sql/sqlite_features_unittest.cc

   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.
   4
   5 #include <string>
   6
   7 #include "base/bind.h"
   8 #include "base/files/file_util.h"
   9 #include "base/files/scoped_temp_dir.h"
  10 #include "sql/connection.h"
  11 #include "sql/statement.h"
  12 #include "sql/test/test_helpers.h"
  13 #include "testing/gtest/include/gtest/gtest.h"
  14 #include "third_party/sqlite/sqlite3.h"
  15
  16 // Test that certain features are/are-not enabled in our SQLite.
  17
  18 namespace {
  19
  20 void CaptureErrorCallback(int* error_pointer, std::string* sql_text,
  21                           int error, sql::Statement* stmt) {
  22   *error_pointer = error;
  23   const char* text = stmt ? stmt->GetSQLStatement() : NULL;
  24   *sql_text = text ? text : "no statement available";
  25 }
  26
  27 class SQLiteFeaturesTest : public testing::Test {
  28  public:
  29   SQLiteFeaturesTest() : error_(SQLITE_OK) {}
  30
  31   void SetUp() override {
  32     ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
  33     ASSERT_TRUE(db_.Open(temp_dir_.path().AppendASCII("SQLStatementTest.db")));
  34
  35     // The error delegate will set |error_| and |sql_text_| when any sqlite
  36     // statement operation returns an error code.
  37     db_.set_error_callback(base::Bind(&CaptureErrorCallback,
  38                                       &error_, &sql_text_));
  39   }
  40
  41   void TearDown() override {
  42     // If any error happened the original sql statement can be found in
  43     // |sql_text_|.
  44     EXPECT_EQ(SQLITE_OK, error_) << sql_text_;
  45     db_.Close();
  46   }
  47
  48   sql::Connection& db() { return db_; }
  49   int error() { return error_; }
  50
  51  private:
  52   base::ScopedTempDir temp_dir_;
  53   sql::Connection db_;
  54
  55   // The error code of the most recent error.
  56   int error_;
  57   // Original statement which has caused the error.
  58   std::string sql_text_;
  59 };
  60
  61 // Do not include fts1 support, it is not useful, and nobody is
  62 // looking at it.
  63 TEST_F(SQLiteFeaturesTest, NoFTS1) {
  64   ASSERT_EQ(SQLITE_ERROR, db().ExecuteAndReturnErrorCode(
  65       "CREATE VIRTUAL TABLE foo USING fts1(x)"));
  66 }
  67
  68 #if defined(SQLITE_ENABLE_FTS2)
  69 // fts2 is used for older history files, so we're signed on for keeping our
  70 // version up-to-date.
  71 // TODO(shess): Think up a crazy way to get out from having to support
  72 // this forever.
  73 TEST_F(SQLiteFeaturesTest, FTS2) {
  74   ASSERT_TRUE(db().Execute("CREATE VIRTUAL TABLE foo USING fts2(x)"));
  75 }
  76
  77 // A standard SQLite will not include our patch.  This includes iOS.
  78 #if !defined(USE_SYSTEM_SQLITE)
  79 // Chromium fts2 was patched to treat "foo*" as a prefix search, though the icu
  80 // tokenizer will return it as two tokens {"foo", "*"}.
  81 TEST_F(SQLiteFeaturesTest, FTS2_Prefix) {
  82   const char kCreateSql[] =
  83       "CREATE VIRTUAL TABLE foo USING fts2(x, tokenize icu)";
  84   ASSERT_TRUE(db().Execute(kCreateSql));
  85
  86   ASSERT_TRUE(db().Execute("INSERT INTO foo (x) VALUES ('test')"));
  87
  88   sql::Statement s(db().GetUniqueStatement(
  89       "SELECT x FROM foo WHERE x MATCH 'te*'"));
  90   ASSERT_TRUE(s.Step());
  91   EXPECT_EQ("test", s.ColumnString(0));
  92 }
  93 #endif
  94 #endif
  95
  96 // fts3 is used for current history files, and also for WebDatabase.
