Assert when initializing FacebookUtils before Parse is initialized.

Author: nlutsenko

ParseFacebookUtils/PFFacebookUtils.m

@@ -10,8 +10,8 @@
 #import "PFFacebookUtils.h"
 
 #import <Bolts/BFExecutor.h>
-
 #import <FBSDKCoreKit/FBSDKCoreKit.h>
+#import <Parse/Parse.h>
 
 #import "PFFacebookPrivateUtilities.h"
 
@@ -48,6 +48,10 @@ + (void)_setAuthenticationProvider:(PFFacebookAuthenticationProvider *)provider
 ///--------------------------------------
 
 + (void)initializeFacebookWithApplicationLaunchOptions:(NSDictionary *)launchOptions {
+    if (![Parse currentConfiguration]) {
+        // TODO: (nlutsenko) Remove this when Parse SDK throws on every access to Parse._currentManager
+        [NSException raise:NSInternalInconsistencyException format:@"PFFacebookUtils must be initialized after initializing Parse."];
+    }
     if (!authenticationProvider_) {
         Class providerClass = nil;
 #if TARGET_OS_IOS

Tests/Unit/FacebookUtilsTests.m

@@ -7,7 +7,7 @@
  * of patent rights can be found in the PATENTS file in the same directory.
  */
 
-@import Parse.PFConstants;
+@import Parse;
 
 #import <OCMock/OCMock.h>
 
@@ -57,9 +57,14 @@ - (void)testInitialize {
 
     XCTAssertThrows([PFFacebookUtils unlinkUserInBackground:userMock]);
 
-    [PFFacebookUtils initializeFacebookWithApplicationLaunchOptions:nil];
-    XCTAssertNotNil([PFFacebookUtils _authenticationProvider]);
+    XCTAssertThrows([PFFacebookUtils initializeFacebookWithApplicationLaunchOptions:nil]);
+
+    id parseMock = PFStrictClassMock([Parse class]);
+    id configurationMock = PFStrictClassMock([ParseClientConfiguration class]);
+    OCMStub(ClassMethod([parseMock currentConfiguration])).andReturn(configurationMock);
 
+    XCTAssertNoThrow([PFFacebookUtils initializeFacebookWithApplicationLaunchOptions:nil]);
+    XCTAssertNotNil([PFFacebookUtils _authenticationProvider]);
     XCTAssertNoThrow([PFFacebookUtils initializeFacebookWithApplicationLaunchOptions:nil]);
 
     OCMVerifyAll(userMock);