hy/tests/test_bin.py
2019-06-04 14:01:59 -04:00

571 lines
18 KiB
Python

#!/usr/bin/env python
# -*- encoding: utf-8 -*-
# Copyright 2019 the authors.
# This file is part of Hy, which is free software licensed under the Expat
# license. See the LICENSE.
import os
import re
import shlex
import subprocess
import builtins
from hy.importer import cache_from_source
import pytest
hy_dir = os.environ.get('HY_DIR', '')
def hr(s=""):
return "hy --repl-output-fn=hy.contrib.hy-repr.hy-repr " + s
def run_cmd(cmd, stdin_data=None, expect=0, dontwritebytecode=False):
env = dict(os.environ)
if dontwritebytecode:
env["PYTHONDONTWRITEBYTECODE"] = "1"
else:
env.pop("PYTHONDONTWRITEBYTECODE", None)
cmd = shlex.split(cmd)
cmd[0] = os.path.join(hy_dir, cmd[0])
p = subprocess.Popen(cmd,
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
universal_newlines=True,
shell=False,
env=env)
output = p.communicate(input=stdin_data)
assert p.wait() == expect
return output
def rm(fpath):
try:
os.remove(fpath)
except (IOError, OSError):
try:
os.rmdir(fpath)
except (IOError, OSError):
pass
def test_bin_hy():
run_cmd("hy", "")
def test_bin_hy_stdin():
output, _ = run_cmd("hy", '(koan)')
assert "monk" in output
output, _ = run_cmd("hy --spy", '(koan)')
assert "monk" in output
assert "\n Ummon" in output
# --spy should work even when an exception is thrown
output, _ = run_cmd("hy --spy", '(foof)')
assert "foof()" in output
def test_bin_hy_stdin_multiline():
output, _ = run_cmd("hy", '(+ "a" "b"\n"c" "d")')
assert "'abcd'" in output
def test_bin_hy_history():
output, _ = run_cmd("hy", '''(+ "a" "b")
(+ "c" "d")
(+ "e" "f")
(.format "*1: {}, *2: {}, *3: {}," *1 *2 *3)''')
assert "'*1: ef, *2: cd, *3: ab,'" in output
output, _ = run_cmd("hy", '''(raise (Exception "TEST ERROR"))
(+ "err: " (str *e))''')
assert "'err: TEST ERROR'" in output
def test_bin_hy_stdin_comments():
_, err_empty = run_cmd("hy", '')
output, err = run_cmd("hy", '(+ "a" "b") ; "c"')
assert "'ab'" in output
assert err == err_empty
_, err = run_cmd("hy", '; 1')
assert err == err_empty
def test_bin_hy_stdin_assignment():
# If the last form is an assignment, don't print the value.
output, _ = run_cmd("hy", '(setv x (+ "A" "Z"))')
assert "AZ" not in output
output, _ = run_cmd("hy", '(setv x (+ "A" "Z")) (+ "B" "Y")')
assert "AZ" not in output
assert "BY" in output
output, _ = run_cmd("hy", '(+ "B" "Y") (setv x (+ "A" "Z"))')
assert "AZ" not in output
assert "BY" not in output
def test_bin_hy_stdin_as_arrow():
# https://github.com/hylang/hy/issues/1255
output, _ = run_cmd("hy", "(as-> 0 it (inc it) (inc it))")
assert re.match(r"=>\s+2L?\s+=>", output)
def test_bin_hy_stdin_error_underline_alignment():
_, err = run_cmd("hy", "(defmacro mabcdefghi [x] x)\n(mabcdefghi)")
msg_idx = err.rindex(" (mabcdefghi)")
assert msg_idx
err_parts = err[msg_idx:].splitlines()
assert err_parts[1].startswith(" ^----------^")
assert err_parts[2].startswith("expanding macro mabcdefghi")
assert (err_parts[3].startswith(" TypeError: mabcdefghi") or
# PyPy can use a function's `__name__` instead of
# `__code__.co_name`.
err_parts[3].startswith(" TypeError: (mabcdefghi)"))
def test_bin_hy_stdin_except_do():
# https://github.com/hylang/hy/issues/533
output, _ = run_cmd("hy", '(try (/ 1 0) (except [ZeroDivisionError] "hello"))') # noqa
assert "hello" in output
output, _ = run_cmd("hy", '(try (/ 1 0) (except [ZeroDivisionError] "aaa" "bbb" "ccc"))') # noqa
assert "aaa" not in output
assert "bbb" not in output
assert "ccc" in output
output, _ = run_cmd("hy", '(if True (do "xxx" "yyy" "zzz"))')
assert "xxx" not in output
assert "yyy" not in output
assert "zzz" in output
def test_bin_hy_stdin_unlocatable_hytypeerror():
# https://github.com/hylang/hy/issues/1412
# The chief test of interest here is the returncode assertion
# inside run_cmd.
_, err = run_cmd("hy", """
(import hy.errors)
(raise (hy.errors.HyTypeError (+ "A" "Z") None '[] None))""")
assert "AZ" in err
def test_bin_hy_error_parts_length():
"""Confirm that exception messages print arrows surrounding the affected
expression."""
