angular-cn/packages/language-service/ivy/test/mock_host_spec.ts

75 lines
2.7 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 * as ts from 'typescript/lib/tsserverlibrary';
import {APP_MAIN, setup, TEST_SRCDIR} from './mock_host';
describe('mock host', () => {
const {project, service, tsLS} = setup();
beforeEach(() => {
service.reset();
});
it('can load test project from Bazel runfiles', () => {
expect(project).toBeInstanceOf(ts.server.ConfiguredProject);
const configPath = (project as ts.server.ConfiguredProject).getConfigFilePath();
expect(configPath.substring(TEST_SRCDIR.length))
.toBe('/angular/packages/language-service/test/project/tsconfig.json');
const program = tsLS.getProgram();
expect(program).toBeDefined();
const sourceFiles = program!.getSourceFiles().map(sf => {
const {fileName} = sf;
if (fileName.startsWith(TEST_SRCDIR)) {
return fileName.substring(TEST_SRCDIR.length);
}
return fileName;
});
expect(sourceFiles).toEqual(jasmine.arrayContaining([
// This shows that module resolution works
'/angular/packages/common/src/common.d.ts',
'/angular/packages/core/src/core.d.ts',
'/angular/packages/forms/src/forms.d.ts',
// This shows that project files are present
'/angular/packages/language-service/test/project/app/app.component.ts',
'/angular/packages/language-service/test/project/app/main.ts',
'/angular/packages/language-service/test/project/app/parsing-cases.ts',
]));
});
it('produces no TS error for test project', () => {
const errors = project.getAllProjectErrors();
expect(errors).toEqual([]);
const globalErrors = project.getGlobalProjectErrors();
expect(globalErrors).toEqual([]);
const diags = tsLS.getSemanticDiagnostics(APP_MAIN);
expect(diags).toEqual([]);
});
it('can overwrite test file', () => {
service.overwrite(APP_MAIN, `const x: string = 0`);
const scriptInfo = service.getScriptInfo(APP_MAIN);
expect(getText(scriptInfo)).toBe('const x: string = 0');
});
it('can find the cursor', () => {
const content = service.overwrite(APP_MAIN, `const fo¦o = 'hello world';`);
// content returned by overwrite() is the original content with cursor
expect(content).toBe(`const fo¦o = 'hello world';`);
const scriptInfo = service.getScriptInfo(APP_MAIN);
// script info content should not contain cursor
expect(getText(scriptInfo)).toBe(`const foo = 'hello world';`);
});
});
function getText(scriptInfo: ts.server.ScriptInfo): string {
const snapshot = scriptInfo.getSnapshot();
return snapshot.getText(0, snapshot.getLength());
}