Complete interface contract remediation

facade_diagnostic_order_test.go

@@ -47,8 +47,18 @@ func TestFacadeCompositionConflictKeepsClaimantOrder(t *testing.T) {
 	}
 
 	pathsByID := make(map[string]string)
+	var acquisitionOrder []string
 	for _, source := range loadError.Sources() {
 		pathsByID[source.ID] = source.Path
+		for _, name := range []string{"z.yml", "b.yml", "c.yml"} {
+			if source.Path == name || strings.HasSuffix(source.Path, "/"+name) {
+				acquisitionOrder = append(acquisitionOrder, strings.TrimSuffix(name, ".yml"))
+				break
+			}
+		}
+	}
+	if strings.Join(acquisitionOrder, ",") != "z,b,c" {
+		t.Fatalf("claimant acquisition order = %v, want z,b,c", acquisitionOrder)
 	}
 	claimant := func(location configkit.Location) string {
 		for _, name := range []string{"b.yml", "c.yml", "z.yml"} {