Impl test for listing invalid UTF8 trash items

* Both UTF8 tests are gated to non-macOS, non-Android, and non-iOS
  Unixes.

src/tests.rs

@@ -29,8 +29,9 @@ mod os_limited {
     use super::{get_unique_name, init_logging};
     use serial_test::serial;
     use std::collections::{hash_map::Entry, HashMap};
-    use std::ffi::OsString;
+    use std::ffi::{OsStr, OsString};
     use std::fs::File;
+    use std::os::unix::ffi::OsStringExt;
 
     use crate as trash;
 
@@ -94,6 +95,22 @@ mod os_limited {
         let _ = trash::os_limited::purge_all(items.iter().flat_map(|(_name, item)| item));
     }
 
+    #[test]
+    #[serial]
+    fn list_invalid_utf8() {
+        let mut name = OsStr::new(&get_unique_name()).to_os_string().into_encoded_bytes();
+        name.push(168);
+        let name = OsString::from_vec(name);
+        File::create(&name).unwrap();
+
+        // Delete, list, and remove file with an invalid UTF8 name
+        // Listing items is already exhaustively checked above, so this test is mainly concerned
+        // with checking that listing non-Unicode names does not panic
+        trash::delete(&name).unwrap();
+        let item = trash::os_limited::list().unwrap().into_iter().find(|item| item.name == name).unwrap();
+        let _ = trash::os_limited::purge_all([item]);
+    }
+
     #[test]
     fn purge_empty() {
         init_logging();

tests/trash.rs

@@ -139,6 +139,7 @@ fn create_remove_single_file() {
     assert!(File::open(&name).is_err());
 }
 
+#[cfg(all(unix, not(target_os = "macos"), not(target_os = "ios"), not(target_os = "android")))]
 #[test]
 #[serial]
 fn create_remove_single_file_invalid_utf8() {