chore: fix formatting and unit tests

src/processes/DimProcess.Executor/DimProcessTypeExecutor.cs

@@ -52,7 +52,7 @@ public class DimProcessTypeExecutor : IProcessTypeExecutor
         ProcessStepTypeId.SEND_CALLBACK);
 
     private Guid _tenantId;
-    private string _tenantName;
+    private string? _tenantName;
 
     public DimProcessTypeExecutor(
         IDimRepositories dimRepositories,
@@ -82,7 +82,7 @@ public DimProcessTypeExecutor(
 
     public async ValueTask<IProcessTypeExecutor.StepExecutionResult> ExecuteProcessStep(ProcessStepTypeId processStepTypeId, IEnumerable<ProcessStepTypeId> processStepTypeIds, CancellationToken cancellationToken)
     {
-        if (_tenantId == Guid.Empty || _tenantName == default)
+        if (_tenantId == Guid.Empty || _tenantName is null)
         {
             throw new UnexpectedConditionException("tenantId and tenantName should never be empty here");
         }
@@ -135,14 +135,14 @@ public DimProcessTypeExecutor(
         }
         catch (Exception ex) when (ex is not SystemException)
         {
-            (stepStatusId, processMessage, nextStepTypeIds) = ProcessError(ex, processStepTypeId);
+            (stepStatusId, processMessage, nextStepTypeIds) = ProcessError(ex);
             modified = true;
         }
 
         return new IProcessTypeExecutor.StepExecutionResult(modified, stepStatusId, nextStepTypeIds, null, processMessage);
     }
 
-    private static (ProcessStepStatusId StatusId, string? ProcessMessage, IEnumerable<ProcessStepTypeId>? nextSteps) ProcessError(Exception ex, ProcessStepTypeId processStepTypeId)
+    private static (ProcessStepStatusId StatusId, string? ProcessMessage, IEnumerable<ProcessStepTypeId>? nextSteps) ProcessError(Exception ex)
     {
         return ex switch
         {

src/processes/DimProcess.Library/DimProcessHandler.cs

@@ -353,7 +353,7 @@ await _provisioningClient.CreateCloudFoundryEnvironment(saBinding.Url, bindingRe
         {
             throw new ConflictException("SpaceId must not be null.");
         }
-        
+
         await _cfClient.CreateServiceInstanceBindings(tenantName, spaceId.Value, cancellationToken).ConfigureAwait(false);
 
         return new ValueTuple<IEnumerable<ProcessStepTypeId>?, ProcessStepStatusId, bool, string?>(

tests/processes/DimProcess.Library.Tests/DimProcessHandlerTests.cs

@@ -33,6 +33,7 @@
 using DimProcess.Library.DependencyInjection;
 using Microsoft.Extensions.Options;
 using Org.Eclipse.TractusX.Portal.Backend.Framework.ErrorHandling;
+using System.Runtime.CompilerServices;
 using System.Text.Json;
 
 namespace DimProcess.Library.Tests;
@@ -571,28 +572,13 @@ public async Task AddSpaceDeveloperRole_WithValidData_ReturnsExpected()
 
     #region CreateDimServiceInstance
 
-    [Fact]
-    public async Task CreateDimServiceInstance_WithNotExisting_ReturnsExpected()
-    {
-        // Arrange
-        A.CallTo(() => _tenantRepositories.GetSpaceId(_tenantId))
-            .Returns((Guid?)null);
-        async Task Act() => await _sut.CreateDimServiceInstance(_tenantName, _tenantId, CancellationToken.None).ConfigureAwait(false);
-
-        // Act
-        var ex = await Assert.ThrowsAsync<ConflictException>(Act);
-
-        // Assert
-        ex.Message.Should().Be("SpaceId must not be null.");
-    }
-
     [Fact]
     public async Task CreateDimServiceInstance_WithValidData_ReturnsExpected()
     {
         // Arrange
         var spaceId = Guid.NewGuid();
         var servicePlanId = Guid.NewGuid();
-        A.CallTo(() => _tenantRepositories.GetSpaceId(_tenantId))
+        A.CallTo(() => _cfClient.GetSpace(_tenantName, A<CancellationToken>._))
             .Returns(spaceId);
         A.CallTo(() => _cfClient.GetServicePlan("decentralized-identity-management", "standard", A<CancellationToken>._))
             .Returns(servicePlanId);