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basic.test.js
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basic.test.js
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'use strict';
const stripAnsi = require('strip-ansi');
const { run, runAndGetWatchProc, isWebpack5 } = require('../../utils/test-utils');
const { writeFileSync } = require('fs');
const { resolve } = require('path');
const wordsInStatsv4 = ['Hash', 'Version', 'Time', 'Built at:', 'main.js'];
const wordsInStatsv5 = ['asset', 'index.js', 'compiled successfully'];
describe('basic', () => {
it('should work with negative value', async () => {
const { exitCode, stderr, stdout } = await run(__dirname, ['-c', './watch.config.js', '--no-watch']);
expect(exitCode).toBe(0);
expect(stderr).toBeFalsy();
expect(stdout).toBeTruthy();
});
it('should recompile upon file change using the `--watch` option', (done) => {
const proc = runAndGetWatchProc(__dirname, ['--watch', '--mode', 'development'], false, '', true);
let modified = false;
proc.stdout.on('data', (chunk) => {
const data = stripAnsi(chunk.toString());
if (data.includes('index.js')) {
if (isWebpack5) {
for (const word of wordsInStatsv5) {
expect(data).toContain(word);
}
} else {
for (const word of wordsInStatsv4) {
expect(data).toContain(word);
}
}
if (!modified) {
process.nextTick(() => {
writeFileSync(resolve(__dirname, './src/index.js'), `console.log('watch flag test');\n`);
});
modified = true;
} else {
proc.kill();
done();
}
}
});
});
it('should recompile upon file change using the `watch` command', (done) => {
const proc = runAndGetWatchProc(__dirname, ['watch', '--mode', 'development'], false, '', true);
let modified = false;
proc.stdout.on('data', (chunk) => {
const data = stripAnsi(chunk.toString());
if (data.includes('index.js')) {
if (isWebpack5) {
for (const word of wordsInStatsv5) {
expect(data).toContain(word);
}
} else {
for (const word of wordsInStatsv4) {
expect(data).toContain(word);
}
}
if (!modified) {
process.nextTick(() => {
writeFileSync(resolve(__dirname, './src/index.js'), `console.log('watch flag test');\n`);
});
modified = true;
} else {
proc.kill();
done();
}
}
});
});
it('should recompile upon file change using the `watch` command and entries syntax', (done) => {
const proc = runAndGetWatchProc(__dirname, ['watch', './src/entry.js', '--mode', 'development'], false, '', true);
let modified = false;
const wordsInStatsv5Entries = ['asset', 'entry.js', 'compiled successfully'];
proc.stdout.on('data', (chunk) => {
const data = stripAnsi(chunk.toString());
if (data.includes('entry.js')) {
if (isWebpack5) {
for (const word of wordsInStatsv5Entries) {
expect(data).toContain(word);
}
} else {
for (const word of wordsInStatsv4) {
expect(data).toContain(word);
}
}
if (!modified) {
process.nextTick(() => {
writeFileSync(resolve(__dirname, './src/entry.js'), `console.log('watch flag test');\n`);
});
modified = true;
} else {
proc.kill();
done();
}
}
});
});
it('should recompile upon file change using the `command` option and the `--watch` option and log warning', (done) => {
const proc = runAndGetWatchProc(__dirname, ['watch', '--watch', '--mode', 'development'], false, '', true);
let modified = false;
let hasWarning = false;
proc.stdout.on('data', (chunk) => {
const data = stripAnsi(chunk.toString());
if (data.includes('index.js')) {
if (isWebpack5) {
for (const word of wordsInStatsv5) {
expect(data).toContain(word);
}
} else {
for (const word of wordsInStatsv4) {
expect(data).toContain(word);
}
}
if (!modified && !hasWarning) {
process.nextTick(() => {
writeFileSync(resolve(__dirname, './src/index.js'), `console.log('watch flag test');\n`);
});
modified = true;
} else {
proc.kill();
done();
}
}
});
proc.stderr.on('data', (chunk) => {
const data = stripAnsi(chunk.toString());
hasWarning = true;
expect(data).toContain("No need to use the '--watch, -w' option together with the 'watch' command, it does not make sense");
});
});
it('should recompile upon file change using the `command` option and the `--no-watch` option and log warning', (done) => {
const proc = runAndGetWatchProc(__dirname, ['watch', '--no-watch', '--mode', 'development'], false, '', true);
let modified = false;
let hasWarning = false;
proc.stdout.on('data', (chunk) => {
const data = stripAnsi(chunk.toString());
if (data.includes('index.js')) {
if (isWebpack5) {
for (const word of wordsInStatsv5) {
expect(data).toContain(word);
}
} else {
for (const word of wordsInStatsv4) {
expect(data).toContain(word);
}
}
if (!modified && !hasWarning) {
process.nextTick(() => {
writeFileSync(resolve(__dirname, './src/index.js'), `console.log('watch flag test');\n`);
});
modified = true;
} else {
proc.kill();
done();
}
}
});
proc.stderr.on('data', (chunk) => {
const data = stripAnsi(chunk.toString());
hasWarning = true;
expect(data).toContain("No need to use the '--no-watch' option together with the 'watch' command, it does not make sense");
});
});
});