require_relative '../../spec_helper' 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