simplify test case

Author: 0xdeafbeef

tests/type_check.rs

@@ -68,35 +68,13 @@ async fn check_tiny_int() {
     type_check::<_, sql_types::TinyInt>(conn, i8::MIN).await;
     type_check::<_, sql_types::TinyInt>(conn, i8::MAX).await;
 
-    #[derive(QueryableByName, Debug)]
-    #[diesel(table_name = test_small)]
-    struct Test {
-        id: i8,
-    }
-
-    table!(test_small(id){
-        id -> TinyInt,
-    });
-
     // test case for https://github.com/weiznich/diesel_async/issues/91
-    diesel::sql_query("drop table if exists test_small")
-        .execute(conn)
-        .await
-        .unwrap();
-    diesel::sql_query("create table test_small(id smallint primary key)")
-        .execute(conn)
-        .await
-        .unwrap();
-    diesel::sql_query("insert into test_small(id) values(-1)")
-        .execute(conn)
-        .await
-        .unwrap();
-    let got = diesel::sql_query("select id from test_small where id = ?")
+    let res = diesel::dsl::sql::<diesel::sql_types::Bool>("SELECT -1 = ")
         .bind::<sql_types::TinyInt, _>(-1)
-        .load::<Test>(conn)
+        .get_result::<bool>(conn)
         .await
         .unwrap();
-    assert_eq!(got[0].id, -1);
+    assert!(res);
 }
 
 #[cfg(feature = "mysql")]