MatchedBy doesn't seem to work?

[decibel]

... or maybe I'm just doing it wrong...

    m.On("DescribeDBInstances",
            //mock.Anything,
            //mock.AnythingOfType("*rds.DescribeDBInstancesInput"),
            /* TODO: Not sure how to make this work...
            */
            // Only run mock if input is a test UUID
            mock.MatchedBy(
                func(input *rds.DescribeDBInstancesInput) bool {
                    return input.DBInstanceIdentifier == aws.String("db-test UUID")
                },
            ),
        ).Return(mockResultFn, nil).Once()

is producing this:

mock: Unexpected Method Call
-----------------------------
DescribeDBInstances(*rds.DescribeDBInstancesInput)
                                0: {
  DBInstanceIdentifier: "db-test UUID"
}

The closest call I have is:

DescribeDBInstances(mock.argumentMatcher)
                                0: mock.argumentMatcher{fn:reflect.Value{typ:(*reflect.rtype)(0x1498920), ptr:(unsafe.Pointer)(0x156dca0), flag:0x13}}

The S3 example at https://github.com/vektra/mockery leads me to believe that this should work, no?

[Willyham]

You're comparing pointers when you want to be comparing values. Try:

 return *input.DBInstanceIdentifier == "db-test UUID"