package.json und npm-Skripte

// The script names that npm run <name> runs, in order.
export function runOrder(pkg, name) {
  return [name];
}

const pkg = {scripts: {prebuild: "node clean.js", build: "node build.js", postbuild: "echo done"}};
console.log(runOrder(pkg, "build"));

import {test} from 'node:test';
import assert from 'node:assert/strict';
import {runOrder} from './main.js';

const pkg = {
  name: 'demo',
  scripts: {prebuild: 'node clean.js', build: 'node build.js', postbuild: 'echo done', test: 'node --test', posttest: 'echo tested', start: 'node main.js'}
};

test('führt prebuild, build und postbuild in dieser Reihenfolge aus', () => {
  const got = runOrder(pkg, 'build');
  assert.deepEqual(got, ['prebuild', 'build', 'postbuild'], `runOrder(pkg, "build") lieferte ${JSON.stringify(got)}`);
});

test('lässt ein pre- oder post-Skript weg, das es nicht gibt', () => {
  const test = runOrder(pkg, 'test');
  assert.deepEqual(test, ['test', 'posttest'], `runOrder(pkg, "test") lieferte ${JSON.stringify(test)}`);
  const start = runOrder(pkg, 'start');
  assert.deepEqual(start, ['start'], `runOrder(pkg, "start") lieferte ${JSON.stringify(start)}`);
});

test('wirft Missing script für ein Skript, das es nicht gibt', () => {
  assert.throws(() => runOrder(pkg, 'dev'), {message: 'Missing script: "dev"'}, 'runOrder(pkg, "dev") sollte einen Error mit der Meldung Missing script: "dev" werfen');
});

test('wirft auch, wenn package.json gar kein "scripts" hat', () => {
  assert.throws(() => runOrder({name: 'empty'}, 'test'), {message: 'Missing script: "test"'}, 'runOrder({name: "empty"}, "test") sollte Missing script: "test" werfen');
});

{
  "type": "module"
}

// The "test" script that npm init -y writes.
const PLACEHOLDER = 'echo "Error: no test specified" && exit 1';

export function checkPackage(pkg) {
  const problems = [];
  return problems;
}

console.log(checkPackage({name: "demo", version: "1.0.0", type: "commonjs", scripts: {test: PLACEHOLDER}}));

import {test} from 'node:test';
import assert from 'node:assert/strict';
import {checkPackage} from './main.js';

// Exactly what npm init -y wrote with npm 11.19.0.
const fromInit = {
  name: 'demo',
  version: '1.0.0',
  description: '',
  main: 'index.js',
  scripts: {test: 'echo "Error: no test specified" && exit 1'},
  keywords: [],
  author: '',
  license: 'ISC',
  type: 'commonjs'
};

test('findet alle drei Probleme in dem, was npm init -y schreibt', () => {
  const got = checkPackage(fromInit);
  assert.deepEqual(got, ['type: set it to "module"', 'private: set it to true', 'test: write a real test script'], `checkPackage(fromInit) lieferte ${JSON.stringify(got)}`);
});

test('liefert eine leere Liste für eine fertige package.json', () => {
  const got = checkPackage({name: 'demo', version: '1.0.0', private: true, type: 'module', scripts: {test: 'node --test'}});
  assert.deepEqual(got, [], `eine fertige package.json ergab ${JSON.stringify(got)}`);
});

test('behandelt ein fehlendes Skript test wie den Platzhalter', () => {
  const got = checkPackage({private: true, type: 'module'});
  assert.deepEqual(got, ['test: write a real test script'], `eine package.json ohne scripts ergab ${JSON.stringify(got)}`);
});

{
  "type": "module"
}