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inline-snapshot is a new tool that I am trying out for python testing. It
takes snapshots of your outputs and places them inline with the test.
Here is the most basic starter.
import inline_snapshot def test_one(): assert 1 == snapshot()
Now when I run pytest my tests will fail because my assert has no value, but if I
run pytest --inline-snapshot=create it will fill out my snapshot values and the
file will then look like this.
import inline_snapshot def test_one(): assert 1 == snapshot(1)
It also works with pydantic models.
class MyModel(BaseModel): name: str age: int nickname: str | None = None def test_my_model_instance(): assert MyModel(name="Waylon", age=1) == snapshot(MyModel(name="Waylon", age=1)) def test_my_model_fields(): me = MyModel(name="Waylon", age=1, nickname='Waylon') assert me.name == snapshot("Waylon") assert me.age == snapshot(1) assert me.nickname == snapshot("Waylon")