install: Add a test to cover recent changes

tests/by-util/test_install.rs

@@ -4,9 +4,10 @@
 // file that was distributed with this source code.
 // spell-checker:ignore (words) helloworld nodir objdump n'source
 
-use crate::common::util::{is_ci, TestScenario};
+use crate::common::util::{is_ci, run_ucmd_as_root, TestScenario};
 use filetime::FileTime;
-use std::os::unix::fs::PermissionsExt;
+use std::fs;
+use std::os::unix::fs::{MetadataExt, PermissionsExt};
 #[cfg(not(any(windows, target_os = "freebsd")))]
 use std::process::Command;
 #[cfg(any(target_os = "linux", target_os = "android"))]
@@ -1613,3 +1614,55 @@ fn test_target_file_ends_with_slash() {
  .fails()
  .stderr_contains("failed to access 'dir/target_file/': Not a directory");
 }
+
+#[test]
+// Matches part of tests/install/install-C-root.sh
+fn test_install_root() {
+ let ts = TestScenario::new(util_name!());
+ let at = ts.fixtures.clone();
+ at.touch("a");
+
+ let run_and_check = |args: &[&str], expected_uid: u32, expected_gid: u32| {
+ if let Ok(result) = run_ucmd_as_root(&ts, args) {
+ result.success();
+ assert!(at.file_exists("b"));
+ assert!(result.stdout_str().contains("'a' -> 'b'\n"));
+
+ // Check the UID and GID of the file
+ let metadata = fs::metadata(at.plus("b")).unwrap();
+ assert_eq!(metadata.uid(), expected_uid);
+ assert_eq!(metadata.gid(), expected_gid);
+ } else {
+ print!("Test skipped; requires root user");
+ }
+ };
+
+ run_and_check(&["-Cv", "-o1", "-g1", "a", "b"], 1, 1);
+ run_and_check(&["-Cv", "-o2", "-g1", "a", "b"], 2, 1);
+ run_and_check(&["-Cv", "-o2", "-g2", "a", "b"], 2, 2);
+}
+
+#[test]
+fn test_install_as_root() {
+ // Matches part of tests/install/install-C-root.sh
+ let ts = TestScenario::new(util_name!());
+ let at = ts.fixtures.clone();
+ at.touch("a");
+
+ let run_and_check_uid_gid = |args: &[&str], expected_uid: u32, expected_gid: u32| {
+ if let Ok(result) = run_ucmd_as_root(&ts, args) {
+ result.success();
+ assert!(at.file_exists("b"));
+
+ let metadata = fs::metadata(at.plus("b")).unwrap();
+ assert_eq!(metadata.uid(), expected_uid);
+ assert_eq!(metadata.gid(), expected_gid);
+ } else {
+ print!("Test skipped; requires root user");
+ }
+ };
+
+ run_and_check_uid_gid(&["-Cv", "-o2", "a", "b"], 2, 0);
+ run_and_check_uid_gid(&["-Cv", "a", "b"], 0, 0);
+ run_and_check_uid_gid(&["-Cv", "a", "b"], 0, 0);
+}