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Diffstat (limited to 'spec/ruby/core/fixnum/divmod_spec.rb')
-rw-r--r-- | spec/ruby/core/fixnum/divmod_spec.rb | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/spec/ruby/core/fixnum/divmod_spec.rb b/spec/ruby/core/fixnum/divmod_spec.rb new file mode 100644 index 0000000000..21c9afe315 --- /dev/null +++ b/spec/ruby/core/fixnum/divmod_spec.rb @@ -0,0 +1,35 @@ +require File.expand_path('../../../spec_helper', __FILE__) + +describe "Fixnum#divmod" do + it "returns an Array containing quotient and modulus obtained from dividing self by the given argument" do + 13.divmod(4).should == [3, 1] + 4.divmod(13).should == [0, 4] + + 13.divmod(4.0).should == [3, 1] + 4.divmod(13.0).should == [0, 4] + + 1.divmod(2.0).should == [0, 1.0] + 200.divmod(bignum_value).should == [0, 200] + end + + it "raises a ZeroDivisionError when the given argument is 0" do + lambda { 13.divmod(0) }.should raise_error(ZeroDivisionError) + lambda { 0.divmod(0) }.should raise_error(ZeroDivisionError) + lambda { -10.divmod(0) }.should raise_error(ZeroDivisionError) + end + + it "raises a ZeroDivisionError when the given argument is 0 and a Float" do + lambda { 0.divmod(0.0) }.should raise_error(ZeroDivisionError) + lambda { 10.divmod(0.0) }.should raise_error(ZeroDivisionError) + lambda { -10.divmod(0.0) }.should raise_error(ZeroDivisionError) + end + + it "raises a TypeError when given a non-Integer" do + lambda { + (obj = mock('10')).should_receive(:to_int).any_number_of_times.and_return(10) + 13.divmod(obj) + }.should raise_error(TypeError) + lambda { 13.divmod("10") }.should raise_error(TypeError) + lambda { 13.divmod(:symbol) }.should raise_error(TypeError) + end +end |