623 lines
26 KiB
Python
623 lines
26 KiB
Python
# SPDX-License-Identifier: GPL-2.0+
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# Copyright (c) 2012 The Chromium OS Authors.
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#
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import os
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import shutil
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import sys
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import tempfile
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import time
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import unittest
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from buildman import board
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from buildman import bsettings
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from buildman import builder
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from buildman import control
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from buildman import toolchain
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from patman import commit
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from patman import command
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from patman import terminal
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from patman import test_util
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from patman import tools
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use_network = True
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settings_data = '''
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# Buildman settings file
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[toolchain]
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main: /usr/sbin
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[toolchain-alias]
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x86: i386 x86_64
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'''
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migration = '''===================== WARNING ======================
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This board does not use CONFIG_DM. CONFIG_DM will be
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compulsory starting with the v2020.01 release.
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Failure to update may result in board removal.
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See doc/driver-model/migration.rst for more info.
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====================================================
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'''
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errors = [
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'''main.c: In function 'main_loop':
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main.c:260:6: warning: unused variable 'joe' [-Wunused-variable]
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''',
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'''main.c: In function 'main_loop2':
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main.c:295:2: error: 'fred' undeclared (first use in this function)
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main.c:295:2: note: each undeclared identifier is reported only once for each function it appears in
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make[1]: *** [main.o] Error 1
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make: *** [common/libcommon.o] Error 2
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Make failed
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''',
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'''arch/arm/dts/socfpga_arria10_socdk_sdmmc.dtb: Warning \
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(avoid_unnecessary_addr_size): /clocks: unnecessary #address-cells/#size-cells \
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without "ranges" or child "reg" property
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''',
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'''powerpc-linux-ld: warning: dot moved backwards before `.bss'
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powerpc-linux-ld: warning: dot moved backwards before `.bss'
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powerpc-linux-ld: u-boot: section .text lma 0xfffc0000 overlaps previous sections
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powerpc-linux-ld: u-boot: section .rodata lma 0xfffef3ec overlaps previous sections
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powerpc-linux-ld: u-boot: section .reloc lma 0xffffa400 overlaps previous sections
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powerpc-linux-ld: u-boot: section .data lma 0xffffcd38 overlaps previous sections
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powerpc-linux-ld: u-boot: section .u_boot_cmd lma 0xffffeb40 overlaps previous sections
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powerpc-linux-ld: u-boot: section .bootpg lma 0xfffff198 overlaps previous sections
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''',
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'''In file included from %(basedir)sarch/sandbox/cpu/cpu.c:9:0:
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%(basedir)sarch/sandbox/include/asm/state.h:44:0: warning: "xxxx" redefined [enabled by default]
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%(basedir)sarch/sandbox/include/asm/state.h:43:0: note: this is the location of the previous definition
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%(basedir)sarch/sandbox/cpu/cpu.c: In function 'do_reset':
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%(basedir)sarch/sandbox/cpu/cpu.c:27:1: error: unknown type name 'blah'
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%(basedir)sarch/sandbox/cpu/cpu.c:28:12: error: expected declaration specifiers or '...' before numeric constant
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make[2]: *** [arch/sandbox/cpu/cpu.o] Error 1
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make[1]: *** [arch/sandbox/cpu] Error 2
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make[1]: *** Waiting for unfinished jobs....
