chore: checkpoint before Python removal

vendor/unsafe-libyaml/tests/test_parser_error.rs

@@ -0,0 +1,31 @@
+#![allow(clippy::type_complexity)]
+
+mod bin;
+#[path = "../src/bin/run-parser-test-suite.rs"]
+#[allow(dead_code)]
+mod run_parser_test_suite;
+
+use std::path::Path;
+
+fn test(id: &str) {
+    let dir = Path::new("tests")
+        .join("data")
+        .join("yaml-test-suite")
+        .join(id);
+
+    let output = bin::run(
+        env!("CARGO_BIN_EXE_run-parser-test-suite"),
+        run_parser_test_suite::unsafe_main,
+        &dir.join("in.yaml"),
+    );
+
+    if output.success {
+        let stdout = String::from_utf8_lossy(&output.stdout);
+        let stderr = String::from_utf8_lossy(&output.stderr);
+        eprint!("{}", stdout);
+        eprint!("{}", stderr);
+        panic!("expected parse to fail");
+    }
+}
+
+unsafe_libyaml_test_suite::test_parser_error!();