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-rw-r--r--spec/ruby/core/numeric/shared/abs.rb19
-rw-r--r--spec/ruby/core/numeric/shared/arg.rb38
-rw-r--r--spec/ruby/core/numeric/shared/conj.rb20
-rw-r--r--spec/ruby/core/numeric/shared/imag.rb26
-rw-r--r--spec/ruby/core/numeric/shared/rect.rb48
-rw-r--r--spec/ruby/core/numeric/shared/step.rb410
6 files changed, 561 insertions, 0 deletions
diff --git a/spec/ruby/core/numeric/shared/abs.rb b/spec/ruby/core/numeric/shared/abs.rb
new file mode 100644
index 0000000000..c3dadccfd6
--- /dev/null
+++ b/spec/ruby/core/numeric/shared/abs.rb
@@ -0,0 +1,19 @@
+require_relative '../../../spec_helper'
+require_relative '../fixtures/classes'
+
+describe :numeric_abs, shared: true do
+ before :each do
+ @obj = NumericSpecs::Subclass.new
+ end
+
+ it "returns self when self is greater than 0" do
+ @obj.should_receive(:<).with(0).and_return(false)
+ @obj.send(@method).should == @obj
+ end
+
+ it "returns self\#@- when self is less than 0" do
+ @obj.should_receive(:<).with(0).and_return(true)
+ @obj.should_receive(:-@).and_return(:absolute_value)
+ @obj.send(@method).should == :absolute_value
+ end
+end
diff --git a/spec/ruby/core/numeric/shared/arg.rb b/spec/ruby/core/numeric/shared/arg.rb
new file mode 100644
index 0000000000..c8e7ad8333
--- /dev/null
+++ b/spec/ruby/core/numeric/shared/arg.rb
@@ -0,0 +1,38 @@
+require_relative '../../../spec_helper'
+
+describe :numeric_arg, shared: true do
+ before :each do
+ @numbers = [
+ 20,
+ Rational(3, 4),
+ bignum_value,
+ infinity_value
+ ]
+ end
+
+ it "returns 0 if positive" do
+ @numbers.each do |number|
+ number.send(@method).should == 0
+ end
+ end
+
+ it "returns Pi if negative" do
+ @numbers.each do |number|
+ (0-number).send(@method).should == Math::PI
+ end
+ end
+
+ describe "with a Numeric subclass" do
+ it "returns 0 if self#<(0) returns false" do
+ numeric = mock_numeric('positive')
+ numeric.should_receive(:<).with(0).and_return(false)
+ numeric.send(@method).should == 0
+ end
+
+ it "returns Pi if self#<(0) returns true" do
+ numeric = mock_numeric('positive')
+ numeric.should_receive(:<).with(0).and_return(true)
+ numeric.send(@method).should == Math::PI
+ end
+ end
+end
diff --git a/spec/ruby/core/numeric/shared/conj.rb b/spec/ruby/core/numeric/shared/conj.rb
new file mode 100644
index 0000000000..6d5197ecab
--- /dev/null
+++ b/spec/ruby/core/numeric/shared/conj.rb
@@ -0,0 +1,20 @@
+require_relative '../../../spec_helper'
+
+describe :numeric_conj, shared: true do
+ before :each do
+ @numbers = [
+ 20, # Integer
+ 398.72, # Float
+ Rational(3, 4), # Rational
+ bignum_value,
+ infinity_value,
+ nan_value
+ ]
+ end
+
+ it "returns self" do
+ @numbers.each do |number|
+ number.send(@method).should equal(number)
+ end
+ end
+end
diff --git a/spec/ruby/core/numeric/shared/imag.rb b/spec/ruby/core/numeric/shared/imag.rb
new file mode 100644
index 0000000000..4f117e243a
--- /dev/null
+++ b/spec/ruby/core/numeric/shared/imag.rb
@@ -0,0 +1,26 @@
+require_relative '../../../spec_helper'
+
+describe :numeric_imag, shared: true do
+ before :each do
+ @numbers = [
+ 20, # Integer
+ 398.72, # Float
+ Rational(3, 4), # Rational
+ bignum_value, # Bignum
+ infinity_value,
+ nan_value
+ ].map{|n| [n,-n]}.flatten
+ end
+
+ it "returns 0" do
+ @numbers.each do |number|
+ number.send(@method).should == 0
+ end
+ end
+
+ it "raises an ArgumentError if given any arguments" do
+ @numbers.each do |number|
+ -> { number.send(@method, number) }.should raise_error(ArgumentError)
+ end
+ end
+end
diff --git a/spec/ruby/core/numeric/shared/rect.rb b/spec/ruby/core/numeric/shared/rect.rb
new file mode 100644
index 0000000000..120a69b1c4
--- /dev/null
+++ b/spec/ruby/core/numeric/shared/rect.rb
@@ -0,0 +1,48 @@
+require_relative '../../../spec_helper'
+
+describe :numeric_rect, shared: true do
+ before :each do
+ @numbers = [
+ 20, # Integer
+ 398.72, # Float
+ Rational(3, 4), # Rational
+ 99999999**99, # Bignum
+ infinity_value,
+ nan_value
+ ]
+ end
+
+ it "returns an Array" do
+ @numbers.each do |number|
+ number.send(@method).should be_an_instance_of(Array)
+ end
+ end
+
+ it "returns a two-element Array" do
+ @numbers.each do |number|
+ number.send(@method).size.should == 2
+ end
+ end
+
+ it "returns self as the first element" do
+ @numbers.each do |number|
+ if Float === number and number.nan?
