Introduce basic REPL

1 files changed, 8 insertions, 0 deletions

diff --git a/rust/tests/interpret_test.rs b/rust/tests/interpret_test.rs
index 61b0712..40c3ee5 100644
--- a/rust/tests/interpret_test.rs
+++ b/rust/tests/interpret_test.rs
@@ -7,3 +7,11 @@ fn interpreter_can_read_and_interpret_file() {
     assert_eq!("1", eval_file("sample/test_normal.txt"));
     assert_eq!("13", eval_file("sample/test_let.txt"));
 }
+
+#[test]
+fn repl_can_read_and_interpret_input() {
+    let input = "(def id (lam x x))\n(id 12)";
+    let mut output = Vec::new();
+    lambda::repl(&mut input.as_bytes(), &mut output);
+    assert_eq!("> true\n> 12\n> ", String::from_utf8(output).unwrap());
+}