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* 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
49 lines
1.5 KiB
Ruby
49 lines
1.5 KiB
Ruby
require File.expand_path('../../../spec_helper', __FILE__)
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describe "Fixnum#fdiv" do
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it "performs floating-point division between self and a Fixnum" do
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8.fdiv(7).should be_close(1.14285714285714, TOLERANCE)
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end
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it "performs floating-point division between self and a Bignum" do
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8.fdiv(bignum_value).should be_close(8.673617379884035e-19, TOLERANCE)
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end
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it "performs floating-point division between self and a Float" do
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8.fdiv(9.0).should be_close(0.888888888888889, TOLERANCE)
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end
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it "returns NaN when the argument is NaN" do
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-1.fdiv(nan_value).nan?.should be_true
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1.fdiv(nan_value).nan?.should be_true
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end
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it "returns Infinity when the argument is 0" do
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1.fdiv(0).infinite?.should == 1
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end
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it "returns -Infinity when the argument is 0 and self is negative" do
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-1.fdiv(0).infinite?.should == -1
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end
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it "returns Infinity when the argument is 0.0" do
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1.fdiv(0.0).infinite?.should == 1
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end
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it "returns -Infinity when the argument is 0.0 and self is negative" do
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-1.fdiv(0.0).infinite?.should == -1
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end
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it "raises a TypeError when argument isn't numeric" do
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lambda { 1.fdiv(mock('non-numeric')) }.should raise_error(TypeError)
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end
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it "raises an ArgumentError when passed multiple arguments" do
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lambda { 1.fdiv(6,0.2) }.should raise_error(ArgumentError)
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end
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it "follows the coercion protocol" do
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(obj = mock('10')).should_receive(:coerce).with(1).and_return([1, 10])
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1.fdiv(obj).should == 0.1
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end
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end
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