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/*****************************************************************************
* Open MCT, Copyright (c) 2014-2021, United States Government
* as represented by the Administrator of the National Aeronautics and Space
* Administration. All rights reserved.
*
* Open MCT is licensed under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0.
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
* Open MCT includes source code licensed under additional open source
* licenses. See the Open Source Licenses file (LICENSES.md) included with
* this source code distribution or the Licensing information page available
* at runtime from the About dialog for additional information.
*****************************************************************************/
/**
* ServiceCompositorSpec. Created by vwoeltje on 11/6/14.
*/
define(
["../../src/register/ServiceCompositor"],
function (ServiceCompositor) {
describe("The service compositor", function () {
var registered,
mockApp,
mockLog,
compositor;
beforeEach(function () {
registered = {};
mockApp = jasmine.createSpyObj("app", ["service"]);
mockLog = jasmine.createSpyObj("$log", ["error", "warn", "info", "debug"]);
mockApp.service.and.callFake(function (name, value) {
var factory = value[value.length - 1];
registered[name] = {
depends: value.slice(0, value.length - 1),
callback: value[value.length - 1]
};
// Track what name it was registered under
factory.registeredName = name;
});
compositor = new ServiceCompositor(mockApp, mockLog);
});
it("allows composite services to be registered", function () {
compositor.registerCompositeServices([
{
type: "provider",
provides: "testService"
}
]);
expect(mockApp.service).toHaveBeenCalled();
});
it("allows composite services to be registered", function () {
// Prepare components that look like resolved extensions
var components, name;
function MyDecorator() {
return {};
}
function MyOtherDecorator() {
return {};
}
function MyProvider() {
return {};
}
function MyOtherProvider() {
return {};
}
function MyAggregator() {
return {};
}
components = [
MyDecorator,
MyProvider,
MyAggregator,
MyOtherDecorator,
MyOtherProvider
];
MyDecorator.type = "decorator";
MyOtherDecorator.type = "decorator";
MyProvider.type = "provider";
MyOtherProvider.type = "provider";
MyAggregator.type = "aggregator";
components.forEach(function (c) {
c.provides = "testService";
});
// Add some test dependencies, to check prepending
MyOtherDecorator.depends = ["someOtherService"];
MyAggregator.depends = ["tests[]"];
// Register!
compositor.registerCompositeServices(components);
expect(mockApp.service).toHaveBeenCalled();
// Verify some interesting spots on dependency graph
expect(registered.testService.depends).toEqual([
MyOtherDecorator.registeredName
]);
expect(registered[MyOtherDecorator.registeredName].depends).toEqual([
"someOtherService",
MyDecorator.registeredName
]);
expect(registered[MyAggregator.registeredName].depends.length).toEqual(2);
// Get the name of the group of providers
name = registered[MyAggregator.registeredName].depends[1];
// ...it should depend on both providers
expect(registered[name].depends).toEqual([
MyProvider.registeredName,
MyOtherProvider.registeredName
]);
});
it("allows registered composite services to be instantiated", function () {
// Prepare components that look like resolved extensions
var components, name;
function MyProvider() {
return {};
}
function MyOtherProvider() {
return {};
}
function MyAggregator() {
return {};
}
components = [MyProvider, MyAggregator, MyOtherProvider];
MyProvider.type = "provider";
MyOtherProvider.type = "provider";
MyAggregator.type = "aggregator";
components.forEach(function (c) {
c.provides = "testService";
});
// Register!
compositor.registerCompositeServices(components);
expect(mockApp.service).toHaveBeenCalled();
// Test service should just be a reflecting dependency;
// it will depend upon (then return) the aggregator.
expect(registered.testService.callback("hello")).toEqual("hello");
// The aggregated provider dependencies should be similar,
// except they should reflect back the array of arguments.
// Get the name of the group of providers
name = registered[MyAggregator.registeredName].depends[0];
// ...it should depend on both providers
expect(registered[name].callback(1, 2, "hello")).toEqual([1, 2, "hello"]);
});
it("warns and skips components with no service type", function () {
// Prepare components that look like resolved extensions
var components;
function MyProvider() {
return {};
}
function MyDecorator() {
return {};
}
function MyAggregator() {
return {};
}
components = [MyProvider, MyAggregator, MyDecorator];
MyProvider.type = "provider";
MyDecorator.type = "decorator";
MyAggregator.type = "aggregator";
// Notably, we don't do
// components.forEach(function (c) { c.provides = "testService"; });
// Try to register...
compositor.registerCompositeServices(components);
// Nothing should have gotten registered
expect(mockApp.service).not.toHaveBeenCalled();
// Should have gotten one warning for each skipped component
expect(mockLog.warn.calls.count()).toEqual(2);
expect(mockLog.info.calls.count()).toEqual(1);
});
it("warns about and skips aggregators with zero providers", function () {
// Prepare components that look like resolved extensions
var components;
function MyAggregator() {
return {};
}
components = [MyAggregator];
MyAggregator.type = "aggregator";
MyAggregator.provides = "testService";
// Try to register...
compositor.registerCompositeServices(components);
// Nothing should have gotten registered
expect(mockApp.service).not.toHaveBeenCalled();
// Should have gotten a warning
expect(mockLog.info).toHaveBeenCalled();
});
it("warns about and skips decorators with nothing to decorate", function () {
// Prepare components that look like resolved extensions
var components;
function MyDecorator() {
return {};
}
components = [MyDecorator];
MyDecorator.type = "decorator";
MyDecorator.provides = "testService";
// Try to register...
compositor.registerCompositeServices(components);
// Nothing should have gotten registered
expect(mockApp.service).not.toHaveBeenCalled();
// Should have gotten a warning
expect(mockLog.warn).toHaveBeenCalled();
});
});
}
);
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