+ number.send(@method).first.nan?.should be_true
+ else
+ number.send(@method).first.should == number
+ end
+ end
+ end
+
+ it "returns 0 as the last element" do
+ @numbers.each do |number|
+ number.send(@method).last.should == 0
+ end
+ end
+
+ it "raises an ArgumentError if given any arguments" do
+ @numbers.each do |number|
+ -> { number.send(@method, number) }.should raise_error(ArgumentError)
+ end
+ end
+end
diff --git a/spec/ruby/core/numeric/shared/step.rb b/spec/ruby/core/numeric/shared/step.rb
new file mode 100644
index 0000000000..977ec6de02
--- /dev/null
+++ b/spec/ruby/core/numeric/shared/step.rb
@@ -0,0 +1,410 @@
+require_relative '../../../spec_helper'
+require_relative '../fixtures/classes'
+
+# Describes Numeric#step shared specs between different argument styles.
+# To be able to do it, the @step ivar must contain a Proc that transforms
+# the step call arguments passed as positional arguments to the style of
+# arguments pretended to test.
+describe :numeric_step, shared: true do
+ before :each do
+ ScratchPad.record []
+ @prc = -> x { ScratchPad << x }
+ end
+
+ it "defaults to step = 1" do
+ @step.call(1, 5, &@prc)
+ ScratchPad.recorded.should eql [1, 2, 3, 4, 5]
+ end
+
+ it "defaults to an infinite limit with a step size of 1 for Integers" do
+ 1.step.first(5).should == [1, 2, 3, 4, 5]
+ end
+
+ it "defaults to an infinite limit with a step size of 1.0 for Floats" do
+ 1.0.step.first(5).should == [1.0, 2.0, 3.0, 4.0, 5.0]
+ end
+
+ describe "when self, stop and step are Integers" do
+ it "yields only Integers" do
+ @step.call(1, 5, 1) { |x| x.should be_an_instance_of(Integer) }
+ end
+
+ describe "with a positive step" do
+ it "yields while increasing self by step until stop is reached" do
+ @step.call(1, 5, 1, &@prc)
+ ScratchPad.recorded.should eql [1, 2, 3, 4, 5]
+ end
+
+ it "yields once when self equals stop" do
+ @step.call(1, 1, 1, &@prc)
+ ScratchPad.recorded.should eql [1]
+ end
+
+ it "does not yield when self is greater than stop" do
+ @step.call(2, 1, 1, &@prc)
+ ScratchPad.recorded.should eql []
+ end
+ end
+
+ describe "with a negative step" do
+ it "yields while decreasing self by step until stop is reached" do
+ @step.call(5, 1, -1, &@prc)
+ ScratchPad.recorded.should eql [5, 4, 3, 2, 1]
+ end
+
+ it "yields once when self equals stop" do
+ @step.call(5, 5, -1, &@prc)
+ ScratchPad.recorded.should eql [5]
+ end
+
+ it "does not yield when self is less than stop" do
+ @step.call(1, 5, -1, &@prc)
+ ScratchPad.recorded.should == []
+ end
+ end
+ end
+
+ describe "when at least one of self, stop or step is a Float" do
+ it "yields Floats even if only self is a Float" do
+ @step.call(1.5, 5, 1) { |x| x.should be_an_instance_of(Float) }
+ end
+
+ it "yields Floats even if only stop is a Float" do
+ @step.call(1, 5.0, 1) { |x| x.should be_an_instance_of(Float) }
+ end
+
+ it "yields Floats even if only step is a Float" do
+ @step.call(1, 5, 1.0) { |x| x.should be_an_instance_of(Float) }
+ end
+
+ describe "with a positive step" do
+ it "yields while increasing self by step while < stop" do
+ @step.call(1.5, 5, 1, &@prc)
+ ScratchPad.recorded.should eql [1.5, 2.5, 3.5, 4.5]
+ end
+
+ it "yields once when self equals stop" do
+ @step.call(1.5, 1.5, 1, &@prc)
+ ScratchPad.recorded.should eql [1.5]
+ end
+
+ it "does not yield when self is greater than stop" do
+ @step.call(2.5, 1.5, 1, &@prc)
+ ScratchPad.recorded.should == []
+ end
+
