Test Sut logs error which occurs during FRC is fetching.

NTDCoreDataTableViewControllerTests/NTDCoreDataTableViewControllerTests.m

@@ -72,4 +72,16 @@
     XCTAssertTrue([(NTDFakeCDTVC *)sut loggedFailure]);
 }
 
+- (void)testSutWillLogErrorInFRCsFetch
+{
+    sut = [[NTDFakeCDTVC alloc] init];
+    sut.fetchedResultsController = [[NTDFakeFetchedResultsController alloc] init];
+    
+    [(NTDFakeFetchedResultsController *)sut.fetchedResultsController setFetchWillHaveError:YES];
+    // when
+    [sut performFetch];
+    // then
+    XCTAssertTrue([(NTDFakeCDTVC *)sut loggedError]);
+}
+
 @end

NTDCoreDataTableViewControllerTests/NTDFakeCDTVC.h

@@ -11,5 +11,6 @@
 @interface NTDFakeCDTVC : NTDCoreDataTableViewController
 
 @property (nonatomic) BOOL loggedFailure;
+@property (nonatomic) BOOL loggedError;
 
 @end

NTDCoreDataTableViewControllerTests/NTDFakeFetchedResultsController.h

@@ -11,6 +11,7 @@
 @interface NTDFakeFetchedResultsController : NSFetchedResultsController
 
 @property (nonatomic) BOOL fetchWillSucceed;
+@property (nonatomic) BOOL fetchWillHaveError;
 @property (nonatomic) BOOL performFetchIsCalled;
 
 @end