refactoring: sort is builtin tests

src/builtins/mod.rs

@@ -70,18 +70,23 @@ mod tests {
     use super::*;
 
     #[test]
-    fn test_is_builtin_exit() {
-        assert_eq!(is_builtin("exit"), true);
+    fn test_is_builtin_cd() {
+        assert_eq!(is_builtin("cd"), true);
     }
 
     #[test]
-    fn test_is_builtin_cd() {
-        assert_eq!(is_builtin("cd"), true);
+    fn test_is_builtin_change_prompt() {
+        assert_eq!(is_builtin("change-prompt"), true);
     }
 
     #[test]
-    fn test_is_builtin_pwd() {
-        assert_eq!(is_builtin("pwd"), true);
+    fn test_is_builtin_exit() {
+        assert_eq!(is_builtin("exit"), true);
+    }
+
+    #[test]
+    fn test_is_builtin_fetch() {
+        assert_eq!(is_builtin("fetch"), true);
     }
 
     #[test]
@@ -100,8 +105,13 @@ mod tests {
     }
 
     #[test]
-    fn test_is_builtin_change_prompt() {
-        assert_eq!(is_builtin("change-prompt"), true);
+    fn test_is_builtin_pwd() {
+        assert_eq!(is_builtin("pwd"), true);
+    }
+
+    #[test]
+    fn test_is_builtin_segfault() {
+        assert_eq!(is_builtin("segfault"), true);
     }
 
     #[test]
@@ -114,16 +124,6 @@ mod tests {
         assert_eq!(is_builtin("quote"), true);
     }
 
-    #[test]
-    fn test_is_builtin_fetch() {
-        assert_eq!(is_builtin("fetch"), true);
-    }
-
-    #[test]
-    fn test_is_builtin_segfault() {
-        assert_eq!(is_builtin("segfault"), true);
-    }
-
     #[test]
     fn test_is_builtin_notabuiltin() {
         assert_eq!(is_builtin("notabuiltin"), false)