IndexedDBFactory now ForceCloses databases.
[chromium-blink-merge.git] / content / browser / net / sqlite_persistent_cookie_store_unittest.cc
blob37bd73fb8f3930f5028e847872f523cbe51553ec
1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #include "content/browser/net/sqlite_persistent_cookie_store.h"
7 #include <map>
8 #include <set>
10 #include "base/bind.h"
11 #include "base/callback.h"
12 #include "base/file_util.h"
13 #include "base/files/scoped_temp_dir.h"
14 #include "base/memory/ref_counted.h"
15 #include "base/message_loop/message_loop.h"
16 #include "base/sequenced_task_runner.h"
17 #include "base/stl_util.h"
18 #include "base/synchronization/waitable_event.h"
19 #include "base/test/sequenced_worker_pool_owner.h"
20 #include "base/threading/sequenced_worker_pool.h"
21 #include "base/time/time.h"
22 #include "content/public/browser/cookie_crypto_delegate.h"
23 #include "content/public/browser/cookie_store_factory.h"
24 #include "crypto/encryptor.h"
25 #include "crypto/symmetric_key.h"
26 #include "net/cookies/canonical_cookie.h"
27 #include "net/cookies/cookie_constants.h"
28 #include "sql/connection.h"
29 #include "sql/meta_table.h"
30 #include "sql/statement.h"
31 #include "testing/gtest/include/gtest/gtest.h"
32 #include "url/gurl.h"
34 namespace content {
36 namespace {
38 const base::FilePath::CharType kCookieFilename[] = FILE_PATH_LITERAL("Cookies");
40 class CookieCryptor : public content::CookieCryptoDelegate {
41 public:
42 CookieCryptor();
43 virtual bool EncryptString(const std::string& plaintext,
44 std::string* ciphertext) OVERRIDE;
45 virtual bool DecryptString(const std::string& ciphertext,
46 std::string* plaintext) OVERRIDE;
48 private:
49 scoped_ptr<crypto::SymmetricKey> key_;
50 crypto::Encryptor encryptor_;
53 CookieCryptor::CookieCryptor() : key_(
54 crypto::SymmetricKey::DeriveKeyFromPassword(
55 crypto::SymmetricKey::AES, "password", "saltiest", 1000, 256)) {
56 std::string iv("the iv: 16 bytes");
57 encryptor_.Init(key_.get(), crypto::Encryptor::CBC, iv);
60 bool CookieCryptor::EncryptString(const std::string& plaintext,
61 std::string* ciphertext) {
62 return encryptor_.Encrypt(plaintext, ciphertext);
65 bool CookieCryptor::DecryptString(const std::string& ciphertext,
66 std::string* plaintext) {
67 return encryptor_.Decrypt(ciphertext, plaintext);
70 } // namespace
72 typedef std::vector<net::CanonicalCookie*> CanonicalCookieVector;
74 class SQLitePersistentCookieStoreTest : public testing::Test {
75 public:
76 SQLitePersistentCookieStoreTest()
77 : pool_owner_(new base::SequencedWorkerPoolOwner(3, "Background Pool")),
78 loaded_event_(false, false),
79 key_loaded_event_(false, false),
80 db_thread_event_(false, false) {
83 void OnLoaded(const CanonicalCookieVector& cookies) {
84 cookies_ = cookies;
85 loaded_event_.Signal();
88 void OnKeyLoaded(const CanonicalCookieVector& cookies) {
89 cookies_ = cookies;
90 key_loaded_event_.Signal();
93 void Load(CanonicalCookieVector* cookies) {
94 EXPECT_FALSE(loaded_event_.IsSignaled());
95 store_->Load(base::Bind(&SQLitePersistentCookieStoreTest::OnLoaded,
96 base::Unretained(this)));
97 loaded_event_.Wait();
98 *cookies = cookies_;
101 void Flush() {
102 base::WaitableEvent event(false, false);
103 store_->Flush(base::Bind(&base::WaitableEvent::Signal,
104 base::Unretained(&event)));
105 event.Wait();
108 scoped_refptr<base::SequencedTaskRunner> background_task_runner() {
109 return pool_owner_->pool()->GetSequencedTaskRunner(
110 pool_owner_->pool()->GetNamedSequenceToken("background"));
113 scoped_refptr<base::SequencedTaskRunner> client_task_runner() {
114 return pool_owner_->pool()->GetSequencedTaskRunner(
115 pool_owner_->pool()->GetNamedSequenceToken("client"));
118 void DestroyStore() {
119 store_ = NULL;
120 // Make sure we wait until the destructor has run by shutting down the pool
121 // resetting the owner (whose destructor blocks on the pool completion).
