#include "DbTest.h"
#include "PgTestEnvironment.h"
#include "Pgsql_Result.h"

using namespace pgtest;

namespace {

int scalarInt(Pgsql::Connection &c, const char *sql)
{
	Pgsql::Result r = c.query(sql);
	EXPECT_EQ(r.rows(), 1);
	return QString::fromUtf8(r.val(0, 0)).toInt();
}

} // namespace

class Smoke : public DbTest {};

TEST_F(Smoke, SelectOne)
{
	EXPECT_EQ(scalarInt(conn(), "SELECT 1"), 1);
}

TEST_F(Smoke, RunsOnClonedDatabase)
{
	Pgsql::Result r = conn().query("SELECT current_database()");
	ASSERT_EQ(r.rows(), 1);
	EXPECT_EQ(QString::fromUtf8(r.val(0, 0)), dbName());
	EXPECT_TRUE(dbName().startsWith("t_"));
}

TEST_F(Smoke, ServerVersionAtLeast14)
{
	EXPECT_GE(serverVersionNum(), 140000);
}

TEST_F(Smoke, FixtureSchemaPresent)
{
	EXPECT_EQ(scalarInt(conn(), "SELECT count(*) FROM fixture_item"), 2);
}

// The two tests below each modify the database and expect the pristine
// fixture state, in whichever order they run.
TEST_F(Smoke, IsolationA)
{
	EXPECT_EQ(scalarInt(conn(), "SELECT count(*) FROM fixture_item"), 2);
	conn().query("INSERT INTO fixture_item VALUES (100, 'a')");
	EXPECT_EQ(scalarInt(conn(), "SELECT count(*) FROM fixture_item"), 3);
}

TEST_F(Smoke, IsolationB)
{
	EXPECT_EQ(scalarInt(conn(), "SELECT count(*) FROM fixture_item"), 2);
	conn().query("DELETE FROM fixture_item");
	EXPECT_EQ(scalarInt(conn(), "SELECT count(*) FROM fixture_item"), 0);
}

TEST_F(Smoke, VersionGate)
{
	REQUIRE_PG_AT_LEAST(15);
	EXPECT_GE(serverVersionNum(), 150000);
}