programming-challenges/cli/commands/run/__test__/test.test.ts

import test from "node:test"
import assert from "node:assert/strict"
import { PassThrough } from "node:stream"

import sinon from "sinon"
import chalk from "chalk"

import { cli } from "../../../cli.js"
import { SolutionTestsResult } from "../../../services/SolutionTestsResult.js"

const input = ["run", "test"]
const challenge = "hello-world"
const language = "c"
const solution = "function"
const inputChallenge = `--challenge=${challenge}`
const inputLanguage = `--language=${language}`
const inputSolution = `--solution=${solution}`

await test("programming-challenges run test", async (t) => {
  t.afterEach(() => {
    sinon.restore()
  })

  await t.test("succeeds", async () => {
    sinon.stub(console, "log").value(() => {})
    const consoleLogSpy = sinon.spy(console, "log")
    const stream = new PassThrough()
    const exitCode = await cli.run(
      [...input, inputChallenge, inputSolution, inputLanguage],
      {
        stdin: process.stdin,
        stdout: stream,
        stderr: stream,
      },
    )
    stream.end()
    assert.strictEqual(exitCode, 0)
    assert.strictEqual(
      consoleLogSpy.calledWith(
        `${chalk.bold("Name:")} ${challenge}/${language}/${solution}\n`,
      ),
      true,
    )
    assert.strictEqual(
      consoleLogSpy.calledWith(
        `${chalk.bold("Tests:")} ${chalk.bold.green("3 passed")}, 3 total`,
      ),
      true,
    )
    assert.strictEqual(
      consoleLogSpy.calledWith(SolutionTestsResult.SUCCESS_MESSAGE),
      true,
    )
  })

  await t.test("fails with solution that doesn't exist", async () => {
    sinon.stub(console, "error").value(() => {})
    const consoleErrorSpy = sinon.spy(console, "error")
    const stream = new PassThrough()
    const invalidSolution = "invalid"
    const inputInvalidSolution = `--solution=${invalidSolution}`
    const exitCode = await cli.run(
      [...input, inputChallenge, inputInvalidSolution, inputLanguage],
      {
        stdin: process.stdin,
        stdout: stream,
        stderr: stream,
      },
    )
    stream.end()
    assert.strictEqual(exitCode, 1)
    assert.strictEqual(
      consoleErrorSpy.calledWith(
        chalk.bold.red("Error:") + " The solution was not found.",
      ),
      true,
    )
  })

  await t.test("fails with invalid language", async () => {
    sinon.stub(console, "error").value(() => {})
    const consoleErrorSpy = sinon.spy(console, "error")
    const stream = new PassThrough()
    const invalidLanguage = "invalid"
    const inputInvalidLanguage = `--language=${invalidLanguage}`
    const exitCode = await cli.run(
      [...input, inputChallenge, inputSolution, inputInvalidLanguage],
      {
        stdin: process.stdin,
        stdout: stream,
        stderr: stream,
      },
    )
    stream.end()
    assert.strictEqual(exitCode, 1)
    assert.strictEqual(
      consoleErrorSpy.calledWith(
        chalk.bold.red("Error:") +
          " This programming language is not supported yet.",
      ),
      true,
    )
  })

  await t.test("fails without options", async () => {
    sinon.stub(console, "error").value(() => {})
    const consoleErrorSpy = sinon.spy(console, "error")
    const stream = new PassThrough()
    const exitCode = await cli.run(input, {
      stdin: process.stdin,
      stdout: stream,
      stderr: stream,
    })
    stream.end()
    assert.strictEqual(exitCode, 1)
    assert.strictEqual(
      consoleErrorSpy.calledWith(
        `${chalk.bold.red(
          "Error:",
        )} You must specify all the options (\`--challenge\`, \`--solution\`,  \`--language\`).`,
      ),
      true,
    )
  })
})