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wuttjamaican/tests/test_install.py

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# -*- coding: utf-8; -*-
import os
import sys
from unittest.mock import patch, MagicMock
import pytest
from mako.lookup import TemplateLookup
from wuttjamaican import install as mod
from wuttjamaican.testing import ConfigTestCase
class TestInstallHandler(ConfigTestCase):
def make_handler(self, **kwargs):
return mod.InstallHandler(self.config, **kwargs)
def test_constructor(self):
handler = self.make_handler()
self.assertEqual(handler.pkg_name, 'poser')
self.assertEqual(handler.app_title, 'poser')
self.assertEqual(handler.pypi_name, 'poser')
self.assertEqual(handler.egg_name, 'poser')
def test_run(self):
handler = self.make_handler()
with patch.object(handler, 'show_welcome') as show_welcome:
with patch.object(handler, 'sanity_check') as sanity_check:
with patch.object(handler, 'do_install_steps') as do_install_steps:
handler.run()
show_welcome.assert_called_once_with()
sanity_check.assert_called_once_with()
do_install_steps.assert_called_once_with()
def test_show_welcome(self):
handler = self.make_handler()
with patch.object(mod, 'sys') as sys:
with patch.object(handler, 'rprint') as rprint:
with patch.object(handler, 'prompt_bool') as prompt_bool:
# user continues
prompt_bool.return_value = True
handler.show_welcome()
self.assertFalse(sys.exit.called)
# user aborts
prompt_bool.return_value = False
handler.show_welcome()
sys.exit.assert_called_once_with(1)
def test_sanity_check(self):
handler = self.make_handler()
with patch.object(mod, 'sys') as sys:
with patch.object(mod, 'os') as os:
with patch.object(handler, 'rprint') as rprint:
# pretend appdir does not exist
os.path.exists.return_value = False
handler.sanity_check()
self.assertFalse(sys.exit.called)
# pretend appdir does exist
os.path.exists.return_value = True
handler.sanity_check()
sys.exit.assert_called_once_with(2)
def test_do_install_steps(self):
handler = self.make_handler()
handler.templates = TemplateLookup(directories=[
self.app.resource_path('wuttjamaican:templates/install'),
])
dbinfo = {
'dburl': f'sqlite:///{self.tempdir}/poser.sqlite',
}
orig_import = __import__
mock_prompt = MagicMock()
def mock_import(name, globals=None, locals=None, fromlist=(), level=0):
if name == 'prompt_toolkit':
if fromlist == ('prompt',):
return MagicMock(prompt=mock_prompt)
return orig_import(name, globals, locals, fromlist, level)
with patch('builtins.__import__', side_effect=mock_import):
with patch.object(handler, 'get_dbinfo', return_value=dbinfo):
with patch.object(handler, 'install_db_schema') as install_db_schema:
# nb. just for sanity/coverage
install_db_schema.return_value = True
self.assertFalse(hasattr(handler, 'schema_installed'))
handler.do_install_steps()
self.assertTrue(handler.schema_installed)
install_db_schema.assert_called_once_with(dbinfo['dburl'])
def test_get_dbinfo(self):
try:
import sqlalchemy
except ImportError:
pytest.skip("test is not relevant without sqlalchemy")
handler = self.make_handler()
def prompt_generic(info, default=None, is_password=False):
if info in ('db name', 'db user'):
return 'poser'
if is_password:
return 'seekrit'
return default
with patch.object(mod, 'sys') as sys:
with patch.object(handler, 'prompt_generic', side_effect=prompt_generic):
with patch.object(handler, 'test_db_connection') as test_db_connection:
with patch.object(handler, 'rprint') as rprint:
# bad dbinfo
test_db_connection.return_value = "bad dbinfo"
sys.exit.side_effect = RuntimeError
