logic: improved include detection

* also search for include paths of include directives extracted from header search paths
* extracted logic to gather unsolved includes
* extracted some code to filetree class

bin/test/data/CxxIncludeProcessingTestSuite/test_header_search_path_detection_finds_path_included_in_future_header_search_path/a.cpp

@@ -0,0 +1 @@
+#include "a.h"

bin/test/data/CxxIncludeProcessingTestSuite/test_header_search_path_detection_finds_path_included_in_future_header_search_path/include_a/a.h

@@ -0,0 +1 @@
+#include "b.h"

bin/test/data/CxxIncludeProcessingTestSuite/test_header_search_path_detection_finds_path_included_in_header_search_path/a.cpp

@@ -0,0 +1 @@
+#include "a.h"

bin/test/data/CxxIncludeProcessingTestSuite/test_header_search_path_detection_finds_path_included_in_header_search_path/include_a/a.h

@@ -0,0 +1 @@
+#include "b.h"

src/lib/CMakeLists.txt

@@ -356,6 +356,8 @@ add_files(
 	utility/file/FileRegisterStateData.h
 	utility/file/FileSystem.cpp
 	utility/file/FileSystem.h
+	utility/file/FileTree.cpp
+	utility/file/FileTree.h
 
 	utility/interprocess/SharedMemory.cpp
 	utility/interprocess/SharedMemory.h

src/lib/utility/file/FileTree.cpp

@@ -0,0 +1,86 @@
+#include "utility/file/FileTree.h"
+
+#include "utility/file/FileSystem.h"
+
+FileTree::FileTree(const FilePath& rootPath)
+	: m_rootPath(rootPath.getAbsolute().makeCanonical())
+{
+	if (m_rootPath.exists())
+	{
+		if (m_rootPath.isDirectory())
+		{
+			for (const FilePath& filePath : FileSystem::getFilePathsFromDirectory(m_rootPath))
+			{
+				m_files[filePath.fileName()].insert(filePath);
+			}
+		}
+		else
+		{
+			m_files[m_rootPath.fileName()].insert(m_rootPath);
+		}
+	}
+}
+
+FilePath FileTree::getAbsoluteRootPathForRelativeFilePath(const FilePath& relativeFilePath)
+{
+	std::vector<FilePath> rootPaths = doGetAbsoluteRootPathsForRelativeFilePath(relativeFilePath, false);
+	if (!rootPaths.empty())
+	{
+		return rootPaths.front();
+	}
+	return FilePath();
+}
+
+std::vector<FilePath> FileTree::getAbsoluteRootPathsForRelativeFilePath(const FilePath& relativeFilePath)
+{
+	return doGetAbsoluteRootPathsForRelativeFilePath(relativeFilePath, true);
+}
+
+std::vector<FilePath> FileTree::doGetAbsoluteRootPathsForRelativeFilePath(const FilePath& relativeFilePath, bool allowMultipleResults)
+{
+	std::vector<FilePath> rootPaths;
+
+	std::unordered_map<std::string, std::set<FilePath>>::const_iterator it = m_files.find(relativeFilePath.fileName());
+	if (it != m_files.end())
+	{
+		for (FilePath existingFilePath : it->second)
+		{
+			existingFilePath = existingFilePath.getParentDirectory();
+			bool ok = true;
+			{
+				FilePath temp = relativeFilePath.getParentDirectory();
+				while (!temp.empty())
+				{
+					if (temp.fileName() == "..")
+					{
+						std::vector<FilePath> subDirectories = FileSystem::getDirectSubDirectories(existingFilePath);
+						if (!subDirectories.empty())
+						{
+							existingFilePath = subDirectories.front();
+						}
+						else
+						{
+							ok = false;
+							break;
+						}
+					}
+					else
+					{
+						existingFilePath = existingFilePath.getParentDirectory();
+					}
+					temp = temp.getParentDirectory();
+				}
+			}
+			if (ok)
+			{
+				rootPaths.push_back(existingFilePath);
+				if (!allowMultipleResults)
+				{
+					break;
+				}
+			}
+		}
+	}
+	return rootPaths;
+}
+

