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pip/tests/functional/test_help.py
2017-08-31 14:53:00 -04:00

90 lines
2.5 KiB
Python

import pytest
from mock import Mock
from pip._internal.basecommand import ERROR, SUCCESS
from pip._internal.commands import commands_dict as commands
from pip._internal.commands.help import HelpCommand
from pip._internal.exceptions import CommandError
def test_run_method_should_return_success_when_finds_command_name():
"""
Test HelpCommand.run for existing command
"""
options_mock = Mock()
args = ('freeze',)
help_cmd = HelpCommand()
status = help_cmd.run(options_mock, args)
assert status == SUCCESS
def test_run_method_should_return_success_when_command_name_not_specified():
"""
Test HelpCommand.run when there are no args
"""
options_mock = Mock()
args = ()
help_cmd = HelpCommand()
status = help_cmd.run(options_mock, args)
assert status == SUCCESS
def test_run_method_should_raise_command_error_when_command_does_not_exist():
"""
Test HelpCommand.run for non-existing command
"""
options_mock = Mock()
args = ('mycommand',)
help_cmd = HelpCommand()
with pytest.raises(CommandError):
help_cmd.run(options_mock, args)
def test_help_command_should_exit_status_ok_when_command_exists(script):
"""
Test `help` command for existing command
"""
result = script.pip('help', 'freeze')
assert result.returncode == SUCCESS
def test_help_command_should_exit_status_ok_when_no_cmd_is_specified(script):
"""
Test `help` command for no command
"""
result = script.pip('help')
assert result.returncode == SUCCESS
def test_help_command_should_exit_status_error_when_cmd_does_not_exist(script):
"""
Test `help` command for non-existing command
"""
result = script.pip('help', 'mycommand', expect_error=True)
assert result.returncode == ERROR
def test_help_commands_equally_functional(in_memory_pip):
"""
Test if `pip help` and 'pip --help' behave the same way.
"""
results = list(map(in_memory_pip.pip, ('help', '--help')))
results.append(in_memory_pip.pip())
out = map(lambda x: x.stdout, results)
ret = map(lambda x: x.returncode, results)
msg = '"pip --help" != "pip help" != "pip"'
assert len(set(out)) == 1, 'output of: ' + msg
assert sum(ret) == 0, 'exit codes of: ' + msg
assert all(len(o) > 0 for o in out)
for name, cls in commands.items():
if cls.hidden:
continue
assert (
in_memory_pip.pip('help', name).stdout ==
in_memory_pip.pip(name, '--help').stdout != ""
)