angular-cn/packages/core/test/view/text_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 {ɵgetDOM as getDOM} from '@angular/common';
import {getDebugNode} from '@angular/core';
import {NodeFlags, Services, asTextData, elementDef, textDef} from '@angular/core/src/view/index';
import {ARG_TYPE_VALUES, checkNodeInlineOrDynamic, compViewDef, createAndGetRootNodes} from './helper';
{
describe(`View Text`, () => {
describe('create', () => {
it('should create text nodes without parents', () => {
const rootNodes = createAndGetRootNodes(compViewDef([textDef(0, null, ['a'])])).rootNodes;
expect(rootNodes.length).toBe(1);
expect(rootNodes[0].textContent).toBe('a');
});
it('should create views with multiple root text nodes', () => {
const rootNodes = createAndGetRootNodes(compViewDef([
textDef(0, null, ['a']),
textDef(1, null, ['b']),
])).rootNodes;
expect(rootNodes.length).toBe(2);
});
it('should create text nodes with parents', () => {
const rootNodes = createAndGetRootNodes(compViewDef([
elementDef(0, NodeFlags.None, null, null, 1, 'div'),
textDef(1, null, ['a']),
])).rootNodes;
expect(rootNodes.length).toBe(1);
const textNode = rootNodes[0].firstChild;
expect(textNode.textContent).toBe('a');
});
it('should add debug information to the renderer', () => {
const someContext = {};
const {view, rootNodes} =
createAndGetRootNodes(compViewDef([textDef(0, null, ['a'])]), someContext);
expect(getDebugNode(rootNodes[0]) !.nativeNode).toBe(asTextData(view, 0).renderText);
});
});
describe('change text', () => {
ARG_TYPE_VALUES.forEach((inlineDynamic) => {
it(`should update via strategy ${inlineDynamic}`, () => {
const {view, rootNodes} = createAndGetRootNodes(compViewDef(
[
textDef(0, null, ['0', '1', '2']),
],
null !, (check, view) => {
checkNodeInlineOrDynamic(check, view, 0, inlineDynamic, ['a', 'b']);
}));
Services.checkAndUpdateView(view);
expect(rootNodes[0].textContent).toBe('0a1b2');
});
});
});
});
}