webpack-angular-translate/test/translate-jest-matchers.js

Webpack plugin that extracts the translation-ids with the default texts.

import { toMatchSnapshot } from "jest-snapshot";

// webpack uses special errors that store the original error message
// in error.error.message. This serilaizer unwraps the webpack errors.
expect.addSnapshotSerializer({
  test(value) {
    return value instanceof Error && typeof value.error === "object";
  },
  print(value, serialize) {
    return `${value.name}: ${serialize(value.error)}`;
  }
});

// Matches the empty error where we need to remove the absolute paths
expect.addSnapshotSerializer({
  test(value) {
    return value instanceof Error && typeof value.error === "object";
  },
  print(value, serialize) {
    return `${value.name}: ${serialize(value.error.message)}`;
  }
});

expect.extend({
  toHaveEmittedErrorMatchingSnapshot(loaderContext) {
    return toMatchSnapshot.call(this, loaderContext.emitError.mock.calls);
  }
});