+ it "is careful about not yielding a value greater than limit" do
+ # As 9*1.3+1.0 == 12.700000000000001 > 12.7, we test:
+ @step.call(1.0, 12.7, 1.3, &@prc)
+ ScratchPad.recorded.should eql [1.0, 2.3, 3.6, 4.9, 6.2, 7.5, 8.8, 10.1, 11.4, 12.7]
+ end
+ end
+
+ describe "with a negative step" do
+ it "yields while decreasing self by step while self > stop" do
+ @step.call(5, 1.5, -1, &@prc)
+ ScratchPad.recorded.should eql [5.0, 4.0, 3.0, 2.0]
+ end
+
+ it "yields once when self equals stop" do
+ @step.call(1.5, 1.5, -1, &@prc)
+ ScratchPad.recorded.should eql [1.5]
+ end
+
+ it "does not yield when self is less than stop" do
+ @step.call(1, 5, -1.5, &@prc)
+ ScratchPad.recorded.should == []
+ end
+
+ it "is careful about not yielding a value smaller than limit" do
+ # As -9*1.3-1.0 == -12.700000000000001 < -12.7, we test:
+ @step.call(-1.0, -12.7, -1.3, &@prc)
+ ScratchPad.recorded.should eql [-1.0, -2.3, -3.6, -4.9, -6.2, -7.5, -8.8, -10.1, -11.4, -12.7]
+ end
+ end
+
+ describe "with a positive Infinity step" do
+ it "yields once if self < stop" do
+ @step.call(42, 100, infinity_value, &@prc)
+ ScratchPad.recorded.should eql [42.0]
+ end
+
+ it "yields once when stop is Infinity" do
+ @step.call(42, infinity_value, infinity_value, &@prc)
+ ScratchPad.recorded.should eql [42.0]
+ end
+
+ it "yields once when self equals stop" do
+ @step.call(42, 42, infinity_value, &@prc)
+ ScratchPad.recorded.should eql [42.0]
+ end
+
+ it "yields once when self and stop are Infinity" do
+ # @step.call(infinity_value, infinity_value, infinity_value, &@prc)
+ @step.call(infinity_value, infinity_value, infinity_value, &@prc)
+ ScratchPad.recorded.should == [infinity_value]
+ end
+
+ it "does not yield when self > stop" do
+ @step.call(100, 42, infinity_value, &@prc)
+ ScratchPad.recorded.should == []
+ end
+
+ it "does not yield when stop is -Infinity" do
+ @step.call(42, -infinity_value, infinity_value, &@prc)
+ ScratchPad.recorded.should == []
+ end
+ end
+
+ describe "with a negative Infinity step" do
+ it "yields once if self > stop" do
+ @step.call(42, 6, -infinity_value, &@prc)
+ ScratchPad.recorded.should eql [42.0]
+ end
+
+ it "yields once if stop is -Infinity" do
+ @step.call(42, -infinity_value, -infinity_value, &@prc)
+ ScratchPad.recorded.should eql [42.0]
+ end
+
+ it "yields once when self equals stop" do
+ @step.call(42, 42, -infinity_value, &@prc)
+ ScratchPad.recorded.should eql [42.0]
+ end
+
+ it "yields once when self and stop are Infinity" do
+ @step.call(infinity_value, infinity_value, -infinity_value, &@prc)
+ ScratchPad.recorded.should == [infinity_value]
+ end
+
+ it "does not yield when self > stop" do
+ @step.call(42, 100, -infinity_value, &@prc)
+ ScratchPad.recorded.should == []
+ end
+
+ it "does not yield when stop is Infinity" do
+ @step.call(42, infinity_value, -infinity_value, &@prc)
+ ScratchPad.recorded.should == []
+ end
+ end
+
+ describe "with a Infinity stop and a positive step" do
+ it "does not yield when self is infinity" do
+ @step.call(infinity_value, infinity_value, 1, &@prc)
+ ScratchPad.recorded.should == []
+ end
+ end
+
+ describe "with a Infinity stop and a negative step" do
+ it "does not yield when self is negative infinity" do
+ @step.call(-infinity_value, infinity_value, -1, &@prc)
+ ScratchPad.recorded.should == []
+ end
+
+ it "does not yield when self is positive infinity" do
+ @step.call(infinity_value, infinity_value, -1, &@prc)
+ ScratchPad.recorded.should == []
+ end
+ end
+
