feat(Compiler): case sensitive html parser

close #4417

Closes #5264

modules/angular2/test/compiler/html_lexer_spec.ts

@@ -1,8 +1,22 @@
-import {ddescribe, describe, it, iit, xit, expect, beforeEach, afterEach} from '../../test_lib';
-import {BaseException} from '../../src/facade/exceptions';
+import {
+  ddescribe,
+  describe,
+  it,
+  iit,
+  xit,
+  expect,
+  beforeEach,
+  afterEach
+} from 'angular2/testing_internal';
+import {BaseException} from 'angular2/src/facade/exceptions';
 
-import {tokenizeHtml, HtmlToken, HtmlTokenType} from '../../src/compiler/html_lexer';
-import {ParseSourceSpan, ParseLocation} from '../../src/compiler/parse_util';
+import {
+  tokenizeHtml,
+  HtmlToken,
+  HtmlTokenType,
+  HtmlTokenError
+} from 'angular2/src/compiler/html_lexer';
+import {ParseSourceSpan, ParseLocation, ParseSourceFile} from 'angular2/src/compiler/parse_util';
 
 export function main() {
   describe('HtmlLexer', () => {
@@ -263,6 +277,17 @@ export function main() {
             ]);
       });
 
+      it('should parse attributes with "&" in values', () => {
+        expect(tokenizeAndHumanizeParts('<t a="b && c &">'))
+            .toEqual([
+              [HtmlTokenType.TAG_OPEN_START, null, 't'],
+              [HtmlTokenType.ATTR_NAME, null, 'a'],
+              [HtmlTokenType.ATTR_VALUE, 'b && c &'],
+              [HtmlTokenType.TAG_OPEN_END],
+              [HtmlTokenType.EOF]
+            ]);
+      });
+
       it('should store the locations', () => {
         expect(tokenizeAndHumanizeSourceSpans('<t a=b>'))
             .toEqual([
@@ -364,6 +389,11 @@ export function main() {
             .toEqual([[HtmlTokenType.TEXT, 'a&b'], [HtmlTokenType.EOF]]);
       });
 
+      it('should parse text starting with "&"', () => {
+        expect(tokenizeAndHumanizeParts('a && b &'))
+            .toEqual([[HtmlTokenType.TEXT, 'a && b &'], [HtmlTokenType.EOF]]);
+      });
+
       it('should store the locations', () => {
         expect(tokenizeAndHumanizeSourceSpans('a'))
             .toEqual([[HtmlTokenType.TEXT, 'a'], [HtmlTokenType.EOF, '']]);
@@ -486,6 +516,17 @@ export function main() {
 
     });
 
+    describe('errors', () => {
+      it('should include 2 lines of context in message', () => {
+        let src = "111\n222\n333\nE\n444\n555\n666\n";
+        let file = new ParseSourceFile(src, 'file://');
+        let location = new ParseLocation(file, 12, 123, 456);
+        let error = new HtmlTokenError('**ERROR**', null, location);
+        expect(error.toString())
+            .toEqual(`**ERROR** ("\n222\n333\nE\n444\n555\n"): file://@123:456`);
+      });
+    });
+
   });
 }