From 7ffc7d073cc5b14fbafbf4f03af48d4550e7539a Mon Sep 17 00:00:00 2001
From: Michael Debertol <michael.debertol@gmail.com>
Date: Wed, 2 Jun 2021 18:08:09 +0200
Subject: [PATCH] cp: test that file descriptors are closed

---
 tests/by-util/test_cp.rs              | 16 +++++++++++++++-
 tests/fixtures/cp/dir_with_10_files/0 |  0
 tests/fixtures/cp/dir_with_10_files/1 |  0
 tests/fixtures/cp/dir_with_10_files/2 |  0
 tests/fixtures/cp/dir_with_10_files/3 |  0
 tests/fixtures/cp/dir_with_10_files/4 |  0
 tests/fixtures/cp/dir_with_10_files/5 |  0
 tests/fixtures/cp/dir_with_10_files/6 |  0
 tests/fixtures/cp/dir_with_10_files/7 |  0
 tests/fixtures/cp/dir_with_10_files/8 |  0
 tests/fixtures/cp/dir_with_10_files/9 |  0
 11 files changed, 15 insertions(+), 1 deletion(-)
 create mode 100644 tests/fixtures/cp/dir_with_10_files/0
 create mode 100644 tests/fixtures/cp/dir_with_10_files/1
 create mode 100644 tests/fixtures/cp/dir_with_10_files/2
 create mode 100644 tests/fixtures/cp/dir_with_10_files/3
 create mode 100644 tests/fixtures/cp/dir_with_10_files/4
 create mode 100644 tests/fixtures/cp/dir_with_10_files/5
 create mode 100644 tests/fixtures/cp/dir_with_10_files/6
 create mode 100644 tests/fixtures/cp/dir_with_10_files/7
 create mode 100644 tests/fixtures/cp/dir_with_10_files/8
 create mode 100644 tests/fixtures/cp/dir_with_10_files/9

diff --git a/tests/by-util/test_cp.rs b/tests/by-util/test_cp.rs
index c56e1ca57..ff607f984 100644
--- a/tests/by-util/test_cp.rs
+++ b/tests/by-util/test_cp.rs
@@ -1,4 +1,4 @@
-// spell-checker:ignore (flags) reflink (fs) tmpfs
+// spell-checker:ignore (flags) reflink (fs) tmpfs (linux) rlimit Rlim NOFILE
 
 use crate::common::util::*;
 #[cfg(not(windows))]
@@ -14,6 +14,8 @@ use std::os::windows::fs::symlink_file;
 
 #[cfg(target_os = "linux")]
 use filetime::FileTime;
+#[cfg(target_os = "linux")]
+use rlimit::Resource;
 #[cfg(not(windows))]
 use std::env;
 #[cfg(target_os = "linux")]
@@ -1276,3 +1278,15 @@ fn test_cp_reflink_insufficient_permission() {
         .fails()
         .stderr_only("cp: 'unreadable' -> 'existing_file.txt': Permission denied (os error 13)");
 }
+
+#[cfg(target_os = "linux")]
+#[test]
+fn test_closes_file_descriptors() {
+    new_ucmd!()
+        .arg("-r")
+        .arg("--reflink=auto")
+        .arg("dir_with_10_files/")
+        .arg("dir_with_10_files_new/")
+        .with_limit(Resource::NOFILE, 9, 9)
+        .succeeds();
+}
diff --git a/tests/fixtures/cp/dir_with_10_files/0 b/tests/fixtures/cp/dir_with_10_files/0
new file mode 100644
index 000000000..e69de29bb
diff --git a/tests/fixtures/cp/dir_with_10_files/1 b/tests/fixtures/cp/dir_with_10_files/1
new file mode 100644
index 000000000..e69de29bb
diff --git a/tests/fixtures/cp/dir_with_10_files/2 b/tests/fixtures/cp/dir_with_10_files/2
new file mode 100644
index 000000000..e69de29bb
diff --git a/tests/fixtures/cp/dir_with_10_files/3 b/tests/fixtures/cp/dir_with_10_files/3
new file mode 100644
index 000000000..e69de29bb
diff --git a/tests/fixtures/cp/dir_with_10_files/4 b/tests/fixtures/cp/dir_with_10_files/4
new file mode 100644
index 000000000..e69de29bb
diff --git a/tests/fixtures/cp/dir_with_10_files/5 b/tests/fixtures/cp/dir_with_10_files/5
new file mode 100644
index 000000000..e69de29bb
diff --git a/tests/fixtures/cp/dir_with_10_files/6 b/tests/fixtures/cp/dir_with_10_files/6
new file mode 100644
index 000000000..e69de29bb
diff --git a/tests/fixtures/cp/dir_with_10_files/7 b/tests/fixtures/cp/dir_with_10_files/7
new file mode 100644
index 000000000..e69de29bb
diff --git a/tests/fixtures/cp/dir_with_10_files/8 b/tests/fixtures/cp/dir_with_10_files/8
new file mode 100644
index 000000000..e69de29bb
diff --git a/tests/fixtures/cp/dir_with_10_files/9 b/tests/fixtures/cp/dir_with_10_files/9
new file mode 100644
index 000000000..e69de29bb