Add overlay migration regression coverage

2026-09-23 18:31:20 +00:00
parent ae91f57bbe
commit 73ce6e9e31
8 changed files with 90 additions and 137 deletions
--- a/internal/engine/overlay.go
+++ b/internal/engine/overlay.go
@@ -21,7 +21,7 @@ func overlayDocuments(base *composedDocument, overlay *document.Node) (*composed
 	if base == nil || base.root == nil || base.root.Kind != document.Mapping || overlay == nil || overlay.Kind != document.Mapping {
 		return nil, []Diagnostic{{
 			Code: CodeOverlayInvalid, Severity: SeverityError,
-			Message: "overlay overlay requires mapping document roots",
+			Message: "overlay requires mapping document roots",
 		}}
 	}
 	result := cloneComposedDocument(base)