tests: extract_names_from_hash, file_send_prepare [not finished]

test/file_p/extract_names_from_hash.c

@@ -0,0 +1,48 @@
+#include <cmocka.h>
+#include <db/db.h>
+#include <setjmp.h>
+#include <stdarg.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "utils.h"
+#include <file_p.h>
+#include <main.h>
+#include <string.h>
+#include <sys/cdefs.h>
+#include <unistd.h>
+
+typedef struct {
+  int32_t hash;
+  char dir[3];
+  char name[7];
+} name_example_t;
+
+name_example_t samples[] = {
+    {.hash = 2138234, .dir = "00", .name = "20a07a"},
+    {.hash = 123456, .dir = "00", .name = "01e240"},
+    {.hash = 99399234, .dir = "05", .name = "ecb642"},
+};
+
+void test__extract_names_from_hash(void **state) {
+    for (int i = 0 ; i < 3; i++) {
+        char dir[3];
+        char name[7];
+        extract_names_from_hash(samples[i].hash, dir, name);
+        assert_string_equal(dir, samples[i].dir);
+        assert_string_equal(name, samples[i].name);
+    }
+}
+
+int setup(void **state) { return 0; }
+int tear_down(void **state) { return 0; }
+
+int main(int argc, char **argv) {
+  const struct CMUnitTest tests[] = {
+      cmocka_unit_test(test__extract_names_from_hash),
+  };
+
+  return cmocka_run_group_tests(tests, setup, tear_down);
+}