1 files changed, 58 insertions, 0 deletions
diff --git a/tools/tryselect/test/test_presets.py b/tools/tryselect/test/test_presets.py
new file mode 100644
index 0000000000..89cc810808
--- /dev/null
+++ b/tools/tryselect/test/test_presets.py
@@ -0,0 +1,58 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+import mozunit
+import pytest
+
+TASKS = [
+    {
+        "kind": "build",
+        "label": "build-windows",
+        "attributes": {
+            "build_platform": "windows",
+        },
+    },
+    {
+        "kind": "test",
+        "label": "test-windows-mochitest-e10s",
+        "attributes": {
+            "unittest_suite": "mochitest",
+            "unittest_flavor": "browser-chrome",
+            "mochitest_try_name": "mochitest",
+        },
+    },
+]
+
+
+@pytest.fixture(autouse=True)
+def skip_taskgraph_generation(monkeypatch, tg):
+    def fake_generate_tasks(*args, **kwargs):
+        return tg
+
+    from tryselect import tasks
+
+    monkeypatch.setattr(tasks, "generate_tasks", fake_generate_tasks)
+
+
+@pytest.mark.xfail(
+    strict=False, reason="Bug 1635204: " "test_shared_presets[sample-suites] is flaky"
+)
+def test_shared_presets(run_mach, shared_name, shared_preset):
+    """This test makes sure that we don't break any of the in-tree presets when
+    renaming/removing variables in any of the selectors.
+    """
+    assert "description" in shared_preset
+    assert "selector" in shared_preset
+
+    selector = shared_preset["selector"]
+    if selector == "fuzzy":
+        assert "query" in shared_preset
+        assert isinstance(shared_preset["query"], list)
+
+    # Run the preset and assert there were no exceptions.
+    assert run_mach(["try", "--no-push", "--preset", shared_name]) == 0
+
+
+if __name__ == "__main__":
+    mozunit.main()