@the-standard/jest-extensions/lib/services/foundations/exceptions/jest-exception-extensions-service.test.js

Extensions for jest that provide expect extensions for the-standard libraries

"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
var __generator = (this && this.__generator) || function (thisArg, body) {
    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
    return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
    function verb(n) { return function (v) { return step([n, v]); }; }
    function step(op) {
        if (f) throw new TypeError("Generator is already executing.");
        while (_) try {
            if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
            if (y = 0, t) op = [op[0] & 2, t.value];
            switch (op[0]) {
                case 0: case 1: t = op; break;
                case 4: _.label++; return { value: op[1], done: false };
                case 5: _.label++; y = op[1]; op = [0]; continue;
                case 7: op = _.ops.pop(); _.trys.pop(); continue;
                default:
                    if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
                    if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
                    if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
                    if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
                    if (t[2]) _.ops.pop();
                    _.trys.pop(); continue;
            }
            op = body.call(thisArg, _);
        } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
    }
};
Object.defineProperty(exports, "__esModule", { value: true });
var exceptions_1 = require("@the-standard/exceptions");
var assertion_result_1 = require("../../../models/assertion-result/assertion-result");
var jest_exception_extensions_service_1 = require("./jest-exception-extensions-service");
describe('Jest Exception Extensions Service Test Suite', function () {
    var service = new jest_exception_extensions_service_1.JestExceptionExtensionsService();
    describe('assertActionThrowsExpectedException', function () {
        test('Should return a passing assertion when the action throws the expected exception', function () {
            var action = jest.fn(function () {
                throw new exceptions_1.Exception();
            });
            var expectedException = new exceptions_1.Exception();
            var expectedAssertionResult = new assertion_result_1.AssertionResult('', true);
            var actualAssertionResult = service.assertActionThrowsExpectedException(action, expectedException);
            expect(actualAssertionResult).toEqual(expectedAssertionResult);
            expect(action).toBeCalledTimes(1);
        });
        test('Should return a failing assertion when the action throws an unequivalent exception', function () {
            var action = jest.fn(function () {
                throw new exceptions_1.Exception();
            });
            var expectedException = new exceptions_1.Exception('A message', exceptions_1.Exception.fromError(new Error()), new Map([['key', ['some data']]]));
            expectedException.name = 'RandomException';
            var expectedAssertionResult = new assertion_result_1.AssertionResult([
                'Expected exception name to be "RandomException", was "Exception".',
                'Expected exception message to be "A message", was "".',
                '- Expected map item count to be 1, but found 0.',
                "- Expected to find key 'key'.",
                'Expected an inner exception of type [Error].',
            ].join('\n'), false);
            var actualAssertionResult = service.assertActionThrowsExpectedException(action, expectedException);
            expect(actualAssertionResult).toEqual(expectedAssertionResult);
            expect(action).toBeCalledTimes(1);
        });
        test('Should return a failing assertion when the action does not throw an exception', function () {
            var action = jest.fn(function () { });
            var expectedException = new exceptions_1.Exception();
            var expectedAssertionResult = new assertion_result_1.AssertionResult('Expected action to throw an exception.', false);
            var actualAssertionResult = service.assertActionThrowsExpectedException(action, expectedException);
            expect(actualAssertionResult).toEqual(expectedAssertionResult);
            expect(action).toBeCalledTimes(1);
        });
        test('Should return a failing assertion when the action is not a function', function () {
            var action = 'a value';
            var expectedException = new exceptions_1.Exception();
            var expectedAssertionResult = new assertion_result_1.AssertionResult("Expected 'action' to be a function.", false);
            var actualAssertionResult = service.assertActionThrowsExpectedException(action, expectedException);
            expect(actualAssertionResult).toEqual(expectedAssertionResult);
        });
        test('Should return a failing assertion when the expected exception is not an exception', function () {
            var action = function () {
                throw new exceptions_1.Exception();
            };
            var expectedException = 'a value';
            var expectedAssertionResult = new assertion_result_1.AssertionResult("Expected 'expectedException' to be an Exception.", false);
            var actualAssertionResult = service.assertActionThrowsExpectedException(action, expectedException);
            expect(actualAssertionResult).toEqual(expectedAssertionResult);
        });
        test('Should return a failing assertion when the result from the action is a promise', function () {
            var action = function () {
                return Promise.resolve();
            };
            var expectedException = new exceptions_1.Exception();
            var expectedAssertionResult = new assertion_result_1.AssertionResult("The action passed to 'expect(action).toThrowException(expectedException) returns a promise. Please use the pattern expect(action).toThrowExceptionAsync(expectedException) for async actions.'", false);
            var actualAssertionResult = service.assertActionThrowsExpectedException(action, expectedException);
            expect(actualAssertionResult).toEqual(expectedAssertionResult);
        });
    });
