| 1 | // SPDX-License-Identifier: Apache-2.0 |
| 2 | // SPDX-FileCopyrightText: Copyright contributors to the vLLM project |
| 3 | |
| 4 | //! Replays the grammar cases exported by the roundtrip tests through the real |
| 5 | //! XGrammar, so that parser-built output grammars are checked against the |
| 6 | //! engine's compiler and matcher. |
| 7 | |
| 8 | use std::path::PathBuf; |
| 9 | use std::process::Command; |
| 10 | |
| 11 | #[test] |
| 12 | fn xgrammar_accepts_roundtrip_generations() { |
| 13 | let script = PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("tests/grammar_replay.py"); |
| 14 | let output = Command::new(&script) |
| 15 | .output() |
| 16 | .unwrap_or_else(|error| panic!("failed to execute {:?}: {error}", script)); |
| 17 | assert!( |
| 18 | output.status.success(), |
| 19 | "grammar replay failed: status={:?}\nstdout:\n{}\nstderr:\n{}", |
| 20 | output.status.code(), |
| 21 | String::from_utf8_lossy(&output.stdout), |
| 22 | String::from_utf8_lossy(&output.stderr), |
| 23 | ); |
| 24 | } |