small fix, don't worry about it

app/backend/internal/api/templates_test.go

@@ -0,0 +1,73 @@
+package api
+
+import "testing"
+
+func TestNormalizeTemplateServiceType(t *testing.T) {
+	valid := []string{"web", "worker", "database", "cron"}
+	for _, value := range valid {
+		got, err := normalizeTemplateServiceType(value)
+		if err != nil {
+			t.Fatalf("normalizeTemplateServiceType(%q) returned error: %v", value, err)
+		}
+		if got != value {
+			t.Fatalf("normalizeTemplateServiceType(%q) = %q, want %q", value, got, value)
+		}
+	}
+
+	_, err := normalizeTemplateServiceType("unsupported")
+	if err == nil {
+		t.Fatalf("expected unsupported template type to return error")
+	}
+}
+
+func TestMergeTemplateVariables(t *testing.T) {
+	env, secretKeys, missing := mergeTemplateVariables(
+		map[string]string{
+			"DEFAULT_ONE": "a",
+			"DEFAULT_TWO": "b",
+		},
+		[]TemplateVariable{
+			{
+				Key:      "REQ",
+				Default:  "",
+				Required: true,
+				Secret:   true,
+			},
+			{
+				Key:      "OPTIONAL",
+				Default:  "fallback",
+				Required: false,
+				Secret:   false,
+			},
+		},
+		map[string]string{
+			"REQ":       "provided",
+			"EXTRA_KEY": "custom",
+		},
+	)
+
+	if len(missing) != 0 {
+		t.Fatalf("expected no missing required vars, got %v", missing)
+	}
+	if env["REQ"] != "provided" {
+		t.Fatalf("expected REQ=provided, got %q", env["REQ"])
+	}
+	if env["OPTIONAL"] != "fallback" {
+		t.Fatalf("expected OPTIONAL=fallback, got %q", env["OPTIONAL"])
+	}
+	if env["EXTRA_KEY"] != "custom" {
+		t.Fatalf("expected EXTRA_KEY=custom, got %q", env["EXTRA_KEY"])
+	}
+	if !secretKeys["REQ"] {
+		t.Fatalf("expected REQ to be marked secret")
+	}
+}
+
+func TestResolveTemplateRuntimeImage(t *testing.T) {
+	if got := resolveTemplateRuntimeImage("dragonfly"); got == "dragonfly" || got == "" {
+		t.Fatalf("expected dragonfly runtime to map to a concrete image, got %q", got)
+	}
+	if got := resolveTemplateRuntimeImage("custom-runtime"); got != "custom-runtime" {
+		t.Fatalf("expected unknown runtime passthrough, got %q", got)
+	}
+}