diff --git a/Examples/UIExplorer/UIExplorerUnitTests/RCTAllocationTests.m b/Examples/UIExplorer/UIExplorerUnitTests/RCTAllocationTests.m
index def2c5246..08b98449c 100644
--- a/Examples/UIExplorer/UIExplorerUnitTests/RCTAllocationTests.m
+++ b/Examples/UIExplorer/UIExplorerUnitTests/RCTAllocationTests.m
@@ -15,19 +15,12 @@
 #import <Foundation/Foundation.h>
 #import <XCTest/XCTest.h>
 
+#import <RCTTest/RCTTestRunner.h>
 #import <React/RCTBridge+Private.h>
 #import <React/RCTBridge.h>
 #import <React/RCTModuleMethod.h>
 #import <React/RCTRootView.h>
 
-#define RUN_RUNLOOP_WHILE(CONDITION) \
-{ \
-  NSDate *timeout = [NSDate dateWithTimeIntervalSinceNow:5]; \
-  while ((CONDITION) && [timeout timeIntervalSinceNow] > 0) { \
-    [[NSRunLoop currentRunLoop] runMode:NSDefaultRunLoopMode beforeDate:[NSDate dateWithTimeIntervalSinceNow:0.1]]; \
-  } \
-}
-
 @interface RCTJavaScriptContext : NSObject
 
 @property (nonatomic, assign, readonly) JSGlobalContextRef ctx;
@@ -131,7 +124,7 @@ RCT_EXPORT_METHOD(test:(__unused NSString *)a
     (void)bridge;
   }
 
-  RUN_RUNLOOP_WHILE(module.isValid)
+  RCT_RUN_RUNLOOP_WHILE(module.isValid)
   XCTAssertFalse(module.isValid, @"AllocationTestModule should have been invalidated by the bridge");
 }
 
@@ -150,7 +143,7 @@ RCT_EXPORT_METHOD(test:(__unused NSString *)a
     (void)bridge;
   }
 
-  RUN_RUNLOOP_WHILE(weakModule)
+  RCT_RUN_RUNLOOP_WHILE(weakModule)
   XCTAssertNil(weakModule, @"AllocationTestModule should have been deallocated");
 }
 
@@ -163,7 +156,7 @@ RCT_EXPORT_METHOD(test:(__unused NSString *)a
     XCTAssertNotNil(method, @"RCTModuleMethod should have been created");
   }
 
-  RUN_RUNLOOP_WHILE(weakMethod)
+  RCT_RUN_RUNLOOP_WHILE(weakMethod)
   XCTAssertNil(weakMethod, @"RCTModuleMethod should have been deallocated");
 }
 
@@ -175,7 +168,7 @@ RCT_EXPORT_METHOD(test:(__unused NSString *)a
   __weak UIView *rootContentView;
   @autoreleasepool {
     RCTRootView *rootView = [[RCTRootView alloc] initWithBridge:bridge moduleName:@"" initialProperties:nil];
-    RUN_RUNLOOP_WHILE(!(rootContentView = [rootView valueForKey:@"contentView"]))
+    RCT_RUN_RUNLOOP_WHILE(!(rootContentView = [rootView valueForKey:@"contentView"]))
     XCTAssertTrue(rootContentView.userInteractionEnabled, @"RCTContentView should be valid");
     (void)rootView;
   }
@@ -197,7 +190,7 @@ RCT_EXPORT_METHOD(test:(__unused NSString *)a
     [bridge reload];
   }
 
-  RUN_RUNLOOP_WHILE(batchedBridge != nil)
+  RCT_RUN_RUNLOOP_WHILE(batchedBridge != nil)
 
   XCTAssertNotNil(bridge, @"RCTBridge should not have been deallocated");
   XCTAssertNil(batchedBridge, @"RCTBatchedBridge should have been deallocated");
@@ -209,7 +202,7 @@ RCT_EXPORT_METHOD(test:(__unused NSString *)a
     bridge = nil;
   }
 
-  RUN_RUNLOOP_WHILE(batchedBridge != nil);
+  RCT_RUN_RUNLOOP_WHILE(batchedBridge != nil);
   XCTAssertNil(batchedBridge);
 }
 
diff --git a/Examples/UIExplorer/UIExplorerUnitTests/RCTBridgeTests.m b/Examples/UIExplorer/UIExplorerUnitTests/RCTBridgeTests.m
index e823994bf..f40331c5c 100644
--- a/Examples/UIExplorer/UIExplorerUnitTests/RCTBridgeTests.m
+++ b/Examples/UIExplorer/UIExplorerUnitTests/RCTBridgeTests.m
@@ -15,24 +15,13 @@
 #import <Foundation/Foundation.h>
 #import <XCTest/XCTest.h>
 
