Make sure every class is in its own file.
ADD
WalletWasabi.Tests/Helpers/TransactionProcessorExtensions.cs
+using System;
+using System.Collections.Generic;
+using System.Text;
+using WalletWasabi.Blockchain.Keys;
+
+namespace WalletWasabi.Blockchain.TransactionProcessing
+{
+ public static class TransactionProcessorExtensions
+ {
+ public static HdPubKey NewKey(this TransactionProcessor me, string label)
+ {
+ return me.KeyManager.GenerateNewKey(label, KeyState.Clean, true);
+ }
+ }
+}

MODIFY
WalletWasabi.Tests/UnitTests/Transactions/TransactionProcessorTests.cs
WalletWasabi.Tests/UnitTests/Transactions/TransactionProcessorTests.cs
@@ -833,7 +833,6 @@ namespace WalletWasabi.Tests.UnitTests.Transactions
Assert.Equal("A, B, C, D", newPaymentCoin.Clusters.Labels);
}
-
[Fact]
public async Task SameScriptClusterAfterSpendingAsync()
{
@@ -860,7 +859,6 @@ namespace WalletWasabi.Tests.UnitTests.Transactions
Assert.Equal("A, B", coins.First().Clusters.Labels.ToString());
}
-
[Fact]
public async Task SameClusterAfterReplacedByFeeAsync()
{
@@ -1094,12 +1092,4 @@ namespace WalletWasabi.Tests.UnitTests.Transactions
return new OutPoint(RandomUtils.GetUInt256(), 0);
}
}
-
- internal static class TransactionProcessorExtensions
- {
- public static HdPubKey NewKey(this TransactionProcessor me, string label)
- {
- return me.KeyManager.GenerateNewKey(label, KeyState.Clean, true);
- }
- }
}

MODIFY
WalletWasabi.Tests/XunitConfiguration/CollectionDefinitions.cs
WalletWasabi.Tests/XunitConfiguration/CollectionDefinitions.cs
@@ -9,9 +9,4 @@ namespace WalletWasabi.Tests.XunitConfiguration
// to be the place to apply [CollectionDefinition] and all the
// ICollectionFixture<> interfaces.
}
-
- [CollectionDefinition("LiveServerTests collection")]
- public class LiverServerTestsCollections : ICollectionFixture<LiveServerTestsFixture>
- {
- }
}

ADD
WalletWasabi.Tests/XunitConfiguration/LiverServerTestsCollections.cs
+using System;
+using System.Collections.Generic;
+using System.Text;
+using Xunit;
+
+namespace WalletWasabi.Tests.XunitConfiguration
+{
+ [CollectionDefinition("LiveServerTests collection")]
+ public class LiverServerTestsCollections : ICollectionFixture<LiveServerTestsFixture>
+ {
+ }
+}

Make sure every class is in its own file.