1 files changed, 20 insertions, 0 deletions
diff --git a/tests-integration/src/bin/test-cat.rs b/tests-integration/src/bin/test-cat.rs
new file mode 100644
index 00000000..3b30bf18
--- /dev/null
+++ b/tests-integration/src/bin/test-cat.rs
@@ -0,0 +1,20 @@
+//! A cat-like utility that can be used as a subprocess to test I/O
+//! stream communication.
+
+use std::io;
+use std::io::Write;
+
+fn main() {
+    let stdin = io::stdin();
+    let mut stdout = io::stdout();
+    let mut line = String::new();
+    loop {
+        line.clear();
+        stdin.read_line(&mut line).unwrap();
+        if line.is_empty() {
+            break;
+        }
+        stdout.write_all(line.as_bytes()).unwrap();
+    }
+    stdout.flush().unwrap();
+}