Fixed release builds on UIExplorer

Libraries/RCTTest/RCTTestModule.h

@@ -10,6 +10,7 @@
 #import <UIKit/UIKit.h>
 
 #import "RCTBridgeModule.h"
+#import "RCTDefines.h"
 
 @class FBSnapshotTestController;
 

Libraries/RCTTest/RCTTestRunner.m

@@ -10,6 +10,7 @@
 #import "RCTTestRunner.h"
 
 #import "FBSnapshotTestController.h"
+#import "RCTDefines.h"
 #import "RCTRedBox.h"
 #import "RCTRootView.h"
 #import "RCTTestModule.h"
@@ -75,6 +76,8 @@
   vc.view = [[UIView alloc] init];
   [vc.view addSubview:rootView]; // Add as subview so it doesn't get resized
 
+#if RCT_DEBUG // Prevents build errors, as RCTRedBox is underfined if RCT_DEBUG=0
+
   NSDate *date = [NSDate dateWithTimeIntervalSinceNow:TIMEOUT_SECONDS];
   NSString *error = [[RCTRedBox sharedInstance] currentErrorMessage];
   while ([date timeIntervalSinceNow] > 0 && ![testModule isDone] && error == nil) {
@@ -95,6 +98,13 @@
   } else {
     RCTAssert([testModule isDone], @"Test didn't finish within %d seconds", TIMEOUT_SECONDS);
   }
+
+#else
+
+  expectErrorBlock(@"RCTRedBox unavailable. Set RCT_DEBUG=1 for testing.");
+
+#endif
+
 }
 
 @end