How to capture an argument to a mock?

[efenderbosch-atg]

        LotFileEntity newFile = null
        1 * lotFileRepo.saveAll({ List<LotFileEntity> l ->
            l[1].guid == existingFile1.guid && l[2].guid == existingFile2.guid && l.size() == 3
        }) >> { List<LotFileEntity> l ->
            List<LotFileEntity> flattened = l.flatten()
            newFile = flattened[0]
            flattened
        }

When I run this I get:

No such property: newFile for class: org.spockframework.mock.runtime.MockInvocation
groovy.lang.MissingPropertyException: No such property: newFile for class: org.spockframework.mock.runtime.MockInvocation

[Vampire]

Is that in a then block?
If so, then it is moved by the compiler to before the according when block.
But the first line of your snippet stays in the then block and thus is not defined up where the interaction is placed now.
Wrap both expressions into an interaction { ... } block, then they are moved both together and it should work.

[efenderbosch-atg]

Thanks. I couldn't quite get it working like that, but declaring LotFileEntity newFile = null above the when block did work.