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In file included from %(basedir)scommon/board_f.c:55:0:
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%(basedir)sarch/sandbox/include/asm/state.h:44:0: warning: "xxxx" redefined [enabled by default]
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%(basedir)sarch/sandbox/include/asm/state.h:43:0: note: this is the location of the previous definition
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make: *** [sub-make] Error 2
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'''
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]
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# hash, subject, return code, list of errors/warnings
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commits = [
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['1234', 'upstream/master, migration warning', 0, []],
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['5678', 'Second commit, a warning', 0, errors[0:1]],
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['9012', 'Third commit, error', 1, errors[0:2]],
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['3456', 'Fourth commit, warning', 0, [errors[0], errors[2]]],
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['7890', 'Fifth commit, link errors', 1, [errors[0], errors[3]]],
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['abcd', 'Sixth commit, fixes all errors', 0, []],
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['ef01', 'Seventh commit, fix migration, check directory suppression', 1,
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[errors[4]]],
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]
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boards = [
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['Active', 'arm', 'armv7', '', 'Tester', 'ARM Board 1', 'board0', ''],
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['Active', 'arm', 'armv7', '', 'Tester', 'ARM Board 2', 'board1', ''],
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['Active', 'powerpc', 'powerpc', '', 'Tester', 'PowerPC board 1', 'board2', ''],
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['Active', 'powerpc', 'mpc83xx', '', 'Tester', 'PowerPC board 2', 'board3', ''],
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['Active', 'sandbox', 'sandbox', '', 'Tester', 'Sandbox board', 'board4', ''],
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]
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BASE_DIR = 'base'
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OUTCOME_OK, OUTCOME_WARN, OUTCOME_ERR = range(3)
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class Options:
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"""Class that holds build options"""
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pass
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class TestBuild(unittest.TestCase):
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"""Test buildman
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TODO: Write tests for the rest of the functionality
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"""
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def setUp(self):
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# Set up commits to build
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self.commits = []
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sequence = 0
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for commit_info in commits:
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comm = commit.Commit(commit_info[0])
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comm.subject = commit_info[1]
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comm.return_code = commit_info[2]
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comm.error_list = commit_info[3]
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if sequence < 6:
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comm.error_list += [migration]
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comm.sequence = sequence
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sequence += 1
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self.commits.append(comm)
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# Set up boards to build
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self.boards = board.Boards()
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for brd in boards:
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self.boards.AddBoard(board.Board(*brd))
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self.boards.SelectBoards([])
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# Add some test settings
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bsettings.Setup(None)
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bsettings.AddFile(settings_data)
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# Set up the toolchains
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self.toolchains = toolchain.Toolchains()
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self.toolchains.Add('arm-linux-gcc', test=False)
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self.toolchains.Add('sparc-linux-gcc', test=False)
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self.toolchains.Add('powerpc-linux-gcc', test=False)
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self.toolchains.Add('gcc', test=False)
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# Avoid sending any output
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terminal.SetPrintTestMode()
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self._col = terminal.Color()
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self.base_dir = tempfile.mkdtemp()
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if not os.path.isdir(self.base_dir):
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os.mkdir(self.base_dir)
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def tearDown(self):
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shutil.rmtree(self.base_dir)
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def Make(self, commit, brd, stage, *args, **kwargs):
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result = command.CommandResult()
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boardnum = int(brd.target[-1])
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result.return_code = 0
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result.stderr = ''
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result.stdout = ('This is the test output for board %s, commit %s' %
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(brd.target, commit.hash))
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if ((boardnum >= 1 and boardnum >= commit.sequence) or
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boardnum == 4 and commit.sequence == 6):
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result.return_code = commit.return_code
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result.stderr = (''.join(commit.error_list)
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% {'basedir' : self.base_dir + '/.bm-work/00/'})
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elif commit.sequence < 6:
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result.stderr = migration
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result.combined = result.stdout + result.stderr
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return result
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def assertSummary(self, text, arch, plus, boards, outcome=OUTCOME_ERR):
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col = self._col
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expected_colour = (col.GREEN if outcome == OUTCOME_OK else
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col.YELLOW if outcome == OUTCOME_WARN else col.RED)
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expect = '%10s: ' % arch
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# TODO(sjg@chromium.org): If plus is '', we shouldn't need this
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expect += ' ' + col.Color(expected_colour, plus)
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expect += ' '
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for board in boards:
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expect += col.Color(expected_colour, ' %s' % board)
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self.assertEqual(text, expect)
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def _SetupTest(self, echo_lines=False, **kwdisplay_args):
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"""Set up the test by running a build and summary
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Args:
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echo_lines: True to echo lines to the terminal to aid test
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development
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kwdisplay_args: Dict of arguemnts to pass to
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Builder.SetDisplayOptions()
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Returns:
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Iterator containing the output lines, each a PrintLine() object
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"""
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build = builder.Builder(self.toolchains, self.base_dir, None, 1, 2,
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checkout=False, show_unknown=False)
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build.do_make = self.Make
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board_selected = self.boards.GetSelectedDict()
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# Build the boards for the pre-defined commits and warnings/errors
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# associated with each. This calls our Make() to inject the fake output.
