be_close(-18446744073706991616.0, TOLERANCE) + (5.5 - 5.5).should be_close(0.0,TOLERANCE) + end +end diff --git a/spec/ruby/core/float/modulo_spec.rb b/spec/ruby/core/float/modulo_spec.rb new file mode 100644 index 0000000000..8ae80a0b05 --- /dev/null +++ b/spec/ruby/core/float/modulo_spec.rb @@ -0,0 +1,10 @@ +require_relative '../../spec_helper' +require_relative 'shared/modulo' + +describe "Float#%" do + it_behaves_like :float_modulo, :% +end + +describe "Float#modulo" do + it_behaves_like :float_modulo, :modulo +end diff --git a/spec/ruby/core/float/multiply_spec.rb b/spec/ruby/core/float/multiply_spec.rb new file mode 100644 index 0000000000..2adb8796cd --- /dev/null +++ b/spec/ruby/core/float/multiply_spec.rb @@ -0,0 +1,17 @@ +require_relative '../../spec_helper' +require_relative 'shared/arithmetic_exception_in_coerce' + +describe "Float#*" do + it_behaves_like :float_arithmetic_exception_in_coerce, :* + + it "returns self multiplied by other" do + (4923.98221 * 2).should be_close(9847.96442, TOLERANCE) + (6712.5 * 0.25).should be_close(1678.125, TOLERANCE) + (256.4096 * bignum_value).should be_close(4729922269242236862464.0, TOLERANCE) + end + + it "raises a TypeError when given a non-Numeric" do + -> { 13.0 * "10" }.should raise_error(TypeError) + -> { 13.0 * :symbol }.should raise_error(TypeError) + end +end diff --git a/spec/ruby/core/float/nan_spec.rb b/spec/ruby/core/float/nan_spec.rb new file mode 100644 index 0000000000..c1043ef21b --- /dev/null +++ b/spec/ruby/core/float/nan_spec.rb @@ -0,0 +1,9 @@ +require_relative '../../spec_helper' + +describe "Float#nan?" do + it "returns true if self is not a valid IEEE floating-point number" do + 0.0.should_not.nan? + -1.5.should_not.nan? + nan_value.should.nan? + end +end diff --git a/spec/ruby/core/float/negative_spec.rb b/spec/ruby/core/float/negative_spec.rb new file mode 100644 index 0000000000..511d92ade6 --- /dev/null +++ b/spec/ruby/core/float/negative_spec.rb @@ -0,0 +1,33 @@ +require_relative '../../spec_helper' + +describe "Float#negative?" do + describe "on positive numbers" do + it "returns false" do + 0.1.negative?.should be_false + end + end + + describe "on zero" do + it "returns false" do + 0.0.negative?.should be_false + end + end + + describe "on negative zero" do + it "returns false" do + -0.0.negative?.should be_false + end + end + + describe "on negative numbers" do + it "returns true" do + -0.1.negative?.should be_true + end + end + + describe "on NaN" do + it "returns false" do + nan_value.negative?.should be_false + end + end +end diff --git a/spec/ruby/core/float/next_float_spec.rb b/spec/ruby/core/float/next_float_spec.rb new file mode 100644 index 0000000000..29e2d31146 --- /dev/null +++ b/spec/ruby/core/float/next_float_spec.rb @@ -0,0 +1,49 @@ +require_relative '../../spec_helper' + +describe "Float#next_float" do + it "returns a float the smallest possible step greater than the receiver" do + barely_positive = 0.0.next_float + barely_positive.should == 0.0.next_float + + barely_positive.should > 0.0 + barely_positive.should < barely_positive.next_float + + midpoint = barely_positive / 2 + [0.0, barely_positive].should include midpoint + end + + it "returns Float::INFINITY for Float::INFINITY" do + Float::INFINITY.next_float.should == Float::INFINITY + end + + it "steps directly between MAX and INFINITY" do + (-Float::INFINITY).next_float.should == -Float::MAX + Float::MAX.next_float.should == Float::INFINITY + end + + it "steps directly between 1.0 and 1.0 + EPSILON" do + 1.0.next_float.should == 1.0 + Float::EPSILON + end + + it "steps directly between -1.0 and -1.0 + EPSILON/2" do + (-1.0).next_float.should == -1.0 + Float::EPSILON/2 + end + + it "reverses the effect of prev_float for all Floats except INFINITY and +0.0" do + num = -rand + num.prev_float.next_float.should == num + end + + it "returns negative zero when stepping upward from just below zero" do + x = (-0.0).prev_float.next_float + (1/x).should == -Float::INFINITY + end + + it "gives the same result for -0.0 as for +0.0" do + (-0.0).next_float.should == (0.0).next_float + end + + it "returns NAN if NAN was the receiver" do + Float::NAN.next_float.should.nan? + end +end diff --git a/spec/ruby/core/float/numerator_spec.rb b/spec/ruby/core/float/numerator_spec.rb new file mode 100644 index 0000000000..7832e8f056 --- /dev/null +++ b/spec/ruby/core/float/numerator_spec.rb @@ -0,0 +1,39 @@ +require_relative '../../spec_helper' + +describe "Float#numerator" do + before :all do + @numbers = [ + 29871.2722891, + 999.1**99.928888, + -72628191273.22, + 29282.2827, + -2927.00091, + 12.0, + Float::MAX, + ] + end + + it "converts self to a Rational object then returns its numerator" do + @numbers.each do |number| + number.infinite?.should be_nil + number.numerator.should == Rational(number).numerator + end + end + + it "returns 0 for 0.0" do + 0.0.numerator.should == 0 + end + + it "returns NaN for NaN" do + nan_value.numerator.nan?.should be_true + end + + it "returns Infinity for Infinity" do + infinity_value.numerator.infinite?.should == 1 + end + + it "returns -Infinity for -Infinity" do + (-infinity_value).numerator.infinite?.should == -1 + end + +end diff --git a/spec/ruby/core/float/phase_spec.rb b/spec/ruby/core/float/phase_spec.rb new file mode 100644 index 0000000000..2aa84024b4 --- /dev/null +++ b/spec/ruby/core/float/phase_spec.rb @@ -0,0 +1,6 @@ +require_relative '../../spec_helper' +require_relative 'shared/arg' + +describe "Float#phase" do + it_behaves_like :float_arg, :phase +end diff --git a/spec/ruby/core/float/plus_spec.rb b/spec/ruby/core/float/plus_spec.rb new file mode 100644 index 0000000000..e3e19d7f39 --- /dev/null +++ b/spec/ruby/core/float/plus_spec.rb @@ -0,0 +1,12 @@ +require_relative '../../spec_helper' +require_relative 'shared/arithmetic_exception_in_coerce' + +describe "Float#+" do + it_behaves_like :float_arithmetic_exception_in_coerce, :+ + + it "returns self plus other" do + (491.213 + 2).should be_close(493.213, TOLERANCE) + (9.99 + bignum_value).should be_close(18446744073709551616.0, TOLERANCE) + (1001.99 + 5.219).should be_close(1007.209, TOLERANCE) + end +end diff --git a/spec/ruby/core/float/positive_spec.rb b/spec/ruby/core/float/positive_spec.rb new file mode 100644 index 0000000000..575f92a720 --- /dev/null +++ b/spec/ruby/core/float/positive_spec.rb @@ -0,0 +1,33 @@ +require_relative '../../spec_helper' + +describe "Float#positive?" do + describe "on positive numbers" do + it "returns true" do + 0.1.positive?.should be_true + end + end + + describe "on zero" do + it "returns false" do + 0.0.positive?.should be_false + end + end + + describe "on negative zero" do + it "returns false" do + -0.0.positive?.should be_false + end + end + + describe "on negative numbers" do + it "returns false" do + -0.1.positive?.should be_false + end + end + + describe "on NaN" do + it "returns false" do + nan_value.positive?.should be_false + end + end +end diff --git a/spec/ruby/core/float/prev_float_spec.rb b/spec/ruby/core/float/prev_float_spec.rb new file mode 100644 index 0000000000..5e50269da7 --- /dev/null +++ b/spec/ruby/core/float/prev_float_spec.rb @@ -0,0 +1,49 @@ +require_relative '../../spec_helper' + +describe "Float#prev_float" do + it "returns a float the smallest possible step smaller than the receiver" do + barely_negative = 0.0.prev_float + barely_negative.should == 0.0.prev_float + + barely_negative.should < 0.0 + barely_negative.should > barely_negative.prev_float + + midpoint = barely_negative / 2 + [0.0, barely_negative].should include midpoint + end + + it "returns -Float::INFINITY for -Float::INFINITY" do + (-Float::INFINITY).prev_float.should == -Float::INFINITY + end + + it "steps directly between MAX and INFINITY" do + Float::INFINITY.prev_float.should == Float::MAX + (-Float::MAX).prev_float.should == -Float::INFINITY + end + + it "steps directly between 1.0 and 1.0 - EPSILON/2" do + 1.0.prev_float.should == 1.0 - Float::EPSILON/2 + end + + it "steps directly between -1.0 and -1.0 - EPSILON" do + (-1.0).prev_float.should == -1.0 - Float::EPSILON + end + + it "reverses the effect of next_float for all Floats except -INFINITY and -0.0" do + num = rand + num.next_float.prev_float.should == num + end + + it "returns positive zero when stepping downward from just above zero" do + x = 0.0.next_float.prev_float + (1/x).should == Float::INFINITY + end + + it "gives the same result for -0.0 as for +0.0" do + (0.0).prev_float.should == (-0.0).prev_float + end + + it "returns NAN if NAN was the receiver" do + Float::NAN.prev_float.should.nan? + end +end diff --git a/spec/ruby/core/float/quo_spec.rb b/spec/ruby/core/float/quo_spec.rb new file mode 100644 index 0000000000..b5c64f9d87 --- /dev/null +++ b/spec/ruby/core/float/quo_spec.rb @@ -0,0 +1,6 @@ +require_relative '../../spec_helper' +require_relative 'shared/quo' + +describe "Float#quo" do + it_behaves_like :float_quo, :quo +end diff --git a/spec/ruby/core/float/rationalize_spec.rb b/spec/ruby/core/float/rationalize_spec.rb new file mode 100644 index 0000000000..0c5bef7ac4 --- /dev/null +++ b/spec/ruby/core/float/rationalize_spec.rb @@ -0,0 +1,43 @@ +require_relative '../../spec_helper' + +describe "Float#rationalize" do + it "returns self as a simplified Rational with no argument" do + (3382729202.92822).rationalize.should == Rational(4806858197361, 1421) + end + + # FIXME: These specs need reviewing by somebody familiar with the + # algorithm used by #rationalize + it "simplifies self to the degree specified by a Rational argument" do + f = 0.3 + f.rationalize(Rational(1,10)).should == Rational(1,3) + f.rationalize(Rational(-1,10)).should == Rational(1,3) + + f = -f + f.rationalize(Rational(1,10)).should == Rational(-1,3) + f.rationalize(Rational(-1,10)).should == Rational(-1,3) + + end + + it "simplifies self to the degree specified by a Float argument" do + f = 0.3 + f.rationalize(0.05).should == Rational(1,3) + f.rationalize(0.001).should == Rational(3, 10) + + f = -f + f.rationalize(0.05).should == Rational(-1,3) + f.rationalize(0.001).should == Rational(-3,10) + end + + it "raises a FloatDomainError for Infinity" do + -> {infinity_value.rationalize}.should raise_error(FloatDomainError) + end + + it "raises a FloatDomainError for NaN" do + -> { nan_value.rationalize }.should raise_error(FloatDomainError) + end + + it "raises ArgumentError when passed more than one argument" do + -> { 0.3.rationalize(0.1, 0.1) }.should raise_error(ArgumentError) + -> { 0.3.rationalize(0.1, 0.1, 2) }.should raise_error(ArgumentError) + end +end diff --git a/spec/ruby/core/float/round_spec.rb b/spec/ruby/core/float/round_spec.rb new file mode 100644 index 0000000000..7e8c792051 --- /dev/null +++ b/spec/ruby/core/float/round_spec.rb @@ -0,0 +1,203 @@ +require_relative '../../spec_helper' + +describe "Float#round" do + it "returns the nearest Integer" do + 5.5.round.should == 6 + 0.4.round.should == 0 + 0.6.round.should == 1 + -1.4.round.should == -1 + -2.8.round.should == -3 + 0.0.round.should == 0 + end + + it "returns the nearest Integer for Float near the limit" do + 0.49999999999999994.round.should == 0 + -0.49999999999999994.round.should == 0 + end + + it "raises FloatDomainError for exceptional values" do + -> { (+infinity_value).round }.should raise_error(FloatDomainError) + -> { (-infinity_value).round }.should raise_error(FloatDomainError) + -> { nan_value.round }.should raise_error(FloatDomainError) + end + + it "rounds self to an optionally given precision" do + 5.5.round(0).should eql(6) + 5.7.round(1).should eql(5.7) + 1.2345678.round(2).should == 1.23 + 123456.78.round(-2).should eql(123500) # rounded up + -123456.78.round(-2).should eql(-123500) + 