From 8dcef96fd8475fa7d5a0a6fd7b3ca488f051e48f Mon Sep 17 00:00:00 2001
From: Pieter De Baets <pieterdb@fb.com>
Date: Thu, 13 Apr 2017 04:38:13 -0700
Subject: [PATCH] Log to console in RCTTestRunner

Reviewed By: fkgozali

Differential Revision: D4875352

fbshipit-source-id: 68f9caf4f350d34b2fd180ff19353c698bfce452
---
 Libraries/RCTTest/RCTTestModule.m | 3 +++
 Libraries/RCTTest/RCTTestRunner.m | 5 ++++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/Libraries/RCTTest/RCTTestModule.m b/Libraries/RCTTest/RCTTestModule.m
index c5741e93d..dd2424d31 100644
--- a/Libraries/RCTTest/RCTTestModule.m
+++ b/Libraries/RCTTest/RCTTestModule.m
@@ -51,6 +51,9 @@ RCT_EXPORT_METHOD(verifySnapshot:(RCTResponseSenderBlock)callback)
                                                    selector:self->_testSelector
                                                  identifier:identifier
                                                       error:&error];
+    if (!success) {
+      RCTLogInfo(@"Failed to verify snapshot %@ (error: %@)", identifier, error);
+    }
     callback(@[@(success)]);
   }];
 }
diff --git a/Libraries/RCTTest/RCTTestRunner.m b/Libraries/RCTTest/RCTTestRunner.m
index 6f3ed0563..e32af66bc 100644
--- a/Libraries/RCTTest/RCTTestRunner.m
+++ b/Libraries/RCTTest/RCTTestRunner.m
@@ -97,9 +97,12 @@ expectErrorBlock:(BOOL(^)(NSString *error))expectErrorBlock
 {
   @autoreleasepool {
     __block NSString *error = nil;
+    RCTLogFunction defaultLogFunction = RCTGetLogFunction();
     RCTSetLogFunction(^(RCTLogLevel level, RCTLogSource source, NSString *fileName, NSNumber *lineNumber, NSString *message) {
       if (level >= RCTLogLevelError) {
         error = message;
+      } else {
+        defaultLogFunction(level, source, fileName, lineNumber, message);
       }
     });
 
@@ -137,7 +140,7 @@ expectErrorBlock:(BOOL(^)(NSString *error))expectErrorBlock
 
     [rootView removeFromSuperview];
 
-    RCTSetLogFunction(RCTDefaultLogFunction);
+    RCTSetLogFunction(defaultLogFunction);
 
     NSArray<UIView *> *nonLayoutSubviews = [vc.view.subviews filteredArrayUsingPredicate:[NSPredicate predicateWithBlock:^BOOL(id subview, NSDictionary *bindings) {
       return ![NSStringFromClass([subview class]) isEqualToString:@"_UILayoutGuide"];