IsConflicting returns true if the provided error indicates a conflict exists between the original changes and the applied changes.

IsPreconditionFailed returns true if the provided error indicates a Delta precondition did not succeed.

NewDelta accepts two JSON or YAML documents and calculates the difference between them.

RequireKeyUnchanged creates a precondition function that fails if the provided key is present in the diff (indicating its value has changed).

RequireKeyUnchanged creates a precondition function that fails if the metadata.key is present in the diff (indicating its value has changed).

TestPreconditions test if preconditions hold given the edit.

Delta represents a change between two JSON documents.

PreconditionFunc is a test to verify that an incompatible change has occurred before an Apply can be successful.