Add config validator for OIDC logins

util/config/validators/test/test_validate_oidc.py

@@ -0,0 +1,38 @@
+import json
+import pytest
+
+from httmock import urlmatch, HTTMock
+
+from oauth.oidc import OIDC_WELLKNOWN
+from util.config.validators import ConfigValidationException
+from util.config.validators.validate_oidc import OIDCLoginValidator
+
+@pytest.mark.parametrize('unvalidated_config', [
+  ({'SOMETHING_LOGIN_CONFIG': {}}),
+])
+def test_validate_invalid_oidc_login_config(unvalidated_config):
+  validator = OIDCLoginValidator()
+
+  with pytest.raises(ConfigValidationException):
+    validator.validate(unvalidated_config, None, None)
+
+def test_validate_oidc_login():
+  url_hit = [False]
+  @urlmatch(netloc=r'someserver', path=r'/\.well-known/openid-configuration')
+  def handler(_, __):
+    url_hit[0] = True
+    data = {
+      'userinfo_endpoint': 'foobar',
+    }
+    return {'status_code': 200, 'content': json.dumps(data)}
+
+  with HTTMock(handler):
+    validator = OIDCLoginValidator()
+    validator.validate({
+      'SOMETHING_LOGIN_CONFIG': {
+        'OIDC_SERVER': 'http://someserver',
+        'DEBUGGING': True, # Allows for HTTP.
+      },
+    }, None, None)
+
+  assert url_hit[0]