12.345678.round(3.999).should == 12.346 + end + + it "correctly rounds exact floats with a numerous digits in a fraction part" do + 0.8241000000000004.round(10).should == 0.8241 + 0.8241000000000002.round(10).should == 0.8241 + end + + it "returns zero when passed a negative argument with magnitude greater than magnitude of the whole number portion of the Float" do + 0.8346268.round(-1).should eql(0) + end + + it "raises a TypeError when its argument can not be converted to an Integer" do + -> { 1.0.round("4") }.should raise_error(TypeError) + -> { 1.0.round(nil) }.should raise_error(TypeError) + end + + it "raises FloatDomainError for exceptional values when passed a non-positive precision" do + -> { Float::INFINITY.round( 0) }.should raise_error(FloatDomainError) + -> { Float::INFINITY.round(-2) }.should raise_error(FloatDomainError) + -> { (-Float::INFINITY).round( 0) }.should raise_error(FloatDomainError) + -> { (-Float::INFINITY).round(-2) }.should raise_error(FloatDomainError) + end + + it "raises RangeError for NAN when passed a non-positive precision" do + -> { Float::NAN.round(0) }.should raise_error(RangeError) + -> { Float::NAN.round(-2) }.should raise_error(RangeError) + end + + it "returns self for exceptional values when passed a non-negative precision" do + Float::INFINITY.round(2).should == Float::INFINITY + (-Float::INFINITY).round(2).should == -Float::INFINITY + Float::NAN.round(2).should be_nan + end + + # redmine:5227 + it "works for corner cases" do + 42.0.round(308).should eql(42.0) + 1.0e307.round(2).should eql(1.0e307) + end + + # redmine:5271 + it "returns rounded values for big argument" do + 0.42.round(2.0**30).should == 0.42 + end + + it "returns rounded values for not so big argument" do + 0.42.round(2.0**23).should == 0.42 + end + + it "returns big values rounded to nearest" do + +2.5e20.round(-20).should eql( +3 * 10 ** 20 ) + -2.5e20.round(-20).should eql( -3 * 10 ** 20 ) + end + + # redmine #5272 + it "returns rounded values for big values" do + +2.4e20.round(-20).should eql( +2 * 10 ** 20 ) + -2.4e20.round(-20).should eql( -2 * 10 ** 20 ) + +2.5e200.round(-200).should eql( +3 * 10 ** 200 ) + +2.4e200.round(-200).should eql( +2 * 10 ** 200 ) + -2.5e200.round(-200).should eql( -3 * 10 ** 200 ) + -2.4e200.round(-200).should eql( -2 * 10 ** 200 ) + end + + it "returns different rounded values depending on the half option" do + 2.5.round(half: nil).should eql(3) + 2.5.round(half: :up).should eql(3) + 2.5.round(half: :down).should eql(2) + 2.5.round(half: :even).should eql(2) + 3.5.round(half: nil).should eql(4) + 3.5.round(half: :up).should eql(4) + 3.5.round(half: :down).should eql(3) + 3.5.round(half: :even).should eql(4) + (-2.5).round(half: nil).should eql(-3) + (-2.5).round(half: :up).should eql(-3) + (-2.5).round(half: :down).should eql(-2) + (-2.5).round(half: :even).should eql(-2) + end + + it "rounds self to an optionally given precision with a half option" do + 5.55.round(1, half: nil).should eql(5.6) + 5.55.round(1, half: :up).should eql(5.6) + 5.55.round(1, half: :down).should eql(5.5) + 5.55.round(1, half: :even).should eql(5.6) + -5.55.round(1, half: nil).should eql(-5.6) + -5.55.round(1, half: :up).should eql(-5.6) + -5.55.round(1, half: :down).should eql(-5.5) + -5.55.round(1, half: :even).should eql(-5.6) + end + + it "preserves cases where neighbouring floating pointer number increase the decimal places" do + 4.8100000000000005.round(5, half: nil).should eql(4.81) + 4.8100000000000005.round(5, half: :up).should eql(4.81) + 4.8100000000000005.round(5, half: :down).should eql(4.81) + 4.8100000000000005.round(5, half: :even).should eql(4.81) + -4.8100000000000005.round(5, half: nil).should eql(-4.81) + -4.8100000000000005.round(5, half: :up).should eql(-4.81) + -4.8100000000000005.round(5, half: :down).should eql(-4.81) + -4.8100000000000005.round(5, half: :even).should eql(-4.81) + 4.81.round(5, half: nil).should eql(4.81) + 4.81.round(5, half: :up).should eql(4.81) + 4.81.round(5, half: :down).should eql(4.81) + 4.81.round(5, half: :even).should eql(4.81) + -4.81.round(5, half: nil).should eql(-4.81) + -4.81.round(5, half: :up).should eql(-4.81) + -4.81.round(5, half: :down).should eql(-4.81) + -4.81.round(5, half: :even).should eql(-4.81) + 4.809999999999999.round(5, half: nil).should eql(4.81) + 4.809999999999999.round(5, half: :up).should eql(4.81) + 4.809999999999999.round(5, half: :down).should eql(4.81) + 4.809999999999999.round(5, half: :even).should eql(4.81) + -4.809999999999999.round(5, half: nil).should eql(-4.81) + -4.809999999999999.round(5, half: :up).should eql(-4.81) + -4.809999999999999.round(5, half: :down).should eql(-4.81) + -4.809999999999999.round(5, half: :even).should eql(-4.81) + end + + ruby_bug "#19318", ""..."3.3" do + # These numbers are neighbouring floating point numbers round a + # precise value. They test that the rounding modes work correctly + # round that value and precision is not lost which might cause + # incorrect results. + it "does not lose precision during the rounding process" do + 767573.1875850001.round(5, half: nil).should eql(767573.18759) + 767573.1875850001.round(5, half: :up).should eql(767573.18759) + 767573.1875850001.round(5, half: :down).should eql(767573.18759) + 767573.1875850001.round(5, half: :even).should eql(767573.18759) + -767573.1875850001.round(5, half: nil).should eql(-767573.18759) + -767573.1875850001.round(5, half: :up).should eql(-767573.18759) + -767573.1875850001.round(5, half: :down).should eql(-767573.18759) + -767573.1875850001.round(5, half: :even).should eql(-767573.18759) + 767573.187585.round(5, half: nil).should eql(767573.18759) + 767573.187585.round(5, half: :up).should eql(767573.18759) + 767573.187585.round(5, half: :down).should eql(767573.18758) + 767573.187585.round(5, half: :even).should eql(767573.18758) + -767573.187585.round(5, half: