diff options
Diffstat (limited to 'spec/ruby/core/float/shared')
| -rw-r--r-- | spec/ruby/core/float/shared/abs.rb | 21 | ||||
| -rw-r--r-- | spec/ruby/core/float/shared/arg.rb | 36 | ||||
| -rw-r--r-- | spec/ruby/core/float/shared/arithmetic_exception_in_coerce.rb | 11 | ||||
| -rw-r--r-- | spec/ruby/core/float/shared/comparison_exception_in_coerce.rb | 11 | ||||
| -rw-r--r-- | spec/ruby/core/float/shared/equal.rb | 38 | ||||
| -rw-r--r-- | spec/ruby/core/float/shared/modulo.rb | 48 | ||||
| -rw-r--r-- | spec/ruby/core/float/shared/quo.rb | 59 | ||||
| -rw-r--r-- | spec/ruby/core/float/shared/to_i.rb | 14 | ||||
| -rw-r--r-- | spec/ruby/core/float/shared/to_s.rb | 308 |
9 files changed, 546 insertions, 0 deletions
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 |
