+/**
+ * Check the contents of a file - file @filename must be present on @dev,
+ * and match the @len bytes of @buf.
+ */
+void __check_file_contents(struct parser_test *test,
+ struct discover_device *dev, const char *filename,
+ const char *buf, int len,
+ const char *srcfile, int srcline);
+#define check_file_contents(test, dev, filename, buf, len) \
+ __check_file_contents(test, dev, filename, buf, len, __FILE__, __LINE__)
+