S011 Edge Cases

ID	Scenario	Expected Behavior
S011-EC-001	--config points to a file that does not exist or cannot be resolved	Print parity.yaml not found. Run from project root, place parity.yaml there, or use --config=path. Return exit code 1.
S011-EC-002	A discovered test process exits non-zero	Print Failed running test [{relative-test-path}], print any non-empty stderr/stdout from the runner, stop immediately, and return exit code 1.
S011-EC-003	The runner succeeds but its artifact is missing or contains no executable source coverage	Print a coverage-artifact error for the relative test path, remove staging output, preserve the previous complete report set, and return exit code 1.
S011-EC-004	A structure source directory does not exist	Skip that structure during discovery. Do not fail the command solely for the missing structure path.
S011-EC-005	The expected test file derived from a source file does not exist	Skip that expected test file. Do not add it to the execution set.
S011-EC-006	The target report directory already contains a valid older report set	Generate in a sibling staging directory and replace the older set only after every new report and manifest is complete.
S011-EC-007	test.coverage resolves to a directory path rather than a file path	Create the directory before runner execution and remove any previous directory artifact before the run.
S011-EC-008	No expected tests are discovered from any configured structure	Print No expected tests discovered from the configured structures. Return exit code 0.
S011-EC-009	A runner exceeds test.timeout or --timeout	Stop the process, print the relative test path and timeout, remove staging output, preserve the previous complete report set, and return exit code 1.
S011-EC-010	Report output resolves to a filesystem root, project root, home directory, .parity root, symlink, file, or unowned non-empty directory	Refuse the target before running any test or deleting any data.
S011-EC-011	A user already has a file named parity.test.yaml	Leave it untouched; delegated checking uses a unique temporary file that is always removed.
S011-EC-012	A manifest report path is absolute, contains .., or escapes reports/ through a symlink	Ignore the report without reading it.
S011-EC-013	An existing coverage target is outside .parity/ and has no Parity ownership marker	Refuse to replace it before running the test.
S011-EC-014	A report or coverage target has a symlink in an ancestor component	Refuse the target before creating, replacing, or deleting any artifact.
S011-EC-015	The coverage target overlaps the report output directory	Refuse the coverage target before running the test so the previous complete report set remains untouched.