Add Sign in with Apple Display Name API and unit test

.gitignore

@@ -1,3 +1,7 @@
+#Firebase AuthSample files
+FirebaseAuth/Tests/Sample/AuthSample.xcodeproj/
+FirebaseAuth/Tests/Sample/Application.plist
+
 FirebaseAuth/Tests/Sample/Sample/Application.plist
 FirebaseAuth/Tests/Sample/Sample/AuthCredentials.h
 FirebaseAuth/Tests/Sample/Sample/GoogleService-Info_multi.plist
@@ -20,6 +24,7 @@ FirebaseInstallations/Source/Tests/Resources/GoogleService-Info.plist
 FirebaseMessaging/Tests/IntegrationTests/Resources/GoogleService-Info.plist
 # FirebaseMessaging test app GoogleService-Info.plist
 FirebaseMessaging/Apps/Shared/GoogleService-Info.plist
+
 FirebaseMessaging/Apps/AdvancedSample/SampleWatchWatchKitExtension/GoogleService-Info.plist
 FirebaseMessaging/Apps/AdvancedSample/AppClips/GoogleService-Info.plist
 

.ruby-version

@@ -1 +1 @@
-ruby-2.7
+3.1.2

FirebaseAuth/Sources/AuthProvider/OAuth/FIROAuthCredential.m

@@ -57,6 +57,25 @@ - (instancetype)initWithProviderID:(NSString *)providerID
   return self;
 }
 
+- (instancetype)initWithProviderID:(NSString *)providerID
+                           IDToken:(nullable NSString *)IDToken
+                          rawNonce:(nullable NSString *)rawNonce
+                       accessToken:(nullable NSString *)accessToken
+                            secret:(nullable NSString *)secret
+                       displayName:(nullable NSString *)displayName
+                      pendingToken:(nullable NSString *)pendingToken {
+  self = [super initWithProvider:providerID];
+  if (self) {
+    _IDToken = IDToken;
+    _rawNonce = rawNonce;
+    _accessToken = accessToken;
+    _pendingToken = pendingToken;
+    _secret = secret;
+    _displayName = displayName;
+  }
+  return self;
+}
+
 - (instancetype)initWithProviderID:(NSString *)providerID
                          sessionID:(NSString *)sessionID
             OAuthResponseURLString:(NSString *)OAuthResponseURLString {
@@ -94,6 +113,7 @@ - (void)prepareVerifyAssertionRequest:(FIRVerifyAssertionRequest *)request {
   request.sessionID = _sessionID;
   request.providerOAuthTokenSecret = _secret;
   request.pendingToken = _pendingToken;
+  request.displayName = _displayName;
 }
 
 #pragma mark - NSSecureCoding

FirebaseAuth/Sources/AuthProvider/OAuth/FIROAuthCredential_Internal.h

@@ -57,6 +57,14 @@ NS_ASSUME_NONNULL_BEGIN
                             secret:(nullable NSString *)secret
                       pendingToken:(nullable NSString *)pendingToken NS_DESIGNATED_INITIALIZER;
 
+- (instancetype)initWithProviderID:(NSString *)providerID
+                           IDToken:(nullable NSString *)IDToken
+                          rawNonce:(nullable NSString *)rawNonce
+                       accessToken:(nullable NSString *)accessToken
+                            secret:(nullable NSString *)secret
+                       displayName:(nullable NSString *)displayName
+                      pendingToken:(nullable NSString *)pendingToken NS_DESIGNATED_INITIALIZER;
+
 /** @fn initWithProviderId:sessionID:OAuthResponseURLString:
     @brief Intitializer which takes a sessionID and an OAuthResponseURLString.
     @param providerID The provider ID associated with the credential being created.

FirebaseAuth/Sources/AuthProvider/OAuth/FIROAuthProvider.m

@@ -124,6 +124,20 @@ + (FIROAuthCredential *)credentialWithProviderID:(NSString *)providerID
                                            pendingToken:nil];
 }
 
++ (FIROAuthCredential *)credentialWithProviderID:(NSString *)providerID
+                                         IDToken:(NSString *)IDToken
+                                        rawNonce:(nullable NSString *)rawNonce
+                                     accessToken:(nullable NSString *)accessToken
+                                     displayName:(nonnull NSString *)displayName{
+  return [[FIROAuthCredential alloc] initWithProviderID:providerID
+                                                IDToken:IDToken
+                                               rawNonce:rawNonce
+                                            accessToken:accessToken
+                                                 secret:nil
+                                            displayName:displayName
+                                           pendingToken:nil];
+}
+
 + (instancetype)providerWithProviderID:(NSString *)providerID {
   return [[self alloc] initWithProviderID:providerID auth:[FIRAuth auth]];
 }

FirebaseAuth/Sources/Backend/RPC/FIRVerifyAssertionRequest.h

@@ -96,6 +96,11 @@ NS_ASSUME_NONNULL_BEGIN
  */
 @property(nonatomic, assign) BOOL autoCreate;
 
+/** @property displayName
+    @brief A displayName linked to its provider
+ */
+@property(nonatomic, copy, nullable) NSString *displayName;
+
 /** @fn initWithEndpoint:requestConfiguration:
     @brief Please use initWithProviderID:requestConfifuration instead.
  */

FirebaseAuth/Sources/Public/FirebaseAuth/FIROAuthCredential.h

@@ -43,6 +43,11 @@ NS_SWIFT_NAME(OAuthCredential)
  */
 @property(nonatomic, readonly, nullable) NSString *secret;
 
+/** @property displayName
+    @brief The displayName associated with this credential.
+ */
+@property(nonatomic, readonly, nullable) NSString *displayName;
+
 /** @fn init
     @brief This class is not supposed to be instantiated directly.
  */

FirebaseAuth/Sources/Public/FirebaseAuth/FIROAuthProvider.h

@@ -113,6 +113,23 @@ NS_SWIFT_NAME(OAuthProvider)
 + (FIROAuthCredential *)credentialWithProviderID:(NSString *)providerID
                                          IDToken:(NSString *)IDToken
                                         rawNonce:(nullable NSString *)rawNonce;
+/** @fn credentialWithProviderID:IDToken:rawNonce:accessToken:
+    @brief Creates an `AuthCredential` for that OAuth 2 provider identified by provider ID, ID
+        token, raw nonce, and access token.
+
+    @param providerID The provider ID associated with the Auth credential being created.
+    @param IDToken The IDToken associated with the Auth credential being created.
+    @param rawNonce The raw nonce associated with the Auth credential being created.
+    @param accessToken The access token associated with the Auth credential be created, if
+        available.
+    @param displayName The displayName associated with the Auth credential being created.
+    @return A `AuthCredential` for the specified provider ID, ID token and access token.
+ */
++ (FIROAuthCredential *)credentialWithProviderID:(NSString *)providerID
+                                         IDToken:(NSString *)IDToken
+                                        rawNonce:(nullable NSString *)rawNonce
+                                     accessToken:(nullable NSString *)accessToken
+                                     displayName:(NSString *)displayName;
 
 /** @fn init
     @brief This class is not meant to be initialized.