src/lib/utility/file/FileTree.h

@@ -0,0 +1,25 @@
+#ifndef FILE_TREE_H
+#define FILE_TREE_H
+
+#include <string>
+#include <set>
+#include <unordered_map>
+
+#include "utility/file/FilePath.h"
+
+class FileTree
+{
+public:
+	FileTree(const FilePath& rootPath);
+
+	FilePath getAbsoluteRootPathForRelativeFilePath(const FilePath& relativeFilePath);
+	std::vector<FilePath> getAbsoluteRootPathsForRelativeFilePath(const FilePath& relativeFilePath);
+
+private:
+	std::vector<FilePath> doGetAbsoluteRootPathsForRelativeFilePath(const FilePath& relativeFilePath, bool allowMultipleResults);
+
+	FilePath m_rootPath;
+	std::unordered_map<std::string, std::set<FilePath>> m_files;
+};
+
+#endif // FILE_TREE_H

src/lib_cxx/utility/IncludeProcessing.cpp

@@ -5,7 +5,7 @@
 
 #include "utility/IncludeDirective.h"
 #include "utility/file/FilePath.h"
-#include "utility/file/FileSystem.h"
+#include "utility/file/FileTree.h"
 #include "utility/text/TextAccess.h"
 #include "utility/utility.h"
 #include "utility/utilityString.h"
@@ -57,47 +57,15 @@ std::vector<IncludeDirective> IncludeProcessing::getUnresolvedIncludeDirectives(
 
 	for (size_t i = 0; i < quantiles.size(); i++)
 	{
-		const std::vector<FilePath>& quantile = quantiles[i];
-
 		progress(float(i) / quantiles.size());
 
-		std::set<FilePath> unprocessedFilePaths(quantile.begin(), quantile.end());
-
-		while (!unprocessedFilePaths.empty())
-		{
-			std::transform(
-				unprocessedFilePaths.begin(), unprocessedFilePaths.end(),
-				std::inserter(processedFilePaths, processedFilePaths.begin()),
-				[](const FilePath& p){ return p.str(); }
-			);
-
-			std::set<FilePath> unprocessedFilePathsForNextIteration;
-
-			for (const FilePath& filePath: unprocessedFilePaths)
-			{
-				for (const IncludeDirective& includeDirective: getIncludeDirectives(filePath))
-				{
-					const FilePath resolvedIncludePath = resolveIncludeDirective(includeDirective, headerSearchDirectories).makeCanonical();
-					if (resolvedIncludePath.empty())
-					{
-						unresolvedIncludeDirectives.insert(includeDirective);
-					}
-					else if (processedFilePaths.find(resolvedIncludePath.str()) == processedFilePaths.end())
-					{
-						for (const FilePath& indexedPath: indexedPaths)
-						{
-							if (indexedPath.contains(resolvedIncludePath))
-							{
-								unprocessedFilePathsForNextIteration.insert(resolvedIncludePath);
-								break;
-							}
-						}
-					}
-				}
-			}
-
-			unprocessedFilePaths = unprocessedFilePathsForNextIteration;
-		}
+		const std::vector<IncludeDirective> directives = doGetUnresolvedIncludeDirectives(
+			utility::toSet(quantiles[i]),
+			processedFilePaths,
+			indexedPaths,
+			headerSearchDirectories
+		);
+		std::copy(directives.begin(), directives.end(), std::inserter(unresolvedIncludeDirectives, unresolvedIncludeDirectives.end()));
 	}
 
 	std::vector<IncludeDirective> ret;
@@ -115,25 +83,16 @@ std::vector<IncludeDirective> IncludeProcessing::getUnresolvedIncludeDirectives(
 std::set<FilePath> IncludeProcessing::getHeaderSearchDirectories(
 	const std::set<FilePath>& sourceFilePaths,
 	const std::set<FilePath>& searchedPaths,
+	const std::set<FilePath>& currentHeaderSearchDirectories,
 	const size_t desiredQuantileCount, std::function<void(float)> progress
 )
 {
 	progress(0.0f);
 
