Added str tests in library

rust-lang · Sep 5, 2020 · 5a0a58b · 5a0a58b
1 parent c336478
commit 5a0a58b
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Showing 2 changed files with 8 additions and 9 deletions.
diff --git a/library/alloc/tests/str.rs b/library/alloc/tests/str.rs
@@ -1921,3 +1921,11 @@ fn different_str_pattern_forwarding_lifetimes() {
 
     foo::<&str>("x");
 }
+
+#[test]
+fn test_str_concat() {
+    let a: String = "hello".to_string();
+    let b: String = "world".to_string();
+    let s: String = format!("{}{}", a, b);
+    assert_eq!(s.as_bytes()[9], 'd' as u8);
+}
diff --git a/src/test/ui/str-concat.rs b/src/test/ui/str-concat.rs