test(dart/transform): Add unit tests for DirectiveMetadataReader

Author: Tim Blasi

modules/angular2/test/transform/template_compiler/all_tests.dart

@@ -1,7 +1,9 @@
 library angular2.test.transform.template_compiler.all_tests;
 
+import 'dart:async';
 import 'package:barback/barback.dart';
 import 'package:angular2/src/dom/html_adapter.dart';
+import 'package:angular2/src/render/api.dart';
 import 'package:angular2/src/transform/common/asset_reader.dart';
 import 'package:angular2/src/transform/common/parser.dart';
 import 'package:angular2/src/transform/template_compiler/directive_metadata_reader.dart';
@@ -52,44 +54,49 @@ void allTests() {
   });
 
   describe('DirectiveMetadataReader', () {
-    it('should parse simple expressions in inline templates', () async {
-      var inputPath =
-          'template_compiler/inline_expression_files/hello.ng_deps.dart';
+    Future<DirectiveMetadata> readSingleMetadata(inputPath) async {
       var ngDeps = await parser.parse(new AssetId('a', inputPath));
-
       var metadata = readDirectiveMetadata(ngDeps.registeredTypes.first);
-      expect(metadata.length).toEqual(2);
-      expect(metadata[0].selector).toEqual('hello-app');
+      expect(metadata.length).toEqual(1);
+      return metadata.first;
+    }
+
+    it('should parse selectors', () async {
+      var metadata = await readSingleMetadata(
+          'template_compiler/directive_metadata_files/selector.ng_deps.dart');
+      expect(metadata.selector).toEqual('hello-app');
     });
 
-    it('should parse simple methods in inline templates', () async {
-      var inputPath =
-      'template_compiler/inline_method_files/hello.ng_deps.dart';
-      var ngDeps = await parser.parse(new AssetId('a', inputPath));
+    it('should parse compile children values', () async {
+      var metadata = await readSingleMetadata('template_compiler/'
+          'directive_metadata_files/compile_children.ng_deps.dart');
+      expect(metadata.compileChildren).toBeTrue();
 
-      var metadata = readDirectiveMetadata(ngDeps.registeredTypes.first);
-      expect(metadata.length).toEqual(2);
-      expect(metadata[0].selector).toEqual('hello-app');
+      metadata = await readSingleMetadata(
+          'template_compiler/directive_metadata_files/selector.ng_deps.dart');
+      expect(metadata.compileChildren).toBeFalse();
     });
 
-    it('should parse simple expressions in linked templates.', () async {
-      var inputPath =
-      'template_compiler/url_expression_files/hello.ng_deps.dart';
-      var ngDeps = await parser.parse(new AssetId('a', inputPath));
-
-      var metadata = readDirectiveMetadata(ngDeps.registeredTypes.first);
-      expect(metadata.length).toEqual(2);
-      expect(metadata[0].selector).toEqual('hello-app');
+    it('should parse properties.', () async {
+      var metadata = await readSingleMetadata('template_compiler/'
+          'directive_metadata_files/properties.ng_deps.dart');
+      expect(metadata.properties).toBeNotNull();
+      expect(metadata.properties.length).toBe(2);
+      expect(metadata.properties).toContain('key1');
+      expect(metadata.properties['key1']).toEqual('val1');
+      expect(metadata.properties).toContain('key2');
+      expect(metadata.properties['key2']).toEqual('val2');
     });
 
-    it('should parse simple methods in linked templates.', () async {
-      var inputPath =
-      'template_compiler/url_method_files/hello.ng_deps.dart';
-      var ngDeps = await parser.parse(new AssetId('a', inputPath));
-
-      var metadata = readDirectiveMetadata(ngDeps.registeredTypes.first);
-      expect(metadata.length).toEqual(2);
-      expect(metadata[0].selector).toEqual('hello-app');
+    it('should parse host listeners.', () async {
+      var metadata = await readSingleMetadata('template_compiler/'
+          'directive_metadata_files/host_listeners.ng_deps.dart');
+      expect(metadata.hostListeners).toBeNotNull();
+      expect(metadata.hostListeners.length).toBe(2);
+      expect(metadata.hostListeners).toContain('change');
+      expect(metadata.hostListeners['change']).toEqual('onChange(\$event)');
+      expect(metadata.hostListeners).toContain('keyDown');
+      expect(metadata.hostListeners['keyDown']).toEqual('onKeyDown(\$event)');
     });
   });
 }

modules/angular2/test/transform/template_compiler/directive_metadata_files/compile_children.ng_deps.dart

@@ -0,0 +1,17 @@
+library examples.hello_world.index_common_dart.ng_deps.dart;
+
+import 'hello.dart';
+import 'package:angular2/angular2.dart'
+    show bootstrap, Component, Decorator, View, NgElement;
+
+bool _visited = false;
+void initReflector(reflector) {
+  if (_visited) return;
+  _visited = true;
+  reflector
+    ..registerType(HelloCmp, {
+      'factory': () => new HelloCmp(),
+      'parameters': const [const []],
+      'annotations': const [const Decorator(compileChildren: true)]
+    });
+}

modules/angular2/test/transform/template_compiler/directive_metadata_files/host_listeners.ng_deps.dart

@@ -0,0 +1,23 @@
+library examples.hello_world.index_common_dart.ng_deps.dart;
+
+import 'hello.dart';
+import 'package:angular2/angular2.dart'
+    show bootstrap, Component, Decorator, View, NgElement;
+
+bool _visited = false;
+void initReflector(reflector) {
+  if (_visited) return;
+  _visited = true;
+  reflector
+    ..registerType(HelloCmp, {
+      'factory': () => new HelloCmp(),
+      'parameters': const [const []],
+      'annotations': const [
+        const Component(
+            hostListeners: const {
+          'change': 'onChange(\$event)',
+          'keyDown': 'onKeyDown(\$event)'
+        })
+      ]
+    });
+}

modules/angular2/test/transform/template_compiler/directive_metadata_files/properties.ng_deps.dart

@@ -0,0 +1,19 @@
+library examples.hello_world.index_common_dart.ng_deps.dart;
+
+import 'hello.dart';
+import 'package:angular2/angular2.dart'
+    show bootstrap, Component, Decorator, View, NgElement;
+
+bool _visited = false;
+void initReflector(reflector) {
+  if (_visited) return;
+  _visited = true;
+  reflector
+    ..registerType(HelloCmp, {
+      'factory': () => new HelloCmp(),
+      'parameters': const [const []],
+      'annotations': const [
+        const Component(properties: const {'key1': 'val1', 'key2': 'val2'})
+      ]
+    });
+}

modules/angular2/test/transform/template_compiler/directive_metadata_files/selector.ng_deps.dart

@@ -0,0 +1,17 @@
+library examples.hello_world.index_common_dart.ng_deps.dart;
+
+import 'hello.dart';
+import 'package:angular2/angular2.dart'
+    show bootstrap, Component, Decorator, View, NgElement;
+
+bool _visited = false;
+void initReflector(reflector) {
+  if (_visited) return;
+  _visited = true;
+  reflector
+    ..registerType(HelloCmp, {
+      'factory': () => new HelloCmp(),
+      'parameters': const [const []],
+      'annotations': const [const Component(selector: 'hello-app')]
+    });
+}