✅ Complete_DoesAllowStateToBeReadSubsequently
✅ Complete_DoesNotAllowStateToBeUpdatedSubsequently
✅ Delete_ReturnsOk
✅ ReadState_ReturnsState
✅ UpdateState_UpdatesStateAndRedirects

✅ Create_DependentKeyFoundWithoutUniqueKey_ReturnsCorrectInstance
✅ Create_DependentKeyFoundWithUniqueKey_ReturnsCorrectInstance
✅ Create_MissingKey_ThrowsInvalidOperationException
✅ Create_NoDependentKeysWithoutUniqueKey_ReturnsCorrectInstance
✅ Create_NoDependentKeysWithUniqueKey_ReturnsCorrectInstance
✅ Create_OptionalDependentKeyFound_ReturnsCorrectInstance
✅ Create_OptionalDependentKeyNotFound_ReturnsCorrectInstance
✅ Create_UniqueKeyAlreadyInKeys_ReturnsInstanceWithNewUniqueKey
✅ TryResolve_DependentKeyFoundWithoutUniqueKey_ReturnsCorrectInstance
✅ TryResolve_DependentKeyFoundWithUniqueKey_ReturnsCorrectInstance
✅ TryResolve_MissingDependentRouteDataKey_ReturnsFalse
✅ TryResolve_MissingUniqueKey_ReturnsFalse
✅ TryResolve_NoDependentKeysWithoutUniqueKey_ReturnsCorrectInstance
✅ TryResolve_NoDependentKeysWithUniqueKey_ReturnsCorrectInstance
✅ TryResolve_OptionalDependentKeyFound_ReturnsCorrectInstance
✅ TryResolve_OptionalDependentKeyNotFound_ReturnsCorrectInstance

✅ CreateInstanceAsync_ActionHasNoMetadata_ThrowsInvalidOperationException
✅ CreateInstanceAsync_CreatesInstanceInStateStore
✅ CreateInstanceAsync_InstanceAlreadyExists_ThrowsInvalidOperationException
✅ CreateInstanceAsync_StateTypeIsIncompatible_ThrowsInvalidOperationException
✅ CreateInstanceOfT_StateTypeIsIncompatible_ThrowsInvalidOperationException
✅ GetInstanceAsync_ActionHasNoMetadata_ThrowsInvalidOperationException
✅ GetInstanceAsync_InstanceDoesExist_ReturnsInstance
✅ GetInstanceAsync_InstanceDoesNotExist_ReturnsNull
✅ GetInstanceOfT_StateTypeIsIncompatible_ThrowsInvalidOperationException
✅ GetOrCreateInstanceAsync_ActionHasNoMetadata_ThrowsInvalidOperationException
✅ GetOrCreateInstanceAsync_CreateStateStateTypeIsIncompatible_ThrowsInvalidOperationException
✅ GetOrCreateInstanceAsync_InstanceDoesExist_ReturnsExistingInstance
✅ GetOrCreateInstanceAsync_InstanceDoesNotExist_CreatesInstanceInStateStore
✅ GetOrCreateInstanceFfT_RequestedStateTypeIsIncompatible_ThrowsInvalidOperationException
✅ GetOrCreateInstanceOfT_CreateStateStateTypeIsIncompatible_ThrowsInvalidOperationException
✅ IsCurrentInstance_DifferentInstanceToCurrent_ReturnsFalse
✅ IsCurrentInstance_InstanceMatches_ReturnsTrue
✅ IsCurrentInstance_NoCurrentInstance_ReturnsFalse
✅ ResolveCurrentInstanceAsync_ActionHasNoMetadata_ReturnsNull
✅ ResolveCurrentInstanceAsync_CannotExtractIdForRandomId_ReturnsNull
✅ ResolveCurrentInstanceAsync_CannotExtractIdForRouteValues_ReturnsNull
✅ ResolveCurrentInstanceAsync_InstanceDoesNotExistInStateStore_ReturnsNull
✅ ResolveCurrentInstanceAsync_InstanceExistsForRandomId_ReturnsInstance
✅ ResolveCurrentInstanceAsync_InstanceExistsForRouteValues_ReturnsInstance
✅ ResolveCurrentInstanceAsync_InstanceIsDeleted_ReturnsFalse
✅ ResolveCurrentInstanceAsync_MismatchingJourneyNames_ReturnsNull
✅ ResolveCurrentInstanceAsync_MismatchingStateType_ReturnsNull
✅ ResolveCurrentInstanceAsync_ReturnsSameObjectWithinSameRequest

✅ CompleteAsync_CallsDeleteOnStateProvider
✅ DeleteAsync_CallsDeleteOnStateProvider
✅ UpdateStateAsync_CallsUpdateStateOnStateProvider
✅ UpdateStateAsync_DeletedInstance_ThrowsInvalidOperationException

✅ RequireJourneyInstanceSpecifiedButNoActiveInstance_ReturnsNotFound
✅ RequireJourneyInstanceSpecifiedButNoMetadata_Throws
✅ RequireJourneyInstanceSpecifiedWithActiveInstance_ReturnsOk
✅ RequireJourneyInstanceSpecifiedWithOverridenStatusCodeButNoActiveInstance_ReturnsStatusCode