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rebuild.ts
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rebuild.ts
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import { waitForAnyProcessOutputToMatch, silentNg } from '../../utils/process';
import { writeFile, writeMultipleFiles } from '../../utils/fs';
import fetch from 'node-fetch';
import { ngServe } from '../../utils/project';
import { getGlobalVariable } from '../../utils/env';
export default async function () {
const esbuild = getGlobalVariable('argv')['esbuild'];
const validBundleRegEx = esbuild ? /complete\./ : /Compiled successfully\./;
const lazyBundleRegEx = esbuild ? /lazy\.module/ : /lazy_module_ts\.js/;
const port = await ngServe();
// Add a lazy module.
await silentNg('generate', 'module', 'lazy', '--routing');
// Should trigger a rebuild with a new bundle.
// We need to use Promise.all to ensure we are waiting for the rebuild just before we write
// the file, otherwise rebuilds can be too fast and fail CI.
// Count the bundles.
await Promise.all([
waitForAnyProcessOutputToMatch(lazyBundleRegEx),
writeFile(
'src/app/app.module.ts',
`
import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { FormsModule } from '@angular/forms';
import { HttpClientModule } from '@angular/common/http';
import { AppComponent } from './app.component';
import { RouterModule } from '@angular/router';
@NgModule({
declarations: [
AppComponent
],
imports: [
BrowserModule,
FormsModule,
HttpClientModule,
RouterModule.forRoot([
{ path: 'lazy', loadChildren: () => import('./lazy/lazy.module').then(m => m.LazyModule) }
])
],
providers: [],
bootstrap: [AppComponent]
})
export class AppModule { }
`,
),
]);
// Change multiple files and check that all of them are invalidated and recompiled.
await Promise.all([
waitForAnyProcessOutputToMatch(validBundleRegEx),
writeMultipleFiles({
'src/app/app.module.ts': `
import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { AppComponent } from './app.component';
@NgModule({
declarations: [
AppComponent
],
imports: [
BrowserModule
],
providers: [],
bootstrap: [AppComponent]
})
export class AppModule { }
console.log('$$_E2E_GOLDEN_VALUE_1');
export let X = '$$_E2E_GOLDEN_VALUE_2';
`,
'src/main.ts': `
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { AppModule } from './app/app.module';
platformBrowserDynamic().bootstrapModule(AppModule);
import * as m from './app/app.module';
console.log(m.X);
console.log('$$_E2E_GOLDEN_VALUE_3');
`,
}),
]);
await Promise.all([
waitForAnyProcessOutputToMatch(validBundleRegEx),
writeMultipleFiles({
'src/app/app.module.ts': `
import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { AppComponent } from './app.component';
@NgModule({
declarations: [
AppComponent
],
imports: [
BrowserModule
],
providers: [],
bootstrap: [AppComponent]
})
export class AppModule { }
console.log('$$_E2E_GOLDEN_VALUE_1');
export let X = '$$_E2E_GOLDEN_VALUE_2';
console.log('File changed with no import/export changes');
`,
}),
]);
{
const response = await fetch(`http://localhost:${port}/main.js`);
const body = await response.text();
if (!body.match(/\$\$_E2E_GOLDEN_VALUE_1/)) {
throw new Error('Expected golden value 1.');
}
if (!body.match(/\$\$_E2E_GOLDEN_VALUE_2/)) {
throw new Error('Expected golden value 2.');
}
if (!body.match(/\$\$_E2E_GOLDEN_VALUE_3/)) {
throw new Error('Expected golden value 3.');
}
}
await Promise.all([
waitForAnyProcessOutputToMatch(validBundleRegEx),
writeMultipleFiles({
'src/app/app.component.html': '<h1>testingTESTING123</h1>',
}),
]);
{
const response = await fetch(`http://localhost:${port}/main.js`);
const body = await response.text();
if (!body.match(/testingTESTING123/)) {
throw new Error('Expected component HTML to update.');
}
}
await Promise.all([
waitForAnyProcessOutputToMatch(validBundleRegEx),
writeMultipleFiles({
'src/app/app.component.css': ':host { color: blue; }',
}),
]);
{
const response = await fetch(`http://localhost:${port}/main.js`);
const body = await response.text();
if (!body.match(/color:\s?blue/)) {
throw new Error('Expected component CSS to update.');
}
}
}