Prompt in a loop

1 files changed, 22 insertions, 4 deletions

diff --git a/tests/cli.rs b/tests/cli.rs
index 18d815e..a4d368f 100644
--- a/tests/cli.rs
+++ b/tests/cli.rs
@@ -1,7 +1,25 @@
-use assert_cmd::Command;
+use assert_cmd::cargo::cargo_bin;
+use rexpect::{session::PtySession, spawn};
+use std::error::Error;
+
+fn spawn_interactive_process() -> Result<PtySession, Box<dyn Error>> {
+    let path = cargo_bin(env!("CARGO_PKG_NAME"));
+    let process = spawn(&path.display().to_string(), Some(3000))?;
+    Ok(process)
+}
+
+#[test]
+fn shows_a_prompt() -> Result<(), Box<dyn Error>> {
+    let mut p = spawn_interactive_process()?;
+    p.exp_string("> ")?;
+    Ok(())
+}
 
 #[test]
-fn shows_a_prompt() {
-    let mut cmd = Command::cargo_bin("shackle").unwrap();
-    cmd.assert().success().stdout(">");
+fn does_nothing_after_receiving_whitespace_input() -> Result<(), Box<dyn Error>> {
+    let mut p = spawn_interactive_process()?;
+    p.exp_string("> ")?;
+    p.send_line("")?;
+    p.exp_string("> ")?;
+    Ok(())
 }