-	std::map<std::string, std::set<FilePath>> existingFilePaths;
+	std::vector<std::shared_ptr<FileTree>> existingFileTrees;
 	for (const FilePath& searchedPath : searchedPaths)
 	{
-		if (searchedPath.isDirectory())
-		{
-			for (const FilePath& filePath : FileSystem::getFilePathsFromDirectory(searchedPath.getCanonical()))
-			{
-				existingFilePaths[filePath.fileName()].insert(filePath);
-			}
-		}
-		else
-		{
-			existingFilePaths[searchedPath.fileName()].insert(searchedPath);
-		}
+		existingFileTrees.push_back(std::make_shared<FileTree>(searchedPath));
 	}
 
 	std::set<FilePath> headerSearchDirectories;
@@ -142,18 +101,16 @@ std::set<FilePath> IncludeProcessing::getHeaderSearchDirectories(
 
 	for (size_t i = 0; i < quantiles.size(); i++)
 	{
-		const std::vector<FilePath>& quantile = quantiles[i];
-
 		progress(float(i) / quantiles.size());
 
-		std::set<FilePath> unprocessedFilePaths(quantile.begin(), quantile.end());
+		std::set<FilePath> unprocessedFilePaths(quantiles[i].begin(), quantiles[i].end());
 
 		while (!unprocessedFilePaths.empty())
 		{
 			std::transform(
 				unprocessedFilePaths.begin(), unprocessedFilePaths.end(),
 				std::inserter(processedFilePaths, processedFilePaths.begin()),
-				[](const FilePath& p) { return p.str(); }
+				[](const FilePath& p) { return p.getAbsolute().str(); }
 			);
 
 			std::set<FilePath> unprocessedFilePathsForNextIteration;
@@ -164,61 +121,20 @@ std::set<FilePath> IncludeProcessing::getHeaderSearchDirectories(
 				{
 					const FilePath includedFilePath = includeDirective.getIncludedFile();
 
-					FilePath foundIncludedPath;
-					if (includedFilePath.isAbsolute())
+					FilePath foundIncludedPath = resolveIncludeDirective(includeDirective, currentHeaderSearchDirectories);
+					if (foundIncludedPath.empty())
 					{
-						foundIncludedPath = includedFilePath;
-					}
-					else
-					{
-						const FilePath relativeToIncludingPath = includeDirective.getIncludingFile().getParentDirectory().concatenate(includedFilePath);
-						if (relativeToIncludingPath.exists())
+						for (std::shared_ptr<FileTree> existingFileTree : existingFileTrees)
 						{
-							foundIncludedPath = relativeToIncludingPath;
-						}
-						else
-						{
-							std::map<std::string, std::set<FilePath>>::const_iterator it = existingFilePaths.find(includedFilePath.fileName());
-							if (it != existingFilePaths.end())
+							// TODO: handle the case where a file can be found by two different paths
+							const FilePath rootPath = existingFileTree->getAbsoluteRootPathForRelativeFilePath(includedFilePath);
+							if (!rootPath.empty())
 							{
-								// TODO: handle the case where a file can be found by two different paths
-								for (FilePath existingFilePath : it->second)
+								foundIncludedPath = rootPath.getConcatenated(includedFilePath);
+								if (foundIncludedPath.exists())
 								{
-									existingFilePath = existingFilePath.getParentDirectory();
-									bool ok = true;
-									{
-										FilePath tempIncludedFilePath = includedFilePath.getParentDirectory();
-										while (!tempIncludedFilePath.empty())
-										{
-											if (tempIncludedFilePath.fileName() == "..")
-											{
-												std::vector<FilePath> subDirectories = FileSystem::getDirectSubDirectories(existingFilePath);
-												if (!subDirectories.empty())
-												{
-													existingFilePath = subDirectories.front();
-												}
-												else
-												{
-													ok = false;
-													break;
-												}
-											}
-											else
-											{
-												existingFilePath = existingFilePath.getParentDirectory();
-											}
-											tempIncludedFilePath = tempIncludedFilePath.getParentDirectory();
-										}
-									}
-									if (ok)
-									{
-										foundIncludedPath = existingFilePath.getConcatenated(includedFilePath);
-										if (foundIncludedPath.exists())
-										{
-											headerSearchDirectories.insert(existingFilePath);
-											break;
-										}
-									}
+									headerSearchDirectories.insert(rootPath);
+									break;
 								}
 							}
 						}
@@ -227,14 +143,7 @@ std::set<FilePath> IncludeProcessing::getHeaderSearchDirectories(
 					{
 						if (processedFilePaths.find(foundIncludedPath.str()) == processedFilePaths.end())
 						{
-							for (const FilePath& searchedPath : searchedPaths)
-							{
-								if (searchedPath.contains(foundIncludedPath))
-								{
-									unprocessedFilePathsForNextIteration.insert(foundIncludedPath);
-									break;
-								}
-							}
+							unprocessedFilePathsForNextIteration.insert(foundIncludedPath);
 						}
 					}
 				}
@@ -291,6 +200,54 @@ std::vector<IncludeDirective> IncludeProcessing::getIncludeDirectives(std::share
 	return includeDirectives;
 }
 