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build.BuildBoards(self.commits, board_selected, keep_outputs=False,
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verbose=False)
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lines = terminal.GetPrintTestLines()
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count = 0
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for line in lines:
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if line.text.strip():
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count += 1
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# We should get two starting messages, an update for every commit built
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# and a summary message
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self.assertEqual(count, len(commits) * len(boards) + 3)
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build.SetDisplayOptions(**kwdisplay_args);
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build.ShowSummary(self.commits, board_selected)
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if echo_lines:
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terminal.EchoPrintTestLines()
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return iter(terminal.GetPrintTestLines())
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def _CheckOutput(self, lines, list_error_boards=False,
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filter_dtb_warnings=False,
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filter_migration_warnings=False):
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"""Check for expected output from the build summary
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Args:
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lines: Iterator containing the lines returned from the summary
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list_error_boards: Adjust the check for output produced with the
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--list-error-boards flag
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filter_dtb_warnings: Adjust the check for output produced with the
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--filter-dtb-warnings flag
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"""
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def add_line_prefix(prefix, boards, error_str, colour):
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"""Add a prefix to each line of a string
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The training \n in error_str is removed before processing
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Args:
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prefix: String prefix to add
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error_str: Error string containing the lines
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colour: Expected colour for the line. Note that the board list,
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if present, always appears in magenta
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Returns:
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New string where each line has the prefix added
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"""
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lines = error_str.strip().splitlines()
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new_lines = []
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for line in lines:
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if boards:
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expect = self._col.Color(colour, prefix + '(')
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expect += self._col.Color(self._col.MAGENTA, boards,
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bright=False)
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expect += self._col.Color(colour, ') %s' % line)
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else:
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expect = self._col.Color(colour, prefix + line)
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new_lines.append(expect)
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return '\n'.join(new_lines)
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col = terminal.Color()
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boards01234 = ('board0 board1 board2 board3 board4'
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if list_error_boards else '')
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boards1234 = 'board1 board2 board3 board4' if list_error_boards else ''
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boards234 = 'board2 board3 board4' if list_error_boards else ''
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boards34 = 'board3 board4' if list_error_boards else ''
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boards4 = 'board4' if list_error_boards else ''
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# Upstream commit: migration warnings only
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self.assertEqual(next(lines).text, '01: %s' % commits[0][1])
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if not filter_migration_warnings:
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self.assertSummary(next(lines).text, 'arm', 'w+',
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['board0', 'board1'], outcome=OUTCOME_WARN)
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self.assertSummary(next(lines).text, 'powerpc', 'w+',
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['board2', 'board3'], outcome=OUTCOME_WARN)
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self.assertSummary(next(lines).text, 'sandbox', 'w+', ['board4'],
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outcome=OUTCOME_WARN)
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self.assertEqual(next(lines).text,
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add_line_prefix('+', boards01234, migration, col.RED))
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# Second commit: all archs should fail with warnings
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self.assertEqual(next(lines).text, '02: %s' % commits[1][1])
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if filter_migration_warnings:
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self.assertSummary(next(lines).text, 'arm', 'w+',
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['board1'], outcome=OUTCOME_WARN)
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self.assertSummary(next(lines).text, 'powerpc', 'w+',
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['board2', 'board3'], outcome=OUTCOME_WARN)
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self.assertSummary(next(lines).text, 'sandbox', 'w+', ['board4'],
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outcome=OUTCOME_WARN)
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# Second commit: The warnings should be listed
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self.assertEqual(next(lines).text,
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add_line_prefix('w+', boards1234, errors[0], col.YELLOW))
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# Third commit: Still fails
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self.assertEqual(next(lines).text, '03: %s' % commits[2][1])
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if filter_migration_warnings:
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self.assertSummary(next(lines).text, 'arm', '',
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['board1'], outcome=OUTCOME_OK)
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self.assertSummary(next(lines).text, 'powerpc', '+',
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['board2', 'board3'])
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self.assertSummary(next(lines).text, 'sandbox', '+', ['board4'])
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# Expect a compiler error
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self.assertEqual(next(lines).text,
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add_line_prefix('+', boards234, errors[1], col.RED))
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# Fourth commit: Compile errors are fixed, just have warning for board3
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self.assertEqual(next(lines).text, '04: %s' % commits[3][1])
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if filter_migration_warnings:
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expect = '%10s: ' % 'powerpc'
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expect += ' ' + col.Color(col.GREEN, '')
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expect += ' '
