Fix.

node_modules/jest-diff/build/index.js

@@ -0,0 +1,196 @@
+'use strict';
+
+var _prettyFormat = _interopRequireDefault(require('pretty-format'));
+
+var _chalk = _interopRequireDefault(require('chalk'));
+
+var _jestGetType = _interopRequireDefault(require('jest-get-type'));
+
+var _diffStrings = _interopRequireDefault(require('./diffStrings'));
+
+var _constants = require('./constants');
+
+function _interopRequireDefault(obj) {
+  return obj && obj.__esModule ? obj : {default: obj};
+}
+
+var Symbol = global['jest-symbol-do-not-touch'] || global.Symbol;
+
+function _objectSpread(target) {
+  for (var i = 1; i < arguments.length; i++) {
+    var source = arguments[i] != null ? arguments[i] : {};
+    var ownKeys = Object.keys(source);
+    if (typeof Object.getOwnPropertySymbols === 'function') {
+      ownKeys = ownKeys.concat(
+        Object.getOwnPropertySymbols(source).filter(function(sym) {
+          return Object.getOwnPropertyDescriptor(source, sym).enumerable;
+        })
+      );
+    }
+    ownKeys.forEach(function(key) {
+      _defineProperty(target, key, source[key]);
+    });
+  }
+  return target;
+}
+
+function _defineProperty(obj, key, value) {
+  if (key in obj) {
+    Object.defineProperty(obj, key, {
+      value: value,
+      enumerable: true,
+      configurable: true,
+      writable: true
+    });
+  } else {
+    obj[key] = value;
+  }
+  return obj;
+}
+
+const _prettyFormat$plugins = _prettyFormat.default.plugins,
+  AsymmetricMatcher = _prettyFormat$plugins.AsymmetricMatcher,
+  DOMCollection = _prettyFormat$plugins.DOMCollection,
+  DOMElement = _prettyFormat$plugins.DOMElement,
+  Immutable = _prettyFormat$plugins.Immutable,
+  ReactElement = _prettyFormat$plugins.ReactElement,
+  ReactTestComponent = _prettyFormat$plugins.ReactTestComponent;
+const PLUGINS = [
+  ReactTestComponent,
+  ReactElement,
+  DOMElement,
+  DOMCollection,
+  Immutable,
+  AsymmetricMatcher
+];
+const FORMAT_OPTIONS = {
+  plugins: PLUGINS
+};
+
+const FORMAT_OPTIONS_0 = _objectSpread({}, FORMAT_OPTIONS, {
+  indent: 0
+});
+
+const FALLBACK_FORMAT_OPTIONS = {
+  callToJSON: false,
+  maxDepth: 10,
+  plugins: PLUGINS
+};
+
+const FALLBACK_FORMAT_OPTIONS_0 = _objectSpread({}, FALLBACK_FORMAT_OPTIONS, {
+  indent: 0
+}); // Generate a string that will highlight the difference between two values
+// with green and red. (similar to how github does code diffing)
+
+function diff(a, b, options) {
+  if (Object.is(a, b)) {
+    return _constants.NO_DIFF_MESSAGE;
+  }
+
+  const aType = (0, _jestGetType.default)(a);
+  let expectedType = aType;
+  let omitDifference = false;
+
+  if (aType === 'object' && typeof a.asymmetricMatch === 'function') {
+    if (a.$$typeof !== Symbol.for('jest.asymmetricMatcher')) {
+      // Do not know expected type of user-defined asymmetric matcher.
+      return null;
+    }
+
+    if (typeof a.getExpectedType !== 'function') {
+      // For example, expect.anything() matches either null or undefined
+      return null;
+    }
+
+    expectedType = a.getExpectedType(); // Primitive types boolean and number omit difference below.
+    // For example, omit difference for expect.stringMatching(regexp)
+
+    omitDifference = expectedType === 'string';
+  }
+
+  if (expectedType !== (0, _jestGetType.default)(b)) {
+    return (
+      '  Comparing two different types of values.' +
+      ` Expected ${_chalk.default.green(expectedType)} but ` +
+      `received ${_chalk.default.red((0, _jestGetType.default)(b))}.`
+    );
+  }
+
+  if (omitDifference) {
+    return null;
+  }
+
+  switch (aType) {
+    case 'string':
+      return (0, _diffStrings.default)(a, b, options);
+
+    case 'boolean':
+    case 'number':
+      return comparePrimitive(a, b, options);
+
+    case 'map':
+      return compareObjects(sortMap(a), sortMap(b), options);
+
+    case 'set':
+      return compareObjects(sortSet(a), sortSet(b), options);
+
+    default:
+      return compareObjects(a, b, options);
+  }
+}
+
+function comparePrimitive(a, b, options) {
+  return (0, _diffStrings.default)(
+    (0, _prettyFormat.default)(a, FORMAT_OPTIONS),
+    (0, _prettyFormat.default)(b, FORMAT_OPTIONS),
+    options
+  );
+}
+
+function sortMap(map) {
+  return new Map(Array.from(map.entries()).sort());
+}
+
+function sortSet(set) {
+  return new Set(Array.from(set.values()).sort());
+}
+
+function compareObjects(a, b, options) {
+  let diffMessage;
+  let hasThrown = false;
+
+  try {
+    diffMessage = (0, _diffStrings.default)(
+      (0, _prettyFormat.default)(a, FORMAT_OPTIONS_0),
+      (0, _prettyFormat.default)(b, FORMAT_OPTIONS_0),
+      options,
+      {
+        a: (0, _prettyFormat.default)(a, FORMAT_OPTIONS),
+        b: (0, _prettyFormat.default)(b, FORMAT_OPTIONS)
+      }
+    );
+  } catch (e) {
+    hasThrown = true;
+  } // If the comparison yields no results, compare again but this time
+  // without calling `toJSON`. It's also possible that toJSON might throw.
+
+  if (!diffMessage || diffMessage === _constants.NO_DIFF_MESSAGE) {
+    diffMessage = (0, _diffStrings.default)(
+      (0, _prettyFormat.default)(a, FALLBACK_FORMAT_OPTIONS_0),
+      (0, _prettyFormat.default)(b, FALLBACK_FORMAT_OPTIONS_0),
+      options,
+      {
+        a: (0, _prettyFormat.default)(a, FALLBACK_FORMAT_OPTIONS),
+        b: (0, _prettyFormat.default)(b, FALLBACK_FORMAT_OPTIONS)
+      }
+    );
+
+    if (diffMessage !== _constants.NO_DIFF_MESSAGE && !hasThrown) {
+      diffMessage = _constants.SIMILAR_MESSAGE + '\n\n' + diffMessage;
+    }
+  }
+
+  return diffMessage;
+} // eslint-disable-next-line no-redeclare
+
+module.exports = diff;