Fix alphabetical test case ordering

It must be applied with the [TestCaseOrderer] attribute, not by implementing the ITestCaseOrderer interface on the test class.

Changing OrderBy to OrderByDescending should make the Example2 test fail.

Author: 0xced

tests/Testcontainers.Xunit.Tests/AlphabeticalTestCaseOrderer.cs

@@ -0,0 +1,9 @@
+namespace Testcontainers.Xunit.Tests;
+
+public class AlphabeticalTestCaseOrderer : ITestCaseOrderer
+{
+    public IEnumerable<TTestCase> OrderTestCases<TTestCase>(IEnumerable<TTestCase> testCases) where TTestCase : ITestCase
+    {
+        return testCases.OrderBy(testCase => testCase.TestMethod.Method.Name);
+    }
+}

tests/Testcontainers.Xunit.Tests/RedisContainerTest`1.cs

@@ -12,7 +12,8 @@ protected override RedisBuilder Configure(RedisBuilder builder)
 }
 // # --8<-- [end:ConfigureRedisContainer]
 
-public sealed partial class RedisContainerTest : ITestCaseOrderer
+[TestCaseOrderer(ordererTypeName: "Testcontainers.Xunit.Tests.AlphabeticalTestCaseOrderer", ordererAssemblyName: "Testcontainers.Xunit.Tests")]
+public sealed partial class RedisContainerTest
 {
     [Fact]
     public void ImageShouldMatchDefaultModuleImage()
@@ -41,9 +42,4 @@ public async Task Test2()
         // 👇 The created and started container is disposed of after this method (test) completes.
     }
     // # --8<-- [end:RunTests]
-
-    public IEnumerable<TTestCase> OrderTestCases<TTestCase>(IEnumerable<TTestCase> testCases) where TTestCase : ITestCase
-    {
-        return testCases.OrderBy(testCase => testCase.TestMethod.Method.Name);
-    }
 }

tests/Testcontainers.Xunit.Tests/RedisContainerTest`2.cs

@@ -17,7 +17,8 @@ public sealed partial class RedisContainerTest(RedisContainerFixture fixture)
     : IClassFixture<RedisContainerFixture>;
 // # --8<-- [end:InjectContainerFixture]
 
-public sealed partial class RedisContainerTest : ITestCaseOrderer
+[TestCaseOrderer(ordererTypeName: "Testcontainers.Xunit.Tests.AlphabeticalTestCaseOrderer", ordererAssemblyName: "Testcontainers.Xunit.Tests")]
+public sealed partial class RedisContainerTest
 {
     [Fact]
     public void ImageShouldMatchDefaultModuleImage()
@@ -42,9 +43,4 @@ public async Task Test2()
         Assert.Equal("value", redisValue);
     }
     // # --8<-- [end:RunTests]
-
-    public IEnumerable<TTestCase> OrderTestCases<TTestCase>(IEnumerable<TTestCase> testCases) where TTestCase : ITestCase
-    {
-        return testCases.OrderBy(testCase => testCase.TestMethod.Method.Name);
-    }
 }