From 0ab0f2761feeb2e47d897d2e1f94be3092c651cf Mon Sep 17 00:00:00 2001
From: Niyaz Nigmatullin <niyaz.nigmatullin@gmail.com>
Date: Mon, 18 Jul 2022 00:22:01 +0300
Subject: [PATCH] tests/ln: add test for same file

---
 tests/by-util/test_ln.rs | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/tests/by-util/test_ln.rs b/tests/by-util/test_ln.rs
index 042aa1e5d..aabec0352 100644
--- a/tests/by-util/test_ln.rs
+++ b/tests/by-util/test_ln.rs
@@ -702,3 +702,16 @@ fn test_hard_logical_dir_fail() {
         .fails()
         .stderr_contains("failed to link 'link-to-dir'");
 }
+
+#[test]
+fn test_symlink_remove_existing_same_src_and_dest() {
+    let (at, mut ucmd) = at_and_ucmd!();
+    at.touch("a");
+    at.write("a", "sample");
+    ucmd.args(&["-sf", "a", "a"])
+        .fails()
+        .code_is(1)
+        .stderr_contains("Same file");
+    assert!(at.file_exists("a") && !at.symlink_exists("a"));
+    assert_eq!(at.read("a"), "sample");
+}