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39 lines
1 KiB
Ruby
39 lines
1 KiB
Ruby
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describe :hash_key_p, shared: true do
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it "returns true if argument is a key" do
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h = { a: 1, b: 2, c: 3, 4 => 0 }
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h.send(@method, :a).should == true
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h.send(@method, :b).should == true
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h.send(@method, 2).should == false
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h.send(@method, 4).should == true
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not_supported_on :opal do
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h.send(@method, 'b').should == false
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h.send(@method, 4.0).should == false
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end
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end
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it "returns true if the key's matching value was nil" do
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{ xyz: nil }.send(@method, :xyz).should == true
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end
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it "returns true if the key's matching value was false" do
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{ xyz: false }.send(@method, :xyz).should == true
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end
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it "returns true if the key is nil" do
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{ nil => 'b' }.send(@method, nil).should == true
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{ nil => nil }.send(@method, nil).should == true
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end
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it "compares keys with the same #hash value via #eql?" do
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x = mock('x')
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x.stub!(:hash).and_return(42)
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y = mock('y')
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y.stub!(:hash).and_return(42)
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y.should_receive(:eql?).and_return(false)
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{ x => nil }.send(@method, y).should == false
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end
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end
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