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124 lines
4.9 KiB
D
124 lines
4.9 KiB
D
/**
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* Poodinis Dependency Injection Framework
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* Copyright 2014-2016 Mike Bierlee
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* This software is licensed under the terms of the MIT license.
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* The full terms of the license can be found in the LICENSE file.
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*/
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import poodinis;
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import std.exception;
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version(unittest) {
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class TestType {}
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interface TestInterface {}
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class TestImplementation : TestInterface {
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public string someContent = "";
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}
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// Test getting instance without scope defined throws exception
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unittest {
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Registration registration = new Registration(typeid(TestType), null);
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assertThrown!(InstanceCreationException)(registration.getInstance());
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}
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// Test set single instance scope using scope setter
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unittest {
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Registration registration = new Registration(null, typeid(TestType));
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auto chainedRegistration = registration.singleInstance();
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auto instance1 = registration.getInstance();
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auto instance2 = registration.getInstance();
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assert(instance1 is instance2, "Registration with single instance scope did not return the same instance");
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assert(registration is chainedRegistration, "Registration returned by scope setting is not the same as the registration being set");
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}
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// Test set new instance scope using scope setter
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unittest {
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Registration registration = new Registration(null, typeid(TestType));
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auto chainedRegistration = registration.newInstance();
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auto instance1 = registration.getInstance();
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auto instance2 = registration.getInstance();
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assert(instance1 !is instance2, "Registration with new instance scope did not return a different instance");
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assert(registration is chainedRegistration, "Registration returned by scope setting is not the same as the registration being set");
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}
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// Test set existing instance scope using scope setter
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unittest {
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Registration registration = new Registration(null, null);
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auto expectedInstance = new TestType();
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auto chainedRegistration = registration.existingInstance(expectedInstance);
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auto actualInstance = registration.getInstance();
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assert(expectedInstance is expectedInstance, "Registration with existing instance scope did not return the same instance");
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assert(registration is chainedRegistration, "Registration returned by scope setting is not the same as the registration being set");
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}
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// Test linking registrations
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unittest {
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Registration firstRegistration = new Registration(typeid(TestInterface), typeid(TestImplementation)).singleInstance();
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Registration secondRegistration = new Registration(typeid(TestImplementation), typeid(TestImplementation)).singleInstance().linkTo(firstRegistration);
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auto firstInstance = firstRegistration.getInstance();
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auto secondInstance = secondRegistration.getInstance();
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assert(firstInstance is secondInstance);
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}
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// Test instance factory with singletons
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unittest {
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auto factory = new InstanceFactory(typeid(TestImplementation), CreatesSingleton.yes, null);
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auto instanceOne = factory.getInstance();
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auto instanceTwo = factory.getInstance();
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assert(instanceOne !is null, "Created factory instance is null");
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assert(instanceOne is instanceTwo, "Created factory instance is not the same");
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}
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// Test instance factory with new instances
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unittest {
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auto factory = new InstanceFactory(typeid(TestImplementation), CreatesSingleton.no, null);
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auto instanceOne = factory.getInstance();
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auto instanceTwo = factory.getInstance();
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assert(instanceOne !is null, "Created factory instance is null");
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assert(instanceOne !is instanceTwo, "Created factory instance is the same");
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}
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// Test instance factory with existing instances
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unittest {
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auto existingInstance = new TestImplementation();
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auto factory = new InstanceFactory(typeid(TestImplementation), CreatesSingleton.yes, existingInstance);
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auto instanceOne = factory.getInstance();
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auto instanceTwo = factory.getInstance();
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assert(instanceOne is existingInstance, "Created factory instance is not the existing instance");
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assert(instanceTwo is existingInstance, "Created factory instance is not the existing instance when called again");
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}
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// Test instance factory with existing instances when setting singleton flag to "no"
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unittest {
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auto existingInstance = new TestImplementation();
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auto factory = new InstanceFactory(typeid(TestImplementation), CreatesSingleton.no, existingInstance);
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auto instance = factory.getInstance();
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assert(instance is existingInstance, "Created factory instance is not the existing instance");
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}
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// Test creating instance using custom factory method
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unittest {
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Object factoryMethod() {
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auto instance = new TestImplementation();
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instance.someContent = "Ducks!";
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return instance;
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}
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auto factory = new InstanceFactory(null, CreatesSingleton.yes, null, &factoryMethod);
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auto instance = cast(TestImplementation) factory.getInstance();
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assert(instance !is null, "No instance was created by factory or could not be cast to expected type");
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assert(instance.someContent == "Ducks!");
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}
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}
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