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48 lines
1.5 KiB
48 lines
1.5 KiB
import * as cp from 'child_process' |
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import { mkdir, writeFile } from 'fs/promises' |
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import { join, isAbsolute } from 'path' |
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import { tmpdir } from 'os' |
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import { promisify } from 'util' |
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const exec = promisify(cp.exec) |
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export const tests = [] |
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export const setup = async ({ path }) => { |
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const randomFilesNumber = Math.floor(Math.random() * (30 - 1) + 1) |
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const dir = `${tmpdir()}/tell-me-how-many` |
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await mkdir(dir) |
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for (let i = 0; i < randomFilesNumber; i++) { |
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await writeFile(`${dir}/${i}.txt`, '', 'utf8') |
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} |
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const run = async (cmd) => { |
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const cmdPath = isAbsolute(cmd || '') ? cmd : join(dir, cmd || '') |
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const { stdout } = await exec(`node ${path} ${cmdPath}`) |
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return { stdout: stdout.trim() } |
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} |
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return { randomFilesNumber, tmpPath: dir, run } |
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} |
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tests.push(async ({ path, eq, ctx }) => { |
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// will execute the script in a folder named `tell-me-how-many` |
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// '../tell-me-how-many' in the argument passed |
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// `tell-me-how-many` folder has a random file number |
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const { stdout } = await ctx.run('../tell-me-how-many') |
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return eq(Number(stdout), ctx.randomFilesNumber) |
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}) |
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tests.push(async ({ path, eq, ctx }) => { |
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// will execute the script without argument |
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const { stdout } = await ctx.run() |
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return eq(Number(stdout), ctx.randomFilesNumber) |
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}) |
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tests.push(async ({ path, eq, ctx }) => { |
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// will execute the script with `tell-me-how-many` folder's absolute path as argument |
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const { stdout } = await ctx.run(ctx.tmpPath) |
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return eq(Number(stdout), ctx.randomFilesNumber) |
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}) |
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Object.freeze(tests)
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