| // Copyright (c) 2012 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. |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| |
| #include <string> |
| |
| #include "base/bind.h" |
| #include "base/files/file_util.h" |
| #include "base/files/memory_mapped_file.h" |
| #include "base/files/scoped_temp_dir.h" |
| #include "sql/connection.h" |
| #include "sql/statement.h" |
| #include "sql/test/sql_test_base.h" |
| #include "sql/test/test_helpers.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| #include "third_party/sqlite/sqlite3.h" |
| |
| #if defined(OS_IOS) |
| #include "base/ios/ios_util.h" |
| #endif |
| |
| // Test that certain features are/are-not enabled in our SQLite. |
| |
| namespace { |
| |
| void CaptureErrorCallback(int* error_pointer, std::string* sql_text, |
| int error, sql::Statement* stmt) { |
| *error_pointer = error; |
| const char* text = stmt ? stmt->GetSQLStatement() : NULL; |
| *sql_text = text ? text : "no statement available"; |
| } |
| |
| class SQLiteFeaturesTest : public sql::SQLTestBase { |
| public: |
| SQLiteFeaturesTest() : error_(SQLITE_OK) {} |
| |
| void SetUp() override { |
| SQLTestBase::SetUp(); |
| |
| // The error delegate will set |error_| and |sql_text_| when any sqlite |
| // statement operation returns an error code. |
| db().set_error_callback( |
| base::Bind(&CaptureErrorCallback, &error_, &sql_text_)); |
| } |
| |
| void TearDown() override { |
| // If any error happened the original sql statement can be found in |
| // |sql_text_|. |
| EXPECT_EQ(SQLITE_OK, error_) << sql_text_; |
| |
| SQLTestBase::TearDown(); |
| } |
| |
| int error() { return error_; } |
| |
| private: |
| // The error code of the most recent error. |
| int error_; |
| // Original statement which has caused the error. |
| std::string sql_text_; |
| }; |
| |
| // Do not include fts1 support, it is not useful, and nobody is |
| // looking at it. |
| TEST_F(SQLiteFeaturesTest, NoFTS1) { |
| ASSERT_EQ(SQLITE_ERROR, db().ExecuteAndReturnErrorCode( |
| "CREATE VIRTUAL TABLE foo USING fts1(x)")); |
| } |
| |
| // Do not include fts2 support, it is not useful, and nobody is |
| // looking at it. |
| TEST_F(SQLiteFeaturesTest, NoFTS2) { |
| ASSERT_EQ(SQLITE_ERROR, db().ExecuteAndReturnErrorCode( |
| "CREATE VIRTUAL TABLE foo USING fts2(x)")); |
| } |
| |
| // fts3 used to be used for history files, and may also be used by WebDatabase |
| // clients. |
| TEST_F(SQLiteFeaturesTest, FTS3) { |
| ASSERT_TRUE(db().Execute("CREATE VIRTUAL TABLE foo USING fts3(x)")); |
| } |
| |
| #if !defined(USE_SYSTEM_SQLITE) |
| // Originally history used fts2, which Chromium patched to treat "foo*" as a |
| // prefix search, though the icu tokenizer would return it as two tokens {"foo", |
| // "*"}. Test that fts3 works correctly. |
| TEST_F(SQLiteFeaturesTest, FTS3_Prefix) { |
| const char kCreateSql[] = |
| "CREATE VIRTUAL TABLE foo USING fts3(x, tokenize icu)"; |
| ASSERT_TRUE(db().Execute(kCreateSql)); |
| |
| ASSERT_TRUE(db().Execute("INSERT INTO foo (x) VALUES ('test')")); |
| |
| sql::Statement s(db().GetUniqueStatement( |
| "SELECT x FROM foo WHERE x MATCH 'te*'")); |
| ASSERT_TRUE(s.Step()); |
| EXPECT_EQ("test", s.ColumnString(0)); |
| } |
| #endif |
| |
| #if !defined(USE_SYSTEM_SQLITE) |
| // Verify that Chromium's SQLite is compiled with HAVE_USLEEP defined. With |
