diff --git a/src/uu/dd/src/parseargs.rs b/src/uu/dd/src/parseargs.rs
index 081055cf9..d8639fca9 100644
--- a/src/uu/dd/src/parseargs.rs
+++ b/src/uu/dd/src/parseargs.rs
@@ -807,15 +807,16 @@ mod tests {
     #[test]
     fn test_parse_bytes_with_opt_multiplier() {
         assert_eq!(parse_bytes_with_opt_multiplier("123").unwrap(), 123);
-        assert_eq!(parse_bytes_with_opt_multiplier("123c").unwrap(), 123 * 1);
+        assert_eq!(parse_bytes_with_opt_multiplier("123c").unwrap(), 123); // 123 * 1
         assert_eq!(parse_bytes_with_opt_multiplier("123w").unwrap(), 123 * 2);
         assert_eq!(parse_bytes_with_opt_multiplier("123b").unwrap(), 123 * 512);
         assert_eq!(parse_bytes_with_opt_multiplier("123x3").unwrap(), 123 * 3);
         assert_eq!(parse_bytes_with_opt_multiplier("123k").unwrap(), 123 * 1024);
-        assert_eq!(parse_bytes_with_opt_multiplier("1x2x3").unwrap(), 1 * 2 * 3);
+        assert_eq!(parse_bytes_with_opt_multiplier("1x2x3").unwrap(), 6); // 1 * 2 * 3
+
         assert_eq!(
             parse_bytes_with_opt_multiplier("1wx2cx3w").unwrap(),
-            (1 * 2) * (2 * 1) * (3 * 2)
+            2 * 2 * (3 * 2) // (1 * 2) * (2 * 1) * (3 * 2)
         );
         assert!(parse_bytes_with_opt_multiplier("123asdf").is_err());
     }
diff --git a/src/uu/df/src/table.rs b/src/uu/df/src/table.rs
index 65d390dd2..c8ac4989e 100644
--- a/src/uu/df/src/table.rs
+++ b/src/uu/df/src/table.rs
@@ -577,7 +577,7 @@ mod tests {
             inodes_usage: Some(0.2),
         };
         assert_eq!(
-            DisplayRow::new(row, &options).to_string(),
+            DisplayRow::new(&row, &options).to_string(),
             "my_device                 100           25           75   26% my_mount        "
         );
     }
diff --git a/src/uu/split/src/number.rs b/src/uu/split/src/number.rs
index d5427e2ca..c7557271d 100644
--- a/src/uu/split/src/number.rs
+++ b/src/uu/split/src/number.rs
@@ -479,7 +479,7 @@ mod tests {
         fn num(n: usize) -> Number {
             let mut number = Number::DynamicWidth(DynamicWidthNumber::new(16));
             for _ in 0..n {
-                number.increment().unwrap()
+                number.increment().unwrap();
             }
             number
         }
diff --git a/tests/by-util/test_sort.rs b/tests/by-util/test_sort.rs
index 5ae56b29e..c33d1a986 100644
--- a/tests/by-util/test_sort.rs
+++ b/tests/by-util/test_sort.rs
@@ -338,24 +338,20 @@ fn test_dictionary_order() {
 
 #[test]
 fn test_dictionary_order2() {
-    for non_dictionary_order2_param in &["-d"] {
-        new_ucmd!()
-            .pipe_in("a👦🏻aa\tb\naaaa\tb") // spell-checker:disable-line
-            .arg(non_dictionary_order2_param) // spell-checker:disable-line
-            .succeeds()
-            .stdout_only("a👦🏻aa\tb\naaaa\tb\n"); // spell-checker:disable-line
-    }
+    new_ucmd!()
+        .pipe_in("a👦🏻aa\tb\naaaa\tb") // spell-checker:disable-line
+        .arg("-d")
+        .succeeds()
+        .stdout_only("a👦🏻aa\tb\naaaa\tb\n"); // spell-checker:disable-line
 }
 
 #[test]
 fn test_non_printing_chars() {
-    for non_printing_chars_param in &["-i"] {
-        new_ucmd!()
-            .pipe_in("a👦🏻aa\naaaa") // spell-checker:disable-line
-            .arg(non_printing_chars_param) // spell-checker:disable-line
-            .succeeds()
-            .stdout_only("a👦🏻aa\naaaa\n"); // spell-checker:disable-line
-    }
+    new_ucmd!()
+        .pipe_in("a👦🏻aa\naaaa") // spell-checker:disable-line
+        .arg("-i")
+        .succeeds()
+        .stdout_only("a👦🏻aa\naaaa\n"); // spell-checker:disable-line
 }
 
 #[test]
@@ -486,14 +482,12 @@ fn test_default_unsorted_ints2() {
 
 #[test]
 fn test_numeric_unique_ints2() {
-    for numeric_unique_sort_param in &["-nu"] {
-        let input = "9\n9\n8\n1\n";
-        new_ucmd!()
-            .arg(numeric_unique_sort_param)
-            .pipe_in(input)
-            .succeeds()
-            .stdout_only("1\n8\n9\n");
-    }
+    let input = "9\n9\n8\n1\n";
+    new_ucmd!()
+        .arg("-nu")
+        .pipe_in(input)
+        .succeeds()
+        .stdout_only("1\n8\n9\n");
 }
 
 #[test]
diff --git a/tests/by-util/test_who.rs b/tests/by-util/test_who.rs
index 8c3bba25c..2687539f1 100644
--- a/tests/by-util/test_who.rs
+++ b/tests/by-util/test_who.rs
@@ -69,10 +69,8 @@ fn test_login() {
 #[test]
 fn test_m() {
     let ts = TestScenario::new(util_name!());
-    for opt in &["-m"] {
-        let expected_stdout = unwrap_or_return!(expected_result(&ts, &[opt])).stdout_move_str();
-        ts.ucmd().arg(opt).succeeds().stdout_is(expected_stdout);
-    }
+    let expected_stdout = unwrap_or_return!(expected_result(&ts, &["-m"])).stdout_move_str();
+    ts.ucmd().arg("-m").succeeds().stdout_is(expected_stdout);
 }
 
 #[cfg(unix)]