GH-103804: Add test for dis.disco

[jkchandalia]

PR to test dis.disco

Fixes #103804

• Issue: Add missing tests to the dis module #103804

[jkchandalia]

FYI @nanjekyejoannah @iritkatriel

[gaogaotiantian]

dis.disco is an alias of dis.disassemble for backward compatibility. Your test basically testing that those two functions will generate the same result. You might as well test self.assertIs(dis.disco, dis.disassemble) to make sure they are the same function - this is a stronger test than testing their behavior and at this point I believe that's the expected behavior(being an alias instead of having the same functionality)

[iritkatriel]

If we decide to deprecate disco then we will turn it into a function that issues a deprecation warning and calls disassemble. Then the test that they are the same function would no longer be correct.

[gaogaotiantian]

If we decide to deprecate disco then we will turn it into a function that issues a deprecation warning and calls disassemble. Then the test that they are the same function would no longer be correct.

Hmm, that makes sense as dis.disco will output warning on stderr.

[iritkatriel]

We could, instead of adding this test, add a check in do_disassembly_test that disco gives the expected output as well. That would cover more cases.

[jkchandalia]

@iritkatriel I've updated the PR to reflect your suggestion. Please let me know if you have any other suggestions.