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// 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 <string>
#include "base/file_util.h"
#include "base/files/scoped_temp_dir.h"
#include "sql/connection.h"
#include "sql/statement.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/sqlite/sqlite3.h"
namespace {
class StatementErrorHandler : public sql::ErrorDelegate {
public:
StatementErrorHandler(int* error, std::string* sql_text)
: error_(error),
sql_text_(sql_text) {}
virtual ~StatementErrorHandler() {}
virtual int OnError(int error, sql::Connection* connection,
sql::Statement* stmt) OVERRIDE {
*error_ = error;
const char* sql_txt = stmt ? stmt->GetSQLStatement() : NULL;
*sql_text_ = sql_txt ? sql_txt : "no statement available";
return error;
}
private:
int* error_;
std::string* sql_text_;
DISALLOW_COPY_AND_ASSIGN(StatementErrorHandler);
};
class SQLStatementTest : public testing::Test {
public:
SQLStatementTest() : error_(SQLITE_OK) {}
void SetUp() {
ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
ASSERT_TRUE(db_.Open(temp_dir_.path().AppendASCII("SQLStatementTest.db")));
// The error delegate will set |error_| and |sql_text_| when any sqlite
// statement operation returns an error code.
db_.set_error_delegate(new StatementErrorHandler(&error_, &sql_text_));
}
void TearDown() {
// If any error happened the original sql statement can be found in
// |sql_text_|.
EXPECT_EQ(SQLITE_OK, error_);
db_.Close();
}
sql::Connection& db() { return db_; }
int sqlite_error() const { return error_; }
void ResetError() {
error_ = SQLITE_OK;
sql_text_.clear();
}
private:
base::ScopedTempDir temp_dir_;
sql::Connection db_;
// The error code of the most recent error.
int error_;
// Original statement which caused the error.
std::string sql_text_;
};
} // namespace
TEST_F(SQLStatementTest, Assign) {
sql::Statement s;
EXPECT_FALSE(s.is_valid());
s.Assign(db().GetUniqueStatement("CREATE TABLE foo (a, b)"));
EXPECT_TRUE(s.is_valid());
}
TEST_F(SQLStatementTest, Run) {
ASSERT_TRUE(db().Execute("CREATE TABLE foo (a, b)"));
ASSERT_TRUE(db().Execute("INSERT INTO foo (a, b) VALUES (3, 12)"));
sql::Statement s(db().GetUniqueStatement("SELECT b FROM foo WHERE a=?"));
EXPECT_FALSE(s.Succeeded());
// Stepping it won't work since we haven't bound the value.
EXPECT_FALSE(s.Step());
// Run should fail since this produces output, and we should use Step(). This
// gets a bit wonky since sqlite says this is OK so succeeded is set.
s.Reset(true);
s.BindInt(0, 3);
EXPECT_FALSE(s.Run());
EXPECT_EQ(SQLITE_ROW, db().GetErrorCode());
EXPECT_TRUE(s.Succeeded());
// Resetting it should put it back to the previous state (not runnable).
s.Reset(true);
EXPECT_FALSE(s.Succeeded());
// Binding and stepping should produce one row.
s.BindInt(0, 3);
EXPECT_TRUE(s.Step());
EXPECT_TRUE(s.Succeeded());
EXPECT_EQ(12, s.ColumnInt(0));
EXPECT_FALSE(s.Step());
EXPECT_TRUE(s.Succeeded());
}
TEST_F(SQLStatementTest, BasicErrorCallback) {
ASSERT_TRUE(db().Execute("CREATE TABLE foo (a INTEGER PRIMARY KEY, b)"));
EXPECT_EQ(SQLITE_OK, sqlite_error());
// Insert in the foo table the primary key. It is an error to insert
// something other than an number. This error causes the error callback
// handler to be called with SQLITE_MISMATCH as error code.
sql::Statement s(db().GetUniqueStatement("INSERT INTO foo (a) VALUES (?)"));
EXPECT_TRUE(s.is_valid());
s.BindCString(0, "bad bad");
EXPECT_FALSE(s.Run());
EXPECT_EQ(SQLITE_MISMATCH, sqlite_error());
ResetError();
}
TEST_F(SQLStatementTest, Reset) {
ASSERT_TRUE(db().Execute("CREATE TABLE foo (a, b)"));
ASSERT_TRUE(db().Execute("INSERT INTO foo (a, b) VALUES (3, 12)"));
ASSERT_TRUE(db().Execute("INSERT INTO foo (a, b) VALUES (4, 13)"));
sql::Statement s(db().GetUniqueStatement(
"SELECT b FROM foo WHERE a = ? "));
s.BindInt(0, 3);
ASSERT_TRUE(s.Step());
EXPECT_EQ(12, s.ColumnInt(0));
ASSERT_FALSE(s.Step());
s.Reset(false);
// Verify that we can get all rows again.
ASSERT_TRUE(s.Step());
EXPECT_EQ(12, s.ColumnInt(0));
EXPECT_FALSE(s.Step());
s.Reset(true);
ASSERT_FALSE(s.Step());
}
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