+#import <RCTTest/RCTTestRunner.h>
 #import <React/RCTBridge+Private.h>
 #import <React/RCTBridge.h>
 #import <React/RCTBridgeModule.h>
 #import <React/RCTJavaScriptExecutor.h>
 #import <React/RCTUtils.h>
 
-#define RUN_RUNLOOP_WHILE(CONDITION) \
-{ \
-  NSDate *timeout = [NSDate dateWithTimeIntervalSinceNow:5]; \
-  while ((CONDITION)) { \
-    [[NSRunLoop currentRunLoop] runMode:NSDefaultRunLoopMode beforeDate:[NSDate dateWithTimeIntervalSinceNow:0.1]]; \
-    if ([timeout timeIntervalSinceNow] <= 0) { \
-      XCTFail(@"Runloop timed out before condition was met"); \
-      break; \
-    } \
-  } \
-}
-
 static const NSUInteger kNameIndex = 0;
 static const NSUInteger kConstantsIndex = 1;
 static const NSUInteger kMethodsIndex = 2;
@@ -183,14 +172,14 @@ RCT_EXPORT_MODULE(TestModule)
   _testMethodCalled = NO;
 
   [_bridge invalidate];
-  RUN_RUNLOOP_WHILE(_jsExecutor.isValid);
+  RCT_RUN_RUNLOOP_WHILE(_jsExecutor.isValid);
   _bridge = nil;
 }
 
 - (void)testHookRegistration
 {
   NSString *injectedStuff;
-  RUN_RUNLOOP_WHILE(!(injectedStuff = _jsExecutor.injectedStuff[@"__fbBatchedBridgeConfig"]));
+  RCT_RUN_RUNLOOP_WHILE(!(injectedStuff = _jsExecutor.injectedStuff[@"__fbBatchedBridgeConfig"]));
   XCTAssertNotNil(injectedStuff);
 
   __block NSNumber *testModuleID = nil;
@@ -217,7 +206,7 @@ RCT_EXPORT_MODULE(TestModule)
 - (void)testCallNativeMethod
 {
   NSString *injectedStuff;
-  RUN_RUNLOOP_WHILE(!(injectedStuff = _jsExecutor.injectedStuff[@"__fbBatchedBridgeConfig"]));
+  RCT_RUN_RUNLOOP_WHILE(!(injectedStuff = _jsExecutor.injectedStuff[@"__fbBatchedBridgeConfig"]));
   XCTAssertNotNil(injectedStuff);
 
   __block NSNumber *testModuleID = nil;
@@ -249,7 +238,7 @@ RCT_EXPORT_MODULE(TestModule)
 - (void)testCallUnregisteredModuleMethod
 {
   NSString *injectedStuff;
-  RUN_RUNLOOP_WHILE(!(injectedStuff = _jsExecutor.injectedStuff[@"__fbBatchedBridgeConfig"]));
+  RCT_RUN_RUNLOOP_WHILE(!(injectedStuff = _jsExecutor.injectedStuff[@"__fbBatchedBridgeConfig"]));
   XCTAssertNotNil(injectedStuff);
 
   __block NSNumber *testModuleID = nil;
diff --git a/Examples/UIExplorer/UIExplorerUnitTests/RCTComponentPropsTests.m b/Examples/UIExplorer/UIExplorerUnitTests/RCTComponentPropsTests.m
index b6ab4b769..622c3d99f 100644
--- a/Examples/UIExplorer/UIExplorerUnitTests/RCTComponentPropsTests.m
+++ b/Examples/UIExplorer/UIExplorerUnitTests/RCTComponentPropsTests.m
@@ -14,22 +14,11 @@
 
 #import <XCTest/XCTest.h>
 
+#import <RCTTest/RCTTestRunner.h>
 #import <React/RCTUIManager.h>
 #import <React/RCTView.h>
 #import <React/RCTViewManager.h>
 
-#define RUN_RUNLOOP_WHILE(CONDITION) \
-{ \
-  NSDate *timeout = [NSDate dateWithTimeIntervalSinceNow:5]; \
-  while ((CONDITION)) { \
-    [[NSRunLoop currentRunLoop] runMode:NSDefaultRunLoopMode beforeDate:[NSDate dateWithTimeIntervalSinceNow:0.1]]; \
-    if ([timeout timeIntervalSinceNow] <= 0) { \
-      XCTFail(@"Runloop timed out before condition was met"); \
-      break; \
-    } \
-  } \
-}
-
 @interface RCTUIManager ()
 
