本文整理汇总了TypeScript中@angular-devkit/schematics/testing.UnitTestTree.beginUpdate方法的典型用法代码示例。如果您正苦于以下问题：TypeScript UnitTestTree.beginUpdate方法的具体用法？TypeScript UnitTestTree.beginUpdate怎么用？TypeScript UnitTestTree.beginUpdate使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类@angular-devkit/schematics/testing.UnitTestTree的用法示例。
在下文中一共展示了UnitTestTree.beginUpdate方法的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的TypeScript代码示例。
示例1: it
it('should throw error if property is not found', () => {
const content = JSON.stringify({});
tree.create('tmp', content);
const ast = parseJsonAst(content) as JsonAstObject;
const recorder = tree.beginUpdate('tmp');
expect(() => replacePropertyInAstObject(recorder, ast, 'foo', 'bar'))
.toThrowError(`Property 'foo' does not exist in JSON object`);
});示例2: it
it('should not fail when AppModule have imported RouterModule already', () => {
const updateRecorder = appTree.beginUpdate('/projects/bar/src/app/app.module.ts');
updateRecorder.insertLeft(0, 'import { RouterModule } from \'@angular/router\';');
appTree.commitUpdate(updateRecorder);
const tree = schematicRunner.runSchematic('appShell', defaultOptions, appTree);
const filePath = '/projects/bar/src/app/app.module.ts';
const content = tree.readContent(filePath);
expect(content).toMatch(/import { RouterModule } from \'@angular\/router\';/);
});示例3: runTest
function runTest(testFn: Function, obj: JsonValue, indent: number): string {
const content = JSON.stringify(obj, null, indent);
tree.create(filePath, content);
const ast = parseJsonAst(content);
const rec = tree.beginUpdate(filePath);
testFn(rec, ast);
tree.commitUpdate(rec);
const result = tree.readContent(filePath);
// Clean up the tree by deleting the file.
tree.delete(filePath);
return result;
}示例4: runTest
function runTest(obj: Pojso, prop: string, val: string): Pojso {
const content = JSON.stringify(obj, null, 2);
tree.create(filePath, content);
const ast = parseJsonAst(content);
const rec = tree.beginUpdate(filePath);
if (ast.kind === 'object') {
insertPropertyInAstObjectInOrder(rec, ast, prop, val, 2);
}
tree.commitUpdate(rec);
const result = JSON.parse(tree.readContent(filePath));
// Clean up the tree by deleting the file.
tree.delete(filePath);
return result;
}