Update API for Objective-C RTCConfiguration.

webrtc/api/objctests/RTCIceServerTest.mm

 /*
  *  Copyright 2015 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 #import <Foundation/Foundation.h>
 
 #include <vector>
 
 #include "webrtc/base/gunit.h"
 
 #import "webrtc/api/objc/RTCIceServer.h"
 #import "webrtc/api/objc/RTCIceServer+Private.h"
+#import "webrtc/base/objc/NSString+StdString.h"
 
 @interface RTCIceServerTest : NSObject
 - (void)testOneURLServer;
 - (void)testTwoURLServer;
 - (void)testPasswordCredential;
+- (void)testInitFromNativeServer;
 @end
 
 @implementation RTCIceServerTest
 
 - (void)testOneURLServer {
   RTCIceServer *server = [[RTCIceServer alloc] initWithURLStrings:@[
       @"stun:stun1.example.net" ]];
 
   webrtc::PeerConnectionInterface::IceServer iceStruct = server.iceServer;
   EXPECT_EQ((size_t)1, iceStruct.urls.size());
@@ skipping 19 matching lines @@
       initWithURLStrings:@[ @"turn1:turn1.example.net" ]
                 username:@"username"
               credential:@"credential"];
   webrtc::PeerConnectionInterface::IceServer iceStruct = server.iceServer;
   EXPECT_EQ((size_t)1, iceStruct.urls.size());
   EXPECT_EQ("turn1:turn1.example.net", iceStruct.urls.front());
   EXPECT_EQ("username", iceStruct.username);
   EXPECT_EQ("credential", iceStruct.password);
 }
 
+- (void)testInitFromNativeServer {
+  webrtc::PeerConnectionInterface::IceServer nativeServer;
+  nativeServer.username = "username";
+  nativeServer.password = "password";
+  nativeServer.urls.push_back("stun:stun.example.net");
+
+  RTCIceServer *iceServer =
+      [[RTCIceServer alloc] initWithNativeServer:nativeServer];
+  EXPECT_EQ((size_t)1, iceServer.urlStrings.count);
+  EXPECT_EQ("stun:stun.example.net",
+      [NSString stdStringForString:iceServer.urlStrings.firstObject]);
+  EXPECT_EQ("username", [NSString stdStringForString:iceServer.username]);
+  EXPECT_EQ("password", [NSString stdStringForString:iceServer.credential]);
+}
+
 @end
 
 TEST(RTCIceServerTest, OneURLTest) {
   @autoreleasepool {
     RTCIceServerTest *test = [[RTCIceServerTest alloc] init];
     [test testOneURLServer];
   }
 }
 
 TEST(RTCIceServerTest, TwoURLTest) {
   @autoreleasepool {
     RTCIceServerTest *test = [[RTCIceServerTest alloc] init];
     [test testTwoURLServer];
   }
 }
 
 TEST(RTCIceServerTest, PasswordCredentialTest) {
   @autoreleasepool {
     RTCIceServerTest *test = [[RTCIceServerTest alloc] init];
     [test testPasswordCredential];
   }
 }
+
+TEST(RTCIceServerTest, InitFromNativeServerTest) {
+  @autoreleasepool {
+    RTCIceServerTest *test = [[RTCIceServerTest alloc] init];
+    [test testInitFromNativeServer];
+  }
+}