Parse args from file (#12085)

Co-authored-by: Ran Benita <ran@unusedvar.com>
Co-authored-by: Bruno Oliveira <bruno@soliv.dev>

testing/acceptance_test.py

@@ -2,6 +2,7 @@
 import dataclasses
 import importlib.metadata
 import os
+from pathlib import Path
 import subprocess
 import sys
 import types
@@ -541,6 +542,32 @@ class TestGeneralUsage:
         res = pytester.runpytest(p)
         res.assert_outcomes(passed=3)
 
+    # Warning ignore because of:
+    # https://github.com/python/cpython/issues/85308
+    # Can be removed once Python<3.12 support is dropped.
+    @pytest.mark.filterwarnings("ignore:'encoding' argument not specified")
+    def test_command_line_args_from_file(
+        self, pytester: Pytester, tmp_path: Path
+    ) -> None:
+        pytester.makepyfile(
+            test_file="""
+            import pytest
+
+            class TestClass:
+                @pytest.mark.parametrize("a", ["x","y"])
+                def test_func(self, a):
+                    pass
+            """
+        )
+        tests = [
+            "test_file.py::TestClass::test_func[x]",
+            "test_file.py::TestClass::test_func[y]",
+            "-q",
+        ]
+        args_file = pytester.maketxtfile(tests="\n".join(tests))
+        result = pytester.runpytest(f"@{args_file}")
+        result.assert_outcomes(failed=0, passed=2)
+
 
 class TestInvocationVariants:
     def test_earlyinit(self, pytester: Pytester) -> None: