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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/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"
class StatementErrorHandler : public sql::ErrorDelegate {
public:
StatementErrorHandler() : error_(SQLITE_OK) {}
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;
}
int error() const { return error_; }
void reset_error() {
sql_text_.clear();
error_ = SQLITE_OK;
}
const char* sql_statement() const { return sql_text_.c_str(); }
protected:
virtual ~StatementErrorHandler() {}
private:
int error_;
std::string sql_text_;
};
class SQLStatementTest : public testing::Test {
public:
SQLStatementTest() : error_handler_(new StatementErrorHandler) {}
void SetUp() {
ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
ASSERT_TRUE(db_.Open(temp_dir_.path().AppendASCII("SQLStatementTest.db")));
// The |error_handler_| will be called if any sqlite statement operation
// returns an error code.
db_.set_error_delegate(error_handler_);
}
void TearDown() {
// If any error happened the original sql statement can be found in
// error_handler_->sql_statement().
EXPECT_EQ(SQLITE_OK, error_handler_->error());
db_.Close();
}
sql::Connection& db() { return db_; }
int sqlite_error() const { return error_handler_->error(); }
void reset_error() const { error_handler_->reset_error(); }
private:
ScopedTempDir temp_dir_;
sql::Connection db_;
scoped_refptr<StatementErrorHandler> error_handler_;
};
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());
reset_error();
}
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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