using doctest instead of catch2

src/dummy.cpp

@@ -9,6 +9,7 @@ using namespace std;
 
 void eigenExample(){
     Eigen::MatrixXd m(2,2);
+    m(0,0) = 0;
     m(1,0) = 2.5;
     m(0,1) = -1;
     m(1,1) = m(1,0) + m(0,1);

tests/CMakeLists.txt

@@ -1,11 +1,13 @@
 FetchContent_Declare(
-        catch
-        GIT_REPOSITORY https://github.com/catchorg/Catch2.git
-        GIT_TAG v2.13.6)
-FetchContent_MakeAvailable(catch)
+        doctest
+        GIT_REPOSITORY https://github.com/doctest/doctest.git
+        GIT_TAG v2.4.11)
+FetchContent_MakeAvailable(doctest)
 
-add_executable(testlib testgeometry.cpp)
+set(TESTFILES "dummytest.cpp")
 
-target_link_libraries(testlib PRIVATE Geometry Catch2::Catch2)
+add_executable(testlib test_utils.cpp "${TESTFILES}")
+
+target_link_libraries(testlib PRIVATE Geometry doctest)
 
 add_test(NAME testlibtest COMMAND testlib)

tests/dummytest.cpp

@@ -0,0 +1,10 @@
+//
+// Created by nb on 01.01.24.
+//
+#include <doctest/doctest.h>
+#include "Geometry/dummy.hpp"
+
+TEST_CASE("dummy testcase"){
+    CHECK(true);
+    eigenExample();
+}

tests/test_utils.cpp

@@ -0,0 +1,6 @@
+//
+// Created by nb on 31.12.23.
+//
+
+#define DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN
+#include <doctest/doctest.h>

tests/testgeometry.cpp

@@ -1,12 +0,0 @@
-//
-// Created by nb on 31.12.23.
-//
-
-#define CATCH_CONFIG_MAIN
-#include <catch2/catch.hpp>
-#include <Geometry/dummy.hpp>
-
-TEST_CASE("Test Check","[main]") {
-    eigenExample();
-    REQUIRE( true );
-}