prg_str = """
(import hy.errors
[hy.importer [hy-parse]])
(setv test-expr (hy-parse "(+ 1\n\n'a 2 3\n\n 1)"))
(setv test-expr.start-line {})
(setv test-expr.start-column {})
(setv test-expr.end-column {})
(raise (hy.errors.HyLanguageError
"this\nis\na\nmessage"
test-expr
None
None))
"""
# Up-arrows right next to each other.
_, err = run_cmd("hy", prg_str.format(3, 1, 2))
msg_idx = err.rindex("HyLanguageError:")
assert msg_idx
err_parts = err[msg_idx:].splitlines()[1:]
expected = [' File "<string>", line 3',
' \'a 2 3',
' ^^',
'this',
'is',
'a',
'message']
for obs, exp in zip(err_parts, expected):
assert obs.startswith(exp)
# Make sure only one up-arrow is printed
_, err = run_cmd("hy", prg_str.format(3, 1, 1))
msg_idx = err.rindex("HyLanguageError:")
assert msg_idx
err_parts = err[msg_idx:].splitlines()[1:]
assert err_parts[2] == ' ^'
# Make sure lines are printed in between arrows separated by more than one
# character.
_, err = run_cmd("hy", prg_str.format(3, 1, 6))
print(err)
msg_idx = err.rindex("HyLanguageError:")
assert msg_idx
err_parts = err[msg_idx:].splitlines()[1:]
assert err_parts[2] == ' ^----^'
def test_bin_hy_stdin_bad_repr():
# https://github.com/hylang/hy/issues/1389
output, err = run_cmd("hy", """
(defclass BadRepr [] (defn __repr__ [self] (/ 0)))
(BadRepr)
(+ "A" "Z")""")
assert "ZeroDivisionError" in err
assert "AZ" in output
def test_bin_hy_stdin_hy_repr():
output, _ = run_cmd("hy", '(+ [1] [2])')
assert "[1, 2]" in output.replace('L', '')
output, _ = run_cmd(hr(), '(+ [1] [2])')
assert "[1 2]" in output
output, _ = run_cmd(hr("--spy"), '(+ [1] [2])')
assert "[1]+[2]" in output.replace('L', '').replace(' ', '')
assert "[1 2]" in output
# --spy should work even when an exception is thrown
output, _ = run_cmd(hr("--spy"), '(+ [1] [2] (foof))')
assert "[1]+[2]" in output.replace('L', '').replace(' ', '')
def test_bin_hy_ignore_python_env():
os.environ.update({"PYTHONTEST": '0'})
output, _ = run_cmd("hy -c '(print (do (import os) (. os environ)))'")
assert "PYTHONTEST" in output
output, _ = run_cmd("hy -m tests.resources.bin.printenv")
assert "PYTHONTEST" in output
output, _ = run_cmd("hy tests/resources/bin/printenv.hy")
assert "PYTHONTEST" in output
output, _ = run_cmd("hy -E -c '(print (do (import os) (. os environ)))'")
assert "PYTHONTEST" not in output
os.environ.update({"PYTHONTEST": '0'})
output, _ = run_cmd("hy -E -m tests.resources.bin.printenv")
assert "PYTHONTEST" not in output
os.environ.update({"PYTHONTEST": '0'})
output, _ = run_cmd("hy -E tests/resources/bin/printenv.hy")
assert "PYTHONTEST" not in output
def test_bin_hy_cmd():
output, _ = run_cmd("hy -c \"(koan)\"")
assert "monk" in output
_, err = run_cmd("hy -c \"(koan\"", expect=1)
assert "Premature end of input" in err
def test_bin_hy_icmd():
output, _ = run_cmd("hy -i \"(koan)\"", "(ideas)")
assert "monk" in output
assert "figlet" in output
def test_bin_hy_icmd_file():
output, _ = run_cmd("hy -i resources/icmd_test_file.hy", "(ideas)")
assert "Hy!" in output
file_relative_path = os.path.realpath(os.path.split('tests/resources/relative_import.hy')[0])
output, _ = run_cmd("hy -i tests/resources/relative_import.hy None")
assert file_relative_path in output
def test_bin_hy_icmd_and_spy():
output, _ = run_cmd("hy -i \"(+ [] [])\" --spy", "(+ 1 1)")
assert "[] + []" in output
def test_bin_hy_missing_file():
_, err = run_cmd("hy foobarbaz", expect=2)
assert "No such file" in err
def test_bin_hy_file_with_args():
assert "usage" in run_cmd("hy tests/resources/argparse_ex.hy -h")[0]
assert "got c" in run_cmd("hy tests/resources/argparse_ex.hy -c bar")[0]
assert "foo" in run_cmd("hy tests/resources/argparse_ex.hy -i foo")[0]
assert "foo" in run_cmd("hy tests/resources/argparse_ex.hy -i foo -c bar")[0] # noqa
def test_bin_hyc():
_, err = run_cmd("hyc", expect=0)
assert err == ''
_, err = run_cmd("hyc -", expect=0)
assert err == ''
output, _ = run_cmd("hyc -h")
assert "usage" in output
path = "tests/resources/argparse_ex.hy"
output, _ = run_cmd("hyc " + path)
assert "Compiling" in output
assert os.path.exists(cache_from_source(path))
rm(cache_from_source(path))
def test_bin_hyc_missing_file():
_, err = run_cmd("hyc foobarbaz", expect=1)
assert "[Errno 2]" in err
def test_bin_hy_builtins():
