diff --git a/.gitignore b/.gitignore
index e5b80f0..b28b04f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,3 @@
-CMakeLists.txt
+
 
 
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9acc0fc..180c387 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,5 +5,5 @@ endforeach()
 aux_source_directory(. DIR_SRCS)
 add_library(Stage-Discharge-Relation ${CMAKE_LIB_TYPE} ${DIR_SRCS})
 
-#add_subdirectory("test-hdsmf")
+add_subdirectory("test-hdsmf")
 
diff --git a/calc_gate.c b/calc_gate.c
index f410d4a..22d7488 100644
--- a/calc_gate.c
+++ b/calc_gate.c
@@ -80,7 +80,7 @@ const coefficient_infor coefficient={
 */
 int data_validity_check(struct param_gate *param)
 {
-	if(param->wingwall >=warped_wingwall || param->wingwall<=parallel_wingwall){
+	if(param->wingwall < warped_wingwall || param->wingwall>parallel_wingwall){
 		return -1;
 	}
 	if(!(param->drop_step == 0 || param->drop_step == 1)){
diff --git a/test-hdsmf/CMakeLists.txt b/test-hdsmf/CMakeLists.txt
new file mode 100644
index 0000000..80a34e1
--- /dev/null
+++ b/test-hdsmf/CMakeLists.txt
@@ -0,0 +1,8 @@
+
+add_executable("test-hdsmf" "test-hdsmf.c" )
+
+target_link_libraries("test-hdsmf" Stage-Discharge-Relation)
+
+
+find_package("Threads")
+target_link_libraries("test-hdsmf" ${CMAKE_THREAD_LIBS_INIT})
\ No newline at end of file