+ describe "with a negative Infinity stop and a positive step" do
+ it "does not yield when self is negative infinity" do
+ @step.call(-infinity_value, -infinity_value, 1, &@prc)
+ ScratchPad.recorded.should == []
+ end
+ end
+
+ describe "with a negative Infinity stop and a negative step" do
+ it "does not yield when self is negative infinity" do
+ @step.call(-infinity_value, -infinity_value, -1, &@prc)
+ ScratchPad.recorded.should == []
+ end
+ end
+
+ end
+
+ describe "when step is a String" do
+ describe "with self and stop as Integers" do
+ it "raises an ArgumentError when step is a numeric representation" do
+ -> { @step.call(1, 5, "1") {} }.should raise_error(ArgumentError)
+ -> { @step.call(1, 5, "0.1") {} }.should raise_error(ArgumentError)
+ -> { @step.call(1, 5, "1/3") {} }.should raise_error(ArgumentError)
+ end
+ it "raises an ArgumentError with step as an alphanumeric string" do
+ -> { @step.call(1, 5, "foo") {} }.should raise_error(ArgumentError)
+ end
+ end
+
+ describe "with self and stop as Floats" do
+ it "raises an ArgumentError when step is a numeric representation" do
+ -> { @step.call(1.1, 5.1, "1") {} }.should raise_error(ArgumentError)
+ -> { @step.call(1.1, 5.1, "0.1") {} }.should raise_error(ArgumentError)
+ -> { @step.call(1.1, 5.1, "1/3") {} }.should raise_error(ArgumentError)
+ end
+ it "raises an ArgumentError with step as an alphanumeric string" do
+ -> { @step.call(1.1, 5.1, "foo") {} }.should raise_error(ArgumentError)
+ end
+ end
+ end
+
+ it "does not rescue ArgumentError exceptions" do
+ -> { @step.call(1, 2) { raise ArgumentError, "" }}.should raise_error(ArgumentError)
+ end
+
+ it "does not rescue TypeError exceptions" do
+ -> { @step.call(1, 2) { raise TypeError, "" } }.should raise_error(TypeError)
+ end
+
+ describe "when no block is given" do
+ step_enum_class = Enumerator::ArithmeticSequence
+
+ it "returns an #{step_enum_class} when not passed a block and self > stop" do
+ @step.call(1, 0, 2).should be_an_instance_of(step_enum_class)
+ end
+
+ it "returns an #{step_enum_class} when not passed a block and self < stop" do
+ @step.call(1, 2, 3).should be_an_instance_of(step_enum_class)
+ end
+
+ it "returns an #{step_enum_class} that uses the given step" do
+ @step.call(0, 5, 2).to_a.should eql [0, 2, 4]
+ end
+
+ describe "when step is a String" do
+ describe "with self and stop as Integers" do
+ it "returns an Enumerator" do
+ @step.call(1, 5, "foo").should be_an_instance_of(Enumerator)
+ end
+ end
+
+ describe "with self and stop as Floats" do
+ it "returns an Enumerator" do
+ @step.call(1.1, 5.1, "foo").should be_an_instance_of(Enumerator)
+ end
+ end
+ end
+
+ describe "returned Enumerator" do
+ describe "size" do
+ describe "when step is a String" do
+ describe "with self and stop as Integers" do
+ it "raises an ArgumentError when step is a numeric representation" do
+ -> { @step.call(1, 5, "1").size }.should raise_error(ArgumentError)
+ -> { @step.call(1, 5, "0.1").size }.should raise_error(ArgumentError)
+ -> { @step.call(1, 5, "1/3").size }.should raise_error(ArgumentError)
+ end
+ it "raises an ArgumentError with step as an alphanumeric string" do
+ -> { @step.call(1, 5, "foo").size }.should raise_error(ArgumentError)
+ end
+ end
+
+ describe "with self and stop as Floats" do
+ it "raises an ArgumentError when step is a numeric representation" do
+ -> { @step.call(1.1, 5.1, "1").size }.should raise_error(ArgumentError)
