Remove BACFILE dependency in RAM file systems and add mock file object functions for testing (#1227)

test/bacnet/basic/object/test/bacfile_mock.c

@@ -0,0 +1,69 @@
+/**
+ * @file
+ * @brief mock file object functions
+ * @author Steve Karg <skarg@users.sourceforge.net>
+ * @date February 2026
+ *
+ * @copyright SPDX-License-Identifier: MIT
+ */
+#include <zephyr/ztest.h>
+#include <bacnet/bactext.h>
+#include <bacnet/basic/object/bacfile.h>
+
+/**
+ * @brief Sets the callback function for writing stream data
+ * @param callback - function pointer to the callback
+ */
+void bacfile_write_stream_data_callback_set(
+    size_t (*callback)(const char *, int32_t, const uint8_t *, size_t))
+{
+    (void)callback;
+}
+
+/**
+ * @brief Sets the callback function for writing record data
+ * @param callback - function pointer to the callback
+ */
+void bacfile_write_record_data_callback_set(
+    bool (*callback)(const char *, int32_t, size_t, const uint8_t *, size_t))
+{
+    (void)callback;
+}
+
+/**
+ * @brief Sets the callback function for reading record data
+ * @param callback - function pointer to the callback
+ */
+void bacfile_read_record_data_callback_set(
+    bool (*callback)(const char *, int32_t, size_t, uint8_t *, size_t))
+{
+    (void)callback;
+}
+
+/**
+ * @brief Sets the callback function for reading stream data
+ * @param callback - function pointer to the callback
+ */
+void bacfile_read_stream_data_callback_set(
+    size_t (*callback)(const char *, int32_t, uint8_t *, size_t))
+{
+    (void)callback;
+}
+
+/**
+ * @brief Sets the callback function for getting file size
+ * @param callback - function pointer to the callback
+ */
+void bacfile_file_size_callback_set(size_t (*callback)(const char *))
+{
+    (void)callback;
+}
+
+/**
+ * @brief Sets the callback function for setting file size
+ * @param callback - function pointer to the callback
+ */
+void bacfile_file_size_set_callback_set(bool (*callback)(const char *, size_t))
+{
+    (void)callback;
+}