nil).should eql(-767573.18759) + -767573.187585.round(5, half: :up).should eql(-767573.18759) + -767573.187585.round(5, half: :down).should eql(-767573.18758) + -767573.187585.round(5, half: :even).should eql(-767573.18758) + 767573.1875849998.round(5, half: nil).should eql(767573.18758) + 767573.1875849998.round(5, half: :up).should eql(767573.18758) + 767573.1875849998.round(5, half: :down).should eql(767573.18758) + 767573.1875849998.round(5, half: :even).should eql(767573.18758) + -767573.1875849998.round(5, half: nil).should eql(-767573.18758) + -767573.1875849998.round(5, half: :up).should eql(-767573.18758) + -767573.1875849998.round(5, half: :down).should eql(-767573.18758) + -767573.1875849998.round(5, half: :even).should eql(-767573.18758) + end + end + + it "raises FloatDomainError for exceptional values with a half option" do + -> { (+infinity_value).round(half: :up) }.should raise_error(FloatDomainError) + -> { (-infinity_value).round(half: :down) }.should raise_error(FloatDomainError) + -> { nan_value.round(half: :even) }.should raise_error(FloatDomainError) + end + + it "raise for a non-existent round mode" do + -> { 14.2.round(half: :nonsense) }.should raise_error(ArgumentError, "invalid rounding mode: nonsense") + end + + describe "when 0.0 is given" do + it "returns self for positive ndigits" do + (0.0).round(5).inspect.should == "0.0" + (-0.0).round(1).inspect.should == "-0.0" + end + + it "returns 0 for 0 or undefined ndigits" do + (0.0).round.should == 0 + (-0.0).round(0).should == 0 + (0.0).round(half: :up) == 0 + end + end +end diff --git a/spec/ruby/core/float/shared/abs.rb b/spec/ruby/core/float/shared/abs.rb new file mode 100644 index 0000000000..607983322d --- /dev/null +++ b/spec/ruby/core/float/shared/abs.rb @@ -0,0 +1,21 @@ +require_relative '../../../spec_helper' + +describe :float_abs, shared: true do + it "returns the absolute value" do + -99.1.send(@method).should be_close(99.1, TOLERANCE) + 4.5.send(@method).should be_close(4.5, TOLERANCE) + 0.0.send(@method).should be_close(0.0, TOLERANCE) + end + + it "returns 0.0 if -0.0" do + (-0.0).send(@method).should be_positive_zero + end + + it "returns Infinity if -Infinity" do + (-infinity_value).send(@method).infinite?.should == 1 + end + + it "returns NaN if NaN" do + nan_value.send(@method).nan?.should be_true + end +end diff --git a/spec/ruby/core/float/shared/arg.rb b/spec/ruby/core/float/shared/arg.rb new file mode 100644 index 0000000000..136cf19ec8 --- /dev/null +++ b/spec/ruby/core/float/shared/arg.rb @@ -0,0 +1,36 @@ +describe :float_arg, shared: true do + it "returns NaN if NaN" do + f = nan_value + f.send(@method).nan?.should be_true + end + + it "returns self if NaN" do + f = nan_value + f.send(@method).should equal(f) + end + + it "returns 0 if positive" do + 1.0.send(@method).should == 0 + end + + it "returns 0 if +0.0" do + 0.0.send(@method).should == 0 + end + + it "returns 0 if +Infinity" do + infinity_value.send(@method).should == 0 + end + + it "returns Pi if negative" do + (-1.0).send(@method).should == Math::PI + end + + # This was established in r23960 + it "returns Pi if -0.0" do + (-0.0).send(@method).should == Math::PI + end + + it "returns Pi if -Infinity" do + (-infinity_value).send(@method).should == Math::PI + end +end diff --git a/spec/ruby/core/float/shared/arithmetic_exception_in_coerce.rb b/spec/ruby/core/float/shared/arithmetic_exception_in_coerce.rb new file mode 100644 index 0000000000..eec92d858f --- /dev/null +++ b/spec/ruby/core/float/shared/arithmetic_exception_in_coerce.rb @@ -0,0 +1,11 @@ +require_relative '../fixtures/classes' + +describe :float_arithmetic_exception_in_coerce, shared: true do + it "does not rescue exception raised in other#coerce" do + b = mock("numeric with failed #coerce") + b.should_receive(:coerce).and_raise(FloatSpecs::CoerceError) + + # e.g. 1.0 > b + -> { 1.0.send(@method, b) }.should raise_error(FloatSpecs::CoerceError) + end +end diff --git a/spec/ruby/core/float/shared/comparison_exception_in_coerce.rb b/spec/ruby/core/float/shared/comparison_exception_in_coerce.rb new file mode 100644 index 0000000000..3e2c1e28dd --- /dev/null +++ b/spec/ruby/core/float/shared/comparison_exception_in_coerce.rb @@ -0,0 +1,11 @@ +require_relative '../fixtures/classes' + +describe :float_comparison_exception_in_coerce, shared: true do + it "does not rescue exception raised in other#coerce" do + b = mock("numeric with failed #coerce") + b.should_receive(:coerce).and_raise(FloatSpecs::CoerceError) + + # e.g. 1.0 > b + -> { 1.0.send(@method, b) }.should raise_error(FloatSpecs::CoerceError) + end +end diff --git a/spec/ruby/core/float/shared/equal.rb b/spec/ruby/core/float/shared/equal.rb new file mode 100644 index 0000000000..4d524e1cf2 --- /dev/null +++ b/spec/ruby/core/float/shared/equal.rb @@ -0,0 +1,38 @@ +describe :float_equal, shared: true do + it "returns true if self has the same value as other" do + 1.0.send(@method, 1).should == true + 2.71828.send(@method, 1.428).should == false + -4.2.send(@method, 4.2).should == false + end + + it "calls 'other == self' if coercion fails" do + x = mock('other') + def x.