354 lines
14 KiB
Python
354 lines
14 KiB
Python
# SPDX-License-Identifier: GPL-2.0+
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# Copyright 2022 Google LLC
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# Written by Simon Glass <sjg@chromium.org>
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#
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"""Tests for the Bintool class"""
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import collections
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import os
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import shutil
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import tempfile
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import unittest
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import unittest.mock
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import urllib.error
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from binman import bintool
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from binman.bintool import Bintool
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from u_boot_pylib import command
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from u_boot_pylib import terminal
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from u_boot_pylib import test_util
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from u_boot_pylib import tools
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# pylint: disable=R0904
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class TestBintool(unittest.TestCase):
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"""Tests for the Bintool class"""
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def setUp(self):
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# Create a temporary directory for test files
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self._indir = tempfile.mkdtemp(prefix='bintool.')
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self.seq = None
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self.count = None
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self.fname = None
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self.btools = None
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def tearDown(self):
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"""Remove the temporary input directory and its contents"""
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if self._indir:
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shutil.rmtree(self._indir)
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self._indir = None
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def test_missing_btype(self):
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"""Test that unknown bintool types are detected"""
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with self.assertRaises(ValueError) as exc:
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Bintool.create('missing')
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self.assertIn("No module named 'binman.btool.missing'",
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str(exc.exception))
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def test_fresh_bintool(self):
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"""Check that the _testing bintool is not cached"""
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btest = Bintool.create('_testing')
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btest.present = True
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btest2 = Bintool.create('_testing')
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self.assertFalse(btest2.present)
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def test_version(self):
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"""Check handling of a tool being present or absent"""
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btest = Bintool.create('_testing')
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with test_util.capture_sys_output() as (stdout, _):
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btest.show()
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self.assertFalse(btest.is_present())
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self.assertIn('-', stdout.getvalue())
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btest.present = True
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self.assertTrue(btest.is_present())
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self.assertEqual('123', btest.version())
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with test_util.capture_sys_output() as (stdout, _):
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btest.show()
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self.assertIn('123', stdout.getvalue())
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def test_fetch_present(self):
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"""Test fetching of a tool"""
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btest = Bintool.create('_testing')
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btest.present = True
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col = terminal.Color()
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self.assertEqual(bintool.PRESENT,
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btest.fetch_tool(bintool.FETCH_ANY, col, True))
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@classmethod
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def check_fetch_url(cls, fake_download, method):
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"""Check the output from fetching a tool
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Args:
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fake_download (function): Function to call instead of
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tools.download()
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method (bintool.FETCH_...: Fetch method to use
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Returns:
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str: Contents of stdout
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"""
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btest = Bintool.create('_testing')
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col = terminal.Color()
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with unittest.mock.patch.object(tools, 'download',
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side_effect=fake_download):
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with test_util.capture_sys_output() as (stdout, _):
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btest.fetch_tool(method, col, False)
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return stdout.getvalue()
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def test_fetch_url_err(self):
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"""Test an error while fetching a tool from a URL"""
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def fail_download(url):
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"""Take the tools.download() function by raising an exception"""
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raise urllib.error.URLError('my error')
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stdout = self.check_fetch_url(fail_download, bintool.FETCH_ANY)
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self.assertIn('my error', stdout)
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def test_fetch_url_exception(self):
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"""Test an exception while fetching a tool from a URL"""
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def cause_exc(url):
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raise ValueError('exc error')
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stdout = self.check_fetch_url(cause_exc, bintool.FETCH_ANY)
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self.assertIn('exc error', stdout)
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def test_fetch_method(self):
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"""Test fetching using a particular method"""
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def fail_download(url):
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"""Take the tools.download() function by raising an exception"""
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raise urllib.error.URLError('my error')
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stdout = self.check_fetch_url(fail_download, bintool.FETCH_BIN)
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self.assertIn('my error', stdout)
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def test_fetch_pass_fail(self):
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"""Test fetching multiple tools with some passing and some failing"""
