tests ~ reorganize tests

tests/by-util/test_test.rs

@@ -0,0 +1,27 @@
+//
+// This file is part of the uutils coreutils package.
+//
+// (c) mahkoh (ju.orth [at] gmail [dot] com)
+//
+// For the full copyright and license information, please view the LICENSE
+// file that was distributed with this source code.
+//
+
+use crate::common::util::*;
+
+#[test]
+fn test_op_prec_and_or_1() {
+    new_ucmd!().args(&[" ", "-o", "", "-a", ""]).succeeds();
+}
+
+#[test]
+fn test_op_prec_and_or_2() {
+    new_ucmd!()
+        .args(&["", "-a", "", "-o", " ", "-a", " "])
+        .succeeds();
+}
+
+#[test]
+fn test_or_as_filename() {
+    new_ucmd!().args(&["x", "-a", "-z", "-o"]).fails();
+}