wip

src/Support/Coverage.php

@@ -88,6 +88,12 @@ final class Coverage
             throw ShouldNotHappen::fromMessage(sprintf('Coverage not found in path: %s.', $reportPath));
         }
 
+        // If TIA's marker is present, this run executed only the affected
+        // tests. Merge their fresh coverage slice into the cached full-run
+        // snapshot (stored by the previous `--tia --coverage` pass) so the
+        // report reflects the entire suite, not just what re-ran.
+        \Pest\Plugins\Tia\CoverageMerger::applyIfMarked($reportPath);
+
         /** @var CodeCoverage $codeCoverage */
         $codeCoverage = require $reportPath;
         unlink($reportPath);