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Diffstat (limited to 'spec/rubyspec/core/array/equal_value_spec.rb')
-rw-r--r-- | spec/rubyspec/core/array/equal_value_spec.rb | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/spec/rubyspec/core/array/equal_value_spec.rb b/spec/rubyspec/core/array/equal_value_spec.rb new file mode 100644 index 0000000000..d923d0e503 --- /dev/null +++ b/spec/rubyspec/core/array/equal_value_spec.rb @@ -0,0 +1,51 @@ +require File.expand_path('../../../spec_helper', __FILE__) +require File.expand_path('../fixtures/classes', __FILE__) +require File.expand_path('../shared/eql', __FILE__) + +describe "Array#==" do + it_behaves_like :array_eql, :== + + it "compares with an equivalent Array-like object using #to_ary" do + obj = mock('array-like') + obj.should_receive(:respond_to?).at_least(1).with(:to_ary).and_return(true) + obj.should_receive(:==).with([1]).at_least(1).and_return(true) + + ([1] == obj).should be_true + ([[1]] == [obj]).should be_true + ([[[1], 3], 2] == [[obj, 3], 2]).should be_true + + # recursive arrays + arr1 = [[1]] + arr1 << arr1 + arr2 = [obj] + arr2 << arr2 + (arr1 == arr2).should be_true + (arr2 == arr1).should be_true + end + + it "returns false if any corresponding elements are not #==" do + a = ["a", "b", "c"] + b = ["a", "b", "not equal value"] + a.should_not == b + + c = mock("c") + c.should_receive(:==).and_return(false) + ["a", "b", c].should_not == a + end + + it "returns true if corresponding elements are #==" do + [].should == [] + ["a", "c", 7].should == ["a", "c", 7] + + [1, 2, 3].should == [1.0, 2.0, 3.0] + + obj = mock('5') + obj.should_receive(:==).and_return(true) + [obj].should == [5] + end + + # As per bug #1720 + it "returns false for [NaN] == [NaN]" do + [nan_value].should_not == [nan_value] + end +end |