diff --git a/Examples/UIExplorer/UIExplorerIntegrationTests/RCTLoggingTests.m b/Examples/UIExplorer/UIExplorerIntegrationTests/RCTLoggingTests.m
new file mode 100644
index 00000000000000..0011b0524cf41f
--- /dev/null
+++ b/Examples/UIExplorer/UIExplorerIntegrationTests/RCTLoggingTests.m
@@ -0,0 +1,109 @@
+/**
+ * The examples provided by Facebook are for non-commercial testing and
+ * evaluation purposes only.
+ *
+ * Facebook reserves all rights not expressly granted.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON INFRINGEMENT. IN NO EVENT SHALL
+ * FACEBOOK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#import <XCTest/XCTest.h>
+
+#import "RCTAssert.h"
+#import "RCTLog.h"
+#import "RCTBridge.h"
+
+@interface RCTLoggingTests : XCTestCase
+
+@end
+
+@implementation RCTLoggingTests
+{
+  RCTBridge *_bridge;
+
+  dispatch_semaphore_t _logSem;
+  RCTLogLevel _lastLogLevel;
+  RCTLogSource _lastLogSource;
+  NSString *_lastLogMessage;
+}
+
+- (void)setUp
+{
+#if RUNNING_ON_CI
+  NSURL *scriptURL = [[NSBundle bundleForClass:[RCTBridge class]] URLForResource:@"main" withExtension:@"jsbundle"];
+  RCTAssert(scriptURL != nil, @"Could not locate main.jsBundle");
+#else
+  NSString *app = @"Examples/UIExplorer/UIExplorerIntegrationTests/js/IntegrationTestsApp";
+  NSURL *scriptURL = [NSURL URLWithString:[NSString stringWithFormat:@"http://localhost:8081/%@.bundle?platform=ios&dev=true", app]];
+#endif
+
+  _bridge = [[RCTBridge alloc] initWithBundleURL:scriptURL moduleProvider:NULL launchOptions:nil];
+  NSDate *date = [NSDate dateWithTimeIntervalSinceNow:5];
+  while (date.timeIntervalSinceNow > 0 && _bridge.loading) {
+    [[NSRunLoop mainRunLoop] runMode:NSDefaultRunLoopMode beforeDate:[NSDate dateWithTimeIntervalSinceNow:0.1]];
+  }
+  XCTAssertFalse(_bridge.loading);
+
+  _logSem = dispatch_semaphore_create(0);
+  RCTSetLogFunction(^(RCTLogLevel level, RCTLogSource source, NSString *fileName, NSNumber *lineNumber, NSString *message) {
+    if (source == RCTLogSourceJavaScript) {
+      _lastLogLevel = level;
+      _lastLogSource = source;
+      _lastLogMessage = message;
+      dispatch_semaphore_signal(_logSem);
+    }
+  });
+}
+
+- (void)tearDown
+{
+  [_bridge invalidate];
+  _bridge = nil;
+
+  RCTSetLogFunction(RCTDefaultLogFunction);
+}
+
+- (void)testLogging
+{
+  [_bridge enqueueJSCall:@"LoggingTestModule.logToConsole" args:@[@"Invoking console.log"]];
+  dispatch_semaphore_wait(_logSem, DISPATCH_TIME_FOREVER);
+
+  XCTAssertEqual(_lastLogLevel, RCTLogLevelInfo);
+  XCTAssertEqual(_lastLogSource, RCTLogSourceJavaScript);
+  XCTAssertEqualObjects(_lastLogMessage, @"Invoking console.log");
+
+  [_bridge enqueueJSCall:@"LoggingTestModule.warning" args:@[@"Generating warning"]];
+  dispatch_semaphore_wait(_logSem, DISPATCH_TIME_FOREVER);
+
+  XCTAssertEqual(_lastLogLevel, RCTLogLevelWarning);
+  XCTAssertEqual(_lastLogSource, RCTLogSourceJavaScript);
+  XCTAssertEqualObjects(_lastLogMessage, @"Warning: Generating warning");
+
+  [_bridge enqueueJSCall:@"LoggingTestModule.invariant" args:@[@"Invariant failed"]];
+  dispatch_semaphore_wait(_logSem, DISPATCH_TIME_FOREVER);
+
+  XCTAssertEqual(_lastLogLevel, RCTLogLevelError);
+  XCTAssertEqual(_lastLogSource, RCTLogSourceJavaScript);
+  XCTAssertEqualObjects(_lastLogMessage, @"Invariant Violation: Invariant failed");
+
+  [_bridge enqueueJSCall:@"LoggingTestModule.logErrorToConsole" args:@[@"Invoking console.error"]];
+  dispatch_semaphore_wait(_logSem, DISPATCH_TIME_FOREVER);
+
+  XCTAssertEqual(_lastLogLevel, RCTLogLevelError);
+  XCTAssertEqual(_lastLogSource, RCTLogSourceJavaScript);
+  XCTAssertEqualObjects(_lastLogMessage, @"Invoking console.error");
+
+  [_bridge enqueueJSCall:@"LoggingTestModule.throwError" args:@[@"Throwing an error"]];
+  dispatch_semaphore_wait(_logSem, DISPATCH_TIME_FOREVER);
+
+  XCTAssertEqual(_lastLogLevel, RCTLogLevelError);
+  XCTAssertEqual(_lastLogSource, RCTLogSourceJavaScript);
+  XCTAssertEqualObjects(_lastLogMessage, @"Throwing an error");
+}
+
+@end
diff --git a/IntegrationTests/IntegrationTestsApp.js b/IntegrationTests/IntegrationTestsApp.js
index 95c2697c17ab13..ce136f7fd6fafc 100644
--- a/IntegrationTests/IntegrationTestsApp.js
+++ b/IntegrationTests/IntegrationTestsApp.js
@@ -36,6 +36,9 @@ TESTS.forEach(
   (test) => AppRegistry.registerComponent(test.displayName, () => test)
 );
 
