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* For easier modifications of ruby/spec by MRI developers. * .gitignore: track changes under spec. * spec/mspec, spec/rubyspec: add in-tree mspec and ruby/spec. These files can therefore be updated like any other file in MRI. Instructions are provided in spec/README. [Feature #13156] [ruby-core:79246] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58595 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
48 lines
1.3 KiB
Ruby
48 lines
1.3 KiB
Ruby
require File.expand_path('../../../spec_helper', __FILE__)
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require 'bigdecimal'
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describe "BigDecimal#frac" do
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before :each do
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@zero = BigDecimal("0")
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@mixed = BigDecimal("1.23456789")
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@pos_int = BigDecimal("2E5555")
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@neg_int = BigDecimal("-2E5555")
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@pos_frac = BigDecimal("2E-9999")
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@neg_frac = BigDecimal("-2E-9999")
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@infinity = BigDecimal("Infinity")
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@infinity_neg = BigDecimal("-Infinity")
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@nan = BigDecimal("NaN")
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@zero_pos = BigDecimal("+0")
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@zero_neg = BigDecimal("-0")
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end
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it "returns a BigDecimal" do
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@pos_int.frac.kind_of?(BigDecimal).should == true
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@neg_int.frac.kind_of?(BigDecimal).should == true
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@pos_frac.kind_of?(BigDecimal).should == true
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@neg_frac.kind_of?(BigDecimal).should == true
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end
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it "returns the fractional part of the absolute value" do
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@mixed.frac.should == BigDecimal("0.23456789")
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@pos_frac.frac.should == @pos_frac
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@neg_frac.frac.should == @neg_frac
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end
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it "returns 0 if the value is 0" do
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@zero.frac.should == @zero
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end
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it "returns 0 if the value is an integer" do
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@pos_int.frac.should == @zero
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@neg_int.frac.should == @zero
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end
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it "correctly handles special values" do
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@infinity.frac.should == @infinity
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@infinity_neg.frac.should == @infinity_neg
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@nan.frac.nan?.should == true
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end
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end
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