 - (void)createView:(NSNumber *)reactTag
@@ -99,7 +88,7 @@ RCT_CUSTOM_VIEW_PROPERTY(customProp, NSString, RCTPropsTestView)
   _bridge = [[RCTBridge alloc] initWithBundleURL:[bundle URLForResource:@"UIExplorerUnitTestsBundle" withExtension:@"js"]
                                   moduleProvider:nil
                                    launchOptions:nil];
-  RUN_RUNLOOP_WHILE(_bridge.isLoading);
+  RCT_RUN_RUNLOOP_WHILE(_bridge.isLoading);
 }
 
 - (void)testSetProps
@@ -123,7 +112,7 @@ RCT_CUSTOM_VIEW_PROPERTY(customProp, NSString, RCTPropsTestView)
     [uiManager setNeedsLayout];
   });
 
-  RUN_RUNLOOP_WHILE(view == nil);
+  RCT_RUN_RUNLOOP_WHILE(view == nil);
 }
 
 - (void)testResetProps
@@ -153,7 +142,7 @@ RCT_CUSTOM_VIEW_PROPERTY(customProp, NSString, RCTPropsTestView)
     [uiManager setNeedsLayout];
   });
 
-  RUN_RUNLOOP_WHILE(view == nil);
+  RCT_RUN_RUNLOOP_WHILE(view == nil);
 }
 
 - (void)testResetBackgroundColor
@@ -177,7 +166,7 @@ RCT_CUSTOM_VIEW_PROPERTY(customProp, NSString, RCTPropsTestView)
     [uiManager setNeedsLayout];
   });
 
-  RUN_RUNLOOP_WHILE(view == nil);
+  RCT_RUN_RUNLOOP_WHILE(view == nil);
 }
 
 @end
diff --git a/Examples/UIExplorer/UIExplorerUnitTests/RCTDevMenuTests.m b/Examples/UIExplorer/UIExplorerUnitTests/RCTDevMenuTests.m
index d86ccf31a..958991913 100644
--- a/Examples/UIExplorer/UIExplorerUnitTests/RCTDevMenuTests.m
+++ b/Examples/UIExplorer/UIExplorerUnitTests/RCTDevMenuTests.m
@@ -14,22 +14,11 @@
 
 #import <XCTest/XCTest.h>
 
+#import <RCTTest/RCTTestRunner.h>
 #import <React/RCTBridge+JavaScriptCore.h>
 #import <React/RCTBridge.h>
 #import <React/RCTDevMenu.h>
 
-#define RUN_RUNLOOP_WHILE(CONDITION) \
-{ \
-  NSDate *timeout = [NSDate dateWithTimeIntervalSinceNow:5]; \
-  while ((CONDITION)) { \
-    [[NSRunLoop currentRunLoop] runMode:NSDefaultRunLoopMode beforeDate:[NSDate dateWithTimeIntervalSinceNow:0.1]]; \
-    if ([timeout timeIntervalSinceNow] <= 0) { \
-      XCTFail(@"Runloop timed out before condition was met"); \
-      break; \
-    } \
-  } \
-}
-
 typedef void(^RCTDevMenuAlertActionHandler)(UIAlertAction *action);
 
 @interface RCTDevMenu ()
@@ -56,7 +45,7 @@ typedef void(^RCTDevMenuAlertActionHandler)(UIAlertAction *action);
                                   moduleProvider:nil
                                    launchOptions:nil];
 
-  RUN_RUNLOOP_WHILE(_bridge.isLoading);
+  RCT_RUN_RUNLOOP_WHILE(_bridge.isLoading);
 }
 
 - (void)testShowCreatingActionSheet
diff --git a/Examples/UIExplorer/UIExplorerUnitTests/RCTGzipTests.m b/Examples/UIExplorer/UIExplorerUnitTests/RCTGzipTests.m
index c41bb35c8..172997f8c 100644
--- a/Examples/UIExplorer/UIExplorerUnitTests/RCTGzipTests.m
+++ b/Examples/UIExplorer/UIExplorerUnitTests/RCTGzipTests.m
@@ -14,17 +14,10 @@
 