122 pool_owner_->pool()->Shutdown();
123 // Create a new pool for the few tests that create multiple stores. In other
124 // cases this is wasted but harmless.
125 pool_owner_.reset(new base::SequencedWorkerPoolOwner(3, "Background Pool"));
128 void CreateAndLoad(bool crypt_cookies,
129 bool restore_old_session_cookies,
130 CanonicalCookieVector* cookies) {
131 store_ = new SQLitePersistentCookieStore(
132 temp_dir_.path().Append(kCookieFilename),
133 client_task_runner(),
134 background_task_runner(),
135 restore_old_session_cookies,
136 NULL,
137 crypt_cookies ?
138 scoped_ptr<content::CookieCryptoDelegate>(new CookieCryptor) :
139 scoped_ptr<content::CookieCryptoDelegate>());
140 Load(cookies);
143 void InitializeStore(bool crypt, bool restore_old_session_cookies) {
144 CanonicalCookieVector cookies;
145 CreateAndLoad(crypt, restore_old_session_cookies, &cookies);
146 EXPECT_EQ(0U, cookies.size());
149 // We have to create this method to wrap WaitableEvent::Wait, since we cannot
150 // bind a non-void returning method as a Closure.
151 void WaitOnDBEvent() {
152 db_thread_event_.Wait();
155 // Adds a persistent cookie to store_.
156 void AddCookie(const std::string& name,
157 const std::string& value,
158 const std::string& domain,
159 const std::string& path,
160 const base::Time& creation) {
161 store_->AddCookie(
162 net::CanonicalCookie(GURL(), name, value, domain, path, creation,
163 creation, creation, false, false,
164 net::COOKIE_PRIORITY_DEFAULT));
167 std::string ReadRawDBContents() {
168 std::string contents;
169 if (!base::ReadFileToString(temp_dir_.path().Append(kCookieFilename),
170 &contents))
171 return std::string();
172 return contents;
175 virtual void SetUp() OVERRIDE {
176 ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
179 virtual void TearDown() OVERRIDE {
180 DestroyStore();
181 pool_owner_->pool()->Shutdown();
184 protected:
185 base::MessageLoop main_loop_;
186 scoped_ptr<base::SequencedWorkerPoolOwner> pool_owner_;
187 base::WaitableEvent loaded_event_;
188 base::WaitableEvent key_loaded_event_;
189 base::WaitableEvent db_thread_event_;
190 CanonicalCookieVector cookies_;
191 base::ScopedTempDir temp_dir_;
192 scoped_refptr<SQLitePersistentCookieStore> store_;
195 TEST_F(SQLitePersistentCookieStoreTest, TestInvalidMetaTableRecovery) {
196 InitializeStore(false, false);
197 AddCookie("A", "B", "foo.bar", "/", base::Time::Now());
198 DestroyStore();
200 // Load up the store and verify that it has good data in it.
201 CanonicalCookieVector cookies;
202 CreateAndLoad(false, false, &cookies);
203 ASSERT_EQ(1U, cookies.size());
204 ASSERT_STREQ("foo.bar", cookies[0]->Domain().c_str());
205 ASSERT_STREQ("A", cookies[0]->Name().c_str());
206 ASSERT_STREQ("B", cookies[0]->Value().c_str());
207 DestroyStore();
208 STLDeleteElements(&cookies);
210 // Now corrupt the meta table.
212 sql::Connection db;
213 ASSERT_TRUE(db.Open(temp_dir_.path().Append(kCookieFilename)));
214 sql::MetaTable meta_table_;
215 meta_table_.Init(&db, 1, 1);
216 ASSERT_TRUE(db.Execute("DELETE FROM meta"));
217 db.Close();
220 // Upon loading, the database should be reset to a good, blank state.
221 CreateAndLoad(false, false, &cookies);
222 ASSERT_EQ(0U, cookies.size());
224 // Verify that, after, recovery, the database persists properly.
