---
test case: "successfully read"
files:
  /proc/sys/fs/file-max: |
    1612713
out:
  result: '1612713'
  return: 'SYSINFO_RET_OK'
---
test case: "unsuccessfully read"
files:
  /proc/sys/fs/file-max: |
    
out:
  result: 'Cannot obtain data from /proc/sys/fs/file-max.'
  return: 'SYSINFO_RET_FAIL'