From 332767e548a1d743f556372c1e1dd571089a29da Mon Sep 17 00:00:00 2001
From: Roy Ivy III <rivy.dev@gmail.com>
Date: Sat, 22 Sep 2018 19:10:14 -0500
Subject: [PATCH] cp: add test for "`cp` always creates backup"

---
 tests/test_cp.rs | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/tests/test_cp.rs b/tests/test_cp.rs
index d47fbb5c9..c74b47f58 100644
--- a/tests/test_cp.rs
+++ b/tests/test_cp.rs
@@ -31,6 +31,23 @@ fn test_cp_cp() {
 }
 
 
+#[test]
+fn test_cp_existing_target() {
+    let (at, mut ucmd) = at_and_ucmd!();
+    let result = ucmd.arg(TEST_HELLO_WORLD_SOURCE)
+        .arg(TEST_EXISTING_FILE)
+        .run();
+
+    assert!(result.success);
+
+    // Check the content of the destination file
+    assert_eq!(at.read(TEST_EXISTING_FILE), "Hello, World!\n");
+
+    // No backup should have been created
+    assert!(!at.file_exists(&*format!("{}~", TEST_EXISTING_FILE)));
+}
+
+
 #[test]
 fn test_cp_duplicate_files() {
     let (at, mut ucmd) = at_and_ucmd!();