diff --git a/APP_Framework/Applications/app_test/test_hash/test_hash.h b/APP_Framework/Applications/app_test/test_hash/test_hash.h
new file mode 100644
index 000000000..a5caa0359
--- /dev/null
+++ b/APP_Framework/Applications/app_test/test_hash/test_hash.h
@@ -0,0 +1,37 @@
+#ifndef __HASHMAP_H__
+#define __HASHMAP_H__
+
+#include<stdlib.h>
+#include<string.h>
+#include<stdio.h>
+
+
+typedef struct entry {
+    void* key;
+    void* value;
+    struct entry* next;
+} * Entry;
+
+typedef struct hashMap {
+    int size;
+    int listSize;
+    int (*hashCode)(void*);
+    int (*equal)(void*, void*);
+    Entry list;
+    void (*put)(struct hashMap*, void*, void*);
+    void* (*get)(struct hashMap*, void*);
+    void (*remove)(struct hashMap*, void*);
+    void (*clear)(struct hashMap*);
+    int (*exists)(struct hashMap*, void*);
+    int autoAssign;
+} * HashMap;
+
+HashMap createHashMap(int listSize, int autoAssign);
+void defaultPut(HashMap map, void* key, void* value);
+void* defaultGet(HashMap map, void* key);
+void defaultRemove(HashMap map, void* key);
+void defaultClear(HashMap map);
+int defaultExists(HashMap map, void* key);
+void resetHashMap(HashMap map, int listSize);
+
+#endif // !__HASHMAP_H__
\ No newline at end of file