diff --git a/crates/turborepo-lib/src/rewrite_json.rs b/crates/turborepo-lib/src/rewrite_json.rs
index 7a8c0d27373029..cdc9641fcdb331 100644
--- a/crates/turborepo-lib/src/rewrite_json.rs
+++ b/crates/turborepo-lib/src/rewrite_json.rs
@@ -326,3 +326,86 @@ fn find_all_paths<'a>(
 
     return ranges;
 }
+
+#[cfg(test)]
+mod test {
+    use crate::rewrite_json::{set_path, unset_path};
+
+    macro_rules! set_tests {
+        ($($name:ident: $value:expr,)*) => {
+        $(
+            #[test]
+            fn $name() {
+                let (json_document_string, expected) = $value;
+                assert_eq!(expected, set_path(json_document_string, vec!["parent", "child"], "\"Junior\"").unwrap());
+            }
+        )*
+        }
+    }
+
+    macro_rules! unset_tests {
+        ($($name:ident: $value:expr,)*) => {
+        $(
+            #[test]
+            fn $name() {
+                let (json_document_string, path, expected) = $value;
+                assert_eq!(expected, unset_path(json_document_string, path).unwrap());
+            }
+        )*
+        }
+    }
+
+    set_tests! {
+        empty_object: (
+            "{}",
+            "{\"parent\":{\"child\":\"Junior\"}}"
+        ),
+        populated_object: (
+            "{ \"other\": \"thing\" }",
+            "{\"parent\":{\"child\":\"Junior\"}, \"other\": \"thing\" }"
+        ),
+        trailing_comma: (
+            "{ \"trailing\": \"comma\", }",
+            "{\"parent\":{\"child\":\"Junior\"}, \"trailing\": \"comma\", }"
+        ),
+        existing_primitive: (
+            "{ \"parent\": \"thing\" }",
+            "{ \"parent\": {\"child\":\"Junior\"} }"
+        ),
+        existing_empty_object: (
+            "{ \"parent\": {} }",
+            "{ \"parent\": {\"child\":\"Junior\"} }"
+        ),
+        existing_matching_object: (
+            "{ \"parent\": { \"child\": \"Jerry\" } }",
+            "{ \"parent\": { \"child\": \"Junior\" } }"
+        ),
+        existing_bonus_child: (
+            "{ \"parent\": { \"child\": { \"grandchild\": \"Morty\" } } }",
+            "{ \"parent\": { \"child\": \"Junior\" } }"
+        ),
+    }
+
+    unset_tests! {
+        nonexistent_path: (
+            r#"{ "before": {}, "experimentalSpaces": { "id": "one" }, "experimentalSpaces": { "id": "two" }, "after": {} }"#,
+            vec!["experimentalSpaces", "id", "nope"],
+            "{ \"before\": {}, \"experimentalSpaces\": { \"id\": \"one\" }, \"experimentalSpaces\": { \"id\": \"two\" }, \"after\": {} }",
+        ),
+        leaf_node: (
+            r#"{ "before": {}, "experimentalSpaces": { "id": "one" }, "experimentalSpaces": { "id": "two" }, "after": {} }"#,
+            vec!["experimentalSpaces", "id"],
+            "{ \"before\": {}, \"experimentalSpaces\": {  }, \"experimentalSpaces\": {  }, \"after\": {} }",
+        ),
+        parent_node: (
+            r#"{ "before": {}, "experimentalSpaces": { "id": "one" }, "middle": {}, "experimentalSpaces": { "id": "two" }, "after": {} }"#,
+            vec!["experimentalSpaces"],
+            "{ \"before\": {},\"middle\": {},\"after\": {} }",
+        ),
+        empty_path: (
+            r#"{ "before": {}, "experimentalSpaces": { "id": "one" }, "experimentalSpaces": { "id": "two" }, "after": {} }"#,
+            vec![],
+            "{ \"before\": {}, \"experimentalSpaces\": { \"id\": \"one\" }, \"experimentalSpaces\": { \"id\": \"two\" }, \"after\": {} }",
+        ),
+    }
+}