feat:added test files

---
type: pre_push_report
description: Results of running various checks prior to pushing changes.
report:
  - task: run_javascript_examples
    status: na
  - task: run_c_examples
    status: na
  - task: run_cpp_examples
    status: na
  - task: run_javascript_readme_examples
    status: na
  - task: run_c_benchmarks
    status: na
  - task: run_cpp_benchmarks
    status: na
  - task: run_fortran_benchmarks
    status: na
  - task: run_javascript_benchmarks
    status: failed
---

Author: jalajk3004

lib/node_modules/@stdlib/stats/base/dists/signrank/quantile/src/main.c

@@ -17,7 +17,6 @@
 */
 
 #include "stdlib/stats/base/dists/signrank/quantile.h"
-#include "stdlib/math/base/assert/is_nan.h"
 #include <stdio.h>
 
 /**