DI

Tests/Runtime/Engine/DIContextTests.cs

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+using NUnit.Framework;
+using NUnit.Framework.Interfaces;
+using NUnit.Framework.Internal;
+using RebootKit.Engine.Foundation;
+
+namespace Tests.Runtime.Engine {
+    internal interface ITestService {
+        int Value();
+    }
+
+    internal class TestServiceA : ITestService {
+        public const int k_ReturnValue = 1;
+
+        public int Value() {
+            return k_ReturnValue;
+        }
+    }
+
+    internal class TestServiceB : ITestService {
+        public const int k_ReturnValue = 2;
+
+        public int Value() {
+            return k_ReturnValue;
+        }
+    }
+
+    public class DIContextTests {
+        [Test]
+        public void Single_Bind_And_Resolve() {
+            DIContext context = new();
+            context.Bind<ITestService>(new TestServiceA());
+
+            ITestService testService = context.Resolve<ITestService>();
+            Assert.IsNotNull(testService, "Resolved service is null!");
+
+            Assert.IsTrue(testService.Value() == TestServiceA.k_ReturnValue, "Invalid return value of resolved service");
+        }
+
+        private class TestObject {
+            [Inject]
+            public ITestService Service;
+        }
+
+        [Test]
+        public void Single_Bind_And_Field_Inject() {
+            DIContext context = new();
+            context.Bind<ITestService>(new TestServiceB());
+
+            TestObject obj = new();
+            context.Inject(obj);
+            
+            Assert.IsNotNull(obj.Service, "obj.Service != null");
+            Assert.IsTrue(obj.Service.Value() == TestServiceB.k_ReturnValue);
+        }
+        
+        
+        private class TestObjectMethod {
+            public ITestService Service;
+
+            [Inject]
+            public void Setup(ITestService service) {
+                Service = service;
+            }
+        }
+
+        [Test]
+        public void Single_Bind_And_Method_Inject() {
+            DIContext context = new();
+            context.Bind<ITestService>(new TestServiceA());
+
+            TestObjectMethod obj = new();
+            context.Inject(obj);
+            
+            Assert.IsNotNull(obj.Service, "obj.Service != null");
+            Assert.IsTrue(obj.Service.Value() == TestServiceA.k_ReturnValue);
+        }
+    }
+}