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expect += col.Color(col.GREEN, ' %s' % 'board2')
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expect += ' ' + col.Color(col.YELLOW, 'w+')
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expect += ' '
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expect += col.Color(col.YELLOW, ' %s' % 'board3')
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self.assertEqual(next(lines).text, expect)
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else:
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self.assertSummary(next(lines).text, 'powerpc', 'w+',
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['board2', 'board3'], outcome=OUTCOME_WARN)
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self.assertSummary(next(lines).text, 'sandbox', 'w+', ['board4'],
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outcome=OUTCOME_WARN)
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# Compile error fixed
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self.assertEqual(next(lines).text,
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add_line_prefix('-', boards234, errors[1], col.GREEN))
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if not filter_dtb_warnings:
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self.assertEqual(
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next(lines).text,
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add_line_prefix('w+', boards34, errors[2], col.YELLOW))
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# Fifth commit
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self.assertEqual(next(lines).text, '05: %s' % commits[4][1])
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if filter_migration_warnings:
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self.assertSummary(next(lines).text, 'powerpc', '', ['board3'],
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outcome=OUTCOME_OK)
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self.assertSummary(next(lines).text, 'sandbox', '+', ['board4'])
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# The second line of errors[3] is a duplicate, so buildman will drop it
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expect = errors[3].rstrip().split('\n')
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expect = [expect[0]] + expect[2:]
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expect = '\n'.join(expect)
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self.assertEqual(next(lines).text,
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add_line_prefix('+', boards4, expect, col.RED))
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if not filter_dtb_warnings:
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self.assertEqual(
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next(lines).text,
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add_line_prefix('w-', boards34, errors[2], col.CYAN))
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# Sixth commit
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self.assertEqual(next(lines).text, '06: %s' % commits[5][1])
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if filter_migration_warnings:
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self.assertSummary(next(lines).text, 'sandbox', '', ['board4'],
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outcome=OUTCOME_OK)
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else:
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self.assertSummary(next(lines).text, 'sandbox', 'w+', ['board4'],
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outcome=OUTCOME_WARN)
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# The second line of errors[3] is a duplicate, so buildman will drop it
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expect = errors[3].rstrip().split('\n')
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expect = [expect[0]] + expect[2:]
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expect = '\n'.join(expect)
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self.assertEqual(next(lines).text,
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add_line_prefix('-', boards4, expect, col.GREEN))
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self.assertEqual(next(lines).text,
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add_line_prefix('w-', boards4, errors[0], col.CYAN))
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# Seventh commit
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self.assertEqual(next(lines).text, '07: %s' % commits[6][1])
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if filter_migration_warnings:
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self.assertSummary(next(lines).text, 'sandbox', '+', ['board4'])
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else:
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self.assertSummary(next(lines).text, 'arm', '', ['board0', 'board1'],
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outcome=OUTCOME_OK)
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self.assertSummary(next(lines).text, 'powerpc', '',
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['board2', 'board3'], outcome=OUTCOME_OK)
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self.assertSummary(next(lines).text, 'sandbox', '+', ['board4'])
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# Pick out the correct error lines
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expect_str = errors[4].rstrip().replace('%(basedir)s', '').split('\n')
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expect = expect_str[3:8] + [expect_str[-1]]
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expect = '\n'.join(expect)
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if not filter_migration_warnings:
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self.assertEqual(
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next(lines).text,
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add_line_prefix('-', boards01234, migration, col.GREEN))
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self.assertEqual(next(lines).text,
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add_line_prefix('+', boards4, expect, col.RED))
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# Now the warnings lines
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expect = [expect_str[0]] + expect_str[10:12] + [expect_str[9]]
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expect = '\n'.join(expect)
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self.assertEqual(next(lines).text,
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add_line_prefix('w+', boards4, expect, col.YELLOW))
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def testOutput(self):
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"""Test basic builder operation and output
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This does a line-by-line verification of the summary output.
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"""
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lines = self._SetupTest(show_errors=True)
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self._CheckOutput(lines, list_error_boards=False,
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filter_dtb_warnings=False)
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def testErrorBoards(self):
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"""Test output with --list-error-boards
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This does a line-by-line verification of the summary output.
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"""
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lines = self._SetupTest(show_errors=True, list_error_boards=True)
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self._CheckOutput(lines, list_error_boards=True)
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def testFilterDtb(self):
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"""Test output with --filter-dtb-warnings
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This does a line-by-line verification of the summary output.
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"""
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lines = self._SetupTest(show_errors=True, filter_dtb_warnings=True)
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self._CheckOutput(lines, filter_dtb_warnings=True)
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def testFilterMigration(self):
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"""Test output with --filter-migration-warnings
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This does a line-by-line verification of the summary output.
