feature(#6): this commit fixes non-deterministic behaviors when running tests, correctly cleaning up resources

Author: https-richardy

Tests/Integration/Fixtures/MongoDatabaseFixture.cs

@@ -40,8 +40,9 @@ public async Task InitializeAsync()
 
     public async Task CleanDatabaseAsync()
     {
-        var cursor = await Database.ListCollectionNamesAsync();
-        var collections = await cursor.ToListAsync();
+        var collections = await Database
+            .ListCollectionNames()
+            .ToListAsync();
 
         foreach (var collectionName in collections)
         {

Tests/Integration/Fixtures/WebApplicationFixture.cs

@@ -17,6 +17,7 @@ public WebApplicationFixture()
     public async Task InitializeAsync()
     {
         await _databaseFixture.InitializeAsync();
+        await _databaseFixture.CleanDatabaseAsync();
 
         Environment.SetEnvironmentVariable("Settings__Administration__Username", "federation.testing.user");
         Environment.SetEnvironmentVariable("Settings__Administration__Password", "federation.testing.password");
@@ -122,7 +123,6 @@ public async Task DisposeAsync()
         HttpClient.Dispose();
 
         await _factory.DisposeAsync();
-        await _databaseFixture.CleanDatabaseAsync();
         await _databaseFixture.DisposeAsync();
     }
 }