test(tests/config): config tests added

tests/config/configTest.cpp

@@ -0,0 +1,60 @@
+#include <gtest/gtest.h>
+#include "config.h"
+#include <iostream>
+#include <string>
+#include <vector>
+#include <set>
+#include <sstream>
+
+std::string EXAMPLE_FILENAME = std::string(getenv("MESON_SOURCE_ROOT")) + "/tests/config/example.yaml";
+/**
+ * @file configTest.cpp
+ * @brief Unit tests for the Config class.
+ */
+
+/**
+ * @brief Test suite for the Config class.
+ */
+class configTest : public ::testing::Test {};
+
+/**
+ * @brief Test the constructor of the Config class.
+ */
+TEST_F(configTest, constructor) {
+    EXPECT_NO_THROW(Config::getInstance());
+}
+
+TEST_F(configTest, loadConfig) {
+    Config& config = Config::getInstance();
+    EXPECT_TRUE(config.loadConfig(EXAMPLE_FILENAME));
+}
+
+TEST_F(configTest, singletonTest) {
+    Config& config1 = Config::getInstance();
+    Config& config2 = Config::getInstance();
+    EXPECT_EQ(&config1, &config2);
+}
+
+TEST_F(configTest, getTest) {
+    Config& config = Config::getInstance();
+    config.loadConfig(EXAMPLE_FILENAME);
+    int maxIter = config.get<int>("opac:lowTemp:numeric:maxIter", 10);
+    EXPECT_EQ(maxIter, 100);
+    EXPECT_NE(maxIter, 10);
+
+    std::string logLevel = config.get<std::string>("logLevel", "DEBUG");
+    EXPECT_EQ(logLevel, "INFO");
+    EXPECT_NE(logLevel, "DEBUG");
+
+    float polytropicIndex = config.get<float>("poly:physics:index", 2);
+    EXPECT_EQ(polytropicIndex, 1.5);
+    EXPECT_NE(polytropicIndex, 2);
+
+    float polytropicIndex2 = config.get<float>("poly:physics:index2", 2.0);
+    EXPECT_EQ(polytropicIndex2, 2.0);
+}
+
+TEST_F(configTest, secondSingleton) {
+    Config& config = Config::getInstance();
+    EXPECT_EQ(config.get<int>("opac:lowTemp:numeric:maxIter", 10), 100);
+}

tests/config/example.yaml

@@ -0,0 +1,32 @@
+# High level options
+logLevel: "INFO"
+outputDir: output
+
+# Module options
+poly:
+  numeric:
+    newtonTol: 1e-6
+    newtonMaxIter: 100
+    gmresTol: 1e-6
+    gmresMaxIter: 100
+  physics:
+    index: 1.5
+  
+# Module options
+opac:
+  highTemp:
+    physics:
+      table: "/path/to/highTempTable.dat"
+    numeric:
+      tol: 1e-6
+      maxIter: 100
+  lowTemp:
+    physics:
+      table: "/path/to/lowTempTable.dat"
+    numeric:
+      tol: 1e-6
+      maxIter: 100
+
+mesh:
+  structure:
+    refine: 2

tests/config/meson.build

@@ -0,0 +1,25 @@
+# Test files for const
+test_sources = [
+    'configTest.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, config_dep],
+      include_directories: include_directories('../../src/config/public'),
+      link_with: libconst,  # 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,
+    env: ['MESON_SOURCE_ROOT=' + meson.project_source_root(), 'MESON_BUILD_ROOT=' + meson.project_build_root()])
+endforeach