[FIX] improve the tests

Author: carpecodeum

parquet-variant-compute/src/field_operations.rs

@@ -449,13 +449,13 @@ mod tests {
 
     fn create_test_object() -> (Vec<u8>, Vec<u8>) {
         let mut builder = VariantBuilder::new();
-        {
-            let mut obj = builder.new_object();
-            obj.insert("name", "Alice");
-            obj.insert("age", 30i32);
-            obj.insert("city", "NYC");
-            obj.finish().unwrap();
-        }
+        builder
+            .new_object()
+            .with_field("name", "Alice")
+            .with_field("age", 30i32)
+            .with_field("city", "NYC")
+            .finish()
+            .unwrap();
         builder.finish()
     }
 

parquet-variant-compute/src/variant_array.rs

@@ -394,24 +394,24 @@ mod test {
 
         // Create variant 1: {"name": "Alice", "age": 30}
         let mut builder1 = VariantBuilder::new();
-        {
-            let mut obj = builder1.new_object();
-            obj.insert("name", "Alice");
-            obj.insert("age", 30i32);
-            obj.finish().unwrap();
-        }
+        builder1
+            .new_object()
+            .with_field("name", "Alice")
+            .with_field("age", 30i32)
+            .finish()
+            .unwrap();
         let (metadata1, value1) = builder1.finish();
         builder.append_variant_buffers(&metadata1, &value1);
 
         // Create variant 2: {"name": "Bob", "age": 25, "city": "NYC"}
         let mut builder2 = VariantBuilder::new();
-        {
-            let mut obj = builder2.new_object();
-            obj.insert("name", "Bob");
-            obj.insert("age", 25i32);
-            obj.insert("city", "NYC");
-            obj.finish().unwrap();
-        }
+        builder2
+            .new_object()
+            .with_field("name", "Bob")
+            .with_field("age", 25i32)
+            .with_field("city", "NYC")
+            .finish()
+            .unwrap();
         let (metadata2, value2) = builder2.finish();
         builder.append_variant_buffers(&metadata2, &value2);
 

parquet-variant-compute/src/variant_array_builder.rs

@@ -48,9 +48,10 @@ use std::sync::Arc;
 /// // append a pre-constructed metadata and value buffers
 /// let (metadata, value) = {
 ///   let mut vb = VariantBuilder::new();
-///   let mut obj = vb.new_object();
-///   obj.insert("foo", "bar");
-///   obj.finish().unwrap();
+///   vb.new_object()
+///     .with_field("foo", "bar")
+///     .finish()
+///     .unwrap();
 ///   vb.finish()
 /// };
 /// builder.append_variant_buffers(&metadata, &value);