Add test checking COM_BINLOG_DUMP enables fast_forward

test/tap/tests/test_com_binlog_dump_enables_fast_forward-t.cpp

@@ -0,0 +1,28 @@
+/**
+ * @file test_com_binlog_dump_enables_fast_forward-t.cpp
+ * @brief Test COM_BINLOG_DUMP enables fast forward.
+ * @details Test checks if mysqlbinlog is executed successfully using a user
+ * with fast forward flag set to false. mysqlginlog sends command
+ * COM_BINLOG_DUMP, then ProxySQL enables fast forward.
+ */
+
+#include "tap.h"
+#include "command_line.h"
+
+int main(int argc, char** argv) {
+	CommandLine cl;
+
+	if (cl.getEnv()) {
+		diag("Failed to get the required environmental variables.");
+		return -1;
+	}
+
+	const std::string user = "sbtest1";
+
+	const int mysqlbinlog_res = system(("mysqlbinlog single_mysql8_backend-bin.000001 "
+										"--read-from-remote-server --user " + user + " --password=" + user +
+										" --host 127.0.0.1 --port 6033").c_str());
+	ok(mysqlbinlog_res == 0, "'mysqlbinlog' should be correctly executed. Err code was: %d", mysqlbinlog_res);
+
+	return exit_status();
+}