suffix_not_supported_spec.ts

/**
 * @license
 * Copyright Google LLC 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 {DiagnosticCategoryLabel} from '@angular/compiler-cli/src/ngtsc/core/api';
import ts from 'typescript';

import {ErrorCode, ExtendedTemplateDiagnosticName, ngErrorCode} from '../../../../../diagnostics';
import {absoluteFrom, getSourceFileOrError} from '../../../../../file_system';
import {runInEachFileSystem} from '../../../../../file_system/testing';
import {getSourceCodeForDiagnostic} from '../../../../../testing';
import {getClass, setup} from '../../../../testing';
import {factory as suffixNotSupportedFactory} from '../../../checks/suffix_not_supported';
import {ExtendedTemplateCheckerImpl} from '../../../src/extended_template_checker';

runInEachFileSystem(() => {
  describe('SuffixNotSupportedCheck', () => {
    it('binds the error code to its extended template diagnostic name', () => {
      expect(suffixNotSupportedFactory.code).toBe(ErrorCode.SUFFIX_NOT_SUPPORTED);
      expect(suffixNotSupportedFactory.name)
          .toBe(ExtendedTemplateDiagnosticName.SUFFIX_NOT_SUPPORTED);
    });

    it('should produce suffix not supported warning', () => {
      const fileName = absoluteFrom('/main.ts');
      const {program, templateTypeChecker} = setup([{
        fileName,
        templates: {
          'TestCmp': `<div [attr.width.px]="1"></div>`,
        },
        source: 'export class TestCmp {}'
      }]);
      const sf = getSourceFileOrError(program, fileName);
      const component = getClass(sf, 'TestCmp');
      const extendedTemplateChecker = new ExtendedTemplateCheckerImpl(
          templateTypeChecker, program.getTypeChecker(), [suffixNotSupportedFactory], {});
      const diags = extendedTemplateChecker.getDiagnosticsForComponent(component);
      expect(diags.length).toBe(1);
      expect(diags[0].category).toBe(ts.DiagnosticCategory.Warning);
      expect(diags[0].code).toBe(ngErrorCode(ErrorCode.SUFFIX_NOT_SUPPORTED));
      expect(getSourceCodeForDiagnostic(diags[0])).toBe(`attr.width.px`);
    });

    it('should not produce suffix not supported warning on a style binding', () => {
      const fileName = absoluteFrom('/main.ts');
      const {program, templateTypeChecker} = setup([{
        fileName,
        templates: {
          'TestCmp': `<div [style.width.px]="1"></div>`,
        },
        source: 'export class TestCmp {}'
      }]);
      const sf = getSourceFileOrError(program, fileName);
      const component = getClass(sf, 'TestCmp');
      const extendedTemplateChecker = new ExtendedTemplateCheckerImpl(
          templateTypeChecker, program.getTypeChecker(), [suffixNotSupportedFactory], {});
      const diags = extendedTemplateChecker.getDiagnosticsForComponent(component);
      expect(diags.length).toBe(0);
    });

    it('should not produce suffix not supported warning on an input', () => {
      const fileName = absoluteFrom('/main.ts');
      const {program, templateTypeChecker} = setup([
        {
          fileName,
          templates: {
            'TestCmp': `<div [myInput.px]="1"></div>`,
          },
          source: 'export class TestCmp {}',
        },
      ]);
      const sf = getSourceFileOrError(program, fileName);
      const component = getClass(sf, 'TestCmp');
      const extendedTemplateChecker = new ExtendedTemplateCheckerImpl(
          templateTypeChecker, program.getTypeChecker(), [suffixNotSupportedFactory], {});
      const diags = extendedTemplateChecker.getDiagnosticsForComponent(component);
      expect(diags.length).toBe(0);
    });
  });
});