Add config service unit tests (#223)

src/AzureIoTHub.Portal.Server.Tests/Services/ConfigsServicesTests.cs

@@ -0,0 +1,71 @@
+using AzureIoTHub.Portal.Server.Services;
+using Microsoft.Azure.Devices;
+using Moq;
+using NUnit.Framework;
+using System;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace AzureIoTHub.Portal.Server.Tests.Services
+{
+    [TestFixture]
+    public class ConfigsServicesTests
+    {
+        private MockRepository mockRepository;
+
+        private Mock<RegistryManager> mockRegistryManager;
+
+        [SetUp]
+        public void SetUp()
+        {
+            this.mockRepository = new MockRepository(MockBehavior.Strict);
+
+            this.mockRegistryManager = this.mockRepository.Create<RegistryManager>();
+        }
+
+        private ConfigsServices CreateConfigsServices()
+        {
+            return new ConfigsServices(this.mockRegistryManager.Object);
+        }
+
+        [Test]
+        public async Task GetAllConfigs_StateUnderTest_ExpectedBehavior()
+        {
+            // Arrange
+            var configsServices = this.CreateConfigsServices();
+            this.mockRegistryManager.Setup(c => c.GetConfigurationsAsync(It.Is<int>(x => x == 0)))
+                .ReturnsAsync(new[]
+                {
+                    new Configuration("aaa"),
+                    new Configuration("bbb")
+                });
+
+            // Act
+            var result = await configsServices.GetAllConfigs();
+
+            // Assert
+            Assert.IsNotNull(result);
+            Assert.AreEqual(2, result.Count());
+            Assert.AreEqual("aaa", result.First().Id);
+            this.mockRepository.VerifyAll();
+        }
+
+        [Test]
+        public async Task GetConfigItem_StateUnderTest_ExpectedBehavior()
+        {
+            // Arrange
+            var configsServices = this.CreateConfigsServices();
+            string id = "aaa";
+            this.mockRegistryManager.Setup(c => c.GetConfigurationAsync(It.Is<string>(x => x == id)))
+                .ReturnsAsync(new Configuration(id));
+
+            // Act
+            var result = await configsServices.GetConfigItem(id);
+
+            // Assert
+            Assert.IsNotNull(result);
+            Assert.AreEqual(id, result.Id);  
+            this.mockRepository.VerifyAll();
+        }
+    }
+}