Add operation phone auth (#309)

* Adds operation to verify PhoneNumber requests

* Improvements and unit tests

* Fixes typo

* Addresses comments

- Removes the FIRAuthOperation class.
- Defines the FIRAuthOperationType as an enum in a class of the same name.
- Passes the FIRAuthOperationType value down to the verifyPhoneNumber RPC where it is translated to a string.

* Fixes unit tests

* Actually fixes the unit tests.

1 files changed, 47 insertions, 0 deletions

diff --git a/Firebase/Auth/Source/FIRAuthOperationType.h b/Firebase/Auth/Source/FIRAuthOperationType.h
new file mode 100644
index 0000000..15d3dd7
--- /dev/null
+++ b/Firebase/Auth/Source/FIRAuthOperationType.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2017 Google
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#import <Foundation/Foundation.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+/**
+    @brief Indicates the type of operation performed for RPCs that support the operation
+        parameter.
+ */
+typedef NS_ENUM(NSInteger, FIRAuthOperationType) {
+  /** Indicates that the operation type is uspecified.
+   */
+  FIRAuthOperationTypeUnspecified = 0,
+
+  /** Indicates that the operation type is sign in or sign up.
+   */
+   FIRAuthOperationTypeSignUpOrSignIn = 1,
+
+  /** Indicates that the operation type is reauthentication.
+   */
+  FIRAuthOperationTypeReauth = 2,
+
+  /** Indicates that the operation type is update.
+   */
+  FIRAuthOperationTypeUpdate = 3,
+
+  /** Indicates that the operation type is link.
+   */
+  FIRAuthOperationTypeLink = 4,
+};
+
+NS_ASSUME_NONNULL_END