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48 lines
2 KiB
Ruby
48 lines
2 KiB
Ruby
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require_relative '../fixtures/classes'
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describe :complex_math_asin, shared: true do
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it "returns the arcsine of the argument" do
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@object.send(:asin, 1).should be_close(Math::PI/2, TOLERANCE)
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@object.send(:asin, 0).should be_close(0.0, TOLERANCE)
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@object.send(:asin, -1).should be_close(-Math::PI/2, TOLERANCE)
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@object.send(:asin, 0.25).should be_close(0.252680255142079, TOLERANCE)
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@object.send(:asin, 0.50).should be_close(0.523598775598299, TOLERANCE)
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@object.send(:asin, 0.75).should be_close(0.8480620789814816,TOLERANCE)
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end
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it "returns the arcsine for Complex numbers" do
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@object.send(:asin, Complex(3, 4)).should be_close(Complex(0.633983865639174, 2.30550903124347), TOLERANCE)
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end
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it "returns a Complex number when the argument is greater than 1.0" do
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@object.send(:asin, 1.0001).should be_close(Complex(1.5707963267949, -0.0141420177752494), TOLERANCE)
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end
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it "returns a Complex number when the argument is less than -1.0" do
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@object.send(:asin, -1.0001).should be_close(Complex(-1.5707963267949, 0.0141420177752494), TOLERANCE)
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end
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end
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describe :complex_math_asin_bang, shared: true do
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it "returns the arcsine of the argument" do
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@object.send(:asin!, 1).should be_close(Math::PI/2, TOLERANCE)
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@object.send(:asin!, 0).should be_close(0.0, TOLERANCE)
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@object.send(:asin!, -1).should be_close(-Math::PI/2, TOLERANCE)
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@object.send(:asin!, 0.25).should be_close(0.252680255142079, TOLERANCE)
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@object.send(:asin!, 0.50).should be_close(0.523598775598299, TOLERANCE)
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@object.send(:asin!, 0.75).should be_close(0.8480620789814816,TOLERANCE)
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end
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it "raises an Errno::EDOM if the argument is greater than 1.0" do
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-> { @object.send(:asin!, 1.0001) }.should raise_error( Errno::EDOM)
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end
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it "raises an Errno::EDOM if the argument is less than -1.0" do
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-> { @object.send(:asin!, -1.0001) }.should raise_error( Errno::EDOM)
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end
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it "raises a TypeError when passed a Complex number" do
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-> { @object.send(:asin!, Complex(4, 5)) }.should raise_error(TypeError)
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end
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end
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