self.assertRaises(RuntimeError, handler.get_dbinfo)
sys.exit.assert_called_once_with(1)
# good dbinfo
sys.exit.reset_mock()
test_db_connection.return_value = None
dbinfo = handler.get_dbinfo()
self.assertFalse(sys.exit.called)
rprint.assert_called_with("[bold green]good[/bold green]")
self.assertEqual(str(dbinfo['dburl']),
'postgresql+psycopg2://poser:seekrit@localhost:5432/poser')
def test_make_db_url(self):
try:
import sqlalchemy
except ImportError:
pytest.skip("test is not relevant without sqlalchemy")
handler = self.make_handler()
url = handler.make_db_url('postgresql', 'localhost', '5432', 'poser', 'poser', 'seekrit')
self.assertEqual(str(url), 'postgresql+psycopg2://poser:seekrit@localhost:5432/poser')
url = handler.make_db_url('mysql', 'localhost', '3306', 'poser', 'poser', 'seekrit')
self.assertEqual(str(url), 'mysql+mysqlconnector://poser:seekrit@localhost:3306/poser')
def test_test_db_connection(self):
try:
import sqlalchemy as sa
except ImportError:
pytest.skip("test is not relevant without sqlalchemy")
handler = self.make_handler()
# db does not exist
result = handler.test_db_connection('sqlite:///bad/url/should/not/exist')
self.assertIn('unable to open database file', result)
# db is setup
url = f'sqlite:///{self.tempdir}/db.sqlite'
engine = sa.create_engine(url)
with engine.begin() as cxn:
cxn.execute(sa.text("create table whatever (id int primary key);"))
self.assertIsNone(handler.test_db_connection(url))
def test_make_template_context(self):
handler = self.make_handler()
dbinfo = {'dburl': 'sqlite:///poser.sqlite'}
context = handler.make_template_context(dbinfo)
self.assertEqual(context['envdir'], sys.prefix)
self.assertEqual(context['pkg_name'], 'poser')
self.assertEqual(context['app_title'], 'poser')
self.assertEqual(context['pypi_name'], 'poser')
self.assertEqual(context['egg_name'], 'poser')
self.assertEqual(context['appdir'], os.path.join(sys.prefix, 'app'))
self.assertEqual(context['db_url'], 'sqlite:///poser.sqlite')
def test_make_appdir(self):
handler = self.make_handler()
handler.templates = TemplateLookup(directories=[
self.app.resource_path('wuttjamaican:templates/install'),
])
dbinfo = {'dburl': 'sqlite:///poser.sqlite'}
context = handler.make_template_context(dbinfo)
handler.make_appdir(context, appdir=self.tempdir)
wutta_conf = os.path.join(self.tempdir, 'wutta.conf')
with open(wutta_conf, 'rt') as f:
self.assertIn('default.url = sqlite:///poser.sqlite', f.read())
def test_install_db_schema(self):
try:
import sqlalchemy as sa
except ImportError:
pytest.skip("test is not relevant without sqlalchemy")
handler = self.make_handler()
db_url = f'sqlite:///{self.tempdir}/poser.sqlite'
wutta_conf = self.write_file('wutta.conf', f"""
[wutta.db]
default.url = {db_url}
""")
# convert to proper URL object
db_url = sa.create_engine(db_url).url
with patch.object(mod, 'subprocess') as subprocess:
# user declines offer to install schema
with patch.object(handler, 'prompt_bool', return_value=False):
self.assertFalse(handler.install_db_schema(db_url, appdir=self.tempdir))
# user agrees to install schema
with patch.object(handler, 'prompt_bool', return_value=True):
self.assertTrue(handler.install_db_schema(db_url, appdir=self.tempdir))
subprocess.check_call.assert_called_once_with([
os.path.join(sys.prefix, 'bin', 'alembic'),
'-c', wutta_conf, 'upgrade', 'heads'])
def test_show_goodbye(self):
handler = self.make_handler()
with patch.object(handler, 'rprint') as rprint:
handler.schema_installed = True
handler.show_goodbye()
rprint.assert_any_call("\n\t[bold green]initial setup is complete![/bold green]")