    describe('assertActionThrowsExpectedExceptionAsync', function () {
        test('Should return a passing assertion when the action throws the expected exception', function () { return __awaiter(void 0, void 0, void 0, function () {
            var action, expectedException, expectedAssertionResult, actualAssertionResult;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0:
                        action = jest.fn(function () { return __awaiter(void 0, void 0, void 0, function () {
                            return __generator(this, function (_a) {
                                throw new exceptions_1.Exception();
                            });
                        }); });
                        expectedException = new exceptions_1.Exception();
                        expectedAssertionResult = new assertion_result_1.AssertionResult('', true);
                        return [4 /*yield*/, service.assertActionThrowsExpectedExceptionAsync(action, expectedException)];
                    case 1:
                        actualAssertionResult = _a.sent();
                        expect(actualAssertionResult).toEqual(expectedAssertionResult);
                        expect(action).toBeCalledTimes(1);
                        return [2 /*return*/];
                }
            });
        }); });
        test('Should return a failing assertion when the action throws an unequivalent exception', function () { return __awaiter(void 0, void 0, void 0, function () {
            var action, expectedException, expectedAssertionResult, actualAssertionResult;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0:
                        action = jest.fn(function () { return __awaiter(void 0, void 0, void 0, function () {
                            return __generator(this, function (_a) {
                                throw new exceptions_1.Exception();
                            });
                        }); });
                        expectedException = new exceptions_1.Exception('A message', exceptions_1.Exception.fromError(new Error()), new Map([['key', ['some data']]]));
                        expectedException.name = 'RandomException';
                        expectedAssertionResult = new assertion_result_1.AssertionResult([
                            'Expected exception name to be "RandomException", was "Exception".',
                            'Expected exception message to be "A message", was "".',
                            '- Expected map item count to be 1, but found 0.',
                            "- Expected to find key 'key'.",
                            'Expected an inner exception of type [Error].',
                        ].join('\n'), false);
                        return [4 /*yield*/, service.assertActionThrowsExpectedExceptionAsync(action, expectedException)];
                    case 1:
                        actualAssertionResult = _a.sent();
                        expect(actualAssertionResult).toEqual(expectedAssertionResult);
                        expect(action).toBeCalledTimes(1);
                        return [2 /*return*/];
                }
            });
        }); });
        test('Should return a failing assertion when the action does not throw an exception', function () { return __awaiter(void 0, void 0, void 0, function () {
            var action, expectedException, expectedAssertionResult, actualAssertionResult;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0:
                        action = jest.fn(function () { return __awaiter(void 0, void 0, void 0, function () { return __generator(this, function (_a) {
                            return [2 /*return*/];
                        }); }); });
                        expectedException = new exceptions_1.Exception();
                        expectedAssertionResult = new assertion_result_1.AssertionResult('Expected action to throw an exception.', false);
                        return [4 /*yield*/, service.assertActionThrowsExpectedExceptionAsync(action, expectedException)];
                    case 1:
                        actualAssertionResult = _a.sent();
                        expect(actualAssertionResult).toEqual(expectedAssertionResult);
                        expect(action).toBeCalledTimes(1);
                        return [2 /*return*/];
                }
            });
        }); });
        test('Should return a failing assertion when the action is not a function', function () { return __awaiter(void 0, void 0, void 0, function () {
            var action, expectedException, expectedAssertionResult, actualAssertionResult;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0:
                        action = 'a value';
                        expectedException = new exceptions_1.Exception();
                        expectedAssertionResult = new assertion_result_1.AssertionResult("Expected 'action' to be a function.", false);
                        return [4 /*yield*/, service.assertActionThrowsExpectedExceptionAsync(action, expectedException)];
                    case 1:
                        actualAssertionResult = _a.sent();
                        expect(actualAssertionResult).toEqual(expectedAssertionResult);
                        return [2 /*return*/];
                }
            });
        }); });
        test('Should return a failing assertion when the expected exception is not an exception', function () { return __awaiter(void 0, void 0, void 0, function () {
            var action, expectedException, expectedAssertionResult, actualAssertionResult;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0:
                        action = function () {
                            throw new exceptions_1.Exception();
                        };
                        expectedException = 'a value';
                        expectedAssertionResult = new assertion_result_1.AssertionResult("Expected 'expectedException' to be an Exception.", false);
                        return [4 /*yield*/, service.assertActionThrowsExpectedExceptionAsync(action, expectedException)];
                    case 1:
                        actualAssertionResult = _a.sent();
                        expect(actualAssertionResult).toEqual(expectedAssertionResult);
                        return [2 /*return*/];
                }
            });
        }); });
    });
});