test(tests/meshIO): added basic test suite for meshIO

just tests the constuctor, getMesh, and isLoaded method. This confirms that a basic spherical mesh can be loaded in correctly

tests/meshIO/meshIOTest.cpp

@@ -0,0 +1,26 @@
+#include <gtest/gtest.h>
+#include "meshIO.h"
+#include <iostream>
+#include <string>
+#include "mfem.hpp"
+
+std::string EXAMPLE_FILENAME = std::string(getenv("MESON_SOURCE_ROOT")) + "/src/resources/mesh/sphere.msh";
+
+
+class meshIOTest : public ::testing::Test {};
+
+TEST_F(meshIOTest, DefaultConstructor) {
+    EXPECT_NO_THROW(MeshIO meshIO(EXAMPLE_FILENAME));
+}
+
+TEST_F(meshIOTest, IsLoaded) {
+    MeshIO meshIO(EXAMPLE_FILENAME);
+    EXPECT_EQ(meshIO.IsLoaded(), true);
+}
+
+TEST_F(meshIOTest, GetMesh) {
+    MeshIO meshIO(EXAMPLE_FILENAME);
+    mfem::Mesh& mesh = meshIO.GetMesh();
+    EXPECT_EQ(mesh.GetNE(), 670);
+    EXPECT_EQ(mesh.GetNV(), 201);
+}

tests/meshIO/meson.build

@@ -0,0 +1,22 @@
+# Test files for mesh
+test_sources = [
+    'meshIOTest.cpp',
+]
+
+foreach test_file : test_sources
+  exe_name = test_file.split('.')[0]
+  message('Building test: ' + exe_name)
+
+  # Create an executable target for each test
+  test_exe = executable(
+      exe_name,
+      test_file,
+      dependencies: [gtest_dep, mfem_dep],
+      include_directories: include_directories('../../src/meshIO/public'),
+      link_with: libmeshIO,  # Link the dobj library
+      install_rpath: '@loader_path/../../src'  # Ensure runtime library path resolves correctly
+  )
+
+  # Add the executable as a test
+  test(exe_name, test_exe)
+endforeach

tests/meson.build

@@ -6,6 +6,7 @@ gtest_nomain_dep = dependency('gtest', main: false, required : true)
 subdir('dobj')
 subdir('const')
 subdir('opatIO')
+subdir('meshIO')
 
 # Subdirectories for sandbox tests
 subdir('dobj_sandbox')