225 AddCookie("X", "Y", "foo.bar", "/", base::Time::Now());
226 DestroyStore();
227 CreateAndLoad(false, false, &cookies);
228 ASSERT_EQ(1U, cookies.size());
229 ASSERT_STREQ("foo.bar", cookies[0]->Domain().c_str());
230 ASSERT_STREQ("X", cookies[0]->Name().c_str());
231 ASSERT_STREQ("Y", cookies[0]->Value().c_str());
232 STLDeleteElements(&cookies);
235 // Test if data is stored as expected in the SQLite database.
236 TEST_F(SQLitePersistentCookieStoreTest, TestPersistance) {
237 InitializeStore(false, false);
238 AddCookie("A", "B", "foo.bar", "/", base::Time::Now());
239 // Replace the store effectively destroying the current one and forcing it
240 // to write its data to disk. Then we can see if after loading it again it
241 // is still there.
242 DestroyStore();
243 // Reload and test for persistence
244 CanonicalCookieVector cookies;
245 CreateAndLoad(false, false, &cookies);
246 ASSERT_EQ(1U, cookies.size());
247 ASSERT_STREQ("foo.bar", cookies[0]->Domain().c_str());
248 ASSERT_STREQ("A", cookies[0]->Name().c_str());
249 ASSERT_STREQ("B", cookies[0]->Value().c_str());
251 // Now delete the cookie and check persistence again.
252 store_->DeleteCookie(*cookies[0]);
253 DestroyStore();
254 STLDeleteElements(&cookies);
256 // Reload and check if the cookie has been removed.
257 CreateAndLoad(false, false, &cookies);
258 ASSERT_EQ(0U, cookies.size());
261 // Test that priority load of cookies for a specfic domain key could be
262 // completed before the entire store is loaded
263 TEST_F(SQLitePersistentCookieStoreTest, TestLoadCookiesForKey) {
264 InitializeStore(false, false);
265 base::Time t = base::Time::Now();
266 AddCookie("A", "B", "foo.bar", "/", t);
267 t += base::TimeDelta::FromInternalValue(10);
268 AddCookie("A", "B", "www.aaa.com", "/", t);
269 t += base::TimeDelta::FromInternalValue(10);
270 AddCookie("A", "B", "travel.aaa.com", "/", t);
271 t += base::TimeDelta::FromInternalValue(10);
272 AddCookie("A", "B", "www.bbb.com", "/", t);
273 DestroyStore();
275 store_ = new SQLitePersistentCookieStore(
276 temp_dir_.path().Append(kCookieFilename),
277 client_task_runner(),
278 background_task_runner(),
279 false, NULL,
280 scoped_ptr<content::CookieCryptoDelegate>());
282 // Posting a blocking task to db_thread_ makes sure that the DB thread waits
283 // until both Load and LoadCookiesForKey have been posted to its task queue.
284 background_task_runner()->PostTask(
285 FROM_HERE,
286 base::Bind(&SQLitePersistentCookieStoreTest::WaitOnDBEvent,
287 base::Unretained(this)));
288 store_->Load(base::Bind(&SQLitePersistentCookieStoreTest::OnLoaded,
289 base::Unretained(this)));
290 store_->LoadCookiesForKey("aaa.com",
291 base::Bind(&SQLitePersistentCookieStoreTest::OnKeyLoaded,
292 base::Unretained(this)));
293 background_task_runner()->PostTask(
294 FROM_HERE,
295 base::Bind(&SQLitePersistentCookieStoreTest::WaitOnDBEvent,
296 base::Unretained(this)));
298 // Now the DB-thread queue contains:
299 // (active:)
300 // 1. Wait (on db_event)
301 // (pending:)
302 // 2. "Init And Chain-Load First Domain"
303 // 3. Priority Load (aaa.com)
304 // 4. Wait (on db_event)
305 db_thread_event_.Signal();
306 key_loaded_event_.Wait();
307 ASSERT_EQ(loaded_event_.IsSignaled(), false);
308 std::set<std::string> cookies_loaded;
309 for (CanonicalCookieVector::const_iterator it = cookies_.begin();
310 it != cookies_.end();
311 ++it) {
312 cookies_loaded.insert((*it)->Domain().c_str());
314 STLDeleteElements(&cookies_);
315 ASSERT_GT(4U, cookies_loaded.size());
316 ASSERT_EQ(true, cookies_loaded.find("www.aaa.com") != cookies_loaded.end());
317 ASSERT_EQ(true,
318 cookies_loaded.find("travel.aaa.com") != cookies_loaded.end());
320 db_thread_event_.Signal();
321 loaded_event_.Wait();
322 for (CanonicalCookieVector::const_iterator it = cookies_.begin();
323 it != cookies_.end();
324 ++it) {
325 cookies_loaded.insert((*it)->Domain().c_str());
327 ASSERT_EQ(4U, cookies_loaded.size());
328 ASSERT_EQ(cookies_loaded.find("foo.bar") != cookies_loaded.end(),
329 true);
330 ASSERT_EQ(cookies_loaded.find("www.bbb.com") != cookies_loaded.end(), true);
331 STLDeleteElements(&cookies_);
334 // Test that we can force the database to be written by calling Flush().
