refactor: move angular source to /packages rather than modules/@angular

packages/language-service/test/html_info_spec.ts

@@ -0,0 +1,52 @@
+/**
+ * @license
+ * Copyright Google Inc. All Rights Reserved.
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://angular.io/license
+ */
+
+import {DomElementSchemaRegistry} from '@angular/compiler';
+import {SchemaInformation} from '../src/html_info';
+
+describe('html_info', () => {
+  const domRegistry = new DomElementSchemaRegistry();
+
+  it('should have the same elements as the dom registry', () => {
+    // If this test fails, replace the SCHEMA constant in html_info with the one
+    // from dom_element_schema_registry and also verify the code to interpret
+    // the schema is the same.
+    const domElements = domRegistry.allKnownElementNames();
+    const infoElements = SchemaInformation.instance.allKnownElements();
+    const uniqueToDom = uniqueElements(infoElements, domElements);
+    const uniqueToInfo = uniqueElements(domElements, infoElements);
+    expect(uniqueToDom).toEqual([]);
+    expect(uniqueToInfo).toEqual([]);
+  });
+
+  it('should have at least a sub-set of properties', () => {
+    const elements = SchemaInformation.instance.allKnownElements();
+    for (const element of elements) {
+      for (const prop of SchemaInformation.instance.propertiesOf(element)) {
+        expect(domRegistry.hasProperty(element, prop, []));
+      }
+    }
+  });
+
+});
+
+function uniqueElements<T>(a: T[], b: T[]): T[] {
+  const s = new Set<T>();
+  for (const aItem of a) {
+    s.add(aItem);
+  }
+  const result: T[] = [];
+  const reported = new Set<T>();
+  for (const bItem of b) {
+    if (!s.has(bItem) && !reported.has(bItem)) {
+      reported.add(bItem);
+      result.push(bItem);
+    }
+  }
+  return result;
+}