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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63293 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
61 lines
2.3 KiB
Ruby
61 lines
2.3 KiB
Ruby
require 'bigdecimal'
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describe :bigdecimal_eql, shared: true do
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before :each do
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@bg6543_21 = BigDecimal("6543.21")
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@bg5667_19 = BigDecimal("5667.19")
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@a = BigDecimal("1.0000000000000000000000000000000000000000005")
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@b = BigDecimal("1.00000000000000000000000000000000000000000005")
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@bigint = BigDecimal("1000.0")
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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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end
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it "tests for equality" do
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@bg6543_21.send(@method, @bg6543_21).should == true
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@a.send(@method, @a).should == true
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@a.send(@method, @b).should == false
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@bg6543_21.send(@method, @a).should == false
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@bigint.send(@method, 1000).should == true
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end
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it "returns false for NaN as it is never equal to any number" do
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@nan.send(@method, @nan).should == false
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@a.send(@method, @nan).should == false
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@nan.send(@method, @a).should == false
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@nan.send(@method, @infinity).should == false
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@nan.send(@method, @infinity_minus).should == false
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@infinity.send(@method, @nan).should == false
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@infinity_minus.send(@method, @nan).should == false
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end
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it "returns true for infinity values with the same sign" do
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@infinity.send(@method, @infinity).should == true
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@infinity.send(@method, BigDecimal("Infinity")).should == true
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BigDecimal("Infinity").send(@method, @infinity).should == true
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@infinity_minus.send(@method, @infinity_minus).should == true
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@infinity_minus.send(@method, BigDecimal("-Infinity")).should == true
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BigDecimal("-Infinity").send(@method, @infinity_minus).should == true
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end
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it "returns false for infinity values with different signs" do
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@infinity.send(@method, @infinity_minus).should == false
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@infinity_minus.send(@method, @infinity).should == false
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end
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it "returns false when infinite value compared to finite one" do
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@infinity.send(@method, @a).should == false
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@infinity_minus.send(@method, @a).should == false
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@a.send(@method, @infinity).should == false
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@a.send(@method, @infinity_minus).should == false
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end
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it "returns false when compared objects that can not be coerced into BigDecimal" do
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@infinity.send(@method, nil).should == false
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@bigint.send(@method, nil).should == false
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@nan.send(@method, nil).should == false
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end
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end
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