From patchwork Wed Dec 18 11:09:27 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Thomas Huth X-Patchwork-Id: 13913514 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 010E1E77188 for ; Wed, 18 Dec 2024 11:15:22 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tNrwi-0006Sg-Ir; Wed, 18 Dec 2024 06:10:28 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tNrwf-0006SW-Kh for qemu-devel@nongnu.org; Wed, 18 Dec 2024 06:10:26 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tNrwd-00053Q-Ri for qemu-devel@nongnu.org; Wed, 18 Dec 2024 06:10:25 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1734520221; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=54Sxn9ovfDx7Dc90LI1noSDad7pCE8hZjpZ3/maPDHU=; b=cuLLG8WiarOqCRcuYJEDyC8XfGJIdVuyQtyyo10V73kG6/cOiE+pFK7PayqhrWFhtcS0Tr uzuDdMW1cdPQOLSgpbI2i5j1kqKG+nWy6jkN1nlpuMvHyS6U9Qn4h7X/cS4iOKhTrdW4y8 baXa0kyJNN94lWPzx4B8K/NIB+Ql0ko= Received: from mx-prod-mc-01.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-637-TXaORHRkMKClneKa5zvHPA-1; Wed, 18 Dec 2024 06:10:20 -0500 X-MC-Unique: TXaORHRkMKClneKa5zvHPA-1 X-Mimecast-MFC-AGG-ID: TXaORHRkMKClneKa5zvHPA Received: from mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.40]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id C84881956089 for ; Wed, 18 Dec 2024 11:10:19 +0000 (UTC) Received: from thuth-p1g4.redhat.com (unknown [10.39.192.114]) by mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id B337B19560AD; Wed, 18 Dec 2024 11:10:17 +0000 (UTC) From: Thomas Huth To: qemu-devel@nongnu.org Cc: Stefan Hajnoczi Subject: [PULL 07/38] tests/functional: introduce some helpful decorators Date: Wed, 18 Dec 2024 12:09:27 +0100 Message-ID: <20241218110958.226932-8-thuth@redhat.com> In-Reply-To: <20241218110958.226932-1-thuth@redhat.com> References: <20241218110958.226932-1-thuth@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.40 Received-SPF: pass client-ip=170.10.129.124; envelope-from=thuth@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -31 X-Spam_score: -3.2 X-Spam_bar: --- X-Spam_report: (-3.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-1.116, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Daniel P. Berrangé Reduce repeated boilerplate with some helper decorators: @skipIfNotPlatform("x86_64", "aarch64") => Skip unless the build host platform matches @skipIfMissingCommands("mkisofs", "losetup") => Skips unless all listed commands are found in $PATH @skipIfMissingImports("numpy", "cv2") => Skips unless all listed modules can be imported @skipFlakyTest("https://gitlab.com/qemu-project/qemu/-/issues/NNN") => Skips unless env var requests flaky tests with the reason documented in the referenced gitlab bug @skipBigData => Skips unless env var permits tests creating big data files @skipUntrustedTest => Skips unless env var permits tests which are potentially dangerous to the host Reviewed-by: Thomas Huth Signed-off-by: Daniel P. Berrangé Message-ID: <20241217155953.3950506-8-berrange@redhat.com> Signed-off-by: Thomas Huth --- tests/functional/qemu_test/__init__.py | 3 + tests/functional/qemu_test/decorators.py | 107 +++++++++++++++++++++++ 2 files changed, 110 insertions(+) create mode 100644 tests/functional/qemu_test/decorators.py diff --git a/tests/functional/qemu_test/__init__.py b/tests/functional/qemu_test/__init__.py index 8fddddbe67..7dee3522f2 100644 --- a/tests/functional/qemu_test/__init__.py +++ b/tests/functional/qemu_test/__init__.py @@ -13,3 +13,6 @@ exec_command, exec_command_and_wait_for_pattern, get_qemu_img, which from .testcase import QemuBaseTest, QemuUserTest, QemuSystemTest from .linuxkernel import LinuxKernelTest +from .decorators import skipIfMissingCommands, skipIfNotMachine, \ + skipFlakyTest, skipUntrustedTest, skipBigDataTest, \ + skipIfMissingImports diff --git a/tests/functional/qemu_test/decorators.py b/tests/functional/qemu_test/decorators.py new file mode 100644 index 0000000000..df088bc090 --- /dev/null +++ b/tests/functional/qemu_test/decorators.py @@ -0,0 +1,107 @@ +# SPDX-License-Identifier: GPL-2.0-or-later +# +# Decorators useful in functional tests + +import os +import platform +from unittest import skipUnless + +from .cmd import which + +''' +Decorator to skip execution of a test if the list +of command binaries is not available in $PATH. +Example: + + @skipIfMissingCommands("mkisofs", "losetup") +''' +def skipIfMissingCommands(*args): + def has_cmds(cmdlist): + for cmd in cmdlist: + if not which(cmd): + return False + return True + + return skipUnless(lambda: has_cmds(args), + 'required command(s) "%s" not installed' % + ", ".join(args)) + +''' +Decorator to skip execution of a test if the current +host machine does not match one of the permitted +machines. +Example + + @skipIfNotMachine("x86_64", "aarch64") +''' +def skipIfNotMachine(*args): + return skipUnless(lambda: platform.machine() in args, + 'not running on one of the required machine(s) "%s"' % + ", ".join(args)) + +''' +Decorator to skip execution of flaky tests, unless +the $QEMU_TEST_FLAKY_TESTS environment variable is set. +A bug URL must be provided that documents the observed +failure behaviour, so it can be tracked & re-evaluated +in future. + +Historical tests may be providing "None" as the bug_url +but this should not be done for new test. + +Example: + + @skipFlakyTest("https://gitlab.com/qemu-project/qemu/-/issues/NNN") +''' +def skipFlakyTest(bug_url): + if bug_url is None: + bug_url = "FIXME: reproduce flaky test and file bug report or remove" + return skipUnless(os.getenv('QEMU_TEST_FLAKY_TESTS'), + f'Test is unstable: {bug_url}') + +''' +Decorator to skip execution of tests which are likely +to execute untrusted commands on the host, or commands +which process untrusted code, unless the +$QEMU_TEST_ALLOW_UNTRUSTED_CODE env var is set. +Example: + + @skipUntrustedTest() +''' +def skipUntrustedTest(): + return skipUnless(os.getenv('QEMU_TEST_ALLOW_UNTRUSTED_CODE'), + 'Test runs untrusted code / processes untrusted data') + +''' +Decorator to skip execution of tests which need large +data storage (over around 500MB-1GB mark) on the host, +unless the $QEMU_TEST_ALLOW_LARGE_STORAGE environment +variable is set + +Example: + + @skipBigDataTest() +''' +def skipBigDataTest(): + return skipUnless(os.getenv('QEMU_TEST_ALLOW_LARGE_STORAGE'), + 'Test requires large host storage space') + +''' +Decorator to skip execution of a test if the list +of python imports is not available. +Example: + + @skipIfMissingImports("numpy", "cv2") +''' +def skipIfMissingImports(*args): + def has_imports(importlist): + for impname in importlist: + try: + import impname + except ImportError: + return False + return True + + return skipUnless(lambda: has_imports(args), + 'required import(s) "%s" not installed' % + ", ".join(args))