==(other) + 2.0 == other + end + + 1.0.send(@method, x).should == false + 2.0.send(@method, x).should == true + end + + it "returns false if one side is NaN" do + [1.0, 42, bignum_value].each { |n| + (nan_value.send(@method, n)).should == false + (n.send(@method, nan_value)).should == false + } + end + + it "handles positive infinity" do + [1.0, 42, bignum_value].each { |n| + (infinity_value.send(@method, n)).should == false + (n.send(@method, infinity_value)).should == false + } + end + + it "handles negative infinity" do + [1.0, 42, bignum_value].each { |n| + ((-infinity_value).send(@method, n)).should == false + (n.send(@method, -infinity_value)).should == false + } + end +end diff --git a/spec/ruby/core/float/shared/modulo.rb b/spec/ruby/core/float/shared/modulo.rb new file mode 100644 index 0000000000..6700bd4f4e --- /dev/null +++ b/spec/ruby/core/float/shared/modulo.rb @@ -0,0 +1,48 @@ +describe :float_modulo, shared: true do + it "returns self modulo other" do + 6543.21.send(@method, 137).should be_close(104.21, TOLERANCE) + 5667.19.send(@method, bignum_value).should be_close(5667.19, TOLERANCE) + 6543.21.send(@method, 137.24).should be_close(92.9299999999996, TOLERANCE) + + -1.0.send(@method, 1).should == 0 + end + + it "returns self when modulus is +Infinity" do + 4.2.send(@method, Float::INFINITY).should == 4.2 + end + + it "returns -Infinity when modulus is -Infinity" do + 4.2.send(@method, -Float::INFINITY).should == -Float::INFINITY + end + + it "returns NaN when called on NaN or Infinities" do + Float::NAN.send(@method, 42).should be_nan + Float::INFINITY.send(@method, 42).should be_nan + (-Float::INFINITY).send(@method, 42).should be_nan + end + + it "returns NaN when modulus is NaN" do + 4.2.send(@method, Float::NAN).should be_nan + end + + it "returns -0.0 when called on -0.0 with a non zero modulus" do + r = (-0.0).send(@method, 42) + r.should == 0 + (1/r).should < 0 + + r = (-0.0).send(@method, Float::INFINITY) + r.should == 0 + (1/r).should < 0 + end + + it "tries to coerce the modulus" do + obj = mock("modulus") + obj.should_receive(:coerce).with(1.25).and_return([1.25, 0.5]) + (1.25 % obj).should == 0.25 + end + + it "raises a ZeroDivisionError if other is zero" do + -> { 1.0.send(@method, 0) }.should raise_error(ZeroDivisionError) + -> { 1.0.send(@method, 0.0) }.should raise_error(ZeroDivisionError) + end +end diff --git a/spec/ruby/core/float/shared/quo.rb b/spec/ruby/core/float/shared/quo.rb new file mode 100644 index 0000000000..0c90171b87 --- /dev/null +++ b/spec/ruby/core/float/shared/quo.rb @@ -0,0 +1,59 @@ +describe :float_quo, shared: true do + it "performs floating-point division between self and an Integer" do + 8.9.send(@method, 7).should == 1.2714285714285716 + end + + it "performs floating-point division between self and an Integer" do + 8.9.send(@method, 9999999999999**9).should == 8.900000000008011e-117 + end + + it "performs floating-point division between self and a Float" do + 2827.22.send(@method, 872.111111).should == 3.2418116961704433 + end + + it "returns NaN when the argument is NaN" do + -1819.999999.send(@method, nan_value).nan?.should be_true + 11109.1981271.send(@method, nan_value).nan?.should be_true + end + + it "returns Infinity when the argument is 0.0" do + 2827.22.send(@method, 0.0).infinite?.should == 1 + end + + it "returns -Infinity when the argument is 0.0 and self is negative" do + -48229.282.send(@method, 0.0).infinite?.should == -1 + end + + it "returns Infinity when the argument is 0" do + 2827.22.send(@method, 0).infinite?.should == 1 + end + + it "returns -Infinity when the argument is 0 and self is negative" do + -48229.282.send(@method, 0).infinite?.should == -1 + end + + it "returns 0.0 when the argument is Infinity" do + 47292.2821.send(@method, infinity_value).should == 0.0 + end + + it "returns -0.0 when the argument is -Infinity" do + 1.9999918.send(@method, -infinity_value).should == -0.0 + end + + it "performs floating-point division between self and a Rational" do + 74620.09.send(@method, Rational(2,3)).should == 111930.135 + end + + it "performs floating-point division between self and a Complex" do + 74620.09.send(@method, Complex(8,2)).should == Complex( + 8778.834117647059, -2194.7085294117646) + end + + it "raises a TypeError when argument isn't numeric" do + -> { 27292.2.send(@method, mock('non-numeric')) }.should raise_error(TypeError) + end + + it "raises an ArgumentError when passed multiple arguments" do + -> { 272.221.send(@method, 6,0.2) }.should raise_error(ArgumentError) + end +end diff --git a/spec/ruby/core/float/shared/to_i.rb b/spec/ruby/core/float/shared/to_i.rb new file mode 100644 index 0000000000..33b32ca533 --- /dev/null +++ b/spec/ruby/core/float/shared/to_i.rb @@ -0,0 +1,14 @@ +describe :float_to_i, shared: true do + it "returns self truncated to an Integer" do + 899.2.send(@method).should eql(899) + -1.122256e-45.send(@method).should eql(0) + 5_213_451.9201.send(@method).should eql(5213451) + 1.233450999123389e+12.send(@method).should eql(1233450999123) + -9223372036854775808.1.send(@method).should eql(-9223372036854775808) + 9223372036854775808.1.send(@method).should eql(9223372036854775808) + end + + it "raises a FloatDomainError for NaN" do + -> { nan_value.send(@method) }.should raise_error(FloatDomainError) + end +end diff --git a/spec/ruby/core/float/shared/to_s.rb b/spec/ruby/core/float/shared/to_s.rb new file mode 100644 index 0000000000..0925efc0f7 --- /dev/null +++ b/spec/ruby/core/float/shared/to_s.rb @@ -0,0 +1,308 @@ +describe :float_to_s, shared: true do + it "returns 'NaN' for NaN" do + nan_value().send(@method).should == 'NaN' + end + + it "returns 'Infinity' for positive infinity" do + infinity_value().send(@method).should == 'Infinity' + end + + it "returns '-Infinity' for negative infinity" do + (-infinity_value()).send(@method).should == '-Infinity' + end + + it "returns '0.0' for 0.0" do + 0.0.send(@method).should == "0.0" + end + + platform_is_not :openbsd do + it "emits '-' for -0.0" do + -0.0.send(@method).should == "-0.0" + end + end + + it "emits a '-' for negative values" do + -3.14.send(@method).should == "-3.14" + end + + it "emits a trailing '.0' for a whole number" do + 50.0.send(@method).should == "50.0" + end + + it "emits a trailing '.0' for the mantissa in e format" do + 1.0e20.send(@method).should == "1.0e+20" + end + + it "uses non-e format for a positive value with fractional part having 5 significant figures" do + 0.0001.send(@method).should == "0.0001" + end + + it "uses non-e format for a negative value