fix db bug

hutool-db/src/test/java/cn/hutool/db/DbTest.java

@@ -21,7 +21,7 @@ public class DbTest {
 		List<Entity> find = Db.use().query("select * from user where age = ?", 18);
 		Assert.assertEquals("王五", find.get(0).get("name"));
 	}
-	
+
 	@Test
 	public void findTest() throws SQLException {
 		List<Entity> find = Db.use().find(Entity.create("user").set("age", 18));
@@ -39,7 +39,7 @@ public class DbTest {
 
 	@Test
 	public void pageTest2() throws SQLException {
-		String sql = "select * from user";
+		String sql = "select * from user order by name";
 		// 测试数据库中一共4条数据，第0页有3条，第1页有1条
 		List<Entity> page0 = Db.use().page(
 				sql, Page.of(0, 3));
@@ -56,6 +56,12 @@ public class DbTest {
 		Assert.assertEquals(4, count);
 	}
 
+	@Test
+	public void countTest2() throws SQLException {
+		final long count = Db.use().count("select * from user order by name DESC");
+		Assert.assertEquals(4, count);
+	}
+
 	@Test
 	public void findLikeTest() throws SQLException {
 		// 方式1
@@ -74,7 +80,7 @@ public class DbTest {
 	@Test
 	public void findByTest() throws SQLException {
 		List<Entity> find = Db.use().findBy("user",
-				Condition.parse("age", "> 18"), 
+				Condition.parse("age", "> 18"),
 				Condition.parse("age", "< 100")
 		);
 		for (Entity entity : find) {
@@ -82,7 +88,7 @@ public class DbTest {
 		}
 		Assert.assertEquals("unitTestUser", find.get(0).get("name"));
 	}
-	
+
 	@Test
 	@Ignore
 	public void txTest() throws SQLException {