66 lines
2.8 KiB
TypeScript
66 lines
2.8 KiB
TypeScript
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/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {CompileIdentifierMetadata} from '../../src/compile_metadata';
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import * as o from '../../src/output/output_ast';
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import {CompileView} from '../../src/view_compiler/compile_view';
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import {getPropertyInView} from '../../src/view_compiler/util';
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export function main() {
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describe('getPropertyInView', () => {
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it('should return the expression if it is the same view', () => {
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const expr = o.THIS_EXPR.prop('someProp');
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const callingView = createCompileView({className: 'view'});
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expect(getPropertyInView(expr, callingView, callingView)).toBe(expr);
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});
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it('should access an unknown property in a parent view', () => {
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const expr = o.THIS_EXPR.prop('someProp');
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const definedView = createCompileView({className: 'parentView'});
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const callingView = createCompileView({className: 'childView', parent: definedView});
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expect(getPropertyInView(expr, callingView, definedView))
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.toEqual(o.THIS_EXPR.prop('parent').prop('someProp'));
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});
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it('should access a known property in a parent view with cast', () => {
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const expr = o.THIS_EXPR.prop('someProp');
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const definedView = createCompileView({className: 'parentView', fields: ['someProp']});
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const callingView = createCompileView({className: 'childView', parent: definedView});
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expect(getPropertyInView(expr, callingView, definedView))
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.toEqual(o.THIS_EXPR.prop('parent').cast(definedView.classType).prop('someProp'));
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});
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it('should access a known property in a parent view with cast also for property chain expressions',
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() => {
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const expr = o.THIS_EXPR.prop('someProp').prop('context');
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const definedView = createCompileView({className: 'parentView', fields: ['someProp']});
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const callingView = createCompileView({className: 'childView', parent: definedView});
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expect(getPropertyInView(expr, callingView, definedView))
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.toEqual(o.THIS_EXPR.prop('parent')
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.cast(definedView.classType)
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.prop('someProp')
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.prop('context'));
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});
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});
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}
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function createCompileView(config: {className: string, parent?: CompileView, fields?: string[]}):
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CompileView {
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const declarationElement: any = config.parent ? {view: config.parent} : {view: null};
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const fields: o.ClassField[] = [];
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if (config.fields) {
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config.fields.forEach((fieldName) => { fields.push(new o.ClassField(fieldName)); });
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}
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return <any>{
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classType: o.importType(new CompileIdentifierMetadata({name: config.className})),
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fields: fields,
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getters: [],
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declarationElement: declarationElement
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};
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}
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