angular-cn/modules/@angular/compiler/test/directive_resolver_spec.ts

199 lines
6.7 KiB
TypeScript

/**
* @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 {DirectiveResolver} from '@angular/compiler/src/directive_resolver';
import {ContentChild, ContentChildMetadata, ContentChildren, ContentChildrenMetadata, Directive, DirectiveMetadata, HostBinding, HostListener, Input, Output, ViewChild, ViewChildMetadata, ViewChildren, ViewChildrenMetadata} from '@angular/core/src/metadata';
import {beforeEach, ddescribe, describe, expect, iit, it} from '@angular/core/testing';
@Directive({selector: 'someDirective'})
class SomeDirective {
}
@Directive({selector: 'someChildDirective'})
class SomeChildDirective extends SomeDirective {
}
@Directive({selector: 'someDirective', inputs: ['c']})
class SomeDirectiveWithInputs {
@Input() a: any /** TODO #9100 */;
@Input('renamed') b: any /** TODO #9100 */;
c: any /** TODO #9100 */;
}
@Directive({selector: 'someDirective', outputs: ['c']})
class SomeDirectiveWithOutputs {
@Output() a: any /** TODO #9100 */;
@Output('renamed') b: any /** TODO #9100 */;
c: any /** TODO #9100 */;
}
@Directive({selector: 'someDirective', outputs: ['a']})
class SomeDirectiveWithDuplicateOutputs {
@Output() a: any /** TODO #9100 */;
}
@Directive({selector: 'someDirective', properties: ['a']})
class SomeDirectiveWithProperties {
}
@Directive({selector: 'someDirective', events: ['a']})
class SomeDirectiveWithEvents {
}
@Directive({selector: 'someDirective'})
class SomeDirectiveWithSetterProps {
@Input('renamed')
set a(value: any /** TODO #9100 */) {}
}
@Directive({selector: 'someDirective'})
class SomeDirectiveWithGetterOutputs {
@Output('renamed')
get a(): any /** TODO #9100 */ { return null; }
}
@Directive({selector: 'someDirective', host: {'[c]': 'c'}})
class SomeDirectiveWithHostBindings {
@HostBinding() a: any /** TODO #9100 */;
@HostBinding('renamed') b: any /** TODO #9100 */;
c: any /** TODO #9100 */;
}
@Directive({selector: 'someDirective', host: {'(c)': 'onC()'}})
class SomeDirectiveWithHostListeners {
@HostListener('a')
onA() {}
@HostListener('b', ['$event.value'])
onB(value: any /** TODO #9100 */) {}
}
@Directive({selector: 'someDirective', queries: {'cs': new ContentChildren('c')}})
class SomeDirectiveWithContentChildren {
@ContentChildren('a') as: any;
c: any /** TODO #9100 */;
}
@Directive({selector: 'someDirective', queries: {'cs': new ViewChildren('c')}})
class SomeDirectiveWithViewChildren {
@ViewChildren('a') as: any;
c: any /** TODO #9100 */;
}
@Directive({selector: 'someDirective', queries: {'c': new ContentChild('c')}})
class SomeDirectiveWithContentChild {
@ContentChild('a') a: any;
c: any /** TODO #9100 */;
}
@Directive({selector: 'someDirective', queries: {'c': new ViewChild('c')}})
class SomeDirectiveWithViewChild {
@ViewChild('a') a: any;
c: any /** TODO #9100 */;
}
class SomeDirectiveWithoutMetadata {}
export function main() {
describe('DirectiveResolver', () => {
var resolver: DirectiveResolver;
beforeEach(() => { resolver = new DirectiveResolver(); });
it('should read out the Directive metadata', () => {
var directiveMetadata = resolver.resolve(SomeDirective);
expect(directiveMetadata)
.toEqual(new DirectiveMetadata(
{selector: 'someDirective', inputs: [], outputs: [], host: {}, queries: {}}));
});
it('should throw if not matching metadata is found', () => {
expect(() => {
resolver.resolve(SomeDirectiveWithoutMetadata);
}).toThrowError('No Directive annotation found on SomeDirectiveWithoutMetadata');
});
it('should not read parent class Directive metadata', function() {
var directiveMetadata = resolver.resolve(SomeChildDirective);
expect(directiveMetadata)
.toEqual(new DirectiveMetadata(
{selector: 'someChildDirective', inputs: [], outputs: [], host: {}, queries: {}}));
});
describe('inputs', () => {
it('should append directive inputs', () => {
var directiveMetadata = resolver.resolve(SomeDirectiveWithInputs);
expect(directiveMetadata.inputs).toEqual(['c', 'a', 'b: renamed']);
});
it('should work with getters and setters', () => {
var directiveMetadata = resolver.resolve(SomeDirectiveWithSetterProps);
expect(directiveMetadata.inputs).toEqual(['a: renamed']);
});
});
describe('outputs', () => {
it('should append directive outputs', () => {
var directiveMetadata = resolver.resolve(SomeDirectiveWithOutputs);
expect(directiveMetadata.outputs).toEqual(['c', 'a', 'b: renamed']);
});
it('should work with getters and setters', () => {
var directiveMetadata = resolver.resolve(SomeDirectiveWithGetterOutputs);
expect(directiveMetadata.outputs).toEqual(['a: renamed']);
});
it('should throw if duplicate outputs', () => {
expect(() => { resolver.resolve(SomeDirectiveWithDuplicateOutputs); })
.toThrowError(
`Output event 'a' defined multiple times in 'SomeDirectiveWithDuplicateOutputs'`);
});
});
describe('host', () => {
it('should append host bindings', () => {
var directiveMetadata = resolver.resolve(SomeDirectiveWithHostBindings);
expect(directiveMetadata.host).toEqual({'[c]': 'c', '[a]': 'a', '[renamed]': 'b'});
});
it('should append host listeners', () => {
var directiveMetadata = resolver.resolve(SomeDirectiveWithHostListeners);
expect(directiveMetadata.host)
.toEqual({'(c)': 'onC()', '(a)': 'onA()', '(b)': 'onB($event.value)'});
});
});
describe('queries', () => {
it('should append ContentChildren', () => {
var directiveMetadata = resolver.resolve(SomeDirectiveWithContentChildren);
expect(directiveMetadata.queries)
.toEqual({'cs': new ContentChildren('c'), 'as': new ContentChildren('a')});
});
it('should append ViewChildren', () => {
var directiveMetadata = resolver.resolve(SomeDirectiveWithViewChildren);
expect(directiveMetadata.queries)
.toEqual({'cs': new ViewChildren('c'), 'as': new ViewChildren('a')});
});
it('should append ContentChild', () => {
var directiveMetadata = resolver.resolve(SomeDirectiveWithContentChild);
expect(directiveMetadata.queries)
.toEqual({'c': new ContentChild('c'), 'a': new ContentChild('a')});
});
it('should append ViewChild', () => {
var directiveMetadata = resolver.resolve(SomeDirectiveWithViewChild);
expect(directiveMetadata.queries)
.toEqual({'c': new ViewChild('c'), 'a': new ViewChild('a')});
});
});
});
}