Fix NewSchemaPerFixture

I don't know if this is a hacky fix, someone might have to take a look at it

src/Umbraco.Tests.Integration/Packaging/CreatedPackagesRepositoryTests.cs

@@ -20,7 +20,6 @@ using Umbraco.Tests.Testing;
 namespace Umbraco.Tests.Packaging
 {
     [TestFixture]
-    [Explicit] // TODO: find out why tests only run one at at time, the tests get blocked after the first test
     [UmbracoTest(Database = UmbracoTestOptions.Database.NewSchemaPerFixture)]
     public class CreatedPackagesRepositoryTests : UmbracoIntegrationTest
     {

src/Umbraco.Tests.Integration/Services/ConsentServiceTests.cs

@@ -9,7 +9,6 @@ using Umbraco.Tests.Testing;
 namespace Umbraco.Tests.Services
 {
     [TestFixture]
-    [Explicit]
     [UmbracoTest(Database = UmbracoTestOptions.Database.NewSchemaPerFixture)]
     public class ConsentServiceTests : UmbracoIntegrationTest
     {

src/Umbraco.Tests.Integration/Testing/LocalDbTestDatabase.cs

@@ -25,6 +25,14 @@ namespace Umbraco.Tests.Integration.Testing
         public const string InstanceName = "UmbracoTests";
         public const string DatabaseName = "UmbracoTests";
 
+        public bool HasSchema
+        {
+            get
+            {
+                return !(_schemaPool is null) && !_schemaPool.CanAttach;
+            }
+        }
+
         private readonly ILogger _logger;
         private readonly LocalDb _localDb;
         private readonly IUmbracoVersion _umbracoVersion;
@@ -254,6 +262,7 @@ namespace Umbraco.Tests.Integration.Testing
 
         private class DatabasePool
         {
+            public bool CanAttach => _readyQueue.Count > 0;
             private readonly LocalDb _localDb;
             private readonly LocalDb.Instance _instance;
             private readonly string _filesPath;

src/Umbraco.Tests.Integration/Testing/UmbracoIntegrationTest.cs

@@ -365,6 +365,23 @@ namespace Umbraco.Tests.Integration.Testing
 
                     break;
                 case UmbracoTestOptions.Database.NewSchemaPerFixture:
+                    // If we try to AttachSchema before the old schema has been detached
+                    // the process will be blocked since readyQueue remain empty
+                    // Probably because the DB is blocked because it hasn't been detached
+                    // Also if we attach a new schema for every test isn't it just essentially
+                    // the same as NewSchemaPerTest?
+                    if (db.HasSchema)
+                    {
+                        // We must re-configure our current factory since attaching a new LocalDb from the pool changes connection strings
+                        if (!databaseFactory.Configured)
+                        {
+                            databaseFactory.Configure(db.ConnectionString, Constants.DatabaseProviders.SqlServer);
+                        }
+
+                        // re-run the runtime level check
+                        runtimeState.DetermineRuntimeLevel();
+                        return;
+                    }
 
                     // New DB + Schema
                     var newSchemaFixtureDbId = db.AttachSchema();