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Diffstat (limited to 'spec/rubyspec/shared/complex/equal_value.rb')
-rw-r--r-- | spec/rubyspec/shared/complex/equal_value.rb | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/spec/rubyspec/shared/complex/equal_value.rb b/spec/rubyspec/shared/complex/equal_value.rb new file mode 100644 index 0000000000..d944698878 --- /dev/null +++ b/spec/rubyspec/shared/complex/equal_value.rb @@ -0,0 +1,93 @@ +require File.expand_path('../../../spec_helper', __FILE__) + +describe :complex_equal_value, shared: true do + describe "with Complex" do + it "returns true when self and other have numerical equality" do + Complex(1, 2).should == Complex(1, 2) + Complex(3, 9).should == Complex(3, 9) + Complex(-3, -9).should == Complex(-3, -9) + + Complex(1, 2).should_not == Complex(3, 4) + Complex(3, 9).should_not == Complex(9, 3) + + Complex(1.0, 2.0).should == Complex(1, 2) + Complex(3.0, 9.0).should_not == Complex(9.0, 3.0) + + Complex(1.5, 2.5).should == Complex(1.5, 2.5) + Complex(1.5, 2.5).should == Complex(1.5, 2.5) + Complex(-1.5, 2.5).should == Complex(-1.5, 2.5) + + Complex(1.5, 2.5).should_not == Complex(2.5, 1.5) + Complex(3.75, 2.5).should_not == Complex(1.5, 2.5) + + Complex(bignum_value, 2.5).should == Complex(bignum_value, 2.5) + Complex(3.75, bignum_value).should_not == Complex(1.5, bignum_value) + + Complex(nan_value).should_not == Complex(nan_value) + end + end + + describe "with Numeric" do + it "returns true when self's imaginary part is 0 and the real part and other have numerical equality" do + Complex(3, 0).should == 3 + Complex(-3, 0).should == -3 + + Complex(3.5, 0).should == 3.5 + Complex(-3.5, 0).should == -3.5 + + Complex(bignum_value, 0).should == bignum_value + Complex(-bignum_value, 0).should == -bignum_value + + Complex(3.0, 0).should == 3 + Complex(-3.0, 0).should == -3 + + Complex(3, 0).should_not == 4 + Complex(-3, 0).should_not == -4 + + Complex(3.5, 0).should_not == -4.5 + Complex(-3.5, 0).should_not == 2.5 + + Complex(bignum_value, 0).should_not == bignum_value(10) + Complex(-bignum_value, 0).should_not == -bignum_value(20) + end + end + + describe "with Object" do + # Fixnum#==, Float#== and Bignum#== only return booleans - Bug? + it "calls other#== with self" do + value = Complex(3, 0) + + obj = mock("Object") + obj.should_receive(:==).with(value).and_return(:expected) + + (value == obj).should_not be_false + end + end + + describe "with a Numeric which responds to #real? with true" do + before do + @other = mock_numeric('other') + @other.should_receive(:real?).any_number_of_times.and_return(true) + end + + it "returns real == other when the imaginary part is zero" do + real = mock_numeric('real') + real.should_receive(:==).with(@other).and_return(true) + (Complex(real, 0) == @other).should be_true + end + + it "returns false when when the imaginary part is not zero" do + (Complex(3, 1) == @other).should be_false + end + end + + describe "with a Numeric which responds to #real? with false" do + it "returns other == self" do + complex = Complex(3, 0) + other = mock_numeric('other') + other.should_receive(:real?).any_number_of_times.and_return(false) + other.should_receive(:==).with(complex).and_return(true) + (complex == other).should be_true + end + end +end |