Share the lifetime implementation between ContainerFixture and ContainerTest

Author: 0xced

src/Testcontainers.Xunit/ContainerFixture.cs

@@ -8,61 +8,14 @@ namespace Testcontainers.Xunit;
 /// <typeparam name="TBuilderEntity">The builder entity.</typeparam>
 /// <typeparam name="TContainerEntity">The container entity.</typeparam>
 [PublicAPI]
-public class ContainerFixture<TBuilderEntity, TContainerEntity> : IAsyncLifetime
+public class ContainerFixture<TBuilderEntity, TContainerEntity>(IMessageSink messageSink) : ContainerLifetime<TBuilderEntity, TContainerEntity>
     where TBuilderEntity : IContainerBuilder<TBuilderEntity, TContainerEntity>, new()
     where TContainerEntity : IContainer
 {
-    private Lazy<TContainerEntity> _container;
-
-    public ContainerFixture(IMessageSink messageSink)
-    {
-        MessageSink = messageSink;
-        _container = new Lazy<TContainerEntity>(() =>
-        {
-            var containerBuilder = new TBuilderEntity().WithLogger(new MessageSinkLogger(MessageSink));
-            return Configure(containerBuilder).Build();
-        });
-    }
-
     /// <summary>
     /// The message sink used for reporting diagnostic messages.
     /// </summary>
-    protected IMessageSink MessageSink { get; }
-
-    /// <summary>
-    /// The container instance.
-    /// </summary>
-    public TContainerEntity Container => _container.Value;
-
-    /// <summary>
-    /// Extension point to further configure the container instance.
-    /// </summary>
-    /// <example>
-    /// <code>
-    /// public class MariaDbRootUserFixture(IMessageSink messageSink) : DbContainerFixture&lt;MariaDbBuilder, MariaDbContainer&gt;(messageSink)
-    /// {
-    ///   public override DbProviderFactory DbProviderFactory => MySqlConnectorFactory.Instance;
-    ///
-    ///   protected override MariaDbBuilder Configure(MariaDbBuilder builder)
-    ///   {
-    ///     return builder.WithUsername("root");
-    ///   }
-    /// }
-    /// </code>
-    /// </example>
-    /// <param name="builder">The container builder.</param>
-    /// <returns>A configured instance of <typeparamref name="TBuilderEntity" />.</returns>
-    protected virtual TBuilderEntity Configure(TBuilderEntity builder) => builder;
-
-    /// <inheritdoc />
-    Task IAsyncLifetime.InitializeAsync() => InitializeAsync();
-
-    /// <inheritdoc cref="IAsyncLifetime.InitializeAsync()" />
-    protected virtual Task InitializeAsync() => Container.StartAsync();
-
-    /// <inheritdoc />
-    Task IAsyncLifetime.DisposeAsync() => DisposeAsync();
+    protected IMessageSink MessageSink { get; } = messageSink;
 
-    /// <inheritdoc cref="IAsyncLifetime.DisposeAsync()" />
-    protected virtual Task DisposeAsync() => Container.DisposeAsync().AsTask();
+    protected override ILogger Logger { get; } = new MessageSinkLogger(messageSink);
 }

