writing EventHandler tests

FlippR-Driver/src/tests/input/TestEventHandler.cpp

@@ -0,0 +1,54 @@
+/*
+ * TestEventHandler.cpp
+ *
+ *  Created on: May 31, 2018
+ *      Author: Andreas Schneider, Johannes Wendel, Jonas Zeunert, Rafael Vinci, Dr. Franca Rupprecht
+ */
+
+#include "catch.hpp"
+
+#include "../../src/input/EventHandler.hpp"
+
+#include "mocks/InputDriverMock.hpp"
+
+#define private public
+
+SCENARIO("An EventHandler gets created and destroyed")
+{
+  GIVEN("A shared pointer to an InputDriver and an EventHandler")
+  {
+    std::shared_ptr<Input::InputDriverMock> input_driver;
+
+    Input::EventHandler* event_handler = new Input::EventHandler(input_driver);
+
+    WHEN("An EventHandler is created")
+    {
+      REQUIRE(input_driver->registered = false);
+
+      THEN("The input driver is saved")
+      {
+        REQUIRE(event_handler->input_driver.get() == input_driver.get());
+      }
+      THEN("The handler is registered at the driver")
+      {
+        REQUIRE(input_driver->registered == true);
+      }
+    }
+
+    WHEN("The EventHandler is destroyed")
+    {
+      REQUIRE(input_driver->registered == true);
+
+      delete(event_handler);
+      event_handler = NULL;
+
+      THEN("The handler is unregistered at the driver")
+      {
+        REQUIRE(input_driver->registered == false);
+      }
+    }
+  }
+}
+
+// Input::EventHandler::handle not tested because its virtual and should be overrided
+