335 TEST_F(SQLitePersistentCookieStoreTest, TestFlush) {
336 InitializeStore(false, false);
337 // File timestamps don't work well on all platforms, so we'll determine
338 // whether the DB file has been modified by checking its size.
339 base::FilePath path = temp_dir_.path().Append(kCookieFilename);
340 base::File::Info info;
341 ASSERT_TRUE(base::GetFileInfo(path, &info));
342 int64 base_size = info.size;
344 // Write some large cookies, so the DB will have to expand by several KB.
345 for (char c = 'a'; c < 'z'; ++c) {
346 // Each cookie needs a unique timestamp for creation_utc (see DB schema).
347 base::Time t = base::Time::Now() + base::TimeDelta::FromMicroseconds(c);
348 std::string name(1, c);
349 std::string value(1000, c);
350 AddCookie(name, value, "foo.bar", "/", t);
353 Flush();
355 // We forced a write, so now the file will be bigger.
356 ASSERT_TRUE(base::GetFileInfo(path, &info));
357 ASSERT_GT(info.size, base_size);
360 // Test loading old session cookies from the disk.
361 TEST_F(SQLitePersistentCookieStoreTest, TestLoadOldSessionCookies) {
362 InitializeStore(false, true);
364 // Add a session cookie.
365 store_->AddCookie(
366 net::CanonicalCookie(
367 GURL(), "C", "D", "sessioncookie.com", "/", base::Time::Now(),
368 base::Time(), base::Time::Now(), false, false,
369 net::COOKIE_PRIORITY_DEFAULT));
371 // Force the store to write its data to the disk.
372 DestroyStore();
374 // Create a store that loads session cookies and test that the session cookie
375 // was loaded.
376 CanonicalCookieVector cookies;
377 CreateAndLoad(false, true, &cookies);
379 ASSERT_EQ(1U, cookies.size());
380 ASSERT_STREQ("sessioncookie.com", cookies[0]->Domain().c_str());
381 ASSERT_STREQ("C", cookies[0]->Name().c_str());
382 ASSERT_STREQ("D", cookies[0]->Value().c_str());
383 ASSERT_EQ(net::COOKIE_PRIORITY_DEFAULT, cookies[0]->Priority());
385 STLDeleteElements(&cookies);
388 // Test loading old session cookies from the disk.
389 TEST_F(SQLitePersistentCookieStoreTest, TestDontLoadOldSessionCookies) {
390 InitializeStore(false, true);
392 // Add a session cookie.
393 store_->AddCookie(
394 net::CanonicalCookie(
395 GURL(), "C", "D", "sessioncookie.com", "/", base::Time::Now(),
396 base::Time(), base::Time::Now(), false, false,
397 net::COOKIE_PRIORITY_DEFAULT));
399 // Force the store to write its data to the disk.
400 DestroyStore();
402 // Create a store that doesn't load old session cookies and test that the
403 // session cookie was not loaded.
404 CanonicalCookieVector cookies;
405 CreateAndLoad(false, false, &cookies);
406 ASSERT_EQ(0U, cookies.size());
408 // The store should also delete the session cookie. Wait until that has been
409 // done.
410 DestroyStore();
412 // Create a store that loads old session cookies and test that the session
413 // cookie is gone.
