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- 'use strict';
- Object.defineProperty(exports, '__esModule', {
- value: true
- });
- exports.default = void 0;
- var _CallTracker = _interopRequireDefault(require('./CallTracker'));
- var _SpyStrategy = _interopRequireDefault(require('./SpyStrategy'));
- var _createSpy = _interopRequireDefault(require('./createSpy'));
- function _interopRequireDefault(obj) {
- return obj && obj.__esModule ? obj : {default: obj};
- }
- 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 formatErrorMsg = (domain, usage) => {
- const usageDefinition = usage ? '\nUsage: ' + usage : '';
- return msg => domain + ' : ' + msg + usageDefinition;
- };
- function isSpy(putativeSpy) {
- if (!putativeSpy) {
- return false;
- }
- return (
- putativeSpy.and instanceof _SpyStrategy.default &&
- putativeSpy.calls instanceof _CallTracker.default
- );
- }
- const getErrorMsg = formatErrorMsg('<spyOn>', 'spyOn(<object>, <methodName>)');
- class SpyRegistry {
- constructor({currentSpies = () => []} = {}) {
- _defineProperty(this, 'allowRespy', void 0);
- _defineProperty(this, 'spyOn', void 0);
- _defineProperty(this, 'clearSpies', void 0);
- _defineProperty(this, 'respy', void 0);
- _defineProperty(this, '_spyOnProperty', void 0);
- this.allowRespy = function (allow) {
- this.respy = allow;
- };
- this.spyOn = (obj, methodName, accessType) => {
- if (accessType) {
- return this._spyOnProperty(obj, methodName, accessType);
- }
- if (obj === void 0) {
- throw new Error(
- getErrorMsg(
- 'could not find an object to spy upon for ' + methodName + '()'
- )
- );
- }
- if (methodName === void 0) {
- throw new Error(getErrorMsg('No method name supplied'));
- }
- if (obj[methodName] === void 0) {
- throw new Error(getErrorMsg(methodName + '() method does not exist'));
- }
- if (obj[methodName] && isSpy(obj[methodName])) {
- if (this.respy) {
- return obj[methodName];
- } else {
- throw new Error(
- getErrorMsg(methodName + ' has already been spied upon')
- );
- }
- }
- let descriptor;
- try {
- descriptor = Object.getOwnPropertyDescriptor(obj, methodName);
- } catch {
- // IE 8 doesn't support `definePropery` on non-DOM nodes
- }
- if (descriptor && !(descriptor.writable || descriptor.set)) {
- throw new Error(
- getErrorMsg(methodName + ' is not declared writable or has no setter')
- );
- }
- const originalMethod = obj[methodName];
- const spiedMethod = (0, _createSpy.default)(methodName, originalMethod);
- let restoreStrategy;
- if (Object.prototype.hasOwnProperty.call(obj, methodName)) {
- restoreStrategy = function () {
- obj[methodName] = originalMethod;
- };
- } else {
- restoreStrategy = function () {
- if (!delete obj[methodName]) {
- obj[methodName] = originalMethod;
- }
- };
- }
- currentSpies().push({
- restoreObjectToOriginalState: restoreStrategy
- });
- obj[methodName] = spiedMethod;
- return spiedMethod;
- };
- this._spyOnProperty = function (obj, propertyName, accessType = 'get') {
- if (!obj) {
- throw new Error(
- getErrorMsg(
- 'could not find an object to spy upon for ' + propertyName
- )
- );
- }
- if (!propertyName) {
- throw new Error(getErrorMsg('No property name supplied'));
- }
- let descriptor;
- try {
- descriptor = Object.getOwnPropertyDescriptor(obj, propertyName);
- } catch {
- // IE 8 doesn't support `definePropery` on non-DOM nodes
- }
- if (!descriptor) {
- throw new Error(getErrorMsg(propertyName + ' property does not exist'));
- }
- if (!descriptor.configurable) {
- throw new Error(
- getErrorMsg(propertyName + ' is not declared configurable')
- );
- }
- if (!descriptor[accessType]) {
- throw new Error(
- getErrorMsg(
- 'Property ' +
- propertyName +
- ' does not have access type ' +
- accessType
- )
- );
- }
- if (obj[propertyName] && isSpy(obj[propertyName])) {
- if (this.respy) {
- return obj[propertyName];
- } else {
- throw new Error(
- getErrorMsg(propertyName + ' has already been spied upon')
- );
- }
- }
- const originalDescriptor = descriptor;
- const spiedProperty = (0, _createSpy.default)(
- propertyName,
- descriptor[accessType]
- );
- let restoreStrategy;
- if (Object.prototype.hasOwnProperty.call(obj, propertyName)) {
- restoreStrategy = function () {
- Object.defineProperty(obj, propertyName, originalDescriptor);
- };
- } else {
- restoreStrategy = function () {
- delete obj[propertyName];
- };
- }
- currentSpies().push({
- restoreObjectToOriginalState: restoreStrategy
- });
- const spiedDescriptor = {...descriptor, [accessType]: spiedProperty};
- Object.defineProperty(obj, propertyName, spiedDescriptor);
- return spiedProperty;
- };
- this.clearSpies = function () {
- const spies = currentSpies();
- for (let i = spies.length - 1; i >= 0; i--) {
- const spyEntry = spies[i];
- spyEntry.restoreObjectToOriginalState();
- }
- };
- }
- }
- exports.default = SpyRegistry;
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