CLI: test that plain escapes controls only

apps/figcraft-cli/src/files.rs

@@ -505,6 +505,12 @@ pub fn connect_publish(file: &str, mappings: &str, dry_run: bool) -> CliResult<E
 mod tests {
     use super::*;
 
+    #[test]
+    fn plain_escapes_controls_and_leaves_quotes_and_paths() {
+        assert_eq!(plain("a\u{1b}[31m\nb"), r"a\u{1b}[31m\nb");
+        assert_eq!(plain(r"Bob's C:\files"), r"Bob's C:\files");
+    }
+
     #[test]
     fn script_formats() {
         assert_eq!(parse_script(r#"[{"command":"a"},{"command":"b","params":{"x":1}}]"#).unwrap().len(), 2);