414 CreateAndLoad(false, true, &cookies);
415 ASSERT_EQ(0U, cookies.size());
418 TEST_F(SQLitePersistentCookieStoreTest, PersistIsPersistent) {
419 InitializeStore(false, true);
420 static const char kSessionName[] = "session";
421 static const char kPersistentName[] = "persistent";
423 // Add a session cookie.
424 store_->AddCookie(
425 net::CanonicalCookie(
426 GURL(), kSessionName, "val", "sessioncookie.com", "/",
427 base::Time::Now(), base::Time(), base::Time::Now(), false, false,
428 net::COOKIE_PRIORITY_DEFAULT));
429 // Add a persistent cookie.
430 store_->AddCookie(
431 net::CanonicalCookie(
432 GURL(), kPersistentName, "val", "sessioncookie.com", "/",
433 base::Time::Now() - base::TimeDelta::FromDays(1),
434 base::Time::Now() + base::TimeDelta::FromDays(1),
435 base::Time::Now(), false, false,
436 net::COOKIE_PRIORITY_DEFAULT));
438 // Force the store to write its data to the disk.
439 DestroyStore();
441 // Create a store that loads session cookie and test that the IsPersistent
442 // attribute is restored.
443 CanonicalCookieVector cookies;
444 CreateAndLoad(false, true, &cookies);
445 ASSERT_EQ(2U, cookies.size());
447 std::map<std::string, net::CanonicalCookie*> cookie_map;
448 for (CanonicalCookieVector::const_iterator it = cookies.begin();
449 it != cookies.end();
450 ++it) {
451 cookie_map[(*it)->Name()] = *it;
454 std::map<std::string, net::CanonicalCookie*>::const_iterator it =
455 cookie_map.find(kSessionName);
456 ASSERT_TRUE(it != cookie_map.end());
457 EXPECT_FALSE(cookie_map[kSessionName]->IsPersistent());
459 it = cookie_map.find(kPersistentName);
460 ASSERT_TRUE(it != cookie_map.end());
461 EXPECT_TRUE(cookie_map[kPersistentName]->IsPersistent());
463 STLDeleteElements(&cookies);
466 TEST_F(SQLitePersistentCookieStoreTest, PriorityIsPersistent) {
467 static const char kLowName[] = "low";
468 static const char kMediumName[] = "medium";
469 static const char kHighName[] = "high";
470 static const char kCookieDomain[] = "sessioncookie.com";
471 static const char kCookieValue[] = "value";
472 static const char kCookiePath[] = "/";
474 InitializeStore(false, true);
476 // Add a low-priority persistent cookie.
477 store_->AddCookie(
478 net::CanonicalCookie(
479 GURL(), kLowName, kCookieValue, kCookieDomain, kCookiePath,
480 base::Time::Now() - base::TimeDelta::FromMinutes(1),
481 base::Time::Now() + base::TimeDelta::FromDays(1),
482 base::Time::Now(), false, false,
483 net::COOKIE_PRIORITY_LOW));
485 // Add a medium-priority persistent cookie.
486 store_->AddCookie(
487 net::CanonicalCookie(
488 GURL(), kMediumName, kCookieValue, kCookieDomain, kCookiePath,
489 base::Time::Now() - base::TimeDelta::FromMinutes(2),
490 base::Time::Now() + base::TimeDelta::FromDays(1),
491 base::Time::Now(), false, false,
492 net::COOKIE_PRIORITY_MEDIUM));
494 // Add a high-priority peristent cookie.
495 store_->AddCookie(
496 net::CanonicalCookie(
497 GURL(), kHighName, kCookieValue, kCookieDomain, kCookiePath,
498 base::Time::Now() - base::TimeDelta::FromMinutes(3),
499 base::Time::Now() + base::TimeDelta::FromDays(1),
500 base::Time::Now(), false, false,
501 net::COOKIE_PRIORITY_HIGH));
503 // Force the store to write its data to the disk.
504 DestroyStore();
506 // Create a store that loads session cookie and test that the priority
507 // attribute values are restored.
508 CanonicalCookieVector cookies;
509 CreateAndLoad(false, true, &cookies);
510 ASSERT_EQ(3U, cookies.size());
512 // Put the cookies into a map, by name, so we can easily find them.
513 std::map<std::string, net::CanonicalCookie*> cookie_map;
514 for (CanonicalCookieVector::const_iterator it = cookies.begin();
515 it != cookies.end();
516 ++it) {
517 cookie_map[(*it)->Name()] = *it;
520 // Validate that each cookie has the correct priority.
