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30 lines
1.2 KiB
Ruby
30 lines
1.2 KiB
Ruby
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describe :bignum_modulo, shared: true do
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before :each do
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@bignum = bignum_value
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end
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it "returns the modulus obtained from dividing self by the given argument" do
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@bignum.send(@method, 5).should == 3
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@bignum.send(@method, -5).should == -2
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@bignum.send(@method, -100).should == -92
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@bignum.send(@method, 2.22).should be_close(0.780180180180252, TOLERANCE)
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@bignum.send(@method, bignum_value(10)).should == 9223372036854775808
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end
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it "raises a ZeroDivisionError when the given argument is 0" do
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lambda { @bignum.send(@method, 0) }.should raise_error(ZeroDivisionError)
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lambda { (-@bignum).send(@method, 0) }.should raise_error(ZeroDivisionError)
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end
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it "raises a ZeroDivisionError when the given argument is 0 and a Float" do
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lambda { @bignum.send(@method, 0.0) }.should raise_error(ZeroDivisionError)
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lambda { -@bignum.send(@method, 0.0) }.should raise_error(ZeroDivisionError)
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end
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it "raises a TypeError when given a non-Integer" do
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lambda { @bignum.send(@method, mock('10')) }.should raise_error(TypeError)
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lambda { @bignum.send(@method, "10") }.should raise_error(TypeError)
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lambda { @bignum.send(@method, :symbol) }.should raise_error(TypeError)
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end
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end
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