import RT-Thread@9217865c without bsp, libcpu and components/net

examples/utest/testcases/posix/stdio_h/functions/remove_tc.c

@@ -0,0 +1,35 @@
+#include <stdio.h>
+
+static int remove_entry(void)
+{
+    FILE *stream;
+    stream = fopen("fopen_file.txt","w");
+    if(stream)
+    {
+        fclose(stream);
+        remove("fopen_file.txt");
+        stream = fopen("fopen_file.txt","r");
+        if(stream)
+        {
+            fclose(stream);
+            return -1;
+        }
+    }
+    else
+    {
+        return -1;
+    }
+    return 0;
+}
+
+#include <utest.h>
+static void test_remove(void)
+{
+    uassert_int_equal(remove_entry(), 0);
+}
+static void testcase(void)
+{
+    UTEST_UNIT_RUN(test_remove);
+}
+UTEST_TC_EXPORT(testcase, "rtt_posix_testcase.stdio_h."__FILE__, RT_NULL, RT_NULL, 10);
+