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def handle_download(_):
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"""Take the tools.download() function by writing a file"""
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if self.seq:
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raise urllib.error.URLError('not found')
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self.seq += 1
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tools.write_file(fname, expected)
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return fname, dirname
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expected = b'this is a test'
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dirname = os.path.join(self._indir, 'download_dir')
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os.mkdir(dirname)
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fname = os.path.join(dirname, 'downloaded')
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destdir = os.path.join(self._indir, 'dest_dir')
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os.mkdir(destdir)
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dest_fname = os.path.join(destdir, '_testing')
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self.seq = 0
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with unittest.mock.patch.object(bintool, 'DOWNLOAD_DESTDIR', destdir):
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with unittest.mock.patch.object(tools, 'download',
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side_effect=handle_download):
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with test_util.capture_sys_output() as (stdout, _):
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Bintool.fetch_tools(bintool.FETCH_ANY, ['_testing'] * 2)
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self.assertTrue(os.path.exists(dest_fname))
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data = tools.read_file(dest_fname)
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self.assertEqual(expected, data)
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lines = stdout.getvalue().splitlines()
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self.assertTrue(len(lines) > 2)
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self.assertEqual('Tools fetched: 1: _testing', lines[-2])
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self.assertEqual('Failures: 1: _testing', lines[-1])
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def test_tool_list(self):
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"""Test listing available tools"""
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self.assertGreater(len(Bintool.get_tool_list()), 3)
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def check_fetch_all(self, method):
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"""Helper to check the operation of fetching all tools"""
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# pylint: disable=W0613
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def fake_fetch(method, col, skip_present):
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"""Fakes the Binutils.fetch() function
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Returns FETCHED and FAIL on alternate calls
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"""
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self.seq += 1
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result = bintool.FETCHED if self.seq & 1 else bintool.FAIL
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self.count[result] += 1
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return result
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self.seq = 0
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self.count = collections.defaultdict(int)
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with unittest.mock.patch.object(bintool.Bintool, 'fetch_tool',
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side_effect=fake_fetch):
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with test_util.capture_sys_output() as (stdout, _):
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Bintool.fetch_tools(method, ['all'])
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lines = stdout.getvalue().splitlines()
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self.assertIn(f'{self.count[bintool.FETCHED]}: ', lines[-2])
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self.assertIn(f'{self.count[bintool.FAIL]}: ', lines[-1])
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def test_fetch_all(self):
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"""Test fetching all tools"""
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self.check_fetch_all(bintool.FETCH_ANY)
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def test_fetch_all_specific(self):
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"""Test fetching all tools with a specific method"""
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self.check_fetch_all(bintool.FETCH_BIN)
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def test_fetch_missing(self):
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"""Test fetching missing tools"""
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# pylint: disable=W0613
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def fake_fetch2(method, col, skip_present):
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"""Fakes the Binutils.fetch() function
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Returns PRESENT only for the '_testing' bintool
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"""
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btool = list(self.btools.values())[self.seq]
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self.seq += 1
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print('fetch', btool.name)
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if btool.name == '_testing':
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return bintool.PRESENT
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return bintool.FETCHED
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# Preload a list of tools to return when get_tool_list() and create()
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# are called
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all_tools = Bintool.get_tool_list(True)
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self.btools = collections.OrderedDict()
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for name in all_tools:
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self.btools[name] = Bintool.create(name)
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self.seq = 0
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with unittest.mock.patch.object(bintool.Bintool, 'fetch_tool',
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side_effect=fake_fetch2):
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with unittest.mock.patch.object(bintool.Bintool,
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'get_tool_list',
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side_effect=[all_tools]):
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with unittest.mock.patch.object(bintool.Bintool, 'create',
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side_effect=self.btools.values()):
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with test_util.capture_sys_output() as (stdout, _):
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Bintool.fetch_tools(bintool.FETCH_ANY, ['missing'])
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lines = stdout.getvalue().splitlines()
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num_tools = len(self.btools)
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fetched = [line for line in lines if 'Tools fetched:' in line].pop()
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present = [line for line in lines if 'Already present:' in line].pop()
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self.assertIn(f'{num_tools - 1}: ', fetched)
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self.assertIn('1: ', present)
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def check_build_method(self, write_file):
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"""Check the output from fetching using the BUILD method
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Args:
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write_file (bool): True to write the output file when 'make' is
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called
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Returns:
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tuple:
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str: Filename of written file (or missing 'make' output)
