Refactor rtc_unittests into several targets.

webrtc/sdk/BUILD.gn

 # Copyright 2016 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("../build/webrtc.gni")
 if (is_ios) {
@@ skipping 212 matching lines @@
     ]
 
     if (rtc_build_libyuv) {
       deps += [ "$rtc_libyuv_dir" ]
       public_deps = [
         "$rtc_libyuv_dir",
       ]
     }
   }
 
+  if (rtc_include_tests) {
+    rtc_source_set("rtc_sdk_peerconnection_objc_unittests") {
+      testonly = true
+      sources = [
+        "objc/Framework/UnitTests/RTCConfigurationTest.mm",
+        "objc/Framework/UnitTests/RTCDataChannelConfigurationTest.mm",
+        "objc/Framework/UnitTests/RTCIceCandidateTest.mm",
+        "objc/Framework/UnitTests/RTCIceServerTest.mm",
+        "objc/Framework/UnitTests/RTCMediaConstraintsTest.mm",
+        "objc/Framework/UnitTests/RTCSessionDescriptionTest.mm",
+        "objc/Framework/UnitTests/avformatmappertests.mm",
+      ]
+      deps = [
+        ":rtc_sdk_peerconnection_objc",
+        "//third_party/ocmock",
+        "//webrtc/system_wrappers:system_wrappers_default",
+      ]
+
+      # TODO(tkchin): Cleanup this warning.
+      cflags = [ "-Wno-objc-property-no-attribute" ]
+
+      # |-ObjC| flag needed to make sure category method implementations
+      # are included:
+      # https://developer.apple.com/library/mac/qa/qa1490/_index.html
+      ldflags = [ "-ObjC" ]
+
+      defines = [ "GTEST_RELATIVE_PATH" ]
+      if (!build_with_chromium && is_clang) {
+        # Suppress warnings from the Chromium Clang plugin (bugs.webrtc.org/163).
+        suppressed_configs += [ "//build/config/clang:find_bad_constructs" ]
+      }
+    }
+  }
+
   if (is_ios) {
     ios_framework_bundle("rtc_sdk_framework_objc") {
       info_plist = "objc/Framework/Info.plist"
       output_name = "WebRTC"
 
       common_objc_headers = [
         "objc/Framework/Headers/WebRTC/RTCAVFoundationVideoSource.h",
         "objc/Framework/Headers/WebRTC/RTCAudioSource.h",
         "objc/Framework/Headers/WebRTC/RTCAudioTrack.h",
         "objc/Framework/Headers/WebRTC/RTCCameraPreviewView.h",
@@ skipping 115 matching lines @@
       deps += [ "$rtc_libyuv_dir" ]
       public_deps = [
         "$rtc_libyuv_dir",
       ]
     } else {
       # Need to add a directory normally exported by libyuv.
       include_dirs = [ "$rtc_libyuv_dir/include" ]
     }
   }
 }