1 files changed, 60 insertions, 1 deletions
diff --git a/roles/openshift_health_checker/test/openshift_check_test.py b/roles/openshift_health_checker/test/openshift_check_test.py
index c4c8cd1c2..e3153979c 100644
--- a/roles/openshift_health_checker/test/openshift_check_test.py
+++ b/roles/openshift_health_checker/test/openshift_check_test.py
@@ -1,6 +1,7 @@
 import pytest
 
-from openshift_checks import get_var, OpenShiftCheckException
+from openshift_checks import OpenShiftCheck, OpenShiftCheckException
+from openshift_checks import load_checks, get_var
 
 
 # Fixtures
@@ -22,6 +23,64 @@ def missing_keys(request):
 # Tests
 
 
+def test_OpenShiftCheck_init():
+    class TestCheck(OpenShiftCheck):
+        name = "test_check"
+        run = NotImplemented
+
+    # initialization requires at least one argument (apart from self)
+    with pytest.raises(TypeError) as excinfo:
+        TestCheck()
+    assert 'execute_module' in str(excinfo.value)
+    assert 'module_executor' in str(excinfo.value)
+
+    execute_module = object()
+
+    # initialize with positional argument
+    check = TestCheck(execute_module)
+    # new recommended name
+    assert check.execute_module == execute_module
+    # deprecated attribute name
+    assert check.module_executor == execute_module
+
+    # initialize with keyword argument, recommended name
+    check = TestCheck(execute_module=execute_module)
+    # new recommended name
+    assert check.execute_module == execute_module
+    # deprecated attribute name
+    assert check.module_executor == execute_module
+
+    # initialize with keyword argument, deprecated name
+    check = TestCheck(module_executor=execute_module)
+    # new recommended name
+    assert check.execute_module == execute_module
+    # deprecated attribute name
+    assert check.module_executor == execute_module
+
+
+def test_subclasses():
+    """OpenShiftCheck.subclasses should find all subclasses recursively."""
+    class TestCheck1(OpenShiftCheck):
+        pass
+
+    class TestCheck2(OpenShiftCheck):
+        pass
+
+    class TestCheck1A(TestCheck1):
+        pass
+
+    local_subclasses = set([TestCheck1, TestCheck1A, TestCheck2])
+    known_subclasses = set(OpenShiftCheck.subclasses())
+
+    assert local_subclasses - known_subclasses == set(), "local_subclasses should be a subset of known_subclasses"
+
+
+def test_load_checks():
+    """Loading checks should load and return Python modules."""
+    modules = load_checks()
+    assert modules
+
+
 @pytest.mark.parametrize("keys,expected", [
     (("foo",), 42),
     (("bar", "baz"), "openshift"),