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1d15d5f080
* Other ruby implementations use the spec/ruby directory. [Misc #13792] [ruby-core:82287] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59979 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
59 lines
2.3 KiB
Ruby
59 lines
2.3 KiB
Ruby
require 'bigdecimal'
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describe :bigdecimal_quo, shared: true do
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before :each do
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@one = BigDecimal("1")
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@zero = BigDecimal("0")
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@zero_plus = BigDecimal("+0")
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@zero_minus = BigDecimal("-0")
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@two = BigDecimal("2")
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@three = BigDecimal("3")
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@eleven = BigDecimal("11")
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@nan = BigDecimal("NaN")
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@infinity = BigDecimal("Infinity")
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@infinity_minus = BigDecimal("-Infinity")
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@one_minus = BigDecimal("-1")
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@frac_1 = BigDecimal("1E-99999")
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@frac_2 = BigDecimal("0.9E-99999")
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end
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it "returns a / b" do
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@two.send(@method, @one, *@object).should == @two
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@one.send(@method, @two, *@object).should == BigDecimal("0.5")
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@eleven.send(@method, @three, *@object).should be_close(@three + (@two / @three), TOLERANCE)
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@one.send(@method, @one_minus, *@object).should == @one_minus
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@one_minus.send(@method, @one_minus, *@object).should == @one
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@frac_2.send(@method, @frac_1, *@object).should == BigDecimal("0.9")
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@frac_1.send(@method, @frac_1, *@object).should == @one
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@one.send(@method, BigDecimal('-2E5555'), *@object).should == BigDecimal('-0.5E-5555')
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@one.send(@method, BigDecimal('2E-5555'), *@object).should == BigDecimal('0.5E5555')
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end
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it "returns 0 if divided by Infinity" do
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@zero.send(@method, @infinity, *@object).should == 0
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@frac_2.send(@method, @infinity, *@object).should == 0
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end
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it "returns (+|-) Infinity if (+|-) Infinity divided by one" do
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@infinity_minus.send(@method, @one, *@object).should == @infinity_minus
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@infinity.send(@method, @one, *@object).should == @infinity
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@infinity_minus.send(@method, @one_minus, *@object).should == @infinity
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end
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it "returns NaN if Infinity / ((+|-) Infinity)" do
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@infinity.send(@method, @infinity_minus, *@object).nan?.should == true
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@infinity_minus.send(@method, @infinity, *@object).nan?.should == true
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end
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it "returns (+|-) Infinity if divided by zero" do
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@one.send(@method, @zero, *@object).should == @infinity
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@one.send(@method, @zero_plus, *@object).should == @infinity
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@one.send(@method, @zero_minus, *@object).should == @infinity_minus
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end
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it "returns NaN if zero is divided by zero" do
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@zero.send(@method, @zero, *@object).nan?.should == true
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@zero_minus.send(@method, @zero_plus, *@object).nan?.should == true
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@zero_plus.send(@method, @zero_minus, *@object).nan?.should == true
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end
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end
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