diff --git a/tlmcmddb-csv/src/tlm.rs b/tlmcmddb-csv/src/tlm.rs
index 08c02eb..5448c29 100644
--- a/tlmcmddb-csv/src/tlm.rs
+++ b/tlmcmddb-csv/src/tlm.rs
@@ -13,3 +13,56 @@ pub fn parse_csv<R: Read>(telemetry_name: String, rdr: R) -> Result<tlmcmddb::tl
     let mut iter = csv.records();
     telemetry::parse(telemetry_name, &mut iter)
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    use std::io::Cursor;
+
+    fn parse_testdata() -> Result<tlmcmddb::tlm::Telemetry> {
+        let csv = {
+            let header = include_bytes!("../fixtures/TLM_DB/valid_metadata.csv");
+            let body = include_bytes!("../fixtures/TLM_DB/valid_body.csv");
+
+            let mut csv = header.to_vec();
+            csv.extend_from_slice(body);
+            Cursor::new(csv)
+        };
+
+        parse_csv("".to_string(), csv)
+    }
+
+    #[test]
+    fn test_read_csv() {
+        let expected: tlmcmddb::tlm::Telemetry = {
+            let json = include_bytes!("../fixtures/TLM_DB/valid.json");
+            serde_json::from_slice(json).unwrap()
+        };
+
+        let actual = parse_testdata().unwrap();
+
+        assert_eq!(expected, actual)
+
+        // make snapshot
+        // serde_json::to_writer_pretty(
+        //     std::fs::OpenOptions::new()
+        //         .create(true)
+        //         .write(true)
+        //         .truncate(true)
+        //         .open("fixtures/TLM_DB/valid.json")
+        //         .unwrap(),
+        //     &actual,
+        // );
+    }
+
+    #[test]
+    fn test_ser_json() {
+        let expected = include_str!("../fixtures/TLM_DB/valid.json");
+
+        let tlm = parse_testdata().unwrap();
+        let actual = serde_json::to_string_pretty(&tlm).unwrap();
+
+        assert_eq!(expected, actual)
+    }
+}