refactor: streamline resource disposal and improve test file handling in DependencyGraphGeneratorTests and JsonHandlerTests

Author: magic5644

CodeLineCounter.Tests/DependencyGraphGeneratorTests.cs

@@ -22,10 +22,11 @@ public DependencyGraphGeneratorTests()
         [Fact]
         public async Task generate_graph_with_valid_dependencies_creates_dot_file()
         {
+            var testDirectory = _testDirectory;
+            string fileName = "testgraph.dot";
             using (var sw = new StringWriter())
             {
-                var testDirectory = _testDirectory;
-                string fileName = "testgraph.dot";
+
                 // Arrange
                 var dependencies = new List<DependencyRelation>
             {

CodeLineCounter.Tests/JsonHandlerTests.cs

@@ -61,10 +61,15 @@ protected virtual void Dispose(bool disposing)
         {
             if (!_disposed)
             {
-                if (disposing && Directory.Exists(_testDirectory))
+                if (disposing)
                 {
-                    // Dispose managed resources
-                    Directory.Delete(_testDirectory, true);
+                    Task.Delay(100).Wait();
+
+                    if (Directory.Exists(_testDirectory))
+                    {
+                        // Dispose managed resources
+                        Directory.Delete(_testDirectory, true);
+                    }
                 }
 
                 // Dispose unmanaged resources (if any)