refactor tests

Related to: aliencube#319

Author: sikutisa

test/AzureOpenAIProxy.ApiApp.Tests/Extensions/ServiceCollectionExtensionsTests.cs

@@ -2,6 +2,7 @@
 using Azure.Data.Tables;
 using Azure.Security.KeyVault.Secrets;
 
+using AzureOpenAIProxy.ApiApp.Configurations;
 using AzureOpenAIProxy.ApiApp.Extensions;
 
 using FluentAssertions;
@@ -363,4 +364,127 @@ public void Given_AppSettings_When_Invoked_AddTableStorageService_Then_It_Should
         result.Should().NotBeNull()
                     .And.BeOfType<TableServiceClient>();
     }
+
+    [Fact]
+    public void Given_Empty_AzureSettings_When_Added_ToServiceCollection_Then_It_Should_Throw_Exception()
+    {
+        // Arrange
+        var dict = new Dictionary<string, string>()
+        {
+            { "Azure", string.Empty }
+        };
+#pragma warning disable CS8620 // Argument cannot be used for parameter due to differences in the nullability of reference types.
+        var config = new ConfigurationBuilder().AddInMemoryCollection(dict).Build();
+#pragma warning restore CS8620 // Argument cannot be used for parameter due to differences in the nullability of reference types.
+
+        var sc = new ServiceCollection();
+        sc.AddSingleton<IConfiguration>(config);
+
+        sc.AddStorageAccountSettings();
+
+        // Act
+        Action action = () => sc.BuildServiceProvider().GetService<StorageAccountSettings>();
+
+        // Assert
+        action.Should().Throw<InvalidOperationException>();
+    }
+
+    [Fact]
+    public void Given_Empty_StorageAccountSettings_When_Added_ToServiceCollection_Then_It_Should_Throw_Exception()
+    {
+        // Arrange
+        var dict = new Dictionary<string, string>()
+        {
+            { "Azure:StorageAccount", string.Empty }
+        };
+#pragma warning disable CS8620 // Argument cannot be used for parameter due to differences in the nullability of reference types.
+        var config = new ConfigurationBuilder().AddInMemoryCollection(dict).Build();
+#pragma warning restore CS8620 // Argument cannot be used for parameter due to differences in the nullability of reference types.
+
+        var sc = new ServiceCollection();
+        sc.AddSingleton<IConfiguration>(config);
+
+        sc.AddStorageAccountSettings();
+
+        // Act
+        Action action = () => sc.BuildServiceProvider().GetService<StorageAccountSettings>();
+
+        // Assert
+        action.Should().Throw<InvalidOperationException>();
+    }
+
+    [Fact]
+    public void Given_Empty_TableStorageSettings_When_Added_ToServiceCollection_Then_It_Should_Throw_Exception()
+    {
+        // Arrange
+        var dict = new Dictionary<string, string>()
+        {
+            { "Azure:StorageAccount:TableStorage", string.Empty }
+        };
+#pragma warning disable CS8620 // Argument cannot be used for parameter due to differences in the nullability of reference types.
+        var config = new ConfigurationBuilder().AddInMemoryCollection(dict).Build();
+#pragma warning restore CS8620 // Argument cannot be used for parameter due to differences in the nullability of reference types.
+
+        var sc = new ServiceCollection();
+        sc.AddSingleton<IConfiguration>(config);
+
+        sc.AddStorageAccountSettings();
+
+        // Act
+        Action action = () => sc.BuildServiceProvider().GetService<StorageAccountSettings>();
+
+        // Assert
+        action.Should().Throw<InvalidOperationException>();
+    }
+
+    [Theory]
+    [InlineData(default(string))]
+    [InlineData("")]
+    public void Given_NullOrEmpty_TableName_When_Added_ToServiceColleciton_Then_It_Should_Throw_Exception(string? tableName)
+    {
+        // Arrange
+        var dict = new Dictionary<string, string>()
+        {
+            { "Azure:StorageAccount:TableStorage:TableName", tableName }
+        };
+#pragma warning disable CS8620 // Argument cannot be used for parameter due to differences in the nullability of reference types.
+        var config = new ConfigurationBuilder().AddInMemoryCollection(dict).Build();
+#pragma warning restore CS8620 // Argument cannot be used for parameter due to differences in the nullability of reference types.
+
+        var sc = new ServiceCollection();
+        sc.AddSingleton<IConfiguration>(config);
+
+        sc.AddStorageAccountSettings();
+
+        // Act
+        Action action = () => sc.BuildServiceProvider().GetService<StorageAccountSettings>();
+
+        // Assert
+        action.Should().Throw<InvalidOperationException>();
+    }
+
+    [Theory]
+    [InlineData("table-name")]
+    public void Given_Appsettings_When_Added_ToServiceCollection_Then_It_Should_Return_StorageAccountSettings(string tableName)
+    {
+        // Arrange
+        var dict = new Dictionary<string, string>()
+        {
+            { "Azure:StorageAccount:TableStorage:TableName", tableName }
+        };
+#pragma warning disable CS8620 // Argument cannot be used for parameter due to differences in the nullability of reference types.
+        var config = new ConfigurationBuilder().AddInMemoryCollection(dict).Build();
+#pragma warning restore CS8620 // Argument cannot be used for parameter due to differences in the nullability of reference types.
+
+        var sc = new ServiceCollection();
+        sc.AddSingleton<IConfiguration>(config);
+
+        sc.AddStorageAccountSettings();
+
+        // Act
+        var settings = sc.BuildServiceProvider().GetService<StorageAccountSettings>();
+
+        // Assert
+        settings?.TableStorage.TableName.Should().BeEquivalentTo(tableName);
+    }
 }