Added test files for SystemInfo.m and OmahaXMLRequest.m.

chrome/installer/mac/app/testing/SystemInfo_test.mm

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#import "chrome/installer/mac/app/SystemInfo.h"
+
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace {
+
+TEST(SystemInfoTest, GetArchReturnsExpectedString) {
+  NSString* arch = [SystemInfo getArch];
+
+  EXPECT_TRUE([arch isEqualToString:@"i486"] ||
+              [arch isEqualToString:@"x86_64h"]);
+}
+
+TEST(SystemInfoTest, GetOSVersionMatchesRegexFormat) {
+  NSString* os_version = [SystemInfo getOSVersion];
+
+  NSRegularExpression* regex = [NSRegularExpression
+      regularExpressionWithPattern:@"^10\\.(0|[1-9][0-9]*)\\.(0|[1-9][0-9]*)$"
+                           options:0
+                             error:nil];
+  NSUInteger matches =
+      [regex numberOfMatchesInString:os_version
+                             options:0
+                               range:NSMakeRange(0, os_version.length)];
+  EXPECT_EQ(1u, matches);
+}
+
+}  // namespace