angular-cn/modules/@angular/upgrade/test/metadata_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 {Component} from '@angular/core';
import {describe, expect, it} from '@angular/core/testing/testing_internal';
import {getComponentInfo, parseFields} from '@angular/upgrade/src/metadata';
export function main() {
describe('upgrade metadata', () => {
it('should extract component selector', () => {
expect(getComponentInfo(ElementNameComponent).selector).toEqual('elementNameDashed');
});
describe('errors', () => {
it('should throw on missing selector', () => {
expect(() => getComponentInfo(AttributeNameComponent))
.toThrowError('Only selectors matching element names are supported, got: [attr-name]');
});
it('should throw on non element names', () => {
expect(() => getComponentInfo(NoAnnotationComponent))
.toThrowError('No Directive annotation found on NoAnnotationComponent');
});
});
describe('parseFields', () => {
it('should process nulls', () => { expect(parseFields(null)).toEqual([]); });
it('should process values', () => {
expect(parseFields([' name ', ' prop : attr '])).toEqual([
{
prop: 'name',
attr: 'name',
bracketAttr: '[name]',
parenAttr: '(name)',
bracketParenAttr: '[(name)]',
onAttr: 'onName',
bindAttr: 'bindName',
bindonAttr: 'bindonName'
},
{
prop: 'prop',
attr: 'attr',
bracketAttr: '[attr]',
parenAttr: '(attr)',
bracketParenAttr: '[(attr)]',
onAttr: 'onAttr',
bindAttr: 'bindAttr',
bindonAttr: 'bindonAttr'
}
]);
});
});
});
}
@Component({selector: 'element-name-dashed', template: ``})
class ElementNameComponent {
}
@Component({selector: '[attr-name]', template: ``})
class AttributeNameComponent {
}
class NoAnnotationComponent {}