diff --git a/src/lib/matcher.rs b/src/lib/matcher.rs
index 6bcabee..23ef5ae 100644
--- a/src/lib/matcher.rs
+++ b/src/lib/matcher.rs
@@ -4,8 +4,8 @@ use std::ops::Range;
 use crate::color::{color_background, color_head};
 use crate::color::{COLOR_BACKGROUND, COLOR_BASES, COLOR_QUALS};
 use crate::reverse_complement;
-use crate::DNA_BASES;
 use crate::AMINO_ACIDS;
+use crate::DNA_BASES;
 use anyhow::{bail, Context, Result};
 use bstr::ByteSlice;
 use regex::bytes::{Regex, RegexBuilder, RegexSet, RegexSetBuilder};
@@ -622,20 +622,27 @@ pub mod tests {
     #[rstest]
     #[case("AGTGTGATG", false)]
     #[case("QRNQRNQRN", true)]
-    fn test_validate_fixed_pattern_is_ok(
-        #[case] pattern: &str,
-        #[case] protein: bool) {
+    fn test_validate_fixed_pattern_is_ok(#[case] pattern: &str, #[case] protein: bool) {
         let result = validate_fixed_pattern(&pattern, protein);
         assert!(result.is_ok())
     }
 
     #[rstest]
-    #[case("AXGTGTGATG", false, "Fixed pattern must contain only DNA bases: A .. [X] .. GTGTGATG")]
-    #[case("QRNQRNZQRN", true, "Fixed pattern must contain only amino acids: QRNQRN .. [Z] .. QRN")]
+    #[case(
+        "AXGTGTGATG",
+        false,
+        "Fixed pattern must contain only DNA bases: A .. [X] .. GTGTGATG"
+    )]
+    #[case(
+        "QRNQRNZQRN",
+        true,
+        "Fixed pattern must contain only amino acids: QRNQRN .. [Z] .. QRN"
+    )]
     fn test_validate_fixed_pattern_error(
         #[case] pattern: &str,
         #[case] protein: bool,
-        #[case] msg: &str) {
+        #[case] msg: &str,
+    ) {
         let result = validate_fixed_pattern(&pattern, protein);
         let inner = result.unwrap_err().to_string();
         assert_eq!(inner, msg);
diff --git a/src/main.rs b/src/main.rs
index f662cea..81be97c 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -805,7 +805,7 @@ pub mod tests {
         let sequence_match = expected_seq == return_sequences;
         assert_eq!(sequence_match, expected_bool);
     }
-    
+
     // ############################################################################################
     //Tests match with protein (not DNA!)
     // ############################################################################################
@@ -819,14 +819,11 @@ pub mod tests {
     #[case(vec!["^Q", "^F"], vec!["QFPQFP"])] // unpaired: regex set with two matches
     #[case(vec!["^Q", "^A"], vec!["AAAA", "ATAT", "AAAT", "QFPQFP"])] // unpaired: regex set with two matches
     #[case(vec!["^M", "^K"], vec![])] // unpaired: regex set with no matches
-    fn test_protein_ok(
-        #[case] pattern: Vec<&str>,
-        #[case] expected_seq: Vec<&str>,
-    ) {
+    fn test_protein_ok(#[case] pattern: Vec<&str>, #[case] expected_seq: Vec<&str>) {
         let dir = TempDir::new().unwrap();
-        let seqs = vec![
-            vec!["AAAA", "TTTT", "ATAT", "TATA", "AAAT", "TTTA", "QFPQFP"],
-        ];
+        let seqs = vec![vec![
+            "AAAA", "TTTT", "ATAT", "TATA", "AAAT", "TTTA", "QFPQFP",
+        ]];
         let out_path = dir.path().join(String::from("output.fq"));
         let result_path = &out_path.clone();
         let pattern = pattern.iter().map(|&s| s.to_owned()).collect::<Vec<_>>();
@@ -880,7 +877,7 @@ pub mod tests {
         let result = fqgrep_from_opts(&opts);
         assert_eq!(result.unwrap(), expected);
     }
-    
+
     //
     // ############################################################################################
     // Tests that an error is returned when protein and reverse_complement are both present