  97 TEST_F(SQLiteFeaturesTest, FTS3) {
  98   ASSERT_TRUE(db().Execute("CREATE VIRTUAL TABLE foo USING fts3(x)"));
  99 }
 100
 101 #if !defined(USE_SYSTEM_SQLITE)
 102 // Test that fts3 doesn't need fts2's patch (see above).
 103 TEST_F(SQLiteFeaturesTest, FTS3_Prefix) {
 104   const char kCreateSql[] =
 105       "CREATE VIRTUAL TABLE foo USING fts3(x, tokenize icu)";
 106   ASSERT_TRUE(db().Execute(kCreateSql));
 107
 108   ASSERT_TRUE(db().Execute("INSERT INTO foo (x) VALUES ('test')"));
 109
 110   sql::Statement s(db().GetUniqueStatement(
 111       "SELECT x FROM foo WHERE x MATCH 'te*'"));
 112   ASSERT_TRUE(s.Step());
 113   EXPECT_EQ("test", s.ColumnString(0));
 114 }
 115 #endif
 116
 117 #if !defined(USE_SYSTEM_SQLITE)
 118 // Verify that Chromium's SQLite is compiled with HAVE_USLEEP defined.  With
 119 // HAVE_USLEEP, SQLite uses usleep() with millisecond granularity.  Otherwise it
 120 // uses sleep() with second granularity.
 121 TEST_F(SQLiteFeaturesTest, UsesUsleep) {
 122   base::TimeTicks before = base::TimeTicks::Now();
 123   sqlite3_sleep(1);
 124   base::TimeDelta delta = base::TimeTicks::Now() - before;
 125
 126   // It is not impossible for this to be over 1000 if things are compiled the
 127   // right way.  But it is very unlikely, most platforms seem to be around
 128   // <TBD>.
 129   LOG(ERROR) << "Milliseconds: " << delta.InMilliseconds();
 130   EXPECT_LT(delta.InMilliseconds(), 1000);
 131 }
 132 #endif
 133
 134 // Ensure that our SQLite version has working foreign key support with cascade
 135 // delete support.
 136 TEST_F(SQLiteFeaturesTest, ForeignKeySupport) {
 137   ASSERT_TRUE(db().Execute("PRAGMA foreign_keys=1"));
 138   ASSERT_TRUE(db().Execute("CREATE TABLE parents (id INTEGER PRIMARY KEY)"));
 139   ASSERT_TRUE(db().Execute(
 140       "CREATE TABLE children ("
 141       "    id INTEGER PRIMARY KEY,"
 142       "    pid INTEGER NOT NULL REFERENCES parents(id) ON DELETE CASCADE)"));
 143
 144   // Inserting without a matching parent should fail with constraint violation.
 145   // Mask off any extended error codes for USE_SYSTEM_SQLITE.
 146   int insertErr = db().ExecuteAndReturnErrorCode(
 147       "INSERT INTO children VALUES (10, 1)");
 148   EXPECT_EQ(SQLITE_CONSTRAINT, (insertErr&0xff));
 149
 150   size_t rows;
 151   EXPECT_TRUE(sql::test::CountTableRows(&db(), "children", &rows));
 152   EXPECT_EQ(0u, rows);
 153
 154   // Inserting with a matching parent should work.
 155   ASSERT_TRUE(db().Execute("INSERT INTO parents VALUES (1)"));
 156   EXPECT_TRUE(db().Execute("INSERT INTO children VALUES (11, 1)"));
 157   EXPECT_TRUE(db().Execute("INSERT INTO children VALUES (12, 1)"));
 158   EXPECT_TRUE(sql::test::CountTableRows(&db(), "children", &rows));
 159   EXPECT_EQ(2u, rows);
 160
 161   // Deleting the parent should cascade, i.e., delete the children as well.
 162   ASSERT_TRUE(db().Execute("DELETE FROM parents"));
 163   EXPECT_TRUE(sql::test::CountTableRows(&db(), "children", &rows));
 164   EXPECT_EQ(0u, rows);
 165 }
 166
 167 }  // namespace