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187 lines
6.3 KiB
Python
187 lines
6.3 KiB
Python
# Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
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import os
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import shutil
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from subprocess import CalledProcessError, PIPE, Popen
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import sys
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import time
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from test_util import DenoTestCase, run_tests
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class TestRepl(DenoTestCase):
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def input(self, *lines, **kwargs):
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exit_ = kwargs.pop("exit", True)
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sleep_ = kwargs.pop("sleep", 0)
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env_ = kwargs.pop("env", None)
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p = Popen([self.deno_exe],
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stdout=PIPE,
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stderr=PIPE,
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stdin=PIPE,
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env=env_)
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try:
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# Note: The repl takes a >100ms until it's ready.
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time.sleep(sleep_)
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for line in lines:
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p.stdin.write(line.encode("utf-8") + b'\n')
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p.stdin.flush()
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time.sleep(sleep_)
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if exit_:
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p.stdin.write(b'Deno.exit(0)\n')
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else:
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time.sleep(1) # wait to be killed by js
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out, err = p.communicate()
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except CalledProcessError as e:
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p.kill()
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p.wait()
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raise e
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retcode = p.poll()
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# Ignore Windows CRLF (\r\n).
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return out.replace('\r\n', '\n'), err.replace('\r\n', '\n'), retcode
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def test_console_log(self):
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out, err, code = self.input("console.log('hello')", "'world'")
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self.assertEqual(out, 'hello\nundefined\nworld\n')
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self.assertEqual(err, '')
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self.assertEqual(code, 0)
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def test_eof(self):
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out, err, code = self.input("1 + 2", exit=False)
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self.assertEqual(out, '3\n')
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self.assertEqual(err, '')
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self.assertEqual(code, 0)
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def test_exit_command(self):
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out, err, code = self.input("exit", "'ignored'", exit=False)
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self.assertEqual(out, '')
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self.assertEqual(err, '')
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self.assertEqual(code, 0)
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def test_help_command(self):
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out, err, code = self.input("help")
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expectedOut = '\n'.join([
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"_ Get last evaluation result",
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"_error Get last thrown error",
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"exit Exit the REPL",
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"help Print this help message",
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"",
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])
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self.assertEqual(out, expectedOut)
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self.assertEqual(err, '')
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self.assertEqual(code, 0)
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def test_function(self):
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out, err, code = self.input("Deno.writeFileSync")
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self.assertEqual(out, '[Function: writeFileSync]\n')
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self.assertEqual(err, '')
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self.assertEqual(code, 0)
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def test_multiline(self):
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out, err, code = self.input("(\n1 + 2\n)")
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self.assertEqual(out, '3\n')
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self.assertEqual(err, '')
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self.assertEqual(code, 0)
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# This should print error instead of wait for input
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def test_eval_unterminated(self):
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out, err, code = self.input("eval('{')")
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self.assertEqual(out, '')
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assert "Unexpected end of input" in err
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self.assertEqual(code, 0)
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def test_reference_error(self):
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out, err, code = self.input("not_a_variable")
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self.assertEqual(out, '')
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assert "not_a_variable is not defined" in err
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self.assertEqual(code, 0)
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# def test_set_timeout(self):
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# out, err, code = self.input(
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# "setTimeout(() => { console.log('b'); Deno.exit(0); }, 1)",
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# "'a'",
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# exit=False)
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# self.assertEqual(out, '1\na\nb\n')
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# self.assertEqual(err, '')
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# self.assertEqual(code, 0)
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# def test_set_timeout_interlaced(self):
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# out, err, code = self.input(
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# "setTimeout(() => console.log('a'), 1)",
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# "setTimeout(() => console.log('b'), 6)",
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# sleep=0.8)
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# self.assertEqual(out, '1\n2\na\nb\n')
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# self.assertEqual(err, '')
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# self.assertEqual(code, 0)
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# def test_async_op(self):
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# out, err, code = self.input(
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# "fetch('http://localhost:4545/cli/tests/001_hello.js')" +
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# ".then(res => res.text()).then(console.log)",
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# sleep=1)
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# self.assertEqual(out, 'Promise {}\nconsole.log("Hello World");\n\n')
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# self.assertEqual(err, '')
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# self.assertEqual(code, 0)
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def test_syntax_error(self):
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out, err, code = self.input("syntax error")
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self.assertEqual(out, '')
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assert "Unexpected identifier" in err
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self.assertEqual(code, 0)
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def test_type_error(self):
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out, err, code = self.input("console()")
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self.assertEqual(out, '')
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assert "console is not a function" in err
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self.assertEqual(code, 0)
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def test_variable(self):
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out, err, code = self.input("var a = 123;", "a")
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self.assertEqual(out, 'undefined\n123\n')
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self.assertEqual(err, '')
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self.assertEqual(code, 0)
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def test_lexical_scoped_variable(self):
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out, err, code = self.input("let a = 123;", "a")
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self.assertEqual(out, 'undefined\n123\n')
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self.assertEqual(err, '')
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self.assertEqual(code, 0)
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def test_missing_deno_dir(self):
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deno_dir = "nonexistent"
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new_env = os.environ.copy()
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new_env["DENO_DIR"] = deno_dir
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out, err, code = self.input("1", exit=False, env=new_env)
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self.assertTrue(os.path.isdir(deno_dir))
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shutil.rmtree(deno_dir)
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self.assertEqual(out, "1\n")
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self.assertEqual(err, "")
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self.assertEqual(code, 0)
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def test_save_last_eval(self):
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out, err, code = self.input("1", "_")
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self.assertEqual(out, '1\n1\n')
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self.assertEqual(err, '')
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self.assertEqual(code, 0)
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def test_save_last_thrown(self):
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out, err, code = self.input("throw 1", "_error")
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self.assertEqual(out, '1\n')
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self.assertEqual(err, 'Thrown: 1\n')
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self.assertEqual(code, 0)
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def test_assign_underscore(self):
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out, err, code = self.input("_ = 1", "2", "_")
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self.assertEqual(
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out, 'Last evaluation result is no longer saved to _.\n1\n2\n1\n')
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self.assertEqual(err, '')
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self.assertEqual(code, 0)
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def test_assign_underscore_error(self):
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out, err, code = self.input("_error = 1", "throw 2", "_error")
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self.assertEqual(
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out, 'Last thrown error is no longer saved to _error.\n1\n1\n')
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self.assertEqual(err, 'Thrown: 2\n')
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self.assertEqual(code, 0)
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if __name__ == "__main__":
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run_tests()
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