test(uname): Add uname tests

GNUmakefile

@@ -205,6 +205,7 @@ TEST_PROGS  := \
 	true \
 	truncate \
 	tsort \
+	uname \
 	unexpand \
 	uniq \
 	unlink \

tests/test_uname.rs

@@ -0,0 +1,17 @@
+use common::util::*;
+
+#[test]
+fn test_uname_compatible() {
+    let (_, mut ucmd) = at_and_ucmd!();
+
+    let result = ucmd.arg("-a").run();
+    assert!(result.success);
+}
+
+#[test]
+fn test_uname_name() {
+    let (_, mut ucmd) = at_and_ucmd!();
+
+    let result = ucmd.arg("-n").run();
+    assert!(result.success);
+}

tests/tests.rs

@@ -29,6 +29,7 @@ unix_only! {
     "pathchk", test_pathchk;
     "pinky", test_pinky;
     "stdbuf", test_stdbuf;
+    "uname", test_uname;
     "unlink", test_unlink;
     "who", test_who;
     // Be aware of the trailing semicolon after the last item