with fractional part having 5 significant figures" do + -0.0001.send(@method).should == "-0.0001" + end + + it "uses e format for a positive value with fractional part having 6 significant figures" do + 0.00001.send(@method).should == "1.0e-05" + end + + it "uses e format for a negative value with fractional part having 6 significant figures" do + -0.00001.send(@method).should == "-1.0e-05" + end + + it "uses non-e format for a positive value with whole part having 15 significant figures" do + 10000000000000.0.send(@method).should == "10000000000000.0" + end + + it "uses non-e format for a negative value with whole part having 15 significant figures" do + -10000000000000.0.send(@method).should == "-10000000000000.0" + end + + it "uses non-e format for a positive value with whole part having 16 significant figures" do + 100000000000000.0.send(@method).should == "100000000000000.0" + end + + it "uses non-e format for a negative value with whole part having 16 significant figures" do + -100000000000000.0.send(@method).should == "-100000000000000.0" + end + + it "uses e format for a positive value with whole part having 18 significant figures" do + 10000000000000000.0.send(@method).should == "1.0e+16" + end + + it "uses e format for a negative value with whole part having 18 significant figures" do + -10000000000000000.0.send(@method).should == "-1.0e+16" + end + + it "uses e format for a positive value with whole part having 17 significant figures" do + 1000000000000000.0.send(@method).should == "1.0e+15" + end + + it "uses e format for a negative value with whole part having 17 significant figures" do + -1000000000000000.0.send(@method).should == "-1.0e+15" + end + + # #3273 + it "outputs the minimal, unique form necessary to recreate the value" do + value = 0.21611564636388508 + string = "0.21611564636388508" + + value.send(@method).should == string + string.to_f.should == value + end + + it "outputs the minimal, unique form to represent the value" do + 0.56.send(@method).should == "0.56" + end + + describe "matches" do + it "random examples in all ranges" do + # 50.times do + # bytes = (0...8).map { rand(256) } + # string = bytes.pack('C8') + # float = string.unpack('D').first + # puts "#{'%.20g' % float}.send(@method).should == #{float.send(@method).inspect}" + # end + + 2.5540217314354050325e+163.send(@method).should == "2.554021731435405e+163" + 2.5492588360356597544e-172.send(@method).should == "2.5492588360356598e-172" + 1.742770260934704852e-82.send(@method).should == "1.7427702609347049e-82" + 6.2108093676180883209e-104.send(@method).should == "6.210809367618088e-104" + -3.3448803488331067402e-143.send(@method).should == "-3.3448803488331067e-143" + -2.2740074343500832557e-168.send(@method).should == "-2.2740074343500833e-168" + 7.0587971678048535732e+191.send(@method).should == "7.058797167804854e+191" + -284438.88327586348169.send(@method).should == "-284438.8832758635" + 3.953272468476091301e+105.send(@method).should == "3.9532724684760913e+105" + -3.6361359552959847853e+100.send(@method).should == "-3.636135955295985e+100" + -1.3222325865575206185e-31.send(@method).should == "-1.3222325865575206e-31" + 1.1440138916932761366e+130.send(@method).should == "1.1440138916932761e+130" + 4.8750891560387561157e-286.send(@method).should == "4.875089156038756e-286" + 5.6101113356591453525e-257.send(@method).should == "5.610111335659145e-257" + -3.829644279545809575e-100.send(@method).should == "-3.8296442795458096e-100" + 1.5342839401396406117e-194.send(@method).should == "1.5342839401396406e-194" + 2.2284972755169921402e-144.send(@method).should == "2.228497275516992e-144" + 2.1825655917065601737e-61.send(@method).should == "2.1825655917065602e-61" + -2.6672271363524338322e-62.send(@method).should == "-2.667227136352434e-62" + -1.9257995160119059415e+21.send(@method).should == "-1.925799516011906e+21" + -8.9096732962887121718e-198.send(@method).should == "-8.909673296288712e-198" + 2.0202075376548644959e-90.send(@method).should == "2.0202075376548645e-90" + -7.7341602581786258961e-266.send(@method).should == "-7.734160258178626e-266" + 3.5134482598733635046e+98.send(@method).should == "3.5134482598733635e+98" + -2.124411722371029134e+154.send(@method).should == "-2.124411722371029e+154" + -4.573908787355718687e+110.send(@method).should == "-4.573908787355719e+110" + -1.9344425934170969879e-232.send(@method).should == "-1.934442593417097e-232" + -1.3274227399979271095e+171.send(@method).should == "-1.3274227399979271e+171" + 9.3495270482104442383e-283.send(@method).should == "9.349527048210444e-283" + -4.2046059371986483233e+307.send(@method).should == "-4.2046059371986483e+307" + 3.6133547278583543004e-117.send(@method).should == "3.613354727858354e-117" + 4.9247416523566613499e-08.send(@method).should == "4.9247416523566613e-08" + 1.6936145488250064007e-71.send(@method).should == "1.6936145488250064e-71" + 2.4455483206829433098e+96.send(@method).should == "2.4455483206829433e+96" + 7.9797449851436455384e+124.send(@method).should == "7.979744985143646e+124" + -1.3873689634457876774e-129.send(@method).should == "-1.3873689634457877e-129" + 3.9761102037533483075e+284.send(@method).should == "3.976110203753348e+284" + -4.2819791952139402486e-303.send(@method).should == "-4.28197919521394e-303" + -5.7981017546689831298e-116.send(@method).should == "-5.798101754668983e-116" + -3.953266497860534199e-28.send(@method).should == "-3.953266497860534e-28" + -2.0659852720290440959e-243.send(@method).should == "-2.065985272029044e-243" + 8.9670488995878688018e-05.send(@method).should == "8.967048899587869e-05" + -1.2317943708113061768e-98.send(@method).should == "-1.2317943708113062e-98" + -3.8930768307633080463e+248.send(@method).should == "-3.893076830763308e+248" + 6.5854032671803925627e-239.send(@method).should == "6.5854032671803926e-239" + 