@webpack-contrib/defaults/templates/test/validate-options.test.js

Project configuration and boilerplate defaults for webpack projects

import { getCompiler, compile } from './helpers';

describe('validate options', () => {
  const tests = {
    name: {
      success: [1, true, false, 'test', /test/, [], {}, { foo: 'bar' }],
      failure: [],
    },
  };

  function stringifyValue(value) {
    if (
      Array.isArray(value) ||
      (value && typeof value === 'object' && value.constructor === Object)
    ) {
      return JSON.stringify(value);
    }

    return value;
  }

  async function createTestCase(key, value, type) {
    it(`should ${
      type === 'success' ? 'successfully validate' : 'throw an error on'
    } the "${key}" option with "${stringifyValue(value)}" value`, async () => {
      // For loaders
      // const compiler = getCompiler('simple.js', { [key]: value });
      //
      // let stats;
      //
      // try {
      //   stats = await compile(compiler);
      // } finally {
      //   if (type === 'success') {
      //     expect(stats.hasErrors()).toBe(false);
      //   } else if (type === 'failure') {
      //     const {
      //       compilation: { errors },
      //     } = stats;
      //
      //     expect(errors).toHaveLength(1);
      //     expect(() => {
      //       throw new Error(errors[0].error.message);
      //     }).toThrowErrorMatchingSnapshot();
      //   }
      // }
      // For plugins
      // let error;
      //
      // try {
      //   // eslint-disable-next-line no-new
      //   new Plugin({ [key]: value });
      // } catch (errorFromPlugin) {
      //   if (errorFromPlugin.name !== 'ValidationError') {
      //     throw errorFromPlugin;
      //   }
      //
      //   error = errorFromPlugin;
      // } finally {
      //   if (type === 'success') {
      //     expect(error).toBeUndefined();
      //   } else if (type === 'failure') {
      //     expect(() => {
      //       throw error;
      //     }).toThrowErrorMatchingSnapshot();
      //   }
      // }
    });
  }

  for (const [key, values] of Object.entries(tests)) {
    for (const type of Object.keys(values)) {
      for (const value of values[type]) {
        createTestCase(key, value, type);
      }
    }
  }
});