rprint.assert_any_call("\t[blue]bin/pserve file+ini:app/web.conf[/blue]")
def test_require_prompt_toolkit_installed(self):
# nb. this assumes we *do* have prompt_toolkit installed
handler = self.make_handler()
with patch.object(mod, 'subprocess') as subprocess:
handler.require_prompt_toolkit(answer='Y')
self.assertFalse(subprocess.check_call.called)
def test_require_prompt_toolkit_missing(self):
handler = self.make_handler()
orig_import = __import__
stuff = {'attempts': 0}
def mock_import(name, globals=None, locals=None, fromlist=(), level=0):
if name == 'prompt_toolkit':
# nb. pretend this is not installed
raise ImportError
return orig_import(name, globals, locals, fromlist, level)
# prompt_toolkit not installed, and user declines offer to install
with patch('builtins.__import__', side_effect=mock_import):
with patch.object(mod, 'subprocess') as subprocess:
with patch.object(mod, 'sys') as sys:
sys.exit.side_effect = RuntimeError
self.assertRaises(RuntimeError, handler.require_prompt_toolkit, answer='N')
self.assertFalse(subprocess.check_call.called)
sys.stderr.write.assert_called_once_with("prompt_toolkit is required; aborting\n")
sys.exit.assert_called_once_with(1)
def test_require_prompt_toolkit_missing_then_installed(self):
handler = self.make_handler()
orig_import = __import__
stuff = {'attempts': 0}
def mock_import(name, globals=None, locals=None, fromlist=(), level=0):
if name == 'prompt_toolkit':
stuff['attempts'] += 1
if stuff['attempts'] == 1:
# nb. pretend this is not installed
raise ImportError
return orig_import('prompt_toolkit')
return orig_import(name, globals, locals, fromlist, level)
# prompt_toolkit not installed, and user declines offer to install
with patch('builtins.__import__', side_effect=mock_import):
with patch.object(mod, 'subprocess') as subprocess:
with patch.object(mod, 'sys') as sys:
sys.executable = 'python'
handler.require_prompt_toolkit(answer='Y')
subprocess.check_call.assert_called_once_with(['python', '-m', 'pip',
'install', 'prompt_toolkit'])
self.assertFalse(sys.exit.called)
self.assertEqual(stuff['attempts'], 2)
def test_prompt_generic(self):
handler = self.make_handler()
style = handler.get_prompt_style()
orig_import = __import__
mock_prompt = MagicMock()
def mock_import(name, globals=None, locals=None, fromlist=(), level=0):
if name == 'prompt_toolkit':
if fromlist == ('prompt',):
return MagicMock(prompt=mock_prompt)
return orig_import(name, globals, locals, fromlist, level)
with patch('builtins.__import__', side_effect=mock_import):
with patch.object(handler, 'get_prompt_style', return_value=style):
with patch.object(handler, 'rprint') as rprint:
# no input or default value
mock_prompt.return_value = ''
result = handler.prompt_generic('foo')
self.assertIsNone(result)
mock_prompt.assert_called_once_with([('', '\n'),
('class:bold', 'foo'),
('', ': ')],
style=style, is_password=False)
# fallback to default value
mock_prompt.reset_mock()
mock_prompt.return_value = ''
result = handler.prompt_generic('foo', default='baz')
self.assertEqual(result, 'baz')
mock_prompt.assert_called_once_with([('', '\n'),
('class:bold', 'foo'),
('', ' [baz]: ')],
style=style, is_password=False)
# text input value
mock_prompt.reset_mock()
mock_prompt.return_value = 'bar'
result = handler.prompt_generic('foo')
self.assertEqual(result, 'bar')
mock_prompt.assert_called_once_with([('', '\n'),
('class:bold', 'foo'),
('', ': ')],
style=style, is_password=False)
# bool value (no default; true input)
mock_prompt.reset_mock()
mock_prompt.return_value = 'Y'