+ -> { @step.call(1.1, 5.1, "0.1").size }.should raise_error(ArgumentError)
+ -> { @step.call(1.1, 5.1, "1/3").size }.should raise_error(ArgumentError)
+ end
+ it "raises an ArgumentError with step as an alphanumeric string" do
+ -> { @step.call(1.1, 5.1, "foo").size }.should raise_error(ArgumentError)
+ end
+ end
+ end
+
+ describe "when self, stop and step are Integers and step is positive" do
+ it "returns the difference between self and stop divided by the number of steps" do
+ @step.call(5, 10, 11).size.should == 1
+ @step.call(5, 10, 6).size.should == 1
+ @step.call(5, 10, 5).size.should == 2
+ @step.call(5, 10, 4).size.should == 2
+ @step.call(5, 10, 2).size.should == 3
+ @step.call(5, 10, 1).size.should == 6
+ @step.call(5, 10).size.should == 6
+ @step.call(10, 10, 1).size.should == 1
+ end
+
+ it "returns 0 if value > limit" do
+ @step.call(11, 10, 1).size.should == 0
+ end
+ end
+
+ describe "when self, stop and step are Integers and step is negative" do
+ it "returns the difference between self and stop divided by the number of steps" do
+ @step.call(10, 5, -11).size.should == 1
+ @step.call(10, 5, -6).size.should == 1
+ @step.call(10, 5, -5).size.should == 2
+ @step.call(10, 5, -4).size.should == 2
+ @step.call(10, 5, -2).size.should == 3
+ @step.call(10, 5, -1).size.should == 6
+ @step.call(10, 10, -1).size.should == 1
+ end
+
+ it "returns 0 if value < limit" do
+ @step.call(10, 11, -1).size.should == 0
+ end
+ end
+
+ describe "when self, stop or step is a Float" do
+ describe "and step is positive" do
+ it "returns the difference between self and stop divided by the number of steps" do
+ @step.call(5, 10, 11.0).size.should == 1
+ @step.call(5, 10, 6.0).size.should == 1
+ @step.call(5, 10, 5.0).size.should == 2
+ @step.call(5, 10, 4.0).size.should == 2
+ @step.call(5, 10, 2.0).size.should == 3
+ @step.call(5, 10, 0.5).size.should == 11
+ @step.call(5, 10, 1.0).size.should == 6
+ @step.call(5, 10.5).size.should == 6
+ @step.call(10, 10, 1.0).size.should == 1
+ end
+
+ it "returns 0 if value > limit" do
+ @step.call(10, 5.5).size.should == 0
+ @step.call(11, 10, 1.0).size.should == 0
+ @step.call(11, 10, 1.5).size.should == 0
+ @step.call(10, 5, infinity_value).size.should == 0
+ end
+
+ it "returns 1 if step is infinity_value" do
+ @step.call(5, 10, infinity_value).size.should == 1
+ end
+ end
+
+ describe "and step is negative" do
+ it "returns the difference between self and stop divided by the number of steps" do
+ @step.call(10, 5, -11.0).size.should == 1
+ @step.call(10, 5, -6.0).size.should == 1
+ @step.call(10, 5, -5.0).size.should == 2
+ @step.call(10, 5, -4.0).size.should == 2
+ @step.call(10, 5, -2.0).size.should == 3
+ @step.call(10, 5, -0.5).size.should == 11
+ @step.call(10, 5, -1.0).size.should == 6
+ @step.call(10, 10, -1.0).size.should == 1
+ end
+
+ it "returns 0 if value < limit" do
+ @step.call(10, 11, -1.0).size.should == 0
+ @step.call(10, 11, -1.5).size.should == 0
+ @step.call(5, 10, -infinity_value).size.should == 0
+ end
+
+ it "returns 1 if step is infinity_value" do
+ @step.call(10, 5, -infinity_value).size.should == 1
+ end
+ end
+ end
+
+ describe "when stop is not passed" do
+ it "returns infinity_value" do
+ @step.call(1).size.should == infinity_value
+ end
+ end
+
+ describe "when stop is nil" do
+ it "returns infinity_value" do
+ @step.call(1, nil, 5).size.should == infinity_value
+ end
+ end
+ end
+ end
+ end
+end
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