Run linking and diadef handling with patched `sys.path` (#6617)

* Use separate directory for pyreverse related test data

1 files changed, 30 insertions, 0 deletions

diff --git a/tests/testutils/test_pyreverse_testutils.py b/tests/testutils/test_pyreverse_testutils.py
new file mode 100644
index 000000000..95cbc239f
--- /dev/null
+++ b/tests/testutils/test_pyreverse_testutils.py
@@ -0,0 +1,30 @@
+# Licensed under the GPL: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+# For details: https://github.com/PyCQA/pylint/blob/main/LICENSE
+# Copyright (c) https://github.com/PyCQA/pylint/blob/main/CONTRIBUTORS.txt
+
+from pathlib import Path
+
+from pylint.testutils import pyreverse
+
+HERE = Path(__file__).parent
+DATA_DIRECTORY = HERE / "pyreverse_data"
+TEST_FILES = {
+    testfile.source.stem: testfile
+    for testfile in pyreverse.get_functional_test_files(DATA_DIRECTORY)
+}
+
+
+def test_files_with_leading_underscore_are_ignored() -> None:
+    assert "_not_a_functest" not in TEST_FILES
+
+
+def test_file_with_options() -> None:
+    test_file = TEST_FILES["functest_with_options"]
+    assert test_file.options["output_formats"] == ["dot", "png"]
+    assert test_file.options["command_line_args"] == ["-ASmy"]
+
+
+def test_file_without_options() -> None:
+    test_file = TEST_FILES["functest_without_options"]
+    assert test_file.options["output_formats"] == ["mmd"]
+    assert test_file.options["command_line_args"] == []