fix tests

Author: seanaye

sqlx-macros-core/src/derives/row.rs

@@ -189,10 +189,10 @@ fn expand_derive_from_row_struct(
                 },
                 (false, None, Some(JsonAttribute::Nullable)) => {
                     predicates
-                        .push(parse_quote!(::core::Option<::sqlx::types::Json<#ty>>: ::sqlx::decode::Decode<#lifetime, R::Database>));
-                    predicates.push(parse_quote!(::core::Option<::sqlx::types::Json<#ty>>: ::sqlx::types::Type<R::Database>));
+                        .push(parse_quote!(::core::option::Option<::sqlx::types::Json<#ty>>: ::sqlx::decode::Decode<#lifetime, R::Database>));
+                    predicates.push(parse_quote!(::core::option::Option<::sqlx::types::Json<#ty>>: ::sqlx::types::Type<R::Database>));
 
-                    parse_quote!(__row.try_get::<::core::Option<::sqlx::types::Json<_>>, _>(#id_s).map(|x| x.flatten().map(|y| y.0)))
+                    parse_quote!(__row.try_get::<::core::option::Option<::sqlx::types::Json<_>>, _>(#id_s).map(|x| x.and_then(|y| y.0)))
                 },
             };
 

tests/mysql/macros.rs

@@ -510,11 +510,11 @@ async fn test_from_row_json_attr_nullable() -> anyhow::Result<()> {
 
     let mut conn = new::<MySql>().await?;
 
-    let record = sqlx::query_as::<_, Record>("select null as j")
+    let record = sqlx::query_as::<_, Record>("select NULL as j")
         .fetch_one(&mut conn)
         .await?;
 
-    assert_eq!(record.j, None);
+    assert!(record.j.is_none());
     Ok(())
 }