Island: Add unit test infrastructure for testing resources

monkey/tests/unit_tests/monkey_island/cc/resources/conftest.py

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+import flask_jwt_extended
+import flask_restful
+import pytest
+from flask import Flask
+
+import monkey_island.cc.app
+import monkey_island.cc.resources.auth.auth
+import monkey_island.cc.resources.island_mode
+from monkey_island.cc.services.representations import output_json
+
+
+# We can't scope to module, because monkeypatch is a function scoped decorator.
+# Potential solutions: https://github.com/pytest-dev/pytest/issues/363#issuecomment-406536200 or
+# https://stackoverflow.com/questions/53963822/python-monkeypatch-setattr-with-pytest-fixture-at-module-scope
+@pytest.fixture(scope="function")
+def flask_client(monkeypatch):
+    monkeypatch.setattr(flask_jwt_extended, "verify_jwt_in_request", lambda: None)
+
+    with mock_init_app().test_client() as client:
+        yield client
+
+
+def mock_init_app():
+    app = Flask(__name__)
+
+    api = flask_restful.Api(app)
+    api.representations = {"application/json": output_json}
+
+    monkey_island.cc.app.init_app_url_rules(app)
+    monkey_island.cc.app.init_api_resources(api)
+
+    return app