1 files changed, 40 insertions, 0 deletions
diff --git a/testing/language_helpers.py b/testing/language_helpers.py
new file mode 100644
index 0000000..05c94eb
--- /dev/null
+++ b/testing/language_helpers.py
@@ -0,0 +1,40 @@
+from __future__ import annotations
+
+import os
+from collections.abc import Sequence
+
+from pre_commit.lang_base import Language
+from pre_commit.prefix import Prefix
+
+
+def run_language(
+        path: os.PathLike[str],
+        language: Language,
+        exe: str,
+        args: Sequence[str] = (),
+        file_args: Sequence[str] = (),
+        version: str | None = None,
+        deps: Sequence[str] = (),
+        is_local: bool = False,
+        require_serial: bool = True,
+        color: bool = False,
+) -> tuple[int, bytes]:
+    prefix = Prefix(str(path))
+    version = version or language.get_default_version()
+
+    if language.ENVIRONMENT_DIR is not None:
+        language.install_environment(prefix, version, deps)
+        health_error = language.health_check(prefix, version)
+        assert health_error is None, health_error
+    with language.in_env(prefix, version):
+        ret, out = language.run_hook(
+            prefix,
+            exe,
+            args,
+            file_args,
+            is_local=is_local,
+            require_serial=require_serial,
+            color=color,
+        )
+        out = out.replace(b'\r\n', b'\n')
+        return ret, out