+// Modules required for integration tests
+require('LoggingTestModule');
+
 var IntegrationTestsApp = React.createClass({
   getInitialState: function() {
     return {
diff --git a/IntegrationTests/LoggingTestModule.js b/IntegrationTests/LoggingTestModule.js
new file mode 100644
index 00000000000000..96e59298d8bebf
--- /dev/null
+++ b/IntegrationTests/LoggingTestModule.js
@@ -0,0 +1,32 @@
+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ *
+ * @providesModule LoggingTestModule
+ */
+'use strict';
+
+var warning = require('warning');
+var invariant = require('invariant');
+
+module.exports = {
+  logToConsole: function(str) {
+    console.log(str);
+  },
+  warning: function(str) {
+    warning(false, str);
+  },
+  invariant: function(str) {
+    invariant(false, str);
+  },
+  logErrorToConsole: function(str) {
+    console.error(str);
+  },
+  throwError: function(str) {
+    throw new Error(str);
+  }
+};
diff --git a/packager/react-packager/src/Resolver/polyfills/console.js b/packager/react-packager/src/Resolver/polyfills/console.js
index e08e8ef7ce7198..5461602b0ed43e 100644
--- a/packager/react-packager/src/Resolver/polyfills/console.js
+++ b/packager/react-packager/src/Resolver/polyfills/console.js
@@ -366,7 +366,6 @@
   };
 
   function setupConsole(global) {
-
     var originalConsole = global.console;
 
     if (!global.nativeLoggingHook) {
@@ -375,16 +374,23 @@
 
     function getNativeLogFunction(level) {
       return function() {
-        var str = Array.prototype.map.call(arguments, function(arg) {
-          return inspect(arg, {depth: 10});
-        }).join(', ');
-        if (str.slice(0, 10) === "'Warning: " && level >= LOG_LEVELS.error) {
+        var str;
+        if (arguments.length === 1 && typeof arguments[0] === 'string') {
+          str = arguments[0];
+        } else {
+          str = Array.prototype.map.call(arguments, function(arg) {
+            return inspect(arg, {depth: 10});
+          }).join(', ');
+        }
+
+        var logLevel = level;
+        if (str.slice(0, 9) === 'Warning: ' && logLevel >= LOG_LEVELS.error) {
           // React warnings use console.error so that a stack trace is shown,
           // but we don't (currently) want these to show a redbox
           // (Note: Logic duplicated in ExceptionsManager.js.)
-          level = LOG_LEVELS.warn;
+          logLevel = LOG_LEVELS.warn;
         }
-        global.nativeLoggingHook(str, level);
+        global.nativeLoggingHook(str, logLevel);
       };
     }