diff options
Diffstat (limited to 'spec/rubyspec/core/complex/rationalize_spec.rb')
-rw-r--r-- | spec/rubyspec/core/complex/rationalize_spec.rb | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/spec/rubyspec/core/complex/rationalize_spec.rb b/spec/rubyspec/core/complex/rationalize_spec.rb new file mode 100644 index 0000000000..2dd1e9b122 --- /dev/null +++ b/spec/rubyspec/core/complex/rationalize_spec.rb @@ -0,0 +1,29 @@ +describe "Complex#rationalize" do + it "raises RangeError if self has non-zero imaginary part" do + lambda { Complex(1,5).rationalize }.should raise_error(RangeError) + end + + it "raises RangeError if self has 0.0 imaginary part" do + lambda { Complex(1,0.0).rationalize }.should raise_error(RangeError) + end + + it "returns a Rational if self has zero imaginary part" do + Complex(1,0).rationalize.should == Rational(1,1) + Complex(2<<63+5).rationalize.should == Rational(2<<63+5,1) + end + + it "sends #rationalize to the real part" do + real = mock_numeric('real') + real.should_receive(:rationalize).with(0.1).and_return(:result) + Complex(real, 0).rationalize(0.1).should == :result + end + + it "ignores a single argument" do + Complex(1,0).rationalize(0.1).should == Rational(1,1) + end + + it "raises ArgumentError when passed more than one argument" do + lambda { Complex(1,0).rationalize(0.1, 0.1) }.should raise_error(ArgumentError) + lambda { Complex(1,0).rationalize(0.1, 0.1, 2) }.should raise_error(ArgumentError) + end +end |