Added unpacking step

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

Index: chrome/installer/mac/app/testing/Unpacker_test.mm
diff --git a/chrome/installer/mac/app/testing/Unpacker_test.mm b/chrome/installer/mac/app/testing/Unpacker_test.mm
new file mode 100644
index 0000000000000000000000000000000000000000..3f6d6326b7cf85b6de7f1aba1a4b752835401edf
--- /dev/null
+++ b/chrome/installer/mac/app/testing/Unpacker_test.mm
@@ -0,0 +1,110 @@
+// 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/Unpacker.h"
+
+#include "base/base_paths.h"
+#include "base/files/file_path.h"
+#include "base/path_service.h"
+#include "base/strings/sys_string_conversions.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+#import "chrome/installer/mac/app/Downloader.h"
+
+@interface TestDelegate : NSObject<UnpackDelegate>
+@property(nonatomic) BOOL pass;
+@property(nonatomic) dispatch_semaphore_t test_semaphore;
+- (void)fail;
+- (void)succeed;
+- (void)wait;
+@end
+
+@implementation TestDelegate
+@synthesize pass = pass_;
+@synthesize test_semaphore = test_semaphore_;
+
+- (id)init {
+  if ((self = [super init])) {
+    test_semaphore_ = dispatch_semaphore_create(0);
+    pass_ = NO;
+  }
+  return self;
+}
+
+- (void)succeed {
+  pass_ = YES;
+  dispatch_semaphore_signal(test_semaphore_);
+}
+- (void)fail {
+  pass_ = NO;
+  dispatch_semaphore_signal(test_semaphore_);
+}
+- (void)wait {
+  dispatch_semaphore_wait(test_semaphore_, DISPATCH_TIME_FOREVER);
+}
+
+- (void)unpacker:(Unpacker*)unpacker onMountSuccess:(NSString*)tempAppPath {
+  if ([[NSFileManager defaultManager] fileExistsAtPath:tempAppPath]) {
+    [self succeed];
+  } else {
+    [self fail];
+  }
+}
+- (void)unpacker:(Unpacker*)unpacker onMountFailure:(NSError*)error {
+  [self fail];
+}
+
+- (void)unpacker:(Unpacker*)unpacker onUnmountSuccess:(NSString*)mountpath {
+  if (![[NSFileManager defaultManager]
+          fileExistsAtPath:[NSString pathWithComponents:@[
+            mountpath, @"Google Chrome.app"
+          ]]]) {
+    [self succeed];
+  } else {
+    [self fail];
+  }
+}
+- (void)unpacker:(Unpacker*)unpacker onUnmountFailure:(NSError*)error {
+  [self fail];
+}
+
+@end
+
+namespace {
+
+TEST(UnpackerTest, IntegrationTest) {
+  // create objects and semaphore
+  Unpacker* unpack = [[Unpacker alloc] init];
+  TestDelegate* test_delegate = [[TestDelegate alloc] init];
+  unpack.delegate = test_delegate;
+
+  // get a disk image to use to test
+  base::FilePath originalPath;
+  PathService::Get(base::DIR_SOURCE_ROOT, &originalPath);
+  originalPath = originalPath.AppendASCII("chrome/test/data/mac_installer/");
+  base::FilePath copiedPath = base::FilePath(originalPath);
+  NSString* diskImageOriginalPath = base::SysUTF8ToNSString(
+      (originalPath.AppendASCII("test-dmg.dmg")).value());
+  NSString* diskImageCopiedPath = base::SysUTF8ToNSString(
+      (originalPath.AppendASCII("test-dmg2.dmg")).value());
+  [[NSFileManager defaultManager] copyItemAtPath:diskImageOriginalPath
+                                          toPath:diskImageCopiedPath
+                                           error:nil];
+  NSURL* dmgURL = [NSURL fileURLWithPath:diskImageCopiedPath isDirectory:NO];
+  // start mount step
+  [unpack mountDMGFromURL:dmgURL];
+  [test_delegate wait];
+
+  // is the disk image mounted?
+  ASSERT_TRUE([test_delegate pass]);
+
+  // start unmount step
+  [unpack unmountDMG];
+  [test_delegate wait];
+
+  // is the disk image gone?
+  EXPECT_TRUE([test_delegate pass]);
+}
+
+}  // namespace