diff --git a/single_file_tests/string.rs b/single_file_tests/string.rs
new file mode 100644
index 0000000..8b4f5e1
--- /dev/null
+++ b/single_file_tests/string.rs
@@ -0,0 +1,11 @@
+fn main() {
+    let mut hello = String::from("hello");
+    hello.remove(3);
+    println!("removed  : {}", hello);
+    hello.pop();
+    println!("poped    : {}", hello);
+    hello.truncate(1);
+    println!("truncated: {}", hello);
+    hello.clear();
+    println!("cleared  : {}", hello);
+}
\ No newline at end of file