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const WebpackCLITestPlugin = require('../../utils/webpack-cli-test-plugin'); | ||
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module.exports = { | ||
mode: 'development', | ||
devtool: false, | ||
plugins: [new WebpackCLITestPlugin(['mode'], false, 'hooks.compilation.taps')], | ||
watch: true, | ||
}; |
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console.log('watch flag test'); |
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'use strict'; | ||
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const stripAnsi = require('strip-ansi'); | ||
const { runAndGetWatchProc, isWebpack5 } = require('../../utils/test-utils'); | ||
const { writeFileSync } = require('fs'); | ||
const { resolve } = require('path'); | ||
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const wordsInStatsv4 = ['Hash', 'Built at:', 'main.js']; | ||
const wordsInStatsv5 = ['asset', 'index.js', 'compiled successfully']; | ||
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describe('watch variable', () => { | ||
it('should pass `WEBPACK_WATCH` env variable and recompile upon file change using the `watch` command', (done) => { | ||
const proc = runAndGetWatchProc(__dirname, ['watch', '--mode', 'development'], false, '', true); | ||
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let modified = false; | ||
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proc.stdout.on('data', (chunk) => { | ||
const data = stripAnsi(chunk.toString()); | ||
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expect(data).not.toContain('FAIL'); | ||
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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); | ||
} | ||
} | ||
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if (!modified) { | ||
process.nextTick(() => { | ||
writeFileSync(resolve(__dirname, './src/index.js'), `console.log('watch flag test');`); | ||
}); | ||
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modified = true; | ||
} else { | ||
proc.kill(); | ||
done(); | ||
} | ||
} | ||
}); | ||
}); | ||
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it('should pass `WEBPACK_WATCH` env variable and recompile upon file change using the `--watch` option', (done) => { | ||
const proc = runAndGetWatchProc(__dirname, ['--watch', '--mode', 'development'], false, '', true); | ||
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let modified = false; | ||
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proc.stdout.on('data', (chunk) => { | ||
const data = stripAnsi(chunk.toString()); | ||
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expect(data).not.toContain('FAIL'); | ||
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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); | ||
} | ||
} | ||
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if (!modified) { | ||
process.nextTick(() => { | ||
writeFileSync(resolve(__dirname, './src/index.js'), `console.log('watch flag test');`); | ||
}); | ||
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modified = true; | ||
} else { | ||
proc.kill(); | ||
done(); | ||
} | ||
} | ||
}); | ||
}); | ||
}); |
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const isInProcess = process.env.WEBPACK_WATCH; | ||
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class CustomTestPlugin { | ||
constructor(isInEnvironment) { | ||
this.isInEnvironment = isInEnvironment; | ||
} | ||
apply(compiler) { | ||
compiler.hooks.done.tap('testPlugin', () => { | ||
if (!isInProcess && this.isInEnvironment) { | ||
console.log('PASS'); | ||
} else { | ||
console.log('FAIL'); | ||
} | ||
}); | ||
} | ||
} | ||
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module.exports = (env) => { | ||
return { | ||
mode: 'development', | ||
devtool: false, | ||
plugins: [new CustomTestPlugin(env.WEBPACK_WATCH)], | ||
}; | ||
}; |