Update API for Objective-C RTCIceCandidate.

webrtc/api/objctests/RTCIceCandidateTest.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 "webrtc/base/gunit.h"
+
+#import "webrtc/api/objc/RTCIceCandidate.h"
+#import "webrtc/api/objc/RTCIceCandidate+Private.h"
+#import "webrtc/base/objc/NSString+StdString.h"
+
+@interface RTCIceCandidateTest : NSObject
+- (void)testCandidate;
+- (void)testInitFromNativeCandidate;
+@end
+
+@implementation RTCIceCandidateTest
+
+- (void)testCandidate {
+  NSString *sdp = @"candidate:4025901590 1 udp 2122265343 "
+                   "fdff:2642:12a6:fe38:c001:beda:fcf9:51aa "
+                   "59052 typ host generation 0";
+
+  RTCIceCandidate *candidate = [[RTCIceCandidate alloc] initWithSdp:sdp
+                                                      sdpMLineIndex:0
+                                                             sdpMid:@"audio"];
+
+  rtc::scoped_ptr<webrtc::IceCandidateInterface> nativeCandidate =
+      candidate.nativeCandidate;
+  EXPECT_EQ("audio", nativeCandidate->sdp_mid());
+  EXPECT_EQ(0, nativeCandidate->sdp_mline_index());
+
+  std::string sdpString;
+  nativeCandidate->ToString(&sdpString);
+  EXPECT_EQ(sdp.stdString, sdpString);
+}
+
+- (void)testInitFromNativeCandidate {
+  std::string sdp("candidate:4025901590 1 udp 2122265343 "
+                  "fdff:2642:12a6:fe38:c001:beda:fcf9:51aa "
+                  "59052 typ host generation 0");
+  webrtc::IceCandidateInterface *nativeCandidate =
+      webrtc::CreateIceCandidate("audio", 0, sdp, nullptr);
+
+  RTCIceCandidate *iceCandidate =
+      [[RTCIceCandidate alloc] initWithNativeCandidate:nativeCandidate];
+  EXPECT_TRUE([@"audio" isEqualToString:iceCandidate.sdpMid]);
+  EXPECT_EQ(0, iceCandidate.sdpMLineIndex);
+
+  EXPECT_EQ(sdp, iceCandidate.sdp.stdString);
+}
+
+@end
+
+TEST(RTCIceCandidateTest, CandidateTest) {
+  @autoreleasepool {
+    RTCIceCandidateTest *test = [[RTCIceCandidateTest alloc] init];
+    [test testCandidate];
+  }
+}
+
+TEST(RTCIceCandidateTest, InitFromCandidateTest) {
+  @autoreleasepool {
+    RTCIceCandidateTest *test = [[RTCIceCandidateTest alloc] init];
+    [test testInitFromNativeCandidate];
+  }
+}