src/Testcontainers.Xunit/ContainerLifetime.cs

@@ -0,0 +1,64 @@
+namespace Testcontainers.Xunit;
+
+/// <summary>
+/// Base class managing the lifetime of a container.
+/// </summary>
+/// <typeparam name="TBuilderEntity">The builder entity.</typeparam>
+/// <typeparam name="TContainerEntity">The container entity.</typeparam>
+public abstract class ContainerLifetime<TBuilderEntity, TContainerEntity> : IAsyncLifetime
+    where TBuilderEntity : IContainerBuilder<TBuilderEntity, TContainerEntity>, new()
+    where TContainerEntity : IContainer
+{
+    private readonly Lazy<TContainerEntity> _container;
+
+    /// <summary>
+    /// The logger.
+    /// </summary>
+    protected abstract ILogger Logger { get; }
+
+    protected ContainerLifetime()
+    {
+        _container = new Lazy<TContainerEntity>(() =>
+        {
+            var containerBuilder = new TBuilderEntity().WithLogger(Logger);
+            return Configure(containerBuilder).Build();
+        });
+    }
+
+    /// <summary>
+    /// Extension point to further configure the container instance.
+    /// </summary>
+    /// <example>
+    ///   <code>
+    ///   public class MariaDbRootUserFixture(IMessageSink messageSink) : DbContainerFixture&lt;MariaDbBuilder, MariaDbContainer&gt;(messageSink)
+    ///   {
+    ///     public override DbProviderFactory DbProviderFactory =&gt; MySqlConnectorFactory.Instance;
+    ///     <br />
+    ///     protected override MariaDbBuilder Configure(MariaDbBuilder builder)
+    ///     {
+    ///       return builder.WithUsername("root");
+    ///     }
+    ///   }
+    ///   </code>
+    /// </example>
+    /// <param name="builder">The container builder.</param>
+    /// <returns>A configured instance of <typeparamref name="TBuilderEntity" />.</returns>
+    protected virtual TBuilderEntity Configure(TBuilderEntity builder) => builder;
+
+    /// <summary>
+    /// The container instance.
+    /// </summary>
+    public TContainerEntity Container => _container.Value;
+
+    /// <inheritdoc />
+    Task IAsyncLifetime.InitializeAsync() => InitializeAsync();
+
+    /// <inheritdoc cref="IAsyncLifetime.InitializeAsync()" />
+    protected virtual Task InitializeAsync() => Container.StartAsync();
+
+    /// <inheritdoc />
+    Task IAsyncLifetime.DisposeAsync() => DisposeAsync();
+
+    /// <inheritdoc cref="IAsyncLifetime.DisposeAsync()" />
+    protected virtual Task DisposeAsync() => Container.DisposeAsync().AsTask();
+}

src/Testcontainers.Xunit/ContainerTest.cs

@@ -7,30 +7,16 @@ namespace Testcontainers.Xunit;
 /// <typeparam name="TBuilderEntity">The builder entity.</typeparam>
 /// <typeparam name="TContainerEntity">The container entity.</typeparam>
 [PublicAPI]
-public abstract class ContainerTest<TBuilderEntity, TContainerEntity> : IAsyncLifetime
+public abstract class ContainerTest<TBuilderEntity, TContainerEntity>(ITestOutputHelper testOutputHelper, Func<TBuilderEntity, TBuilderEntity> configure = null) : ContainerLifetime<TBuilderEntity, TContainerEntity>
     where TBuilderEntity : IContainerBuilder<TBuilderEntity, TContainerEntity>, new()
     where TContainerEntity : IContainer
 {
-    protected ContainerTest(ITestOutputHelper testOutputHelper, Func<TBuilderEntity, TBuilderEntity> configure = null)
-    {
-        var builder = new TBuilderEntity().WithLogger(new TestOutputLogger(testOutputHelper));
-        Container = configure == null ? builder.Build() : configure(builder).Build();
-    }
-
     /// <summary>
-    /// The container instance.
+    /// The helper used for writing messages to the test output.
     /// </summary>
-    protected TContainerEntity Container { get; }
-
-    /// <inheritdoc />
-    Task IAsyncLifetime.InitializeAsync() => InitializeAsync();
-
-    /// <inheritdoc cref="IAsyncLifetime.InitializeAsync()" />
-    protected virtual Task InitializeAsync() => Container.StartAsync();
+    protected ITestOutputHelper TestOutputHelper { get; } = testOutputHelper;
 
-    /// <inheritdoc />
-    Task IAsyncLifetime.DisposeAsync() => DisposeAsync();
+    protected override ILogger Logger { get; } = new TestOutputLogger(testOutputHelper);
 
-    /// <inheritdoc cref="IAsyncLifetime.DisposeAsync()" />
-    protected virtual Task DisposeAsync() => Container.DisposeAsync().AsTask();
+    protected override TBuilderEntity Configure(TBuilderEntity builder) => configure != null ? configure(builder) : builder;
 }