Customizing Snapshots

Objects can’t allways be created and compared 1:1 with a snapshot. Some datatypes or datastructures are too complex to be compared or simply don’t make sense to be compared as a whole.
For this purpose Polaroider offers several possibilities to alter the way objects are mapped, formatted or analyzed.
All customization is done in the SnapshotOptions on a global scope or per match.

• Snapshot creation
• Mappers are used to define how objects are mapped to the snapshot
• Directives are used to customize the tokenized output per line
• Formatters define the string value of a type.
• Mocking data shows how changing values can be mocked as a constant to ensure snapshots don’t fail on values that always change