test: add watch pattern exclusion test for Caddy configuration

Add test case for worker watch configuration with exclude patterns.
Verifies that exclude patterns (prefixed with !) are correctly parsed
and stored alongside include patterns in the watch configuration.

Author: jordikroon

caddy/config_test.go

@@ -220,3 +220,39 @@ func TestModuleWorkerWithCustomName(t *testing.T) {
 	require.Equal(t, "m#custom-worker-name", module.Workers[0].Name, "Worker should have the custom name, prefixed with m#")
 	require.Equal(t, "m#custom-worker-name", app.Workers[0].Name, "Worker should have the custom name, prefixed with m#")
 }
+
+func TestWorkerWatchAllowsExcludePatterns(t *testing.T) {
+	// Create a test configuration with an exclude watch pattern
+	configWithExcludeWatch := `
+	{
+		php {
+			worker {
+				file ../testdata/worker-with-env.php
+				num 1
+				watch
+				watch !./vendor/**
+				watch ./src/**/*.php
+			}
+		}
+	}`
+
+	// Parse the configuration
+	d := caddyfile.NewTestDispenser(configWithExcludeWatch)
+	module := &FrankenPHPModule{}
+
+	// Unmarshal the configuration
+	err := module.UnmarshalCaddyfile(d)
+
+	// Verify that no error was returned
+	require.NoError(t, err, "Expected no error when configuring a worker with an exclude watch pattern")
+
+	// Verify that the worker was added to the module
+	require.Len(t, module.Workers, 1, "Expected one worker to be added to the module")
+	require.Equal(t, "../testdata/worker-with-env.php", module.Workers[0].FileName, "Worker should have the correct filename")
+
+	// Verify that the watch patterns were set correctly
+	require.Len(t, module.Workers[0].Watch, 3, "Expected three watch patterns")
+	require.Equal(t, defaultWatchPattern, module.Workers[0].Watch[0], "First watch pattern should be the default")
+	require.Equal(t, "!./vendor/**", module.Workers[0].Watch[1], "Second watch pattern should be the exclude pattern")
+	require.Equal(t, "./src/**/*.php", module.Workers[0].Watch[2], "Third watch pattern should match the configuration")
+}