fix: suppress warning messages in ErrorHandling test for clean CI/CD output

Author: Omer Bulut

LoggerTest.cpp

@@ -270,6 +270,11 @@ TEST_F(LoggerTest, MultiThreadedLogging) {
 
 // Test 9: Error handling
 TEST_F(LoggerTest, ErrorHandling) {
+    // Redirect stderr to suppress warning messages during this test
+    std::stringstream buffer;
+    std::streambuf* old_stderr = std::cerr.rdbuf();
+    std::cerr.rdbuf(buffer.rdbuf());
+    
     Logger::Config config;
     config.logFilePath = "/invalid/path/test.log"; // Geçersiz path
     config.consoleOutput = true;
@@ -279,6 +284,13 @@ TEST_F(LoggerTest, ErrorHandling) {
         Logger logger(config);
         logger.info("Test message");
     });
+    
+    // Restore stderr
+    std::cerr.rdbuf(old_stderr);
+    
+    // Verify that warning was captured (optional verification)
+    std::string captured = buffer.str();
+    EXPECT_TRUE(captured.find("Warning: Could not create log file") != std::string::npos);
 }
 
 // Test 10: Flush functionality (simplified)