Upstream //ios/chrome/browser/snapshots

ios/chrome/browser/ui/snapshots_util_unittest.mm

-// Copyright 2011 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 "ios/chrome/browser/ui/snapshots_util.h"
-
-#import <Foundation/Foundation.h>
-#import <UIKit/UIKit.h>
-
-#include "base/ios/ios_util.h"
-#include "base/mac/foundation_util.h"
-#include "base/path_service.h"
-#include "base/strings/sys_string_conversions.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace {
-
-bool RegexMatchesOneSnapshotPath(NSString* regexString) {
-  NSRegularExpression* regex =
-      [NSRegularExpression regularExpressionWithPattern:regexString
-                                                options:0
-                                                  error:NULL];
-  std::vector<base::FilePath> snapshotsPaths;
-  GetSnapshotsPaths(&snapshotsPaths);
-  int numberOfMatches = 0;
-  for (const base::FilePath& path : snapshotsPaths) {
-    NSString* string =
-        [NSString stringWithCString:path.value().c_str()
-                           encoding:[NSString defaultCStringEncoding]];
-    if ([regex numberOfMatchesInString:string
-                               options:0
-                                 range:NSMakeRange(0, [string length])])
-      numberOfMatches++;
-  }
-  return numberOfMatches == 1;
-}
-
-TEST(SnapshotsUtilTest, TestSnapshotList) {
-  NSString* scaleModifier = @"";
-  CGFloat scale = [UIScreen mainScreen].scale;
-  if (scale > 1) {
-    scaleModifier = [NSString stringWithFormat:@"@%.0fx", scale];
-  }
-  NSString* path = @"Main";
-  if (base::ios::IsRunningOnIOS8OrLater()) {
-    path = base::SysUTF8ToNSString(base::mac::BaseBundleID());
-  }
-  NSString* filename = @"UIApplicationAutomaticSnapshotDefault-LandscapeRight";
-  NSString* regex = [NSString
-      stringWithFormat:@".*/%@/%@%@.png$", path, filename, scaleModifier];
-  EXPECT_FALSE(RegexMatchesOneSnapshotPath(@".*"));
-  EXPECT_FALSE(RegexMatchesOneSnapshotPath(@"foo"));
-  EXPECT_TRUE(RegexMatchesOneSnapshotPath(@".*LandscapeRight.*"));
-  EXPECT_TRUE(RegexMatchesOneSnapshotPath(regex));
-}
-
-}  // anonymous namespace