| // HAVE_USLEEP, SQLite uses usleep() with millisecond granularity. Otherwise it |
| // uses sleep() with second granularity. |
| TEST_F(SQLiteFeaturesTest, UsesUsleep) { |
| base::TimeTicks before = base::TimeTicks::Now(); |
| sqlite3_sleep(1); |
| base::TimeDelta delta = base::TimeTicks::Now() - before; |
| |
| // It is not impossible for this to be over 1000 if things are compiled the |
| // right way. But it is very unlikely, most platforms seem to be around |
| // <TBD>. |
| LOG(ERROR) << "Milliseconds: " << delta.InMilliseconds(); |
| EXPECT_LT(delta.InMilliseconds(), 1000); |
| } |
| #endif |
| |
| // Ensure that our SQLite version has working foreign key support with cascade |
| // delete support. |
| TEST_F(SQLiteFeaturesTest, ForeignKeySupport) { |
| ASSERT_TRUE(db().Execute("PRAGMA foreign_keys=1")); |
| ASSERT_TRUE(db().Execute("CREATE TABLE parents (id INTEGER PRIMARY KEY)")); |
| ASSERT_TRUE(db().Execute( |
| "CREATE TABLE children (" |
| " id INTEGER PRIMARY KEY," |
| " pid INTEGER NOT NULL REFERENCES parents(id) ON DELETE CASCADE)")); |
| |
| // Inserting without a matching parent should fail with constraint violation. |
| // Mask off any extended error codes for USE_SYSTEM_SQLITE. |
| int insertErr = db().ExecuteAndReturnErrorCode( |
| "INSERT INTO children VALUES (10, 1)"); |
| EXPECT_EQ(SQLITE_CONSTRAINT, (insertErr&0xff)); |
| |
| size_t rows; |
| EXPECT_TRUE(sql::test::CountTableRows(&db(), "children", &rows)); |
| EXPECT_EQ(0u, rows); |
| |
| // Inserting with a matching parent should work. |
| ASSERT_TRUE(db().Execute("INSERT INTO parents VALUES (1)")); |
| EXPECT_TRUE(db().Execute("INSERT INTO children VALUES (11, 1)")); |
| EXPECT_TRUE(db().Execute("INSERT INTO children VALUES (12, 1)")); |
| EXPECT_TRUE(sql::test::CountTableRows(&db(), "children", &rows)); |
| EXPECT_EQ(2u, rows); |
| |
| // Deleting the parent should cascade, i.e., delete the children as well. |
| ASSERT_TRUE(db().Execute("DELETE FROM parents")); |
| EXPECT_TRUE(sql::test::CountTableRows(&db(), "children", &rows)); |
| EXPECT_EQ(0u, rows); |
| } |
| |
| #if defined(MOJO_APPTEST_IMPL) || defined(OS_IOS) |
| // If the platform cannot support SQLite mmap'ed I/O, make sure SQLite isn't |
| // offering to support it. |
| TEST_F(SQLiteFeaturesTest, NoMmap) { |
| #if defined(OS_IOS) && defined(USE_SYSTEM_SQLITE) |
| if (base::ios::IsRunningOnIOS10OrLater()) { |
| // iOS 10 added mmap support for sqlite. |
| return; |
| } |
| #endif |
| |
| // For recent versions of SQLite, SQLITE_MAX_MMAP_SIZE=0 can be used to |
| // disable mmap support. Alternately, sqlite3_config() could be used. In |
| // that case, the pragma will run successfully, but the size will always be 0. |
| // |
| // The SQLite embedded in older iOS releases predates the addition of mmap |
| // support. In that case the pragma will run without error, but no results |
| // are returned when querying the value. |
| // |
| // MojoVFS implements a no-op for xFileControl(). PRAGMA mmap_size is |
| // implemented in terms of SQLITE_FCNTL_MMAP_SIZE. In that case, the pragma |
| // will succeed but with no effect. |
| ignore_result(db().Execute("PRAGMA mmap_size = 1048576")); |
| sql::Statement s(db().GetUniqueStatement("PRAGMA mmap_size")); |
| ASSERT_TRUE(!s.Step() || !s.ColumnInt64(0)); |
| } |
| #endif |
| |
| #if !defined(MOJO_APPTEST_IMPL) |
