From 63b4e49f99fd348b42e1b528d1268ae6b4b1d532 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Max=20L=C3=BCbke?= <mluebke@gfz-potsdam.de>
Date: Thu, 3 Aug 2023 11:12:02 +0200
Subject: [PATCH] Fix handling of CSV file

---
 test/CMakeLists.txt        |  7 +++++++
 test/testSimulation.cpp    | 10 +++++-----
 test/testSimulation.hpp.in |  7 +++++++
 3 files changed, 19 insertions(+), 5 deletions(-)
 create mode 100644 test/testSimulation.hpp.in

diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 709197b..9431fc2 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -14,6 +14,13 @@ endif()
 add_executable(testTug setup.cpp testBoundaryCondition.cpp testDiffusion.cpp testSimulation.cpp)
 target_link_libraries(testTug doctest tug)
 
+# get relative path of the CSV file
+get_filename_component(testSimulationCSV "FTCS_11_11_7000.csv" REALPATH CACHE)
+# set relative path in header file
+configure_file(testSimulation.hpp.in testSimulation.hpp)
+# include test directory with generated header file from above
+target_include_directories(testTug PUBLIC "${CMAKE_CURRENT_BINARY_DIR}")
+
 add_custom_target(
   check
   COMMAND $<TARGET_FILE:testTug>
diff --git a/test/testSimulation.cpp b/test/testSimulation.cpp
index 72beacc..8336cb7 100644
--- a/test/testSimulation.cpp
+++ b/test/testSimulation.cpp
@@ -1,11 +1,11 @@
 #include <stdio.h>
 #include <doctest/doctest.h>
 #include <tug/Simulation.hpp>
-#include <filesystem>
 #include "TestUtils.cpp"
 #include <string>
 
-namespace fs = std::filesystem;
+// include the configured header file
+#include <testSimulation.hpp>
 
 static Grid setupSimulation() {
     int row = 11;
@@ -58,10 +58,10 @@ static Grid setupSimulation() {
 }
 
 TEST_CASE("equality to reference matrix") {
-    fs::path p = fs::current_path(); // .parent_path().parent_path();
-    string test_path = p.generic_string() + "/FTCS_11_11_7000.csv";
+    // set string from the header file
+    string test_path = testSimulationCSVDir;
     MatrixXd reference = CSV2Eigen(test_path);
     cout << test_path << endl;
     Grid grid = setupSimulation();
     CHECK(checkSimilarity(reference, grid.getConcentrations(), 0.1) == true);
-}
\ No newline at end of file
+}
diff --git a/test/testSimulation.hpp.in b/test/testSimulation.hpp.in
new file mode 100644
index 0000000..2e1e19a
--- /dev/null
+++ b/test/testSimulation.hpp.in
@@ -0,0 +1,7 @@
+#ifndef TESTSIMULATION_H_
+#define TESTSIMULATION_H_
+
+// CSV file needed for validation
+const char *testSimulationCSVDir = "@testSimulationCSV@";
+
+#endif // TESTSIMULATION_H_