4.6257022188980878952e+177.send(@method).should == "4.625702218898088e+177" + -1.9397155125507235603e-187.send(@method).should == "-1.9397155125507236e-187" + 8.5752156951245705056e+117.send(@method).should == "8.57521569512457e+117" + -2.4784875958162501671e-132.send(@method).should == "-2.4784875958162502e-132" + -4.4125691841230058457e-203.send(@method).should == "-4.412569184123006e-203" + end + + it "random examples in human ranges" do + # 50.times do + # formatted = '' + # rand(1..3).times do + # formatted << rand(10).to_s + # end + # formatted << '.' + # rand(1..9).times do + # formatted << rand(10).to_s + # end + # float = formatted.to_f + # puts "#{'%.20f' % float}.send(@method).should == #{float.send(@method).inspect}" + # end + + 5.17869899999999994122.send(@method).should == "5.178699" + 905.62695729999995819526.send(@method).should == "905.6269573" + 62.75999999999999801048.send(@method).should == "62.76" + 6.93856795800000014651.send(@method).should == "6.938567958" + 4.95999999999999996447.send(@method).should == "4.96" + 32.77993899999999882766.send(@method).should == "32.779939" + 544.12756779999995160324.send(@method).should == "544.1275678" + 66.25801119999999855281.send(@method).should == "66.2580112" + 7.90000000000000035527.send(@method).should == "7.9" + 5.93100000000000004974.send(@method).should == "5.931" + 5.21229313600000043749.send(@method).should == "5.212293136" + 503.44173809000000119340.send(@method).should == "503.44173809" + 79.26000000000000511591.send(@method).should == "79.26" + 8.51524999999999998579.send(@method).should == "8.51525" + 174.00000000000000000000.send(@method).should == "174.0" + 50.39580000000000126192.send(@method).should == "50.3958" + 35.28999999999999914735.send(@method).should == "35.29" + 5.43136675399999990788.send(@method).should == "5.431366754" + 654.07680000000004838512.send(@method).should == "654.0768" + 6.07423700000000010846.send(@method).should == "6.074237" + 102.25779799999999397642.send(@method).should == "102.257798" + 5.08129999999999970584.send(@method).should == "5.0813" + 6.00000000000000000000.send(@method).should == "6.0" + 8.30000000000000071054.send(@method).should == "8.3" + 32.68345999999999662577.send(@method).should == "32.68346" + 581.11170000000004165486.send(@method).should == "581.1117" + 76.31342999999999676675.send(@method).should == "76.31343" + 438.30826000000001840817.send(@method).should == "438.30826" + 482.06631994000002805478.send(@method).should == "482.06631994" + 55.92721026899999969828.send(@method).should == "55.927210269" + 4.00000000000000000000.send(@method).should == "4.0" + 55.86693999999999959982.send(@method).should == "55.86694" + 787.98299999999994724931.send(@method).should == "787.983" + 5.73810511000000023074.send(@method).should == "5.73810511" + 74.51926810000000500622.send(@method).should == "74.5192681" + 892.89999999999997726263.send(@method).should == "892.9" + 68.27299999999999613465.send(@method).should == "68.273" + 904.10000000000002273737.send(@method).should == "904.1" + 5.23200000000000020606.send(@method).should == "5.232" + 4.09628000000000014325.send(@method).should == "4.09628" + 46.05152633699999853434.send(@method).should == "46.051526337" + 142.12884990599999923688.send(@method).should == "142.128849906" + 3.83057023500000015659.send(@method).should == "3.830570235" + 11.81684594699999912848.send(@method).should == "11.816845947" + 80.50000000000000000000.send(@method).should == "80.5" + 382.18215010000000120272.send(@method).should == "382.1821501" + 55.38444606899999911320.send(@method).should == "55.384446069" + 5.78000000000000024869.send(@method).should == "5.78" + 2.88244999999999995666.send(@method).should == "2.88245" + 43.27709999999999723741.send(@method).should == "43.2771" + end + + it "random values from divisions" do + (1.0 / 7).send(@method).should == "0.14285714285714285" + + # 50.times do + # a = rand(10) + # b = rand(10) + # c = rand(10) + # d = rand(10) + # expression = "#{a}.#{b} / #{c}.#{d}" + # puts " (#{expression}).send(@method).should == #{eval(expression).send(@method).inspect}" + # end + + (1.1 / 7.1).send(@method).should == "0.15492957746478875" + (6.5 / 8.8).send(@method).should == "0.7386363636363635" + (4.8 / 4.3).send(@method).should == "1.1162790697674418" + (4.0 / 1.9).send(@method).should == "2.1052631578947367" + (9.1 / 0.8).send(@method).should == "11.374999999999998" + (5.3 / 7.5).send(@method).should == "0.7066666666666667" + (2.8 / 1.8).send(@method).should == "1.5555555555555554" + (2.1 / 2.5).send(@method).should == "0.8400000000000001" + (3.5 / 6.0).send(@method).should == "0.5833333333333334" + (4.6 / 0.3).send(@method).should == "15.333333333333332" + (0.6 / 2.4).send(@method).should == "0.25" + (1.3 / 9.1).send(@method).should == "0.14285714285714288" + (0.3 / 5.0).send(@method).should == "0.06" + (5.0 / 4.2).send(@method).should == "1.1904761904761905" + (3.0 / 2.0).send(@method).should == "1.5" + (6.3 / 2.0).send(@method).should == "3.15" + (5.4 / 6.0).send(@method).should == "0.9" + (9.6 / 8.1).send(@method).should == "1.1851851851851851" + (8.7 / 1.6).send(@method).should == "5.437499999999999" + (1.9 / 7.8).send(@method).should == "0.24358974358974358" + (0.5 / 2.1).send(@method).should == "0.23809523809523808" + (9.3 / 5.8).send(@method).should == "1.6034482758620692" + (2.7 / 8.0).send(@method).should == "0.3375" + (9.7 / 7.8).send(@method).should == "1.2435897435897436" + (8.1 / 2.4).send(@method).should == "3.375" + (7.7 / 2.7).send(@method).should == "2.8518518518518516" + (7.9 / 1.7).send(@method).should == "4.647058823529412" + (6.5 / 8.2).send(@method).should == "0.7926829268292683" + (7.8 / 9.6).send(@method).should == "0.8125" + (2.2 / 4.6).send(@method).should == "0.47826086956521746" + (0.0 / 1.0).send(@method).should == "0.0" + (8.3 / 2.9).send(@method).should == "2.8620689655172415" + (3.1 / 6.1).send(@method).should == "0.5081967213114754" + (2.8 / 7.8).send(@method).should == "0.358974358974359" + (8.0 / 0.1).send(@method).should == "80.0" + (1.7 / 6.4).send(@method).should == "0.265625" + (1.8 / 5.4).send(@method).should == "0.3333333333333333" + (8.0 / 5.8).send(@method).should == "1.3793103448275863" + (5.2 / 4.1).send(@method).should == "1.2682926829268295" + (9.8 / 5.8).send(@method).should == "1.6896551724137934" + (5.4 / 9.5).send(@method).should == "0.5684210526315789" + (8.4 / 4.9).send(@method).should == "1.7142857142857142" + (1.7 / 3.5).send(@method).should == "0.4857142857142857" + (1.2 / 5.1).send(@method).should == "0.23529411764705882" + (1.4 / 2.0).send(@method).should == "0.7" + (4.8 / 8.0).send(@method).should == "0.6" + (9.0 / 2.5).send(@method).should == "3.6" + (0.2 / 0.6).send(@method).should == "0.33333333333333337" + (7.8 / 5.2).send(@method).should == "1.5" + (9.5 / 5.5).send(@method).should == "1.7272727272727273" + end + end + + describe 'encoding' do + before :each do + @internal = Encoding.default_internal + end + + after :each do + Encoding.default_internal = @internal + end + + it "returns a String in US-ASCII encoding when Encoding.default_internal is nil" do + Encoding.default_internal = nil + 1.23.send(@method).encoding.should equal(Encoding::US_ASCII) + end + + it "returns a String in US-ASCII encoding when Encoding.default_internal is not nil" do + Encoding.default_internal = Encoding::IBM437 + 5.47.send(@method).encoding.should equal(Encoding::US_ASCII) + end + end +end diff --git a/spec/ruby/core/float/to_f_spec.rb b/spec/ruby/core/float/to_f_spec.rb new file mode 100644 index 0000000000..6677556cd9 --- /dev/null +++ b/spec/ruby/core/float/to_f_spec.rb @@ -0,0 +1,9 @@ +require_relative '../../spec_helper' + +describe "Float#to_f" do + it "returns self" do + -500.3.to_f.should == -500.3 + 267.51.to_f.should == 267.51 + 1.1412.to_f.should == 1.1412 + end +end diff --git a/spec/ruby/core/float/to_i_spec.rb b/spec/ruby/core/float/to_i_spec.rb new file mode 100644 index 0000000000..91d84c5fa3 --- /dev/null +++ b/spec/ruby/core/float/to_i_spec.rb @@ -0,0 +1,6 @@ +require_relative '../../spec_helper' +require_relative 'shared/to_i' + +describe "Float#to_i" do + it_behaves_like :float_to_i, :to_i +end diff --git a/spec/ruby/core/float/to_int_spec.rb b/spec/ruby/core/float/to_int_spec.rb new file mode 100644 index 0000000000..084a58b431 --- /dev/null +++ b/spec/ruby/core/float/to_int_spec.rb @@ -0,0 +1,6 @@ +require_relative '../../spec_helper' +require_relative 'shared/to_i' + +describe "Float#to_int" do + it_behaves_like :float_to_i, :to_int +end diff --git a/spec/ruby/core/float/to_r_spec.rb b/spec/ruby/core/float/to_r_spec.rb new file mode 100644 index 0000000000..907ff08f27 --- /dev/null +++ b/spec/ruby/core/float/to_r_spec.rb @@ -0,0 +1,5 @@ +require_relative '../../spec_helper' + +describe "Float#to_r" do + it "needs to be reviewed for spec completeness" +end diff --git a/spec/ruby/core/float/to_s_spec.rb b/spec/ruby/core/float/to_s_spec.rb new file mode 100644 index 0000000000..6727a883f8 --- /dev/null +++ b/spec/ruby/core/float/to_s_spec.rb @@ -0,0 +1,6 @@ +require_relative '../../spec_helper' +require_relative 'shared/to_s' + +describe "Float#to_s" do + it_behaves_like :float_to_s, :to_s +end diff --git a/spec/ruby/core/float/truncate_spec.rb b/spec/ruby/core/float/truncate_spec.rb new file mode 100644 index 0000000000..2c80145f9f --- /dev/null +++ b/spec/ruby/core/float/truncate_spec.rb @@ -0,0 +1,14 @@ +require_relative '../../spec_helper' +require_relative 'shared/to_i' + +describe "Float#truncate" do + it_behaves_like :float_to_i, :truncate + + it "returns self truncated to an optionally given precision" do + 2.1679.truncate(0).should eql(2) + 7.1.truncate(1).should eql(7.1) + 214.94.truncate(-1).should eql(210) + -1.234.truncate(2).should eql(-1.23) + 5.123812.truncate(4).should eql(5.1238) + end +end diff --git a/spec/ruby/core/float/uminus_spec.rb b/spec/ruby/core/float/uminus_spec.rb new file mode 100644 index 0000000000..57bae0fb4b --- /dev/null +++ b/spec/ruby/core/float/uminus_spec.rb @@ -0,0 +1,28 @@ +require_relative '../../spec_helper' + +describe "Float#-@" do + it "negates self" do + (2.221.send(:-@)).should be_close(-2.221, TOLERANCE) + -2.01.should be_close(-2.01,TOLERANCE) + -2_455_999_221.5512.should be_close(-2455999221.5512, TOLERANCE) + (--5.5).should be_close(5.5, TOLERANCE) + -8.551.send(:-@).should be_close(8.551, TOLERANCE) + end + + it "negates self at Float boundaries" do + Float::MAX.send(:-@).should be_close(0.0 - Float::MAX, TOLERANCE) + Float::MIN.send(:-@).should be_close(0.0 - Float::MIN, TOLERANCE) + end + + it "returns negative infinity for positive infinity" do + infinity_value.send(:-@).infinite?.should == -1 + end + + it "returns positive infinity for negative infinity" do + (-infinity_value).send(:-@).infinite?.should == 1 + end + + it "returns NaN for NaN" do + nan_value.send(:-@).should.nan? + end +end diff --git a/spec/ruby/core/float/uplus_spec.rb b/spec/ruby/core/float/uplus_spec.rb new file mode 100644 index 0000000000..936123558c --- /dev/null +++ b/spec/ruby/core/float/uplus_spec.rb @@ -0,0 +1,9 @@ +require_relative '../../spec_helper' + +describe "Float#+@" do + it "returns the same value with same sign (twos complement)" do + 34.56.send(:+@).should == 34.56 + -34.56.send(:+@).should == -34.56 + 0.0.send(:+@).should eql(0.0) + end +end diff --git a/spec/ruby/core/float/zero_spec.rb b/spec/ruby/core/float/zero_spec.rb new file mode 100644 index 0000000000..1f3de27793 --- /dev/null +++ b/spec/ruby/core/float/zero_spec.rb @@ -0,0 +1,9 @@ +require_relative '../../spec_helper' + +describe "Float#zero?" do + it "returns true if self is 0.0" do + 0.0.should.zero? + 1.0.should_not.zero? + -1.0.should_not.zero? + end +end |