Test that equals_tester confirms reflexive and commutative equality (#3)
Test that equals_tester confirms reflexive and commutative equality (#3)

For example, these tests will fail if someone "optimizes" equals_tester to check a == b but not b == a.
quantumlib/Cirq,balopat/Cirq,quantumlib/Cirq,quantumlib/Cirq,balopat/Cirq,balopat/Cirq,quantumlib/Cirq,quantumlib/Cirq