521 std::map<std::string, net::CanonicalCookie*>::const_iterator it =
522 cookie_map.find(kLowName);
523 ASSERT_TRUE(it != cookie_map.end());
524 EXPECT_EQ(net::COOKIE_PRIORITY_LOW, cookie_map[kLowName]->Priority());
526 it = cookie_map.find(kMediumName);
527 ASSERT_TRUE(it != cookie_map.end());
528 EXPECT_EQ(net::COOKIE_PRIORITY_MEDIUM, cookie_map[kMediumName]->Priority());
530 it = cookie_map.find(kHighName);
531 ASSERT_TRUE(it != cookie_map.end());
532 EXPECT_EQ(net::COOKIE_PRIORITY_HIGH, cookie_map[kHighName]->Priority());
534 STLDeleteElements(&cookies);
537 TEST_F(SQLitePersistentCookieStoreTest, UpdateToEncryption) {
538 CanonicalCookieVector cookies;
540 // Create unencrypted cookie store and write something to it.
541 InitializeStore(false, false);
542 AddCookie("name", "value123XYZ", "foo.bar", "/", base::Time::Now());
543 DestroyStore();
545 // Verify that "value" is visible in the file. This is necessary in order to
546 // have confidence in a later test that "encrypted_value" is not visible.
547 std::string contents = ReadRawDBContents();
548 EXPECT_NE(0U, contents.length());
549 EXPECT_NE(contents.find("value123XYZ"), std::string::npos);
551 // Create encrypted cookie store and ensure old cookie still reads.
552 STLDeleteElements(&cookies_);
553 EXPECT_EQ(0U, cookies_.size());
554 CreateAndLoad(true, false, &cookies);
555 EXPECT_EQ(1U, cookies_.size());
556 EXPECT_EQ("name", cookies_[0]->Name());
557 EXPECT_EQ("value123XYZ", cookies_[0]->Value());
559 // Make sure we can update existing cookie and add new cookie as encrypted.
560 store_->DeleteCookie(*(cookies_[0]));
561 AddCookie("name", "encrypted_value123XYZ", "foo.bar", "/", base::Time::Now());
562 AddCookie("other", "something456ABC", "foo.bar", "/",
563 base::Time::Now() + base::TimeDelta::FromInternalValue(10));
564 DestroyStore();
565 STLDeleteElements(&cookies_);
566 CreateAndLoad(true, false, &cookies);
567 EXPECT_EQ(2U, cookies_.size());
568 net::CanonicalCookie* cookie_name = NULL;
569 net::CanonicalCookie* cookie_other = NULL;
570 if (cookies_[0]->Name() == "name") {
571 cookie_name = cookies_[0];
572 cookie_other = cookies_[1];
573 } else {
574 cookie_name = cookies_[1];
575 cookie_other = cookies_[0];
577 EXPECT_EQ("encrypted_value123XYZ", cookie_name->Value());
578 EXPECT_EQ("something456ABC", cookie_other->Value());
579 DestroyStore();
580 STLDeleteElements(&cookies_);
582 // Examine the real record to make sure plaintext version doesn't exist.
583 sql::Connection db;
584 sql::Statement smt;
585 int resultcount = 0;
586 ASSERT_TRUE(db.Open(temp_dir_.path().Append(kCookieFilename)));
587 smt.Assign(db.GetCachedStatement(SQL_FROM_HERE,
588 "SELECT * "
589 "FROM cookies "
590 "WHERE host_key = 'foo.bar'"));
591 while (smt.Step()) {
592 resultcount++;
593 for (int i=0; i < smt.ColumnCount(); i++) {
594 EXPECT_EQ(smt.ColumnString(i).find("value"), std::string::npos);
595 EXPECT_EQ(smt.ColumnString(i).find("something"), std::string::npos);
598 EXPECT_EQ(2, resultcount);
600 // Verify that "encrypted_value" is NOT visible in the file.
601 contents = ReadRawDBContents();
602 EXPECT_NE(0U, contents.length());
603 EXPECT_EQ(contents.find("encrypted_value123XYZ"), std::string::npos);
604 EXPECT_EQ(contents.find("something456ABC"), std::string::npos);
607 } // namespace content