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
+

FlippR-Driver/src/tests/input/mocks/InputDriverMock.hpp

@@ -0,0 +1,34 @@
+/*
+ * InputDriverMock.hpp
+ *
+ *  Created on: May 31, 2018
+ *      Author: Andreas Schneider, Johannes Wendel, Jonas Zeunert, Rafael Vinci, Dr. Franca Rupprecht
+ */
+
+#ifndef SRC_TESTS_INPUT_MOCKS_INPUTDRIVERMOCK_HPP_
+#define SRC_TESTS_INPUT_MOCKS_INPUTDRIVERMOCK_HPP_
+
+
+#include "../../../src/input/InputDriver.hpp"
+namespace Input
+{
+
+class InputDriverMock : InputDriver
+{
+public:
+  InputDriverMock() :
+    registered(false)
+  {}
+
+  void register_input_handler(EventHandler* handler) override
+  {
+    registered = true;
+  }
+
+public:
+  bool registered;
+};
+
+}
+
+#endif /* SRC_TESTS_INPUT_MOCKS_INPUTDRIVERMOCK_HPP_ */

FlippR-Driver/src/utilities/InputGPIOInterface.h

@@ -12,8 +12,6 @@
 
 #include <exception>
 
-#define INPUT_MATRIX_SIZE 8
-
 class InputGPIOInterface : GPIOInterface
 {
 public: