import { SchematicTestRunner, UnitTestTree } from '@angular-devkit/schematics/testing';
import * as fs from 'fs';
import { createOhayoAndModuleApp } from '../utils/testing';

describe('Schematic: list', () => {
  let runner: SchematicTestRunner;
  let tree: UnitTestTree;
  const modulePath = '/projects/foo/src/app/routes/trade/trade.module.ts';
  const routingPath = '/projects/foo/src/app/routes/trade/trade-routing.module.ts';
  const tsPath = '/projects/foo/src/app/routes/trade/list/list.component.ts';
  const htmlPath = '/projects/foo/src/app/routes/trade/list/list.component.html';

  beforeEach(async () => {
    ({ runner, tree } = await createOhayoAndModuleApp());

    tree = await runner.runSchematicAsync('list', { name: 'list', module: 'trade' }, tree).toPromise();
  });

  it('should be generate list page', () => {
    [modulePath, routingPath, tsPath, htmlPath].forEach(path => expect(tree.exists(path)).toBe(true));
  });

  it('should be has import code', () => {
    expect(tree.readContent(modulePath)).toContain(`import { TradeListComponent } from './list/list.component';`);
  });

  it('should be include module name in component name', () => {
    expect(tree.readContent(tsPath)).toContain(`TradeListComponent`);
  });

  it('shuold be exclude style', () => {
    expect(tree.readContent(tsPath)).not.toContain(`styleUrls`);
  });

  it('should be support targets (like: list/edit)', async () => {
    tree = await runner.runSchematicAsync('list', { name: 'list2', module: 'trade', target: 'list/edit' }, tree).toPromise();
    expect(tree.exists(`/projects/foo/src/app/routes/trade/list/edit/list2/list2.component.html`)).toBe(true);
  });

  it('should be throw error when directory already exists', async () => {
    spyOn(fs, 'existsSync').and.returnValue(true);
    try {
      tree = await runner.runSchematicAsync('list', { name: 'list', module: 'trade' }, tree).toPromise();
      expect(true).toBe(false);
    } catch (e) {
      expect(e.message).toContain(`already exists`);
    }
  });
});