+std::vector<IncludeDirective> IncludeProcessing::doGetUnresolvedIncludeDirectives(
+	std::set<FilePath> filePathsToProcess,
+	std::unordered_set<std::string>& processedFilePaths,
+	const std::set<FilePath>& indexedPaths,
+	const std::set<FilePath>& headerSearchDirectories
+)
+{
+	std::vector<IncludeDirective> unresolvedIncludeDirectives;
+
+	while (!filePathsToProcess.empty())
+	{
+		std::transform(
+			filePathsToProcess.begin(), filePathsToProcess.end(),
+			std::inserter(processedFilePaths, processedFilePaths.begin()),
+			[](const FilePath& p) { return p.getAbsolute().makeCanonical().str(); }
+		);
+
+		std::set<FilePath> filePathsToProcessForNextIteration;
+
+		for (const FilePath& filePath : filePathsToProcess)
+		{
+			for (const IncludeDirective& includeDirective : getIncludeDirectives(filePath))
+			{
+				const FilePath resolvedIncludePath = resolveIncludeDirective(includeDirective, headerSearchDirectories).makeCanonical();
+				if (resolvedIncludePath.empty())
+				{
+					unresolvedIncludeDirectives.push_back(includeDirective);
+				}
+				else if (processedFilePaths.find(resolvedIncludePath.str()) == processedFilePaths.end())
+				{
+					for (const FilePath& indexedPath : indexedPaths)
+					{
+						if (indexedPath.contains(resolvedIncludePath))
+						{
+							filePathsToProcessForNextIteration.insert(resolvedIncludePath);
+							break;
+						}
+					}
+				}
+			}
+		}
+		filePathsToProcess.clear();
+		filePathsToProcess.swap(filePathsToProcessForNextIteration);
+	}
+
+	return unresolvedIncludeDirectives;
+}
+
 FilePath IncludeProcessing::resolveIncludeDirective(
 	const IncludeDirective& includeDirective, 
 	const std::set<FilePath>& headerSearchDirectories

src/lib_cxx/utility/IncludeProcessing.h

@@ -3,6 +3,7 @@
 
 #include <memory>
 #include <set>
+#include <unordered_set>
 #include <vector>
 
 #include "utility/OrderedCache.h"
@@ -24,6 +25,7 @@ public:
 	static std::set<FilePath> getHeaderSearchDirectories(
 		const std::set<FilePath>& sourceFilePaths,
 		const std::set<FilePath>& searchedPaths,
+		const std::set<FilePath>& currentHeaderSearchDirectories,
 		const size_t desiredQuantileCount, std::function<void(float)> progress
 	);
 
@@ -32,6 +34,13 @@ public:
 	static std::vector<IncludeDirective> getIncludeDirectives(std::shared_ptr<TextAccess> textAccess);
 
 private:
+	static std::vector<IncludeDirective> doGetUnresolvedIncludeDirectives(
+		std::set<FilePath> filePathsToProcess,
+		std::unordered_set<std::string>& processedFilePaths,
+		const std::set<FilePath>& indexedPaths,
+		const std::set<FilePath>& headerSearchDirectories
+	);
+
 	static FilePath resolveIncludeDirective(
 		const IncludeDirective& includeDirective, 
 		const std::set<FilePath>& headerSearchDirectories

src/lib_gui/qt/window/project_wizzard/QtProjectWizzardContentPaths.cpp

@@ -589,7 +589,6 @@ void QtProjectWizzardContentPathsHeaderSearch::finishedSelectDetectIncludesRootP
 {
 	// TODO: regard Force Includes here, too!
 	const std::vector<FilePath> searchedPaths = m_settings->makePathsExpandedAndAbsolute(m_pathsDialog->getPaths());
-
 	closedPathsDialog();
 
 	std::thread([=]()
@@ -599,7 +598,7 @@ void QtProjectWizzardContentPathsHeaderSearch::finishedSelectDetectIncludesRootP
 			std::shared_ptr<QtDialogView> dialogView = std::dynamic_pointer_cast<QtDialogView>(Application::getInstance()->getDialogView());
 
