function setDefaultSnapshotSerializers | Node.js node:test module | Bun

This function is used to customize the default serialization mechanism used by the test runner.

By default, the test runner performs serialization by calling JSON.stringify(value, null, 2) on the provided value. JSON.stringify() does have limitations regarding circular structures and supported data types. If a more robust serialization mechanism is required, this function should be used to specify a list of custom serializers.

Serializers are called in order, with the output of the previous serializer passed as input to the next. The final result must be a string value.

An array of synchronous functions used as the default serializers for snapshot tests.