 #import <XCTest/XCTest.h>
 
+#import <RCTTest/RCTTestRunner.h>
 #import <React/RCTNetworking.h>
 #import <React/RCTUtils.h>
 
-#define RUN_RUNLOOP_WHILE(CONDITION) \
-{ \
-  NSDate *timeout = [NSDate dateWithTimeIntervalSinceNow:5]; \
-  while ((CONDITION) && [timeout timeIntervalSinceNow] > 0) { \
-    [[NSRunLoop currentRunLoop] runMode:NSDefaultRunLoopMode beforeDate:[NSDate dateWithTimeIntervalSinceNow:0.1]]; \
-  } \
-}
-
 extern BOOL RCTIsGzippedData(NSData *data);
 
 @interface RCTNetworking (Private)
@@ -83,7 +76,7 @@ extern BOOL RCTIsGzippedData(NSData *data);
     request = _request;
   }];
 
-  RUN_RUNLOOP_WHILE(request == nil);
+  RCT_RUN_RUNLOOP_WHILE(request == nil);
 
   XCTAssertNotNil(request);
   XCTAssertNotNil(request.HTTPBody);
diff --git a/Examples/UIExplorer/UIExplorerUnitTests/RCTModuleInitNotificationRaceTests.m b/Examples/UIExplorer/UIExplorerUnitTests/RCTModuleInitNotificationRaceTests.m
index 78d10d83b..256a227f6 100644
--- a/Examples/UIExplorer/UIExplorerUnitTests/RCTModuleInitNotificationRaceTests.m
+++ b/Examples/UIExplorer/UIExplorerUnitTests/RCTModuleInitNotificationRaceTests.m
@@ -15,6 +15,7 @@
 #import <Foundation/Foundation.h>
 #import <XCTest/XCTest.h>
 
+#import <RCTTest/RCTTestRunner.h>
 #import <React/RCTBridge+Private.h>
 #import <React/RCTBridge.h>
 #import <React/RCTBridgeModule.h>
@@ -22,18 +23,6 @@
 #import <React/RCTUIManager.h>
 #import <React/RCTViewManager.h>
 
-#define RUN_RUNLOOP_WHILE(CONDITION) \
-{ \
-  NSDate *timeout = [NSDate dateWithTimeIntervalSinceNow:5]; \
-  while ((CONDITION)) { \
-    [[NSRunLoop currentRunLoop] runMode:NSDefaultRunLoopMode beforeDate:[NSDate dateWithTimeIntervalSinceNow:0.1]]; \
-    if ([timeout timeIntervalSinceNow] <= 0) { \
-      XCTFail(@"Runloop timed out before condition was met"); \
-      break; \
-    } \
-  } \
-}
-
 @interface RCTTestViewManager : RCTViewManager
 @end
 
@@ -127,7 +116,7 @@ RCT_EXPORT_MODULE()
 
 - (void)testViewManagerNotInitializedBeforeSetBridgeModule
 {
-  RUN_RUNLOOP_WHILE(!_notificationObserver.didDetectViewManagerInit);
+  RCT_RUN_RUNLOOP_WHILE(!_notificationObserver.didDetectViewManagerInit);
 }
 
 @end
diff --git a/Examples/UIExplorer/UIExplorerUnitTests/RCTModuleInitTests.m b/Examples/UIExplorer/UIExplorerUnitTests/RCTModuleInitTests.m
index 08ca7a33e..09da21e78 100644
--- a/Examples/UIExplorer/UIExplorerUnitTests/RCTModuleInitTests.m
+++ b/Examples/UIExplorer/UIExplorerUnitTests/RCTModuleInitTests.m
@@ -15,25 +15,13 @@
 #import <Foundation/Foundation.h>
 #import <XCTest/XCTest.h>
 
+#import <RCTTest/RCTTestRunner.h>
 #import <React/RCTBridge+Private.h>
 #import <React/RCTBridge.h>
 #import <React/RCTBridgeModule.h>
 #import <React/RCTJavaScriptExecutor.h>
 #import <React/RCTUtils.h>
 
-#define RUN_RUNLOOP_WHILE(CONDITION) \
-{ \
-  NSDate *timeout = [NSDate dateWithTimeIntervalSinceNow:5]; \
-  while ((CONDITION)) { \
-    [[NSRunLoop currentRunLoop] runMode:NSDefaultRunLoopMode beforeDate:[NSDate dateWithTimeIntervalSinceNow:0.1]]; \
-    if ([timeout timeIntervalSinceNow] <= 0) { \
-      XCTFail(@"Runloop timed out before condition was met"); \
-      break; \
-    } \
-  } \
-}
-
-
 @interface RCTTestInjectedModule : NSObject <RCTBridgeModule>
 @end
 
