text: #include "../algorithms/shell_sort.h"
  #include "array_equals.h"
  #include "minunit.h"
  #include <stdio.h>
  int tests_run = 0;
  
  int foo = 7;
  int bar = 4;
  
  static char* test_foo() {
    int arr[9] = {4, 9, 5, 6, 8, 7, 1, 2, 3};
    int control_arr[9] = {1, 2, 3, 4, 5, 6, 7, 8, 9};
    shell_sort(arr, 9);
  
    mu_assert("error, array was not sorted", array_equals(control_arr, arr, 9));
    return 0;
  }
  
  static char* all_tests() {
    mu_run_test(test_foo);
    return 0;
  }
  
  int main(int argc, char** argv) {
    char* result = all_tests();
    if (result != 0) {
      printf("%s\n", result);
    } else {
      printf("ALL TESTS PASSED\n");
    }
    printf("Tests run: %d\n", tests_run);
  
    return result != 0;
  }
  