tests ~ reorganize tests

tests/by-util/test_fmt.rs

@@ -0,0 +1,37 @@
+use crate::common::util::*;
+
+#[test]
+fn test_fmt() {
+    let result = new_ucmd!().arg("one-word-per-line.txt").run();
+    //.stdout_is_fixture("call_graph.expected");
+    assert_eq!(
+        result.stdout.trim(),
+        "this is a file with one word per line"
+    );
+}
+
+#[test]
+fn test_fmt_q() {
+    let result = new_ucmd!().arg("-q").arg("one-word-per-line.txt").run();
+    //.stdout_is_fixture("call_graph.expected");
+    assert_eq!(
+        result.stdout.trim(),
+        "this is a file with one word per line"
+    );
+}
+
+/* #[test]
+ Fails for now, see https://github.com/uutils/coreutils/issues/1501
+fn test_fmt_w() {
+    let result = new_ucmd!()
+        .arg("-w")
+        .arg("10")
+        .arg("one-word-per-line.txt")
+        .run();
+        //.stdout_is_fixture("call_graph.expected");
+    assert_eq!(result.stdout.trim(), "this is a file with one word per line");
+}
+
+
+fmt is pretty broken in general, needs more works to have more tests
+ */