 			std::set<FilePath> sourceFilePaths;
-
+			std::vector<FilePath> headerSearchPaths;
 			{
 				dialogView->setParentWindow(m_window);
 				dialogView->showUnknownProgressDialog("Processing", "Gathering Source Files");
@@ -614,6 +613,13 @@ void QtProjectWizzardContentPathsHeaderSearch::finishedSelectDetectIncludesRootP
 					m_settings->getSourceExtensions()
 				);
 				sourceFilePaths = fileManager.getAllSourceFilePaths();
+
+				headerSearchPaths = ApplicationSettings::getInstance()->getHeaderSearchPathsExpanded();
+				if (std::shared_ptr<SourceGroupSettingsCxx> cxxSettings =
+					std::dynamic_pointer_cast<SourceGroupSettingsCxx>(m_settings))
+				{
+					utility::append(headerSearchPaths, cxxSettings->getHeaderSearchPathsExpandedAndAbsolute());
+				}
 			}
 			{
 				dialogView->setParentWindow(m_window);
@@ -624,6 +630,7 @@ void QtProjectWizzardContentPathsHeaderSearch::finishedSelectDetectIncludesRootP
 				detectedHeaderSearchPaths = IncludeProcessing::getHeaderSearchDirectories(
 					sourceFilePaths,
 					utility::toSet(searchedPaths),
+					utility::toSet(headerSearchPaths),
 					log2(sourceFilePaths.size()),
 					[&](const float progress)
 					{

src/test/CxxIncludeProcessingTestSuite.h

@@ -3,6 +3,7 @@
 #include "utility/text/TextAccess.h"
 #include "utility/IncludeDirective.h"
 #include "utility/IncludeProcessing.h"
+#include "utility/utility.h"
 
 class CxxIncludeProcessingTestSuite: public CxxTest::TestSuite
 {
@@ -71,48 +72,78 @@ public:
 
 	void test_header_search_path_detection_does_not_find_path_relative_to_including_file()
 	{
-		std::set<FilePath> headerSearchDirectories = IncludeProcessing::getHeaderSearchDirectories(
-		{ FilePath("data/CxxIncludeProcessingTestSuite/test_header_search_path_detection_does_not_find_path_relative_to_including_file/a.cpp") },
-		{ FilePath("data/CxxIncludeProcessingTestSuite/test_header_search_path_detection_does_not_find_path_relative_to_including_file") },
-			1, [&](float) {}
-		);
+		std::vector<FilePath> headerSearchDirectories = utility::toVector(IncludeProcessing::getHeaderSearchDirectories(
+			{ FilePath("data/CxxIncludeProcessingTestSuite/test_header_search_path_detection_does_not_find_path_relative_to_including_file/a.cpp") },
+			{ FilePath("data/CxxIncludeProcessingTestSuite/test_header_search_path_detection_does_not_find_path_relative_to_including_file") },
+			{ },
+			1, [](float) {}
+		));
 
 		TS_ASSERT(headerSearchDirectories.empty());
 	}
 
 	void test_header_search_path_detection_finds_path_inside_sub_directory()
 	{
-		std::set<FilePath> headerSearchDirectories = IncludeProcessing::getHeaderSearchDirectories(
-		{ FilePath("data/CxxIncludeProcessingTestSuite/test_header_search_path_detection_finds_path_inside_sub_directory/a.cpp") },
-		{ FilePath("data/CxxIncludeProcessingTestSuite/test_header_search_path_detection_finds_path_inside_sub_directory") },
-			1, [&](float) {}
-		);
+		std::vector<FilePath> headerSearchDirectories = utility::toVector(IncludeProcessing::getHeaderSearchDirectories(
+			{ FilePath("data/CxxIncludeProcessingTestSuite/test_header_search_path_detection_finds_path_inside_sub_directory/a.cpp") },
+			{ FilePath("data/CxxIncludeProcessingTestSuite/test_header_search_path_detection_finds_path_inside_sub_directory") },
+			{},
+			1, [](float) {}
+		));
 
