chgrp: add tests

tests/test_chgrp.rs

@@ -0,0 +1,102 @@
+use common::util::*;
+
+static UTIL_NAME: &'static str = "chgrp";
+fn new_ucmd() -> UCommand {
+    TestScenario::new(UTIL_NAME).ucmd()
+}
+
+#[test]
+fn test_invalid_option() {
+    new_ucmd()
+        .arg("-w")
+        .arg("/")
+        .fails();
+}
+
+static DIR: &'static str = "/tmp";
+
+#[test]
+fn test_invalid_group() {
+    new_ucmd()
+        .arg("nosuchgroup")
+        .arg("/")
+        .fails()
+        .stderr_is("chgrp: invalid group: nosuchgroup");
+}
+
+#[test]
+fn test_1() {
+    new_ucmd()
+        .arg("bin")
+        .arg(DIR)
+        .fails()
+        .stderr_is("chgrp: changing group of '/tmp': Operation not permitted (os error 1)");
+}
+
+#[test]
+fn test_fail_silently() {
+    for opt in &["-f", "--silent", "--quiet"] {
+        new_ucmd()
+            .arg(opt)
+            .arg("bin")
+            .arg(DIR)
+            .run()
+            .fails_silently();
+    }
+}
+
+#[test]
+fn test_preserve_root() {
+    new_ucmd()
+        .arg("--preserve-root")
+        .arg("-R")
+        .arg("bin").arg("/")
+        .fails()
+        .stderr_is("chgrp: it is dangerous to operate recursively on '/'\nchgrp: use --no-preserve-root to override this failsafe");
+}
+
+#[test]
+#[cfg(target_os = "linux")]
+fn test_reference() {
+    new_ucmd()
+        .arg("-v")
+        .arg("--reference=/etc/passwd")
+        .arg("/etc")
+        .fails()
+        .stderr_is("chgrp: changing group of '/etc': Operation not permitted (os error 1)\n")
+        .stdout_is("failed to change group of /etc from root to root\n");
+}
+
+#[test]
+#[cfg(target_os = "macos")]
+fn test_reference() {
+    new_ucmd()
+        .arg("-v")
+        .arg("--reference=/etc/passwd")
+        .arg("/etc")
+        .succeeds();
+}
+
+#[test]
+#[cfg(target_os = "linux")]
+fn test_big_p() {
+    new_ucmd()
+        .arg("-RP")
+        .arg("bin")
+        .arg("/proc/self/cwd")
+        .fails()
+        .stderr_is("chgrp: changing group of '/proc/self/cwd': Operation not permitted (os error 1)\n");
+}
+
+#[test]
+#[cfg(target_os = "linux")]
+fn test_big_h() {
+    assert!(new_ucmd()
+        .arg("-RH")
+        .arg("bin")
+        .arg("/proc/self/fd")
+        .fails()
+        .stderr
+        .lines()
+        .fold(0, |acc, _| acc + 1) > 1);
+}

tests/tests.rs

@@ -14,6 +14,7 @@ macro_rules! unix_only {
 unix_only! {
     "chmod", test_chmod;
     "chown", test_chown;
+    "chgrp", test_chgrp;
     "install", test_install;
     "mv", test_mv;
     "pathchk", test_pathchk;