result = handler.prompt_generic('foo', is_bool=True)
self.assertTrue(result)
mock_prompt.assert_called_once_with([('', '\n'),
('class:bold', 'foo'),
('', ': ')],
style=style, is_password=False)
# bool value (no default; false input)
mock_prompt.reset_mock()
mock_prompt.return_value = 'N'
result = handler.prompt_generic('foo', is_bool=True)
self.assertFalse(result)
mock_prompt.assert_called_once_with([('', '\n'),
('class:bold', 'foo'),
('', ': ')],
style=style, is_password=False)
# bool value (default; no input)
mock_prompt.reset_mock()
mock_prompt.return_value = ''
result = handler.prompt_generic('foo', is_bool=True, default=True)
self.assertTrue(result)
mock_prompt.assert_called_once_with([('', '\n'),
('class:bold', 'foo'),
('', ' [Y]: ')],
style=style, is_password=False)
# bool value (bad input)
mock_prompt.reset_mock()
counter = {'attempts': 0}
def omg(*args, **kwargs):
counter['attempts'] += 1
if counter['attempts'] == 1:
# nb. bad input first time we ask
return 'doesnotmakesense'
# nb. but good input after that
return 'N'
mock_prompt.side_effect = omg
result = handler.prompt_generic('foo', is_bool=True)
self.assertFalse(result)
# nb. user was prompted twice
self.assertEqual(mock_prompt.call_count, 2)
# Ctrl+C
mock_prompt.reset_mock()
mock_prompt.side_effect = KeyboardInterrupt
with patch.object(mod, 'sys') as sys:
sys.exit.side_effect = RuntimeError
self.assertRaises(RuntimeError, handler.prompt_generic, 'foo')
sys.exit.assert_called_once_with(1)
# Ctrl+D
mock_prompt.reset_mock()
mock_prompt.side_effect = EOFError
with patch.object(mod, 'sys') as sys:
sys.exit.side_effect = RuntimeError
self.assertRaises(RuntimeError, handler.prompt_generic, 'foo')
sys.exit.assert_called_once_with(1)
# missing required value
mock_prompt.reset_mock()
counter = {'attempts': 0}
def omg(*args, **kwargs):
counter['attempts'] += 1
if counter['attempts'] == 1:
# nb. no input first time we ask
return ''
# nb. but good input after that
return 'bar'
mock_prompt.side_effect = omg
result = handler.prompt_generic('foo', required=True)
self.assertEqual(result, 'bar')
# nb. user was prompted twice
self.assertEqual(mock_prompt.call_count, 2)
def test_prompt_bool(self):
handler = self.make_handler()
orig_import = __import__
mock_prompt = MagicMock()
def mock_import(name, globals=None, locals=None, fromlist=(), level=0):
if name == 'prompt_toolkit':
if fromlist == ('prompt',):
return MagicMock(prompt=mock_prompt)
return orig_import(name, globals, locals, fromlist, level)
with patch('builtins.__import__', side_effect=mock_import):
with patch.object(handler, 'rprint') as rprint:
# no default; true input
mock_prompt.reset_mock()
mock_prompt.return_value = 'Y'
result = handler.prompt_bool('foo')
self.assertTrue(result)
mock_prompt.assert_called_once()
# no default; false input
mock_prompt.reset_mock()
mock_prompt.return_value = 'N'
result = handler.prompt_bool('foo')
self.assertFalse(result)
mock_prompt.assert_called_once()
# default; no input
mock_prompt.reset_mock()
mock_prompt.return_value = ''
result = handler.prompt_bool('foo', default=True)
self.assertTrue(result)
mock_prompt.assert_called_once()
# bad input
mock_prompt.reset_mock()
counter = {'attempts': 0}
def omg(*args, **kwargs):
counter['attempts'] += 1
if counter['attempts'] == 1:
# nb. bad input first time we ask
return 'doesnotmakesense'
# nb. but good input after that
return 'N'
mock_prompt.side_effect = omg
result = handler.prompt_bool('foo')
self.assertFalse(result)
# nb. user was prompted twice
self.assertEqual(mock_prompt.call_count, 2)