FIx input detection

Author: edwbaker

include/data_reader.h

@@ -101,8 +101,8 @@ class DataReader {
             }
         }
 
-        // Determine format: explicit inputFormat takes precedence, otherwise detect from extension
-        bool isCSV = (inputFormat == "csv") || (inputFormat == "json" ? false : FileUtils::isCsvFile(filename));
+        // Determine format: detect from file extension (inputFormat is only for stdin)
+        bool isCSV = FileUtils::isCsvFile(filename);
 
         if (tailLines > 0) {
             // Use tail mode

tests/test_error_detector.cpp

@@ -5,20 +5,11 @@
 #include <cstdlib>
 #include <sys/stat.h>
 #include <cerrno>
-
-#ifdef _WIN32
-#include <direct.h>
-#define MKDIR(path) _mkdir(path)
-#define RMDIR(path) _rmdir(path)
-#else
 #include <unistd.h>
-#define MKDIR(path) mkdir(path, 0755)
-#define RMDIR(path) rmdir(path)
-#endif
 
 // Helper to create a directory
 bool createDir(const std::string& path) {
-    return MKDIR(path.c_str()) == 0 || errno == EEXIST;
+    return mkdir(path.c_str(), 0755) == 0 || errno == EEXIST;
 }
 
 // Helper to remove a file
@@ -28,7 +19,7 @@ void removeFile(const std::string& path) {
 
 // Helper to remove a directory
 void removeDir(const std::string& path) {
-    RMDIR(path.c_str());
+    rmdir(path.c_str());
 }
 
 void test_ds18b20_error_detection() {

tests/test_file_collector.cpp

@@ -3,15 +3,8 @@
 #include <iostream>
 #include <fstream>
 #include <cstdio>
-
-#ifdef _WIN32
-#include <direct.h>
-#define mkdir(path, mode) _mkdir(path)
-#define rmdir _rmdir
-#else
 #include <sys/stat.h>
 #include <unistd.h>
-#endif
 
 // Helper to create temp directory structure
 class TempTestDir {