From patchwork Tue Jul 9 06:30:09 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Brendan Higgins X-Patchwork-Id: 11036215 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 896BF17EF for ; Tue, 9 Jul 2019 06:33:16 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 77888286EE for ; Tue, 9 Jul 2019 06:33:16 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6B27328740; Tue, 9 Jul 2019 06:33:16 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.7 required=2.0 tests=BAYES_00,DKIM_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 Received: from ml01.01.org (ml01.01.org [198.145.21.10]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id BB79C28738 for ; Tue, 9 Jul 2019 06:33:15 +0000 (UTC) Received: from [127.0.0.1] (localhost [IPv6:::1]) by ml01.01.org (Postfix) with ESMTP id 803AD212AD5A4; Mon, 8 Jul 2019 23:33:15 -0700 (PDT) X-Original-To: linux-nvdimm@lists.01.org Delivered-To: linux-nvdimm@lists.01.org Received-SPF: Pass (sender SPF authorized) identity=mailfrom; client-ip=2607:f8b0:4864:20::449; helo=mail-pf1-x449.google.com; envelope-from=3kdukxq4kdbmuax6wt601zz16bz77z4x.v75416dg-6ew15541bcb.jk.7az@flex--brendanhiggins.bounces.google.com; receiver=linux-nvdimm@lists.01.org Received: from mail-pf1-x449.google.com (mail-pf1-x449.google.com [IPv6:2607:f8b0:4864:20::449]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id E9AFC212AD599 for ; Mon, 8 Jul 2019 23:33:13 -0700 (PDT) Received: by mail-pf1-x449.google.com with SMTP id g21so11835211pfb.13 for ; Mon, 08 Jul 2019 23:33:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=pTGx5akQJDhaSZySqpQ1nhnlCVlScw5xa33k0FhGOt8=; b=W+oGZyv5aScy2CBcnEzn6S04I3gUtxuDGZg0KSXfBXLe35qVIa5cxY6F52ipfQouVg HPapk2c2qMgi27eUB/qRkmd2nJPyzqjqe0FtNrcCqe5BejrOFnuK8EBPM6ShuVF/Ltih Ce/vFqrBPp0u7Hb64w2TgLOSJQaYOj0EbDzunYqT5JDcXrgznfmtHM/cb1hBDkMAHBaa hqH3sCQm6XHRY9d2/Y7SuNA1lugxYcaM2wZ741iCBYDr4H1ZhiL5oRq3+KR84IfPasV4 iuuZfmNxISVooCs8fABNYHvIDFjgdI9kRFZ+8Se/jrPai/KJWOopGGQLtE1b/KWlCMg9 4yyA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=pTGx5akQJDhaSZySqpQ1nhnlCVlScw5xa33k0FhGOt8=; b=XUYHbkDp0Nfn1ty/DgkFDEXJkZhKSPY8t4ciCqz/WZCe7UYm9EUKZhbo+Ldxq4hPW+ yozhbMAkja81rM9yT3X0/jB/ZNhcvnxvPfapv5zq1ezIBGLQnXQ86S9tyicKEnqsUkpJ c1ryx4KOq2wnjbA/C8Imuu4RFYuI/owRVPWFNoZBLjGFdPLhvCktv4R8gSfnsNlKwQbb vZCj7msJ5mlhmpArcGGUcINsRHx25MK+3jK636u607nGJQqOC26MGfYSUlNyJ7oGIVkk /KCkcHG8u4k9pfNHDjUU/36vkAtI6QMe+/9SLfDJIAcb8RPp6wlxI1rnK/0lDmW7X2k5 oWqA== X-Gm-Message-State: APjAAAUhSlWx2ZjsN/58Vv3iBYmZl0tFOgH2VZi+PhZo5dWyucCTdB9i o7autbQEFYpJMg6kPR27NG85r+0qLgNWWdLirthCjg== X-Google-Smtp-Source: APXvYqztBMYU8cpQu5gE7Alj1R+Bz6LvehVrMmdcXl5vfv3XcCYLMuL6/Lw+gxkmxfFLL/6nCEWxPSClnXIvgIyCKHv2Hw== X-Received: by 2002:a63:18d:: with SMTP id 135mr28643655pgb.62.1562653992963; Mon, 08 Jul 2019 23:33:12 -0700 (PDT) Date: Mon, 8 Jul 2019 23:30:09 -0700 In-Reply-To: <20190709063023.251446-1-brendanhiggins@google.com> Message-Id: <20190709063023.251446-5-brendanhiggins@google.com> Mime-Version: 1.0 References: <20190709063023.251446-1-brendanhiggins@google.com> X-Mailer: git-send-email 2.22.0.410.gd8fdbe21b5-goog Subject: [PATCH v7 04/18] kunit: test: add kunit_stream a std::stream like logger From: Brendan Higgins To: frowand.list@gmail.com, gregkh@linuxfoundation.org, jpoimboe@redhat.com, keescook@google.com, kieran.bingham@ideasonboard.com, mcgrof@kernel.org, peterz@infradead.org, robh@kernel.org, sboyd@kernel.org, shuah@kernel.org, tytso@mit.edu, yamada.masahiro@socionext.com X-BeenThere: linux-nvdimm@lists.01.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Linux-nvdimm developer list." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: pmladek@suse.com, linux-doc@vger.kernel.org, amir73il@gmail.com, Brendan Higgins , dri-devel@lists.freedesktop.org, Alexander.Levin@microsoft.com, linux-kselftest@vger.kernel.org, linux-nvdimm@lists.01.org, khilman@baylibre.com, knut.omang@oracle.com, wfg@linux.intel.com, joel@jms.id.au, rientjes@google.com, jdike@addtoit.com, dan.carpenter@oracle.com, devicetree@vger.kernel.org, linux-kbuild@vger.kernel.org, Tim.Bird@sony.com, linux-um@lists.infradead.org, rostedt@goodmis.org, julia.lawall@lip6.fr, kunit-dev@googlegroups.com, richard@nod.at, rdunlap@infradead.org, linux-kernel@vger.kernel.org, daniel@ffwll.ch, mpe@ellerman.id.au, linux-fsdevel@vger.kernel.org Errors-To: linux-nvdimm-bounces@lists.01.org Sender: "Linux-nvdimm" X-Virus-Scanned: ClamAV using ClamSMTP A lot of the expectation and assertion infrastructure prints out fairly complicated test failure messages, so add a C++ style log library for for logging test results. Signed-off-by: Brendan Higgins Reviewed-by: Greg Kroah-Hartman Reviewed-by: Logan Gunthorpe --- include/kunit/kunit-stream.h | 81 +++++++++++++++++++++++ include/kunit/test.h | 3 + kunit/Makefile | 3 +- kunit/kunit-stream.c | 123 +++++++++++++++++++++++++++++++++++ kunit/test.c | 6 ++ 5 files changed, 215 insertions(+), 1 deletion(-) create mode 100644 include/kunit/kunit-stream.h create mode 100644 kunit/kunit-stream.c diff --git a/include/kunit/kunit-stream.h b/include/kunit/kunit-stream.h new file mode 100644 index 0000000000000..a7b53eabf6be4 --- /dev/null +++ b/include/kunit/kunit-stream.h @@ -0,0 +1,81 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * C++ stream style string formatter and printer used in KUnit for outputting + * KUnit messages. + * + * Copyright (C) 2019, Google LLC. + * Author: Brendan Higgins + */ + +#ifndef _KUNIT_KUNIT_STREAM_H +#define _KUNIT_KUNIT_STREAM_H + +#include +#include + +struct kunit; + +/** + * struct kunit_stream - a std::stream style string builder. + * + * A std::stream style string builder. Allows messages to be built up and + * printed all at once. + */ +struct kunit_stream { + /* private: internal use only. */ + struct kunit *test; + const char *level; + struct string_stream *internal_stream; +}; + +/** + * alloc_kunit_stream() - constructs a new &struct kunit_stream. + * @test: The test context object. + * @level: The log level at which to print out the message. + * + * Constructs a new test managed &struct kunit_stream. + */ +struct kunit_stream *alloc_kunit_stream(struct kunit *test, const char *level); + +/** + * kunit_stream_add(): adds the formatted input to the internal buffer. + * @kstream: the stream being operated on. + * @fmt: printf style format string to append to stream. + * + * Appends the formatted string, @fmt, to the internal buffer. + */ +void __printf(2, 3) kunit_stream_add(struct kunit_stream *kstream, + const char *fmt, ...); + +/** + * kunit_stream_append(): appends the contents of @other to @kstream. + * @kstream: the stream to which @other is appended. + * @other: the stream whose contents are appended to @kstream. + * + * Appends the contents of @other to @kstream. + */ +void kunit_stream_append(struct kunit_stream *kstream, + struct kunit_stream *other); + +/** + * kunit_stream_commit(): prints out the internal buffer to the user. + * @kstream: the stream being operated on. + * + * Outputs the contents of the internal buffer as a kunit_printk formatted + * output. KUNIT_STREAM ONLY OUTPUTS ITS BUFFER TO THE USER IF COMMIT IS + * CALLED!!! The reason for this is that it allows us to construct a message + * before we know whether we want to print it out; this can be extremely handy + * if there is information you might need for a failure message that is easiest + * to collect in the steps leading up to the actual check. + */ +void kunit_stream_commit(struct kunit_stream *kstream); + +/** + * kunit_stream_clear(): clears the internal buffer. + * @kstream: the stream being operated on. + * + * Clears the contents of the internal buffer. + */ +void kunit_stream_clear(struct kunit_stream *kstream); + +#endif /* _KUNIT_KUNIT_STREAM_H */ diff --git a/include/kunit/test.h b/include/kunit/test.h index bdf41d31c343c..bc7dbdcf8abab 100644 --- a/include/kunit/test.h +++ b/include/kunit/test.h @@ -11,6 +11,7 @@ #include #include +#include struct kunit_resource; @@ -184,6 +185,8 @@ struct kunit { void kunit_init_test(struct kunit *test, const char *name); +void kunit_fail(struct kunit *test, struct kunit_stream *stream); + int kunit_run_tests(struct kunit_suite *suite); /** diff --git a/kunit/Makefile b/kunit/Makefile index 275b565a0e81f..6ddc622ee6b1c 100644 --- a/kunit/Makefile +++ b/kunit/Makefile @@ -1,2 +1,3 @@ obj-$(CONFIG_KUNIT) += test.o \ - string-stream.o + string-stream.o \ + kunit-stream.o diff --git a/kunit/kunit-stream.c b/kunit/kunit-stream.c new file mode 100644 index 0000000000000..8bea1f22eafb5 --- /dev/null +++ b/kunit/kunit-stream.c @@ -0,0 +1,123 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * C++ stream style string formatter and printer used in KUnit for outputting + * KUnit messages. + * + * Copyright (C) 2019, Google LLC. + * Author: Brendan Higgins + */ + +#include +#include +#include + +void kunit_stream_add(struct kunit_stream *kstream, const char *fmt, ...) +{ + va_list args; + struct string_stream *stream = kstream->internal_stream; + + va_start(args, fmt); + + if (string_stream_vadd(stream, fmt, args) < 0) + kunit_err(kstream->test, + "Failed to allocate fragment: %s\n", + fmt); + + va_end(args); +} + +void kunit_stream_append(struct kunit_stream *kstream, + struct kunit_stream *other) +{ + struct string_stream *other_stream = other->internal_stream; + const char *other_content; + + other_content = string_stream_get_string(other_stream); + + if (!other_content) { + kunit_err(kstream->test, + "Failed to get string from second argument for appending\n"); + return; + } + + kunit_stream_add(kstream, other_content); +} + +void kunit_stream_clear(struct kunit_stream *kstream) +{ + string_stream_clear(kstream->internal_stream); +} + +void kunit_stream_commit(struct kunit_stream *kstream) +{ + struct string_stream *stream = kstream->internal_stream; + struct string_stream_fragment *fragment; + struct kunit *test = kstream->test; + char *buf; + + buf = string_stream_get_string(stream); + if (!buf) { + kunit_err(test, + "Could not allocate buffer, dumping stream:\n"); + list_for_each_entry(fragment, &stream->fragments, node) { + kunit_err(test, fragment->fragment); + } + kunit_err(test, "\n"); + goto cleanup; + } + + kunit_printk(kstream->level, test, buf); + kfree(buf); + +cleanup: + kunit_stream_clear(kstream); +} + +static int kunit_stream_init(struct kunit_resource *res, void *context) +{ + struct kunit *test = context; + struct kunit_stream *stream; + + stream = kzalloc(sizeof(*stream), GFP_KERNEL); + if (!stream) + return -ENOMEM; + + res->allocation = stream; + stream->test = test; + stream->internal_stream = alloc_string_stream(test); + + if (!stream->internal_stream) + return -ENOMEM; + + return 0; +} + +static void kunit_stream_free(struct kunit_resource *res) +{ + struct kunit_stream *stream = res->allocation; + + if (!string_stream_is_empty(stream->internal_stream)) { + kunit_err(stream->test, + "End of test case reached with uncommitted stream entries\n"); + kunit_stream_commit(stream); + } +} + +struct kunit_stream *alloc_kunit_stream(struct kunit *test, const char *level) +{ + struct kunit_stream *kstream; + struct kunit_resource *res; + + res = kunit_alloc_resource(test, + kunit_stream_init, + kunit_stream_free, + test); + + if (!res) + return NULL; + + kstream = res->allocation; + kstream->level = level; + + return kstream; +} diff --git a/kunit/test.c b/kunit/test.c index f165c9d8e10b0..29edf34a89a37 100644 --- a/kunit/test.c +++ b/kunit/test.c @@ -120,6 +120,12 @@ static void kunit_print_test_case_ok_not_ok(struct kunit_case *test_case, test_case->name); } +void kunit_fail(struct kunit *test, struct kunit_stream *stream) +{ + kunit_set_failure(test); + kunit_stream_commit(stream); +} + void kunit_init_test(struct kunit *test, const char *name) { mutex_init(&test->lock);