Function createTestingSystem

src/testing/testing-sys.ts:16–92

()

}

export const createTestingSystem = (): TestingSystem => {
  let diskReads = 0;
  let diskWrites = 0;
  const sys = createSystem();

  sys.platformPath = path;

  sys.generateContentHash = (content, length) => {
    let hash = createHash('sha1').update(content).digest('hex').toLowerCase();

    if (typeof length === 'number') {
      hash = hash.slice(0, length);
    }
    return Promise.resolve(hash);
  };

  const wrapRead = (fn: any) => {
    const orgFn = fn;
    return (...args: any[]) => {
      diskReads++;
      return orgFn.apply(orgFn, args);
    };
  };

  const wrapWrite = (fn: any) => {
    const orgFn = fn;
    return (...args: any[]) => {
      diskWrites++;
      return orgFn.apply(orgFn, args);
    };
  };

  sys.access = wrapRead(sys.access);
  sys.accessSync = wrapRead(sys.accessSync);
  sys.homeDir = wrapRead(sys.homeDir);
  sys.readFile = wrapRead(sys.readFile);
  sys.readFileSync = wrapRead(sys.readFileSync);
  sys.readDir = wrapRead(sys.readDir);
  sys.readDirSync = wrapRead(sys.readDirSync);
  sys.stat = wrapRead(sys.stat);
  sys.statSync = wrapRead(sys.statSync);

  sys.copyFile = wrapWrite(sys.copyFile);
  sys.createDir = wrapWrite(sys.createDir);
  sys.createDirSync = wrapWrite(sys.createDirSync);
  sys.removeFile = wrapWrite(sys.removeFile);
  sys.removeFileSync = wrapWrite(sys.removeFileSync);
  sys.writeFile = wrapWrite(sys.writeFile);
  sys.writeFileSync = wrapWrite(sys.writeFileSync);

  sys.getCompilerExecutingPath = () => 'bin/stencil.js';

  Object.defineProperties(sys, {
    diskReads: {
      get() {
        return diskReads;
      },
      set(val: number) {