diff --git a/src/io/parquet/write/nested/def.rs b/src/io/parquet/write/nested/def.rs
index 4426d3a3cfe..2cadc1a25b9 100644
--- a/src/io/parquet/write/nested/def.rs
+++ b/src/io/parquet/write/nested/def.rs
@@ -548,8 +548,6 @@ mod tests {
     #[test]
     fn nested_list_struct_list_nullable() {
         /*
-            [List(ListNested { is_optional: true, offsets: [0, 2, 2, 5, 8, 8, 11, 11, 12], validity: Some([0b10111101]) }), Struct(Some([0b11110111, 0b____1111]), true, 12), List(ListNested { is_optional: true, offsets: [0, 1, 2, 3, 3, 4, 4, 4, 4, 5, 6, 8, 8], validity: Some([0b00010111, 0b____1111]) }), Primitive(Some([0b11011111]), true, 8)]
-
             [
             [{"a": ["a"]}, {"a": ["b"]}],
             None,
@@ -577,7 +575,6 @@ mod tests {
                 offsets: &[0, 2, 2, 5, 8, 8, 11, 11, 12],
                 validity: Some(&a),
             }),
-            // 0b11110111, 0b____1111
             Nested::Struct(Some(&b), true, 12),
             Nested::List(ListNested {
                 is_optional: true,
@@ -586,24 +583,6 @@ mod tests {
             }),
             Nested::Primitive(Some(&d), true, 8),
         ];
-        /*
-                0 6
-                1 6
-                0 0
-                0 6
-                1 2
-                1 6
-                0 3
-                1 3
-                1 3
-                0 1
-                0 6
-                1 5
-                1 6
-                2 6
-                0 0
-                0 4
-        */
         let expected = vec![6, 6, 0, 6, 2, 6, 3, 3, 3, 1, 6, 5, 6, 6, 0, 4];
 
         test(nested, expected)
diff --git a/src/io/parquet/write/nested/rep.rs b/src/io/parquet/write/nested/rep.rs
index 35841648dd6..6dd8414792e 100644
--- a/src/io/parquet/write/nested/rep.rs
+++ b/src/io/parquet/write/nested/rep.rs
@@ -176,30 +176,6 @@ mod tests {
             }),
             Nested::Primitive(None, false, 12),
         ];
-        // [2, 0, 3, 3, 0, 3, 0, 1]
-        // 1)
-        //  a) 2 => remaining = [2], level = 1, total = 1
-        //  b) return 0
-        //  c) remaining = [1], total = 0
-        // 2)
-        //  a)
-        //  b) return 1
-        //  c) remaining = [0], => 1
-
-        //
-        /*
-        [
-            [False, True],
-            [],
-            [True, True, False],
-            [True, False, True],
-            [],
-            [False, False, False],
-            [],
-            [True],
-        ]
-        */
-
         let expected = vec![0u32, 1, 0, 0, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 0];
 
         test(nested, expected)
@@ -369,24 +345,6 @@ mod tests {
 
     #[test]
     fn list_struct_list_3() {
-        /*
-        [
-            [{"a": []}],
-            [],
-        ]
-        // reps: [0, 0]
-
-        // lengths: [[1, 0], [0]]
-        // 1)
-        //  a1) 1 => remaining = [1, 0], level = 1, total = 1
-        //  a2) 0 => remaining = [1, 0], level = 1, total = 1
-        //  b) return 0
-        //  c) remaining = [1, 0], level = 1, total = 0
-        // 2)
-        //  a) 0 => remaining = [1, 0], level = 1, total = 0
-        //  b) return 1
-        //  c) remaining = [0], => 1
-        */
         let nested = vec![
             Nested::List(ListNested {
                 is_optional: true,