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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
44 lines
1.4 KiB
Ruby
44 lines
1.4 KiB
Ruby
require File.expand_path('../../../spec_helper', __FILE__)
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describe "Fixnum#div with a Fixnum" do
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it "returns self divided by the given argument as an Integer" do
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2.div(2).should == 1
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1.div(2).should == 0
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5.div(2).should == 2
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end
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end
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describe "Fixnum#div" do
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it "rounds towards -inf" do
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8192.div(10).should == 819
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8192.div(-10).should == -820
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(-8192).div(10).should == -820
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(-8192).div(-10).should == 819
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end
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it "coerces self and the given argument to Floats and returns self divided by other as Fixnum" do
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1.div(0.2).should == 5
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1.div(0.16).should == 6
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1.div(0.169).should == 5
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-1.div(50.4).should == -1
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1.div(bignum_value).should == 0
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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 { 0.div(0.0) }.should raise_error(ZeroDivisionError)
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lambda { 10.div(0.0) }.should raise_error(ZeroDivisionError)
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lambda { -10.div(0.0) }.should raise_error(ZeroDivisionError)
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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 { 13.div(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 {
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(obj = mock('10')).should_receive(:to_int).any_number_of_times.and_return(10)
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13.div(obj)
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}.should raise_error(TypeError)
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lambda { 5.div("2") }.should raise_error(TypeError)
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end
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end
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