Function createTestChart

pkg/engine/render_test.go:568–590

createTestChart creates a minimal Helm chart in a temp directory with the given template content. Returns the chart root path.

(t *testing.T, chartName, templateName, templateContent string)

// createTestChart creates a minimal Helm chart in a temp directory with the
// given template content. Returns the chart root path.
func createTestChart(t *testing.T, chartName, templateName, templateContent string) string {
	t.Helper()
	root := t.TempDir()

	chartYAML := "apiVersion: v2\nname: " + chartName + "\ntype: application\nversion: 0.1.0\n"
	if err := os.WriteFile(filepath.Join(root, "Chart.yaml"), []byte(chartYAML), 0o644); err != nil {
		t.Fatalf("write Chart.yaml: %v", err)
	}

	if err := os.WriteFile(filepath.Join(root, "values.yaml"), []byte("{}\n"), 0o644); err != nil {
		t.Fatalf("write values.yaml: %v", err)
	}

	templatesDir := filepath.Join(root, "templates")
	if err := os.MkdirAll(templatesDir, 0o755); err != nil {
		t.Fatalf("mkdir templates: %v", err)
	}
	if err := os.WriteFile(filepath.Join(templatesDir, templateName), []byte(templateContent), 0o644); err != nil {
		t.Fatalf("write template: %v", err)
	}

	return root
}

// TestLookupOfflineProducesEmptyInterface is a regression test for the bug
// where `talm apply` rendered templates offline, causing lookup() to return