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37 lines
1.2 KiB
Ruby
37 lines
1.2 KiB
Ruby
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require File.expand_path('../../../spec_helper', __FILE__)
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require File.expand_path('../fixtures/coerce.rb', __FILE__)
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describe "Float#/" do
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it "returns self divided by other" do
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(5.75 / -2).should be_close(-2.875,TOLERANCE)
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(451.0 / 9.3).should be_close(48.494623655914,TOLERANCE)
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(91.1 / -0xffffffff).should be_close(-2.12108716418061e-08, TOLERANCE)
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end
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it "properly coerces objects" do
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(5.0 / FloatSpecs::CanCoerce.new(5)).should be_close(0, TOLERANCE)
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end
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it "returns +Infinity when dividing non-zero by zero of the same sign" do
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(1.0 / 0.0).should be_positive_infinity
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(-1.0 / -0.0).should be_positive_infinity
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end
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it "returns -Infinity when dividing non-zero by zero of opposite sign" do
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(-1.0 / 0.0).should be_negative_infinity
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(1.0 / -0.0).should be_negative_infinity
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end
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it "returns NaN when dividing zero by zero" do
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(0.0 / 0.0).should be_nan
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(-0.0 / 0.0).should be_nan
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(0.0 / -0.0).should be_nan
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(-0.0 / -0.0).should be_nan
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end
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it "raises a TypeError when given a non-Numeric" do
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lambda { 13.0 / "10" }.should raise_error(TypeError)
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lambda { 13.0 / :symbol }.should raise_error(TypeError)
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end
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end
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