| // Verify that OS file writes are reflected in the memory mapping of a |
| // memory-mapped file. Normally SQLite writes to memory-mapped files using |
| // memcpy(), which should stay consistent. Our SQLite is slightly patched to |
| // mmap read only, then write using OS file writes. If the memory-mapped |
| // version doesn't reflect the OS file writes, SQLite's memory-mapped I/O should |
| // be disabled on this platform using SQLITE_MAX_MMAP_SIZE=0. |
| TEST_F(SQLiteFeaturesTest, Mmap) { |
| #if defined(OS_IOS) && defined(USE_SYSTEM_SQLITE) |
| if (!base::ios::IsRunningOnIOS10OrLater()) { |
| // iOS9's sqlite does not support mmap, so this test must be skipped. |
| return; |
| } |
| #endif |
| |
| // Try to turn on mmap'ed I/O. |
| ignore_result(db().Execute("PRAGMA mmap_size = 1048576")); |
| { |
| sql::Statement s(db().GetUniqueStatement("PRAGMA mmap_size")); |
| |
| #if !defined(USE_SYSTEM_SQLITE) |
| // With Chromium's version of SQLite, the setting should always be non-zero. |
| ASSERT_TRUE(s.Step()); |
| ASSERT_GT(s.ColumnInt64(0), 0); |
| #else |
| // With the system SQLite, don't verify underlying mmap functionality if the |
| // SQLite is too old to support mmap, or if mmap is disabled (see NoMmap |
| // test). USE_SYSTEM_SQLITE is not bundled into the NoMmap case because |
| // whether mmap is enabled or not is outside of Chromium's control. |
| if (!s.Step() || !s.ColumnInt64(0)) |
| return; |
| #endif |
| } |
| db().Close(); |
| |
| const uint32_t kFlags = |
| base::File::FLAG_OPEN | base::File::FLAG_READ | base::File::FLAG_WRITE; |
| char buf[4096]; |
| |
| // Create a file with a block of '0', a block of '1', and a block of '2'. |
| { |
| base::File f(db_path(), kFlags); |
| ASSERT_TRUE(f.IsValid()); |
| memset(buf, '0', sizeof(buf)); |
| ASSERT_EQ(f.Write(0*sizeof(buf), buf, sizeof(buf)), (int)sizeof(buf)); |
| |
| memset(buf, '1', sizeof(buf)); |
| ASSERT_EQ(f.Write(1*sizeof(buf), buf, sizeof(buf)), (int)sizeof(buf)); |
| |
| memset(buf, '2', sizeof(buf)); |
| ASSERT_EQ(f.Write(2*sizeof(buf), buf, sizeof(buf)), (int)sizeof(buf)); |
| } |
| |
| // mmap the file and verify that everything looks right. |
| { |
| base::MemoryMappedFile m; |
| ASSERT_TRUE(m.Initialize(db_path())); |
| |
| memset(buf, '0', sizeof(buf)); |
| ASSERT_EQ(0, memcmp(buf, m.data() + 0*sizeof(buf), sizeof(buf))); |
| |
| memset(buf, '1', sizeof(buf)); |
| ASSERT_EQ(0, memcmp(buf, m.data() + 1*sizeof(buf), sizeof(buf))); |
| |
| memset(buf, '2', sizeof(buf)); |
| ASSERT_EQ(0, memcmp(buf, m.data() + 2*sizeof(buf), sizeof(buf))); |
| |
| // Scribble some '3' into the first page of the file, and verify that it |
| // looks the same in the memory mapping. |
| { |
| base::File f(db_path(), kFlags); |
| ASSERT_TRUE(f.IsValid()); |
| memset(buf, '3', sizeof(buf)); |
| ASSERT_EQ(f.Write(0*sizeof(buf), buf, sizeof(buf)), (int)sizeof(buf)); |
| } |
| ASSERT_EQ(0, memcmp(buf, m.data() + 0*sizeof(buf), sizeof(buf))); |
| |
| // Repeat with a single '4' in case page-sized blocks are different. |
| const size_t kOffset = 1*sizeof(buf) + 123; |
| ASSERT_NE('4', m.data()[kOffset]); |
| { |
| base::File f(db_path(), kFlags); |
| ASSERT_TRUE(f.IsValid()); |
| buf[0] = '4'; |
| ASSERT_EQ(f.Write(kOffset, buf, 1), 1); |
| } |
| ASSERT_EQ('4', m.data()[kOffset]); |
| } |
| } |
| #endif |
| |
| } // namespace |