# hy.cmdline replaces builtins.exit and builtins.quit
# for use by hy's repl.
import hy.cmdline # NOQA
# this test will fail if run from IPython because IPython deletes
# builtins.exit and builtins.quit
assert str(builtins.exit) == "Use (exit) or Ctrl-D (i.e. EOF) to exit"
assert type(builtins.exit) is hy.cmdline.HyQuitter
assert str(builtins.quit) == "Use (quit) or Ctrl-D (i.e. EOF) to exit"
assert type(builtins.quit) is hy.cmdline.HyQuitter
def test_bin_hy_main():
output, _ = run_cmd("hy tests/resources/bin/main.hy")
assert "Hello World" in output
def test_bin_hy_main_args():
output, _ = run_cmd("hy tests/resources/bin/main.hy test 123")
assert "test" in output
assert "123" in output
def test_bin_hy_main_exitvalue():
run_cmd("hy tests/resources/bin/main.hy exit1", expect=1)
def test_bin_hy_no_main():
output, _ = run_cmd("hy tests/resources/bin/nomain.hy")
assert "This Should Still Work" in output
@pytest.mark.parametrize('scenario', ["normal", "prevent_by_force",
"prevent_by_env", "prevent_by_option"])
@pytest.mark.parametrize('cmd_fmt', [['hy', '{fpath}'],
['hy', '-m', '{modname}'],
['hy', '-c', "'(import {modname})'"]])
def test_bin_hy_byte_compile(scenario, cmd_fmt):
modname = "tests.resources.bin.bytecompile"
fpath = modname.replace(".", "/") + ".hy"
if scenario == 'prevent_by_option':
cmd_fmt.insert(1, '-B')
cmd = ' '.join(cmd_fmt).format(**locals())
rm(cache_from_source(fpath))
if scenario == "prevent_by_force":
# Keep Hy from being able to byte-compile the module by
# creating a directory at the target location.
os.mkdir(cache_from_source(fpath))
# Whether or not we can byte-compile the module, we should be able
# to run it.
output, _ = run_cmd(cmd, dontwritebytecode=(scenario == "prevent_by_env"))
assert "Hello from macro" in output
assert "The macro returned: boink" in output
if scenario == "normal":
# That should've byte-compiled the module.
assert os.path.exists(cache_from_source(fpath))
elif scenario == "prevent_by_env" or scenario == "prevent_by_option":
# No byte-compiled version should've been created.
assert not os.path.exists(cache_from_source(fpath))
# When we run the same command again, and we've byte-compiled the
# module, the byte-compiled version should be run instead of the
# source, in which case the macro shouldn't be run.
output, _ = run_cmd(cmd)
assert ("Hello from macro" in output) ^ (scenario == "normal")
assert "The macro returned: boink" in output
def test_bin_hy_module_main():
output, _ = run_cmd("hy -m tests.resources.bin.main")
assert "Hello World" in output
def test_bin_hy_module_main_file():
output, _ = run_cmd("hy -m tests.resources.bin")
assert "This is a __main__.hy" in output
output, _ = run_cmd("hy -m .tests.resources.bin", expect=1)
def test_bin_hy_file_main_file():
output, _ = run_cmd("hy tests/resources/bin")
assert "This is a __main__.hy" in output
def test_bin_hy_file_sys_path():
"""The test resource `relative_import.hy` will perform an absolute import
of a module in its directory: a directory that is not on the `sys.path` of
the script executing the module (i.e. `hy`). We want to make sure that Hy
adopts the file's location in `sys.path`, instead of the runner's current
dir (e.g. '' in `sys.path`).
