@triviality/core
Version:
Purely typed service container
210 lines • 9.23 kB
JavaScript
;
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
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 index_1 = require("../index");
var GreetingsFeature = function () { return ({
halloService: function () {
return {
speak: function (name) {
return "Hallo " + name;
},
};
},
byeService: function () {
return {
speak: function (name) {
return "Bye " + name;
},
};
},
halloAndByeService: function () {
var _this = this;
return {
speak: function (name) {
return _this.halloService().speak(name) + ", " + _this.byeService().speak(name);
},
};
},
}); };
it('Override service', function () { return __awaiter(void 0, void 0, void 0, function () {
var MyHalloFeature, container;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
MyHalloFeature = function (_a) {
var halloService = _a.override.halloService;
halloService(function () { return ({
speak: function (_name) {
return '@'; // tumbleweed
},
}); });
};
return [4 /*yield*/, index_1.triviality()
.add(GreetingsFeature)
.add(MyHalloFeature)
.build()];
case 1:
container = _a.sent();
expect(container.halloService.speak('John')).toEqual('@');
expect(container.halloAndByeService.speak('John')).toEqual('@, Bye John');
return [2 /*return*/];
}
});
}); });
var screamSpeakService = function (service) { return ({
speak: function (name) { return service().speak(name) + "!!!"; },
}); };
var ScreamGreetingsFeature = function (_a) {
var override = _a.override;
override.halloService(screamSpeakService);
override.byeService(screamSpeakService);
};
var HiHalloFeature = function (_a) {
var halloService = _a.override.halloService;
return halloService(function (original) { return ({
speak: function (name) { return original().speak(name).replace('Hallo', 'Hi'); },
}); });
};
it('Can be decorated multiple times', function () { return __awaiter(void 0, void 0, void 0, function () {
var container;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, index_1.triviality()
.add(GreetingsFeature)
.add(ScreamGreetingsFeature)
.add(HiHalloFeature)
.build()];
case 1:
container = _a.sent();
expect(container.halloService.speak('John')).toEqual('Hi John!!!');
expect(container.halloAndByeService.speak('John')).toEqual('Hi John!!!, Bye John!!!');
return [2 /*return*/];
}
});
}); });
it('Can be decorated in a different order', function () { return __awaiter(void 0, void 0, void 0, function () {
var container;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, index_1.triviality()
.add(GreetingsFeature)
.add(HiHalloFeature)
.add(ScreamGreetingsFeature)
.build()];
case 1:
container = _a.sent();
expect(container.halloService.speak('John')).toEqual('Hi John!!!');
expect(container.halloAndByeService.speak('John')).toEqual('Hi John!!!, Bye John!!!');
return [2 /*return*/];
}
});
}); });
it('Can alter multiple services', function () { return __awaiter(void 0, void 0, void 0, function () {
var container;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, index_1.triviality()
.add(GreetingsFeature)
.add(HiHalloFeature)
.add(ScreamGreetingsFeature)
.build()];
case 1:
container = _a.sent();
expect(container.byeService.speak('John')).toEqual('Bye John!!!');
expect(container.halloAndByeService.speak('Jane')).toEqual('Hi Jane!!!, Bye Jane!!!');
return [2 /*return*/];
}
});
}); });
it('Cannot add extra services with overrides', function () { return __awaiter(void 0, void 0, void 0, function () {
var MyHalloFeature, container;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
MyHalloFeature = function (_a) {
var override = _a.override;
return override('foobar', function () { return void 0; });
};
return [4 /*yield*/, index_1.triviality()
.add(MyHalloFeature)];
case 1:
container = _a.sent();
return [4 /*yield*/, expect(container.build()).rejects.toThrow()];
case 2:
_a.sent();
return [2 /*return*/];
}
});
}); });
it('If service is override, original should not be called anymore', function () { return __awaiter(void 0, void 0, void 0, function () {
var spy, MyFeature, MyOverideFeature, f;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
spy = jest.fn();
MyFeature = function () { return ({
foo: spy,
}); };
MyOverideFeature = function (_a) {
var foo = _a.override.foo;
return (__assign({}, foo(function () { return 'bar'; })));
};
return [4 /*yield*/, index_1.triviality()
.add(MyFeature)
.add(MyOverideFeature)
.build()];
case 1:
f = (_a.sent()).foo;
expect(f).toEqual('bar');
expect(spy).not.toBeCalled();
return [2 /*return*/];
}
});
}); });
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