Pexpect got value from print in child script

I need to write my own testing system, that got file with input() data reading. I have test.py file that run some code and tester.py that run test.py file.

This is for macOS 10.14.2 with Python 3.7.0

test.py

a = []

n = int(input())
for i in range(n):
    a.append(input())

print(*a)

tester.py

import pexpect
import sys

child = pexpect.spawn('python3 test.py', encoding='utf-8')
child.logfile = sys.stdout

n = 5
child.sendline(str(n))
for i in range(n):
    child.sendline(str(i))

Problem in logfile, it return only what input in script. How i can normally got one print value, or all prints in script?