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# Copyright 2018 the Deno authors. All rights reserved. MIT license.
import os
from subprocess import PIPE, Popen
import sys
from time import sleep
from util import build_path, executable_suffix, green_ok
class Repl(object):
def __init__(self, deno_exe):
self.deno_exe = deno_exe
self.warm_up()
def input(self, *lines, **kwargs):
exit_ = kwargs.pop("exit", True)
p = Popen([self.deno_exe], stdout=PIPE, stderr=PIPE, stdin=PIPE)
try:
for line in lines:
p.stdin.write(line.encode("utf-8") + b'\n')
if exit_:
p.stdin.write(b'deno.exit(0)\n')
else:
sleep(1) # wait to be killed by js
out, err = p.communicate()
except Exception as e: # Should this be CalledProcessError?
p.kill()
p.wait()
raise
retcode = p.poll()
# Ignore Windows CRLF (\r\n).
return out.replace('\r\n', '\n'), err.replace('\r\n', '\n'), retcode
def warm_up(self):
# This may output an error message about the history file (ignore it).
self.input("")
def test_function(self):
out, err, code = self.input("deno.writeFileSync")
assertEqual(out, '[Function: writeFileSync]\n')
assertEqual(err, '')
assertEqual(code, 0)
def test_console_log(self):
out, err, code = self.input("console.log('hello')", "'world'")
assertEqual(out, 'hello\nundefined\nworld\n')
assertEqual(err, '')
assertEqual(code, 0)
def test_variable(self):
out, err, code = self.input("var a = 123;", "a")
assertEqual(out, 'undefined\n123\n')
assertEqual(err, '')
assertEqual(code, 0)
def test_settimeout(self):
out, err, code = self.input(
"setTimeout(() => { console.log('b'); deno.exit(0); }, 10)",
"'a'",
exit=False)
assertEqual(out, '1\na\nb\n')
assertEqual(err, '')
assertEqual(code, 0)
def test_reference_error(self):
out, err, code = self.input("not_a_variable")
assertEqual(out, '')
assertEqual(err, 'ReferenceError: not_a_variable is not defined\n')
assertEqual(code, 0)
def test_syntax_error(self):
out, err, code = self.input("syntax error")
assertEqual(out, '')
assertEqual(err, "SyntaxError: Unexpected identifier\n")
assertEqual(code, 0)
def test_type_error(self):
out, err, code = self.input("console()")
assertEqual(out, '')
assertEqual(err, 'TypeError: console is not a function\n')
assertEqual(code, 0)
def test_multiline(self):
out, err, code = self.input("(\n1 + 2\n)")
assertEqual(out, '3\n')
assertEqual(err, '')
assertEqual(code, 0)
def test_exit_command(self):
out, err, code = self.input(".exit", "'ignored'", exit=False)
assertEqual(out, '')
assertEqual(err, '')
assertEqual(code, 0)
def run(self):
print('repl_test.py')
test_names = [name for name in dir(self) if name.startswith("test_")]
for t in test_names:
self.__getattribute__(t)()
sys.stdout.write(".")
sys.stdout.flush()
print(' {}\n'.format(green_ok()))
def assertEqual(left, right):
if left != right:
raise AssertionError("{} != {}".format(repr(left), repr(right)))
def repl_tests(deno_exe):
Repl(deno_exe).run()
if __name__ == "__main__":
deno_exe = os.path.join(build_path(), "deno" + executable_suffix)
repl_tests(deno_exe)
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