angular-cn/packages/compiler/test/output/abstract_emitter_spec.ts

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/**
* @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 {escapeIdentifier} from '@angular/compiler/src/output/abstract_emitter';
{
describe('AbstractEmitter', () => {
describe('escapeIdentifier', () => {
it('should escape single quotes', () => {
expect(escapeIdentifier(`'`, false)).toEqual(`'\\''`);
});
it('should escape backslash', () => {
expect(escapeIdentifier('\\', false)).toEqual(`'\\\\'`);
});
it('should escape newlines', () => {
expect(escapeIdentifier('\n', false)).toEqual(`'\\n'`);
});
it('should escape carriage returns', () => {
expect(escapeIdentifier('\r', false)).toEqual(`'\\r'`);
});
it('should escape $', () => {
expect(escapeIdentifier('$', true)).toEqual(`'\\$'`);
});
it('should not escape $', () => {
expect(escapeIdentifier('$', false)).toEqual(`'$'`);
});
it('should add quotes for non-identifiers', () => {
expect(escapeIdentifier('==', false, false)).toEqual(`'=='`);
});
it('does not escape class (but it probably should)', () => {
expect(escapeIdentifier('class', false, false)).toEqual('class');
});
});
});
}
export function stripSourceMapAndNewLine(source: string): string {
if (source.endsWith('\n')) {
source = source.substring(0, source.length - 1);
}
const smi = source.lastIndexOf('\n//#');
if (smi == -1) return source;
return source.slice(0, smi);
}