1 files changed, 29 insertions, 0 deletions
diff --git a/internal/behavior/yml_test.go b/internal/behavior/yml_test.go
new file mode 100644
index 0000000..9452e9e
--- /dev/null
+++ b/internal/behavior/yml_test.go
@@ -0,0 +1,29 @@
+package behavior
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+)
+
+// Regression: WalkYAMLDir only matched .yaml, so a .yml trigger file loaded
+// and fired at runtime while every validation pass ignored it.
+func TestWalkYAMLDirIncludesYml(t *testing.T) {
+	dir := t.TempDir()
+	if err := os.WriteFile(filepath.Join(dir, "a.yaml"), []byte("x: 1"), 0644); err != nil {
+		t.Fatal(err)
+	}
+	if err := os.WriteFile(filepath.Join(dir, "b.yml"), []byte("x: 2"), 0644); err != nil {
+		t.Fatal(err)
+	}
+	ids := map[string]bool{}
+	if err := WalkYAMLDir(dir, func(path, id string, data []byte) error {
+		ids[id] = true
+		return nil
+	}); err != nil {
+		t.Fatal(err)
+	}
+	if !ids["a"] || !ids["b"] {
+		t.Fatalf("WalkYAMLDir ids = %v, want both a and b", ids)
+	}
+}