Cleanup Redox repo, update Rust, remove old target

src/tests/mod.rs

@@ -0,0 +1,29 @@
+use syscall::{self, Error};
+
+/// Test stdio
+#[test]
+fn stdio() {
+    // Test opening stdin
+    assert_eq!(syscall::open(b"debug:", 0), Ok(0));
+
+    // Test opening stdout
+    assert_eq!(syscall::open(b"debug:", 0), Ok(1));
+
+    // Test opening stderr
+    assert_eq!(syscall::open(b"debug:", 0), Ok(2));
+
+    // Test writing stdout
+    let stdout_str = b"STDOUT";
+    assert_eq!(syscall::write(1, stdout_str), Ok(stdout_str.len()));
+
+    // Test writing stderr
+    let stderr_str = b"STDERR";
+    assert_eq!(syscall::write(2, stderr_str), Ok(stderr_str.len()));
+}
+
+/// Test that invalid reads/writes cause errors
+#[test]
+fn invalid_path() {
+    assert_eq!(syscall::read(999, &mut []), Err(Error::new(EBADF)));
+    assert_eq!(syscall::write(999, &[]), Err(Error::new(EBADF)));
+}