@@ -205,13 +193,13 @@ RCT_EXPORT_MODULE()
   XCTAssertEqual(_injectedModule, [_bridge moduleForClass:[RCTTestInjectedModule class]]);
   XCTAssertEqual(_injectedModule.bridge, _bridge.batchedBridge);
   XCTAssertNotNil(_injectedModule.methodQueue);
-  RUN_RUNLOOP_WHILE(!_injectedModuleInitNotificationSent);
+  RCT_RUN_RUNLOOP_WHILE(!_injectedModuleInitNotificationSent);
   XCTAssertTrue(_injectedModuleInitNotificationSent);
 }
 
 - (void)testCustomInitModuleInitializedAtBridgeStartup
 {
-  RUN_RUNLOOP_WHILE(!_customInitModuleNotificationSent);
+  RCT_RUN_RUNLOOP_WHILE(!_customInitModuleNotificationSent);
   XCTAssertTrue(_customInitModuleNotificationSent);
   RCTTestCustomInitModule *module = [_bridge moduleForClass:[RCTTestCustomInitModule class]];
   XCTAssertTrue(module.initializedOnMainQueue);
@@ -228,7 +216,7 @@ RCT_EXPORT_MODULE()
     module = [self->_bridge moduleForClass:[RCTTestCustomSetBridgeModule class]];
   });
 
-  RUN_RUNLOOP_WHILE(!module);
+  RCT_RUN_RUNLOOP_WHILE(!module);
   XCTAssertTrue(_customSetBridgeModuleNotificationSent);
   XCTAssertFalse(module.setBridgeOnMainQueue);
   XCTAssertEqual(module.bridge, _bridge.batchedBridge);
@@ -237,10 +225,10 @@ RCT_EXPORT_MODULE()
 
 - (void)testExportConstantsModuleInitializedAtBridgeStartup
 {
-  RUN_RUNLOOP_WHILE(!_exportConstantsModuleNotificationSent);
+  RCT_RUN_RUNLOOP_WHILE(!_exportConstantsModuleNotificationSent);
   XCTAssertTrue(_exportConstantsModuleNotificationSent);
   RCTTestExportConstantsModule *module = [_bridge moduleForClass:[RCTTestExportConstantsModule class]];
-  RUN_RUNLOOP_WHILE(!module.exportedConstants);
+  RCT_RUN_RUNLOOP_WHILE(!module.exportedConstants);
   XCTAssertTrue(module.exportedConstants);
   XCTAssertTrue(module.exportedConstantsOnMainQueue);
   XCTAssertEqual(module.bridge, _bridge.batchedBridge);
@@ -256,7 +244,7 @@ RCT_EXPORT_MODULE()
     module = [self->_bridge moduleForClass:[RCTLazyInitModule class]];
   });
 
-  RUN_RUNLOOP_WHILE(!module);
+  RCT_RUN_RUNLOOP_WHILE(!module);
   XCTAssertTrue(_lazyInitModuleNotificationSent);
   XCTAssertFalse(_lazyInitModuleNotificationSentOnMainQueue);
   XCTAssertNotNil(module);
diff --git a/Libraries/RCTTest/RCTTestRunner.h b/Libraries/RCTTest/RCTTestRunner.h
index 790bcd0c1..d8e909a49 100644
--- a/Libraries/RCTTest/RCTTestRunner.h
+++ b/Libraries/RCTTest/RCTTestRunner.h
@@ -15,6 +15,18 @@
 #define FB_REFERENCE_IMAGE_DIR ""
 #endif
 
+#define RCT_RUN_RUNLOOP_WHILE(CONDITION) \
+{ \
+  NSDate *timeout = [NSDate dateWithTimeIntervalSinceNow:5]; \
+  while ((CONDITION)) { \
+    [[NSRunLoop currentRunLoop] runMode:NSDefaultRunLoopMode beforeDate:[NSDate dateWithTimeIntervalSinceNow:0.1]]; \
+    if ([timeout timeIntervalSinceNow] <= 0) { \
+      XCTFail(@"Runloop timed out before condition was met"); \
+      break; \
+    } \
+  } \
+}
+
 /**
  * Use the RCTInitRunnerForApp macro for typical usage. See FBSnapshotTestCase.h for more information
  * on how to configure the snapshotting system.