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"""
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lines = self._SetupTest(show_errors=True,
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filter_migration_warnings=True)
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self._CheckOutput(lines, filter_migration_warnings=True)
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def _testGit(self):
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"""Test basic builder operation by building a branch"""
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options = Options()
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options.git = os.getcwd()
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options.summary = False
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options.jobs = None
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options.dry_run = False
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#options.git = os.path.join(self.base_dir, 'repo')
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options.branch = 'test-buildman'
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options.force_build = False
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options.list_tool_chains = False
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options.count = -1
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options.git_dir = None
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options.threads = None
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options.show_unknown = False
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options.quick = False
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options.show_errors = False
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options.keep_outputs = False
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args = ['tegra20']
|
|
control.DoBuildman(options, args)
|
|
|
|
def testBoardSingle(self):
|
|
"""Test single board selection"""
|
|
self.assertEqual(self.boards.SelectBoards(['sandbox']),
|
|
({'all': ['board4'], 'sandbox': ['board4']}, []))
|
|
|
|
def testBoardArch(self):
|
|
"""Test single board selection"""
|
|
self.assertEqual(self.boards.SelectBoards(['arm']),
|
|
({'all': ['board0', 'board1'],
|
|
'arm': ['board0', 'board1']}, []))
|
|
|
|
def testBoardArchSingle(self):
|
|
"""Test single board selection"""
|
|
self.assertEqual(self.boards.SelectBoards(['arm sandbox']),
|
|
({'sandbox': ['board4'],
|
|
'all': ['board0', 'board1', 'board4'],
|
|
'arm': ['board0', 'board1']}, []))
|
|
|
|
|
|
def testBoardArchSingleMultiWord(self):
|
|
"""Test single board selection"""
|
|
self.assertEqual(self.boards.SelectBoards(['arm', 'sandbox']),
|
|
({'sandbox': ['board4'],
|
|
'all': ['board0', 'board1', 'board4'],
|
|
'arm': ['board0', 'board1']}, []))
|
|
|
|
def testBoardSingleAnd(self):
|
|
"""Test single board selection"""
|
|
self.assertEqual(self.boards.SelectBoards(['Tester & arm']),
|
|
({'Tester&arm': ['board0', 'board1'],
|
|
'all': ['board0', 'board1']}, []))
|
|
|
|
def testBoardTwoAnd(self):
|
|
"""Test single board selection"""
|
|
self.assertEqual(self.boards.SelectBoards(['Tester', '&', 'arm',
|
|
'Tester' '&', 'powerpc',
|
|
'sandbox']),
|
|
({'sandbox': ['board4'],
|
|
'all': ['board0', 'board1', 'board2', 'board3',
|
|
'board4'],
|
|
'Tester&powerpc': ['board2', 'board3'],
|
|
'Tester&arm': ['board0', 'board1']}, []))
|
|
|
|
def testBoardAll(self):
|
|
"""Test single board selection"""
|
|
self.assertEqual(self.boards.SelectBoards([]),
|
|
({'all': ['board0', 'board1', 'board2', 'board3',
|
|
'board4']}, []))
|
|
|
|
def testBoardRegularExpression(self):
|
|
"""Test single board selection"""
|
|
self.assertEqual(self.boards.SelectBoards(['T.*r&^Po']),
|
|
({'all': ['board2', 'board3'],
|
|
'T.*r&^Po': ['board2', 'board3']}, []))
|
|
|
|
def testBoardDuplicate(self):
|
|
"""Test single board selection"""
|
|
self.assertEqual(self.boards.SelectBoards(['sandbox sandbox',
