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c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1732901502; 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=41MScyuoH6TE7bbmCTMEw2wCRLMzaMVg00srWkvrbS0=; b=cBftoLBxxJCjtEO2Id9pmQvkiouNuJatnIIVIV2PQTioydM2vPPLGPV8y3JuzV5WzCm3Xv PfY03W2RzTUtoUAG2jVZSWCumQi36prRQkFm90tx1tZgjhbmlRJwAd140cLaGxYCrUqCLh JeSu1xNj5KiKMMZEHyhDpns8aV8P17Q= X-MC-Unique: 79IKLt3LNnOVWUWdANY1sA-1 X-Mimecast-MFC-AGG-ID: 79IKLt3LNnOVWUWdANY1sA From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Cc: Thomas Huth , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , =?UTF-8?q?Alex=20Benn=C3=A9e?= , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= Subject: [PATCH 06/22] tests/functional: introduce some helpful decorators Date: Fri, 29 Nov 2024 17:31:04 +0000 Message-ID: <20241129173120.761728-7-berrange@redhat.com> In-Reply-To: <20241129173120.761728-1-berrange@redhat.com> References: <20241129173120.761728-1-berrange@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.0 on 10.30.177.17 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -29 X-Spam_score: -3.0 X-Spam_bar: --- X-Spam_report: (-3.0 / 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=-0.93, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1732901744549019100 Reduce repeated boilerplate with some helper decorators: @skipIfNotPlatform("x86_64", "aarch64") =3D> Skip unless the build host platform matches @skipIfMissingCommands("mkisofs", "losetup") =3D> Skips unless all listed commands are found in $PATH @skipIfMissingImports("numpy", "cv2") =3D> Skips unless all listed modules can be imported @skipFlakyTest("https://gitlab.com/qemu-project/qemu/-/issues/NNN") =3D> Skips unless env var requests flaky tests with the reason documented in the referenced gitlab bug @skipBigData =3D> Skips unless env var permits tests creating big data files @skipUntrustedTest =3D> Skips unless env var permits tests which are potentially dangerous to the host Signed-off-by: Daniel P. Berrang=C3=A9 --- tests/functional/qemu_test/__init__.py | 3 + tests/functional/qemu_test/decorators.py | 105 +++++++++++++++++++++++ 2 files changed, 108 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/qe= mu_test/decorators.py new file mode 100644 index 0000000000..d25fec7b2d --- /dev/null +++ b/tests/functional/qemu_test/decorators.py @@ -0,0 +1,105 @@ +# 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 commands(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 required machine(s) "%s"' % + ", ".join(args)) + +''' +Decorator to skip execution of flaky tests, unless +the $QEMU_TEST_FLAKY_TESTS env var is set. A bug URL +must be provided that documents the observed failure +behaviour, so it can be tracked & re-evaluated in future. + +Historical tests may be providing "None" as the bug_url +but this should not be done for new test. + +Example: + + @skipFlakyTest("https://gitlab.com/qemu-project/qemu/-/issues/NNN") +''' +def skipFlakyTest(bug_url): + if bug_url is None: + bug_url =3D "FIXME: reproduce flaky test and file bug report or re= move" + return skipUnless(os.getenv('QEMU_TEST_FLAKY_TESTS'), + f'Test is unstable: {bug_url}') + +''' +Decorator to skip execution of tests which are likely +to execute untrusted commands on the host, or commands +which process untrusted code, unles the +$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 on the host, unless the +$QEMU_TEST_ALLOW_LARGE_STORAGE env var is set + +Example: + + @skipBigDataTest() +''' +def skipBigDataTest(): + return skipUnless(os.getenv('QEMU_TEST_ALLOW_LARGE_STORAGE'), + 'Test required 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 imports(s) "%s" not installed' % + ", ".join(args)) --=20 2.46.0