Fix TestParseSubscriptionConfig to work with vendor mode

Author: jianzhangbjz

hack/tools/schema-generator/main_test.go

@@ -12,13 +12,30 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
-// getModulePath returns the directory path of the specified Go module from go mod cache
+// getModulePath returns the directory path of the specified Go module.
+// It first checks the vendor directory (for vendor mode builds like in OpenShift CI),
+// then falls back to go mod cache.
 func getModulePath(t *testing.T, modulePath string) string {
 	t.Helper()
-	// Use -mod=readonly to bypass vendor directory and get the module cache path
+
+	// First, check if the module exists in the vendor directory
+	// This is needed for vendor mode builds (e.g., OpenShift CI)
+	vendorPath := filepath.Join("vendor", modulePath)
+	if info, err := os.Stat(vendorPath); err == nil && info.IsDir() {
+		return vendorPath
+	}
+
+	// Also check relative to the repository root (when running from subdirectory)
+	// The test runs from hack/tools/schema-generator, so we need to go up 3 levels
+	rootVendorPath := filepath.Join("..", "..", "..", "vendor", modulePath)
+	if info, err := os.Stat(rootVendorPath); err == nil && info.IsDir() {
+		return rootVendorPath
+	}
+
+	// Fall back to go mod cache
 	cmd := exec.Command("go", "list", "-mod=readonly", "-m", "-f", "{{.Dir}}", modulePath)
 	out, err := cmd.Output()
-	require.NoError(t, err, "failed to find module %s", modulePath)
+	require.NoError(t, err, "failed to find module %s in vendor directory or go mod cache", modulePath)
 	return strings.TrimSpace(string(out))
 }