iOS - Add iceRegatherIntervalRange.

webrtc/sdk/objc/Framework/UnitTests/RTCIntervalRangeTests.mm

+/*
+ *  Copyright 2017 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/rtc_base/gunit.h"
+
+#import "RTCIntervalRange+Private.h"
+#import "WebRTC/RTCIntervalRange.h"
+
+@interface RTCIntervalRangeTest : NSObject
+- (void)testConversionToNativeConfiguration;
+- (void)testNativeConversionToConfiguration;
+@end
+
+@implementation RTCIntervalRangeTest
+
+- (void)testConversionToNativeConfiguration {
+  NSInteger min = 0;
+  NSInteger max = 100;
+  RTCIntervalRange *range = [[RTCIntervalRange alloc] initWithMin:min max:max];
+  EXPECT_EQ(min, range.min);
+  EXPECT_EQ(max, range.max);
+  std::unique_ptr<rtc::IntervalRange> nativeRange = range.nativeIntervalRange;
+  EXPECT_EQ(min, nativeRange->min());
+  EXPECT_EQ(max, nativeRange->max());
+}
+
+- (void)testNativeConversionToConfiguration {
+  NSInteger min = 0;
+  NSInteger max = 100;
+  rtc::IntervalRange nativeRange((int)min, (int)max);
+  RTCIntervalRange *range =
+      [[RTCIntervalRange alloc] initWithNativeIntervalRange:nativeRange];
+  EXPECT_EQ(min, range.min);
+  EXPECT_EQ(max, range.max);
+}
+
+@end
+
+TEST(RTCIntervalRangeTest, NativeConfigurationConversionTest) {
+  @autoreleasepool {
+    RTCIntervalRangeTest *test = [[RTCIntervalRangeTest alloc] init];
+    [test testConversionToNativeConfiguration];
+    [test testNativeConversionToConfiguration];
+  }
+}