test: add NetworkObject and NetworkBehaviour EditorTests (#607)

Author: TwoTenPvP

com.unity.multiplayer.mlapi/Tests/Editor/NetworkBehaviourTests.cs

@@ -0,0 +1,65 @@
+using System;
+using NUnit.Framework;
+using UnityEngine;
+using Object = UnityEngine.Object;
+
+namespace MLAPI.EditorTests
+{
+    public class NetworkBehaviourTests
+    {
+        [Test]
+        public void HasNetworkObjectTest()
+        {
+            var gameObject = new GameObject(nameof(HasNetworkObjectTest));
+            var networkBehaviour = gameObject.AddComponent<EmptyNetworkBehaviour>();
+
+            Assert.That(networkBehaviour.HasNetworkObject, Is.False);
+
+            var networkObject = gameObject.AddComponent<NetworkObject>();
+
+            Assert.That(networkBehaviour.HasNetworkObject, Is.True);
+
+            Object.DestroyImmediate(networkObject);
+
+            Assert.That(networkBehaviour.HasNetworkObject, Is.False);
+
+            // Cleanup
+            Object.DestroyImmediate(gameObject);
+        }
+
+        [Test]
+        public void AccessNetworkObjectTest()
+        {
+            var gameObject = new GameObject(nameof(AccessNetworkObjectTest));
+            var networkBehaviour = gameObject.AddComponent<EmptyNetworkBehaviour>();
+
+            // TODO: Do we really want to throw here?
+            // Future API change: return null
+            Assert.Throws<NullReferenceException>(() =>
+            {
+                var x = networkBehaviour.NetworkObject;
+            });
+
+            var networkObject = gameObject.AddComponent<NetworkObject>();
+
+            Assert.That(networkBehaviour.NetworkObject, Is.EqualTo(networkObject));
+
+            Object.DestroyImmediate(networkObject);
+
+            // TODO: Do we really want to throw here?
+            // Future API change: return null
+            Assert.Throws<NullReferenceException>(() =>
+            {
+                var x = networkBehaviour.NetworkObject;
+            });
+
+            // Cleanup
+            Object.DestroyImmediate(gameObject);
+        }
+
+        public class EmptyNetworkBehaviour : NetworkBehaviour
+        {
+
+        }
+    }
+}

com.unity.multiplayer.mlapi/Tests/Editor/NetworkBehaviourTests.cs.meta

@@ -0,0 +1,52 @@
+using NUnit.Framework;
+using UnityEngine;
+using UnityEngine.TestTools;
+
+namespace MLAPI.EditorTests
+{
+    public class NetworkObjectTests
+    {
+        [Test]
+        public void GetBehaviourIndexNone()
+        {
+            var gameObject = new GameObject(nameof(GetBehaviourIndexNone));
+            var networkObject = gameObject.AddComponent<NetworkObject>();
+
+            // TODO: Maybe not hardcode message?
+            LogAssert.Expect(LogType.Error, $"[MLAPI] Behaviour index was out of bounds. Did you mess up the order of your {nameof(NetworkBehaviour)}s?");
+            LogAssert.Expect(LogType.Error, $"[MLAPI] Behaviour index was out of bounds. Did you mess up the order of your {nameof(NetworkBehaviour)}s?");
+            LogAssert.Expect(LogType.Error, $"[MLAPI] Behaviour index was out of bounds. Did you mess up the order of your {nameof(NetworkBehaviour)}s?");
+
+            Assert.That(networkObject.GetNetworkBehaviourAtOrderIndex(0), Is.Null);
+            Assert.That(networkObject.GetNetworkBehaviourAtOrderIndex(1), Is.Null);
+            Assert.That(networkObject.GetNetworkBehaviourAtOrderIndex(2), Is.Null);
+
+            // Cleanup
+            Object.DestroyImmediate(gameObject);
+        }
+
+        [Test]
+        public void GetBehaviourIndexOne()
+        {
+            var gameObject = new GameObject(nameof(GetBehaviourIndexOne));
+            var networkObject = gameObject.AddComponent<NetworkObject>();
+            var networkBehaviour = gameObject.AddComponent<EmptyNetworkBehaviour>();
+
+            // TODO: Maybe not hardcode message?
+            LogAssert.Expect(LogType.Error, $"[MLAPI] Behaviour index was out of bounds. Did you mess up the order of your {nameof(NetworkBehaviour)}s?");
+            LogAssert.Expect(LogType.Error, $"[MLAPI] Behaviour index was out of bounds. Did you mess up the order of your {nameof(NetworkBehaviour)}s?");
+
+            Assert.That(networkObject.GetNetworkBehaviourAtOrderIndex(0), Is.EqualTo(networkBehaviour));
+            Assert.That(networkObject.GetNetworkBehaviourAtOrderIndex(1), Is.Null);
+            Assert.That(networkObject.GetNetworkBehaviourAtOrderIndex(2), Is.Null);
+
+            // Cleanup
+            Object.DestroyImmediate(gameObject);
+        }
+
+        public class EmptyNetworkBehaviour : NetworkBehaviour
+        {
+
+        }
+    }
+}