|
|
'sandbox']),
|
|
({'all': ['board4'], 'sandbox': ['board4']}, []))
|
|
def CheckDirs(self, build, dirname):
|
|
self.assertEqual('base%s' % dirname, build._GetOutputDir(1))
|
|
self.assertEqual('base%s/fred' % dirname,
|
|
build.GetBuildDir(1, 'fred'))
|
|
self.assertEqual('base%s/fred/done' % dirname,
|
|
build.GetDoneFile(1, 'fred'))
|
|
self.assertEqual('base%s/fred/u-boot.sizes' % dirname,
|
|
build.GetFuncSizesFile(1, 'fred', 'u-boot'))
|
|
self.assertEqual('base%s/fred/u-boot.objdump' % dirname,
|
|
build.GetObjdumpFile(1, 'fred', 'u-boot'))
|
|
self.assertEqual('base%s/fred/err' % dirname,
|
|
build.GetErrFile(1, 'fred'))
|
|
|
|
def testOutputDir(self):
|
|
build = builder.Builder(self.toolchains, BASE_DIR, None, 1, 2,
|
|
checkout=False, show_unknown=False)
|
|
build.commits = self.commits
|
|
build.commit_count = len(self.commits)
|
|
subject = self.commits[1].subject.translate(builder.trans_valid_chars)
|
|
dirname ='/%02d_g%s_%s' % (2, commits[1][0], subject[:20])
|
|
self.CheckDirs(build, dirname)
|
|
|
|
def testOutputDirCurrent(self):
|
|
build = builder.Builder(self.toolchains, BASE_DIR, None, 1, 2,
|
|
checkout=False, show_unknown=False)
|
|
build.commits = None
|
|
build.commit_count = 0
|
|
self.CheckDirs(build, '/current')
|
|
|
|
def testOutputDirNoSubdirs(self):
|
|
build = builder.Builder(self.toolchains, BASE_DIR, None, 1, 2,
|
|
checkout=False, show_unknown=False,
|
|
no_subdirs=True)
|
|
build.commits = None
|
|
build.commit_count = 0
|
|
self.CheckDirs(build, '')
|
|
|
|
def testToolchainAliases(self):
|
|
self.assertTrue(self.toolchains.Select('arm') != None)
|
|
with self.assertRaises(ValueError):
|
|
self.toolchains.Select('no-arch')
|
|
with self.assertRaises(ValueError):
|
|
self.toolchains.Select('x86')
|
|
|
|
self.toolchains = toolchain.Toolchains()
|
|
self.toolchains.Add('x86_64-linux-gcc', test=False)
|
|
self.assertTrue(self.toolchains.Select('x86') != None)
|
|
|
|
self.toolchains = toolchain.Toolchains()
|
|
self.toolchains.Add('i386-linux-gcc', test=False)
|
|
self.assertTrue(self.toolchains.Select('x86') != None)
|
|
|
|
def testToolchainDownload(self):
|
|
"""Test that we can download toolchains"""
|
|
if use_network:
|
|
with test_util.capture_sys_output() as (stdout, stderr):
|
|
url = self.toolchains.LocateArchUrl('arm')
|
|
self.assertRegexpMatches(url, 'https://www.kernel.org/pub/tools/'
|
|
'crosstool/files/bin/x86_64/.*/'
|
|
'x86_64-gcc-.*-nolibc[-_]arm-.*linux-gnueabi.tar.xz')
|
|
|
|
def testGetEnvArgs(self):
|
|
"""Test the GetEnvArgs() function"""
|
|
tc = self.toolchains.Select('arm')
|
|
self.assertEqual('arm-linux-',
|
|
tc.GetEnvArgs(toolchain.VAR_CROSS_COMPILE))
|
|
self.assertEqual('', tc.GetEnvArgs(toolchain.VAR_PATH))
|
|
self.assertEqual('arm',
|
|
tc.GetEnvArgs(toolchain.VAR_ARCH))
|
|
self.assertEqual('', tc.GetEnvArgs(toolchain.VAR_MAKE_ARGS))
|
|
|
|
self.toolchains.Add('/path/to/x86_64-linux-gcc', test=False)
|
|
tc = self.toolchains.Select('x86')
|
|
self.assertEqual('/path/to',
|
|
tc.GetEnvArgs(toolchain.VAR_PATH))
|
|
tc.override_toolchain = 'clang'
|
|
self.assertEqual('HOSTCC=clang CC=clang',
|
|
tc.GetEnvArgs(toolchain.VAR_MAKE_ARGS))
|
|
|
|
def testPrepareOutputSpace(self):
|
|
def _Touch(fname):
|
|
tools.WriteFile(os.path.join(base_dir, fname), b'')
|
|
|
|
base_dir = tempfile.mkdtemp()
|
|
|
|
# Add various files that we want removed and left alone
|
|
to_remove = ['01_g0982734987_title', '102_g92bf_title',
|
|
'01_g2938abd8_title']
|
|
to_leave = ['something_else', '01-something.patch', '01_another']
|
|
for name in to_remove + to_leave:
|
|
_Touch(name)
|
|
|
|
build = builder.Builder(self.toolchains, base_dir, None, 1, 2)
|
|
build.commits = self.commits
|
|
build.commit_count = len(commits)
|
|
result = set(build._GetOutputSpaceRemovals())
|
|
expected = set([os.path.join(base_dir, f) for f in to_remove])
|
|
self.assertEqual(expected, result)
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|