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str: Contents of stdout
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"""
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def fake_run(*cmd):
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if cmd[0] == 'make':
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# See Bintool.build_from_git()
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tmpdir = cmd[2]
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self.fname = os.path.join(tmpdir, 'pathname')
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if write_file:
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tools.write_file(self.fname, b'hello')
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btest = Bintool.create('_testing')
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col = terminal.Color()
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self.fname = None
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with unittest.mock.patch.object(bintool, 'DOWNLOAD_DESTDIR',
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self._indir):
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with unittest.mock.patch.object(tools, 'run', side_effect=fake_run):
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with test_util.capture_sys_output() as (stdout, _):
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btest.fetch_tool(bintool.FETCH_BUILD, col, False)
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fname = os.path.join(self._indir, '_testing')
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return fname if write_file else self.fname, stdout.getvalue()
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def test_build_method(self):
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"""Test fetching using the build method"""
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fname, stdout = self.check_build_method(write_file=True)
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self.assertTrue(os.path.exists(fname))
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self.assertIn(f"writing to '{fname}", stdout)
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def test_build_method_fail(self):
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"""Test fetching using the build method when no file is produced"""
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fname, stdout = self.check_build_method(write_file=False)
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self.assertFalse(os.path.exists(fname))
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self.assertIn(f"File '{fname}' was not produced", stdout)
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def test_install(self):
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"""Test fetching using the install method"""
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btest = Bintool.create('_testing')
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btest.install = True
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col = terminal.Color()
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with unittest.mock.patch.object(tools, 'run', return_value=None):
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with test_util.capture_sys_output() as _:
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result = btest.fetch_tool(bintool.FETCH_BIN, col, False)
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self.assertEqual(bintool.FETCHED, result)
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def test_no_fetch(self):
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"""Test fetching when there is no method"""
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btest = Bintool.create('_testing')
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btest.disable = True
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col = terminal.Color()
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with test_util.capture_sys_output() as _:
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result = btest.fetch_tool(bintool.FETCH_BIN, col, False)
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self.assertEqual(bintool.FAIL, result)
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def test_all_bintools(self):
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"""Test that all bintools can handle all available fetch types"""
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def handle_download(_):
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"""Take the tools.download() function by writing a file"""
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tools.write_file(fname, expected)
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return fname, dirname
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def fake_run(*cmd):
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if cmd[0] == 'make':
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# See Bintool.build_from_git()
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tmpdir = cmd[2]
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self.fname = os.path.join(tmpdir, 'pathname')
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tools.write_file(self.fname, b'hello')
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expected = b'this is a test'
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dirname = os.path.join(self._indir, 'download_dir')
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os.mkdir(dirname)
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fname = os.path.join(dirname, 'downloaded')
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with unittest.mock.patch.object(tools, 'run', side_effect=fake_run):
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with unittest.mock.patch.object(tools, 'download',
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side_effect=handle_download):
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with test_util.capture_sys_output() as _:
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for name in Bintool.get_tool_list():
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btool = Bintool.create(name)
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for method in range(bintool.FETCH_COUNT):
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result = btool.fetch(method)
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self.assertTrue(result is not False)
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if result is not True and result is not None:
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result_fname, _ = result
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self.assertTrue(os.path.exists(result_fname))
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data = tools.read_file(result_fname)
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self.assertEqual(expected, data)
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os.remove(result_fname)
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def test_all_bintool_versions(self):
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"""Test handling of bintool version when it cannot be run"""
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all_tools = Bintool.get_tool_list()
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for name in all_tools:
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btool = Bintool.create(name)
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with unittest.mock.patch.object(
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btool, 'run_cmd_result', return_value=command.CommandResult()):
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self.assertEqual('unknown', btool.version())
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def test_force_missing(self):
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btool = Bintool.create('_testing')
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btool.present = True
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self.assertTrue(btool.is_present())
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btool.present = None
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Bintool.set_missing_list(['_testing'])
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self.assertFalse(btool.is_present())
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def test_failed_command(self):
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"""Check that running a command that does not exist returns None"""
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btool = Bintool.create('_testing')
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result = btool.run_cmd_result('fred')
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self.assertIsNone(result)
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if __name__ == "__main__":
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unittest.main()
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