From patchwork Fri Jan 11 13:27:05 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jacopo Mondi X-Patchwork-Id: 208 Return-Path: Received: from relay8-d.mail.gandi.net (relay8-d.mail.gandi.net [217.70.183.201]) by lancelot.ideasonboard.com (Postfix) with ESMTPS id 439F960B34 for ; Fri, 11 Jan 2019 14:27:10 +0100 (CET) X-Originating-IP: 2.224.242.101 Received: from uno.lan (2-224-242-101.ip172.fastwebnet.it [2.224.242.101]) (Authenticated sender: jacopo@jmondi.org) by relay8-d.mail.gandi.net (Postfix) with ESMTPSA id 8E1B91BF204; Fri, 11 Jan 2019 13:27:08 +0000 (UTC) From: Jacopo Mondi To: libcamera-devel@lists.libcamera.org Date: Fri, 11 Jan 2019 14:27:05 +0100 Message-Id: <20190111132705.19329-4-jacopo@jmondi.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190111132705.19329-1-jacopo@jmondi.org> References: <20190111132705.19329-1-jacopo@jmondi.org> MIME-Version: 1.0 Subject: [libcamera-devel] [PATCH v2 3/3] test: media_device: Add link handling test X-BeenThere: libcamera-devel@lists.libcamera.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 11 Jan 2019 13:27:10 -0000 Add a test unit that exercise link handling on the VIMC media graph. Reviewed-by: Niklas Söderlund Signed-off-by: Jacopo Mondi --- test/media_device/media_device_link_test.cpp | 188 +++++++++++++++++++ test/media_device/meson.build | 1 + 2 files changed, 189 insertions(+) create mode 100644 test/media_device/media_device_link_test.cpp -- 2.20.1 diff --git a/test/media_device/media_device_link_test.cpp b/test/media_device/media_device_link_test.cpp new file mode 100644 index 0000000..a335a1b --- /dev/null +++ b/test/media_device/media_device_link_test.cpp @@ -0,0 +1,188 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (C) 2019, Google Inc. + * + * media_device_link_test.cpp - Tests link handling on media devices + */ +#include + +#include "device_enumerator.h" +#include "media_device.h" + +#include "test.h" + +using namespace libcamera; +using namespace std; + +/* + * This test only runs on VIMC: exercising a known media graph makes possible + * to make assumptions on the expected results. + * + * If the VIMC module is not loaded, the test is skipped. + */ +class MediaDeviceLinkTest : public Test +{ + int init() + { + enumerator_ = DeviceEnumerator::create(); + if (enumerator_->enumerate()) + return TestFail; + + DeviceMatch dm("vimc"); + dev_ = enumerator_->search(dm); + if (!dev_) + return TestSkip; + + dev_->acquire(); + + if (dev_->open()) + return TestFail; + + return 0; + } + + int run() + { + /* First of all reset all links in the media graph. */ + int ret = dev_->disableLinks(); + if (ret) + return TestFail; + + /* + * Test if link can be consistently retrieved through the + * different methods the media device offers. + */ + MediaLink *link = dev_->link("Debayer A", 1, "Scaler", 0); + if (!link) { + cerr << "Unable to find link \"Debayer A\"[1] ->" + << "\"Scaler\"[0]" << endl + << "This link exists in VIMC media graph" + << endl; + return TestFail; + } + + MediaEntity *source = dev_->getEntityByName("Debayer A"); + if (!source) { + cerr << "Unable to find entity \"Debayer A\"" << endl; + return TestFail; + } + + MediaEntity *sink = dev_->getEntityByName("Scaler"); + if (!sink) { + cerr << "Unable to find entity \"Scaler\"" << endl; + return TestFail; + } + + MediaLink *link2 = dev_->link(source, 1, sink, 0); + if (!link2) { + cerr << "Unable to find link \"Debayer A\"[1] ->" + << "\"Scaler\"[0]" << endl + << "This link exists in VIMC media graph" + << endl; + return TestFail; + } + + if (link != link2) { + cerr << "The returned link does not match what expected" + << endl; + return TestFail; + } + + link2 = dev_->link(source->getPadByIndex(1), + sink->getPadByIndex(0)); + if (!link2) { + cerr << "Unable to find link \"Debayer A\"[1] ->" + << "\"Scaler\"[0]" << endl + << "This link exists in VIMC media graph" + << endl; + return TestFail; + } + + if (link != link2) { + cerr << "The returned link does not match what expected" + << endl; + return TestFail; + } + + /* After reset the link shall not be enabled. */ + if (link->flags() & MEDIA_LNK_FL_ENABLED) { + cerr << "Link \"Debayer A\"[1] -> \"Scaler\"[0]" + << " should not be enabled after a device reset" + << endl; + return TestFail; + } + + /* Enable the link and test if enabling was successful. */ + ret = link->setEnabled(true); + if (ret) + return TestFail; + + if (!(link->flags() & MEDIA_LNK_FL_ENABLED)) { + cerr << "Link \"Debayer A\"[1] -> \"Scaler\"[0]" + << " should now be enabled" << endl; + return TestFail; + } + + /* Disable the link and test if disabling was successful. */ + ret = link->setEnabled(false); + if (ret) + return TestFail; + + if (link->flags() & MEDIA_LNK_FL_ENABLED) { + cerr << "Link \"Debayer A\"[1] -> \"Scaler\"[0]" + << " should now be disabled" << endl; + return TestFail; + } + + /* Try to get a non existing link. */ + link = dev_->link("Sensor A", 1, "Scaler", 0); + if (link) { + cerr << "Link \"Sensor A\"[1] -> \"Scaler\"[0]" + << " does not exist but something was returned" + << endl; + return TestFail; + } + + /* Now get an immutable link and try to disable it. */ + link = dev_->link("Sensor A", 0, "Raw Capture 0", 0); + if (!link) { + cerr << "Unable to find link \"Sensor A\"[0] -> " + << "\"Raw Capture 0\"[0]" << endl + << "This link exists in VIMC media graph" + << endl; + return TestFail; + } + + if (!(link->flags() & MEDIA_LNK_FL_IMMUTABLE)) { + cerr << "Link \"Sensor A\"[0] -> \"Raw Capture 0\"[0]" + << " should have been 'IMMUTABLE'" << endl; + return TestFail; + } + + /* Disabling an immutable link shall fail. */ + ret = link->setEnabled(false); + if (!ret) { + cerr << "Link \"Sensor A\"[0] -> \"Raw Capture 0\"[0]" + << " is 'IMMUTABLE', it shouldn't be disabled" + << endl; + return TestFail; + } + + return 0; + } + + void cleanup() + { + dev_->close(); + dev_->release(); + + delete dev_; + delete enumerator_; + } + +private: + DeviceEnumerator *enumerator_; + MediaDevice *dev_; +}; + +TEST_REGISTER(MediaDeviceLinkTest); diff --git a/test/media_device/meson.build b/test/media_device/meson.build index e4bedb7..d91a022 100644 --- a/test/media_device/meson.build +++ b/test/media_device/meson.build @@ -1,5 +1,6 @@ media_device_tests = [ ['media_device_print_test', 'media_device_print_test.cpp'], + ['media_device_link_test', 'media_device_link_test.cpp'], ] foreach t : media_device_tests