logic: File Manager

* added FileManager that keeps track of the files analyzed by the project. It therefore checks if files get added, updated or deleted from the source- and include folders.
* refactored ASTVisitor::hasValidLocation() and implemented one version that search for the location in the currently parsed file and one that searches in all the project's source files.
* quickfix: switched order in FileManager so that header files are parsed first.
* created folder for helper classes used in tests.
* added test code for FileManager
* adjusted test code for Parser Tests.

src/test/helper/TestFileManager.cpp

@@ -0,0 +1,16 @@
+#include "TestFileManager.h"
+
+TestFileManager::TestFileManager()
+	: FileManager(
+		std::vector<std::string>(),
+		std::vector<std::string>(),
+		std::vector<std::string>(),
+		std::vector<std::string>()
+	)
+{
+}
+
+bool TestFileManager::hasFilePath(const std::string& filePath) const
+{
+	return true;
+}

src/test/helper/TestFileManager.h

@@ -0,0 +1,13 @@
+#ifndef TEST_FILE_MANAGER_H
+#define TEST_FILE_MANAGER_H
+
+#include "utility/file/FileManager.h"
+
+class TestFileManager: public FileManager
+{
+public:
+	TestFileManager();
+	virtual bool hasFilePath(const std::string& filePath) const;
+};
+
+#endif // TEST_FILE_MANAGER_H

src/test/helper/TestStorage.cpp

@@ -0,0 +1,18 @@
+#include "TestStorage.h"
+
+#include "utility/text/TextAccess.h"
+#include "data/parser/cxx/CxxParser.h"
+#include "TestFileManager.h"
+
+void TestStorage::parseCxxCode(std::string code)
+{
+	clear();
+	TestFileManager fm;
+	CxxParser parser(this, &fm);
+	parser.parseFile(TextAccess::createFromString(code));
+}
+
+const Graph& TestStorage::getGraph() const
+{
+	return Storage::getGraph();
+}

src/test/helper/TestStorage.h

@@ -0,0 +1,14 @@
+#ifndef TEST_STORAGE_H
+#define TEST_STORAGE_H
+
+#include "data/Storage.h"
+
+class TestStorage
+	: public Storage
+{
+public:
+	void parseCxxCode(std::string code);
+	const Graph& getGraph() const;
+};
+
+#endif // TEST_STORAGE_H