"""
file_path, _ = os.path.split('tests/resources/relative_import.hy')
file_relative_path = os.path.realpath(file_path)
output, _ = run_cmd("hy tests/resources/relative_import.hy")
assert file_relative_path in output
def test_bin_hy_module_main_args():
output, _ = run_cmd("hy -m tests.resources.bin.main test 123")
assert "test" in output
assert "123" in output
def test_bin_hy_module_main_exitvalue():
run_cmd("hy -m tests.resources.bin.main exit1", expect=1)
def test_bin_hy_module_no_main():
output, _ = run_cmd("hy -m tests.resources.bin.nomain")
assert "This Should Still Work" in output
def test_bin_hy_sys_executable():
output, _ = run_cmd("hy -c '(do (import sys) (print sys.executable))'")
assert output.strip().endswith('/hy')
def test_bin_hy_file_no_extension():
"""Confirm that a file with no extension is processed as Hy source"""
output, _ = run_cmd("hy tests/resources/no_extension")
assert "This Should Still Work" in output
def test_bin_hy_circular_macro_require():
"""Confirm that macros can require themselves during expansion and when
run from the command line."""
# First, with no bytecode
test_file = "tests/resources/bin/circular_macro_require.hy"
rm(cache_from_source(test_file))
assert not os.path.exists(cache_from_source(test_file))
output, _ = run_cmd("hy {}".format(test_file))
assert "42" == output.strip()
# Now, with bytecode
assert os.path.exists(cache_from_source(test_file))
output, _ = run_cmd("hy {}".format(test_file))
assert "42" == output.strip()
def test_bin_hy_macro_require():
"""Confirm that a `require` will load macros into the non-module namespace
(i.e. `exec(code, locals)`) used by `runpy.run_path`.
In other words, this confirms that the AST generated for a `require` will
load macros into the unnamed namespace its run in."""
# First, with no bytecode
test_file = "tests/resources/bin/require_and_eval.hy"
rm(cache_from_source(test_file))
assert not os.path.exists(cache_from_source(test_file))
output, _ = run_cmd("hy {}".format(test_file))
assert "abc" == output.strip()
# Now, with bytecode
assert os.path.exists(cache_from_source(test_file))
output, _ = run_cmd("hy {}".format(test_file))
assert "abc" == output.strip()
def test_bin_hy_tracebacks():
"""Make sure the printed tracebacks are correct."""
# We want the filtered tracebacks.
os.environ['HY_DEBUG'] = ''
def req_err(x):
assert (x == 'hy.errors.HyRequireError: No module named '
"'not_a_real_module'")
# Modeled after
# > python -c 'import not_a_real_module'
# Traceback (most recent call last):
# File "<string>", line 1, in <module>
# ImportError: No module named not_a_real_module
_, error = run_cmd('hy', '(require not-a-real-module)')
error_lines = error.splitlines()
if error_lines[-1] == '':
del error_lines[-1]
assert len(error_lines) <= 10
# Rough check for the internal traceback filtering
req_err(error_lines[4])
_, error = run_cmd('hy -c "(require not-a-real-module)"', expect=1)
error_lines = error.splitlines()
assert len(error_lines) <= 4
req_err(error_lines[-1])
output, error = run_cmd('hy -i "(require not-a-real-module)"')
assert output.startswith('=> ')
print(error.splitlines())
req_err(error.splitlines()[2])
# Modeled after
# > python -c 'print("hi'
# File "<string>", line 1
# print("hi
# ^
# SyntaxError: EOL while scanning string literal
_, error = run_cmd(r'hy -c "(print \""', expect=1)
peoi_re = (
r'Traceback \(most recent call last\):\n'
r' File "(?:<string>|string-[0-9a-f]+)", line 1\n'
r' \(print "\n'
r' \^\n'
r'hy.lex.exceptions.PrematureEndOfInput: Partial string literal\n')
assert re.search(peoi_re, error)
# Modeled after
# > python -i -c "print('"
# File "<string>", line 1
# print('
# ^
# SyntaxError: EOL while scanning string literal
# >>>
output, error = run_cmd(r'hy -i "(print \""')
assert output.startswith('=> ')
assert re.match(peoi_re, error)
# Modeled after
# > python -c 'print(a)'
# Traceback (most recent call last):
# File "<string>", line 1, in <module>
# NameError: name 'a' is not defined
output, error = run_cmd('hy -c "(print a)"', expect=1)
error_lines = error.splitlines()
assert error_lines[3] == ' File "<string>", line 1, in <module>'
# PyPy will add "global" to this error message, so we work around that.
assert error_lines[-1].strip().replace(' global', '') == (
"NameError: name 'a' is not defined")
# Modeled after
# > python -c 'compile()'
# Traceback (most recent call last):
# File "<string>", line 1, in <module>
# TypeError: Required argument 'source' (pos 1) not found
output, error = run_cmd('hy -c "(compile)"', expect=1)
error_lines = error.splitlines()
assert error_lines[-2] == ' File "<string>", line 1, in <module>'
assert error_lines[-1].startswith('TypeError')