diff options
Diffstat (limited to 'spec/ruby/shared/rational/modulo.rb')
-rw-r--r-- | spec/ruby/shared/rational/modulo.rb | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/spec/ruby/shared/rational/modulo.rb b/spec/ruby/shared/rational/modulo.rb new file mode 100644 index 0000000000..ca69650f20 --- /dev/null +++ b/spec/ruby/shared/rational/modulo.rb @@ -0,0 +1,43 @@ +require File.expand_path('../../../spec_helper', __FILE__) + +describe :rational_modulo, shared: true do + it "returns the remainder when this value is divided by other" do + Rational(2, 3).send(@method, Rational(2, 3)).should == Rational(0, 1) + Rational(4, 3).send(@method, Rational(2, 3)).should == Rational(0, 1) + Rational(2, -3).send(@method, Rational(-2, 3)).should == Rational(0, 1) + Rational(0, -1).send(@method, -1).should == Rational(0, 1) + + Rational(7, 4).send(@method, Rational(1, 2)).should == Rational(1, 4) + Rational(7, 4).send(@method, 1).should == Rational(3, 4) + Rational(7, 4).send(@method, Rational(1, 7)).should == Rational(1, 28) + + Rational(3, 4).send(@method, -1).should == Rational(-1, 4) + Rational(1, -5).send(@method, -1).should == Rational(-1, 5) + end + + it "returns a Float value when the argument is Float" do + Rational(7, 4).send(@method, 1.0).should be_kind_of(Float) + Rational(7, 4).send(@method, 1.0).should == 0.75 + Rational(7, 4).send(@method, 0.26).should be_close(0.19, 0.0001) + end + + it "raises ZeroDivisionError on zero denominator" do + lambda { + Rational(3, 5).send(@method, Rational(0, 1)) + }.should raise_error(ZeroDivisionError) + + lambda { + Rational(0, 1).send(@method, Rational(0, 1)) + }.should raise_error(ZeroDivisionError) + + lambda { + Rational(3, 5).send(@method, 0) + }.should raise_error(ZeroDivisionError) + end + + it "raises a ZeroDivisionError when the argument is 0.0" do + lambda { + Rational(3, 5).send(@method, 0.0) + }.should raise_error(ZeroDivisionError) + end +end |