-		TS_ASSERT(!headerSearchDirectories.empty());
-		if (!headerSearchDirectories.empty())
-		{
-			TS_ASSERT_EQUALS(
-				"CxxIncludeProcessingTestSuite/test_header_search_path_detection_finds_path_inside_sub_directory/include",
-				headerSearchDirectories.begin()->getRelativeTo(FilePath("data").getAbsolute()).str()
-			);
-		}
+		TS_ASSERT(utility::containsElement<FilePath>(
+			headerSearchDirectories,
+			FilePath("data/CxxIncludeProcessingTestSuite/test_header_search_path_detection_finds_path_inside_sub_directory/include").makeAbsolute()
+		));
 	}
 
 	void test_header_search_path_detection_finds_path_relative_to_sub_directory()
 	{
-		std::set<FilePath> headerSearchDirectories = IncludeProcessing::getHeaderSearchDirectories(
-		{ FilePath("data/CxxIncludeProcessingTestSuite/test_header_search_path_detection_finds_path_relative_to_sub_directory/a.cpp") },
-		{ FilePath("data/CxxIncludeProcessingTestSuite/test_header_search_path_detection_finds_path_relative_to_sub_directory") },
-			1, [&](float) {}
-		);
+		std::vector<FilePath> headerSearchDirectories = utility::toVector(IncludeProcessing::getHeaderSearchDirectories(
+			{ FilePath("data/CxxIncludeProcessingTestSuite/test_header_search_path_detection_finds_path_relative_to_sub_directory/a.cpp") },
+			{ FilePath("data/CxxIncludeProcessingTestSuite/test_header_search_path_detection_finds_path_relative_to_sub_directory") },
+			{},
+			1, [](float) {}
+		));
 
-		TS_ASSERT(!headerSearchDirectories.empty());
-		if (!headerSearchDirectories.empty())
-		{
-			TS_ASSERT_EQUALS(
-				"CxxIncludeProcessingTestSuite/test_header_search_path_detection_finds_path_relative_to_sub_directory/include",
-				headerSearchDirectories.begin()->getRelativeTo(FilePath("data").getAbsolute()).str()
-			);
-		}
+		TS_ASSERT(utility::containsElement<FilePath>(
+			headerSearchDirectories,
+			FilePath("data/CxxIncludeProcessingTestSuite/test_header_search_path_detection_finds_path_relative_to_sub_directory/include").makeAbsolute()
+		));
+	}
+
+	void test_header_search_path_detection_finds_path_included_in_header_search_path()
+	{
+		std::vector<FilePath> headerSearchDirectories = utility::toVector(IncludeProcessing::getHeaderSearchDirectories(
+		{ FilePath("data/CxxIncludeProcessingTestSuite/test_header_search_path_detection_finds_path_included_in_header_search_path/a.cpp") },
+		{ FilePath("data/CxxIncludeProcessingTestSuite/test_header_search_path_detection_finds_path_included_in_header_search_path/include_b") },
+		{ FilePath("data/CxxIncludeProcessingTestSuite/test_header_search_path_detection_finds_path_included_in_header_search_path/include_a") },
+			1, [](float) {}
+		));
+
+
+		TS_ASSERT(utility::containsElement<FilePath>(
+			headerSearchDirectories,
+			FilePath("data/CxxIncludeProcessingTestSuite/test_header_search_path_detection_finds_path_included_in_header_search_path/include_b").makeAbsolute()
+		));
+	}
+
+	void test_header_search_path_detection_finds_path_included_in_future_header_search_path()
+	{
+		std::vector<FilePath> headerSearchDirectories = utility::toVector(IncludeProcessing::getHeaderSearchDirectories(
+		{ FilePath("data/CxxIncludeProcessingTestSuite/test_header_search_path_detection_finds_path_included_in_future_header_search_path/a.cpp") },
+		{ FilePath("data/CxxIncludeProcessingTestSuite/test_header_search_path_detection_finds_path_included_in_future_header_search_path") },
+		{  },
+			1, [](float) {}
+		));
+
+		TS_ASSERT(utility::containsElement<FilePath>(
+			headerSearchDirectories,
+			FilePath("data/CxxIncludeProcessingTestSuite/test_header_search_path_detection_finds_path_included_in_future_header_search_path/include_a").makeAbsolute()
+		));
+		TS_ASSERT(utility::containsElement<FilePath>(
+			headerSearchDirectories,
+			FilePath("data/CxxIncludeProcessingTestSuite/test_header_search_path_detection_finds_path_included_in_future_header_search_path/include_b").makeAbsolute()
+		));
 	}
 };