PyCharm diff comparison failure doesn't work with custom classes

[lindenwells]

Describe the bug

When comparing a failed snapshot test on an object without a custom __repr__ (i.e. relies on syrupy's serializer), PyCharm incorrectly displays the actual output as the default __repr__ (e.g. ...Mansion object at 0xBEEF2020) instead of what syrupy serialises it to (e.g. Mansion(rooms=[Room(...)])).

This might be a PyCharm bug, or Syrupy or somehow both. Just thought I'd make this issue as it tripped me up at work for over an hour and I imagine a fair few people use PyCharm and syrupy together.

To reproduce

1. checkout this repo I made
2. create a virtualenv within and pip install syrupy==3.0.2
3. find the singular test within the run configurations and notice that it fails.
4. in the failed test output, scroll to the clickable '<Click to see difference>' text:
5. click that text and you should get a Comparison Failure interface like this:

Expected behavior

This is roughly what I should see in the Comparison Failure window.

I know this is wrong because when I run pytest --snapshot-update, it updates the snapshot like this.

Screenshots
added throughout where appropriate

Environment:

• OS: Windows 11 Pro 21H2
• Syrupy Version: 3.0.2
• Python Version: 3.9.13
• PyCharm Version: 2022.3 (Community Edition), Build #PC-223.7571.203, built on December 1, 2022, Runtime version: 17.0.5+1-b653.14 amd64, VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.

Additional context

This is similar to #572 but not the same.

[Crown0815]

Similar issue here with basic strings:

Create snapshot from:

def test_test(snapshot):
    test = """Hello to
the world"""
    assert test == snapshot

pytest --snapshot-update

Modify the string (e.g., add ! to world)

def test_test(snapshot):
    test = """Hello to
the world!"""                   # Added the `!`
    assert test == snapshot

Yields non-helpful diff view: