What is the problem the feature request solves?
The Delta contrib's serialized Spark envelope and its DeltaPlanDataInjector are exercised only through the generic suites and end-to-end scan tests. Nothing pins the Delta-specific boundary during refactoring.
Describe the potential solution
Focused tests asserting operator slot 200, the distinct Spark and Kernel type URLs, and expected schema, projection and filter values in a representative common payload; provider tests for common and partition assembly, preservation of outer operator fields and children, rejection of another contrib's envelope, and an empty injected partition no longer qualifying for injection.
Additional context
Raised in the #5365 review (item 6), marked non-blocking there; filed as a follow-up.
What is the problem the feature request solves?
The Delta contrib's serialized Spark envelope and its
DeltaPlanDataInjectorare exercised only through the generic suites and end-to-end scan tests. Nothing pins the Delta-specific boundary during refactoring.Describe the potential solution
Focused tests asserting operator slot 200, the distinct Spark and Kernel type URLs, and expected schema, projection and filter values in a representative common payload; provider tests for common and partition assembly, preservation of outer operator fields and children, rejection of another contrib's envelope, and an empty injected partition no longer qualifying for injection.
Additional context
Raised in the #5365 review (item 6), marked non-blocking there; filed as a follow-up.