tests: add an extra test file (#204)

Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>

tests/test_depends.py

@@ -0,0 +1,61 @@
+from pathlib import Path
+
+import pytest
+
+import repo_review.processor
+from repo_review._compat.importlib.resources.abc import Traversable
+
+
+class E100:
+    "Was passed correctly"
+
+    family = "example"
+
+    @staticmethod
+    def check(package: Traversable) -> bool:
+        """
+        Requires Path(".") to be passed
+        """
+
+        return package == Path()
+
+
+class E200:
+    "Always true"
+
+    family = "example"
+    requires = frozenset(["E100"])
+
+    @staticmethod
+    def check() -> bool:
+        """
+        Can't be false.
+        """
+
+        return True
+
+
+def test_ignore_filter_single(monkeypatch: pytest.MonkeyPatch) -> None:
+    monkeypatch.setattr(
+        repo_review.processor,
+        "collect_checks",
+        lambda _: {"E100": E100, "E200": E200},
+    )
+    _, results = repo_review.processor.process(Path(), ignore={"E100"})
+
+    assert len(results) == 1
+    assert results[0].name == "E200"
+    assert results[0].result
+
+
+def test_select_filter_single(monkeypatch: pytest.MonkeyPatch) -> None:
+    monkeypatch.setattr(
+        repo_review.processor,
+        "collect_checks",
+        lambda _: {"E100": E100, "E200": E200},
+    )
+    _, results = repo_review.processor.process(Path(), select={"E200"})
+
+    assert len(results) == 1
+    assert results[0].name == "E200"
+    assert results[0].result