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{ "id": 15826, "url": "https://patchwork.libcamera.org/api/1.1/patches/15826/?format=api", "web_url": "https://patchwork.libcamera.org/patch/15826/", "project": { "id": 1, "url": "https://patchwork.libcamera.org/api/1.1/projects/1/?format=api", "name": "libcamera", "link_name": "libcamera", "list_id": "libcamera_core", "list_email": "libcamera-devel@lists.libcamera.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20220507101152.31412-7-tomi.valkeinen@ideasonboard.com>", "date": "2022-05-07T10:11:51", "name": "[libcamera-devel,v9,6/7] py: add unittests.py", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": false, "hash": "c86484e6067ad074828ea931461a2f6473cc27fe", "submitter": { "id": 109, "url": "https://patchwork.libcamera.org/api/1.1/people/109/?format=api", "name": "Tomi Valkeinen", "email": "tomi.valkeinen@ideasonboard.com" }, "delegate": null, "mbox": "https://patchwork.libcamera.org/patch/15826/mbox/", "series": [ { "id": 3100, "url": "https://patchwork.libcamera.org/api/1.1/series/3100/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=3100", "date": "2022-05-07T10:11:45", "name": "Python bindings", "version": 9, "mbox": "https://patchwork.libcamera.org/series/3100/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/patches/15826/comments/", "check": "pending", "checks": "https://patchwork.libcamera.org/api/patches/15826/checks/", "tags": {}, "headers": { "Return-Path": "<libcamera-devel-bounces@lists.libcamera.org>", "X-Original-To": "parsemail@patchwork.libcamera.org", "Delivered-To": "parsemail@patchwork.libcamera.org", "Received": [ "from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id C7966C326E\n\tfor <parsemail@patchwork.libcamera.org>;\n\tSat, 7 May 2022 10:12:24 +0000 (UTC)", "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id EBBF465647;\n\tSat, 7 May 2022 12:12:22 +0200 (CEST)", "from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[213.167.242.64])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 522C765651\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tSat, 7 May 2022 12:12:18 +0200 (CEST)", "from deskari.lan (91-156-85-209.elisa-laajakaista.fi\n\t[91.156.85.209])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id B966B6D5;\n\tSat, 7 May 2022 12:12:17 +0200 (CEST)" ], "DKIM-Signature": [ "v=1; a=rsa-sha256; c=relaxed/simple; d=libcamera.org;\n\ts=mail; t=1651918343;\n\tbh=5dvrmpnIxMrEeM2EX3VJMkMAhM0T2w8XNKQDdlJj7jg=;\n\th=To:Date:In-Reply-To:References:Subject:List-Id:List-Unsubscribe:\n\tList-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To:\n\tFrom;\n\tb=xe6axFNJNDD20qLrq6xY3q0lE20Jhf+N48tUv2IFe363MydTpmFtyuzdrlLQV/Z59\n\tyWiXTnQz1J4mUGMxpZKDXtsTkyLGBSxZPFHlBWBvb4mSgAn1WxuzWGjo4B8NMe6d16\n\tame9hHd2RZxBTxFPRtRtNoBIPCtsW9rAc2OnZpbmQGpKedZkgQlyXE7/8JRlcbOAW3\n\tmU79rwyloaM/FGfjXy0CuVsMSs6ymMh2eDwPP8TqK/a4/Sun6u8tRzXex/X6ZkdPHD\n\tws6EAiAZ8ZPN+vkNIAhQgGgAddPbYuttdSiFQ+2nyUXZ0gniYjbHyyCw9gWdUspZvw\n\tGNY8q3r3RnN/A==", "v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1651918338;\n\tbh=5dvrmpnIxMrEeM2EX3VJMkMAhM0T2w8XNKQDdlJj7jg=;\n\th=From:To:Cc:Subject:Date:In-Reply-To:References:From;\n\tb=vWqnMP9cqmh0Hd/Bmb+NMUK7r0WZt7vmvpxlhn9GE38eq3bP6NI2lz6mSAbYUzhXu\n\twDoso3rZYy4rjQX7lMKxRXwh4nvtAtnzNOy7dlSKv114GaxBl31ybsCuXif8tbxkQQ\n\tticQwVBIddzS5GHQppzAo3NuT//+8YteByZ5Lf+8=" ], "Authentication-Results": "lancelot.ideasonboard.com; dkim=pass (1024-bit key; \n\tunprotected) header.d=ideasonboard.com\n\theader.i=@ideasonboard.com\n\theader.b=\"vWqnMP9c\"; dkim-atps=neutral", "To": "libcamera-devel@lists.libcamera.org,\n\tDavid Plowman <david.plowman@raspberrypi.com>,\n\tKieran Bingham <kieran.bingham@ideasonboard.com>,\n\tLaurent Pinchart <laurent.pinchart@ideasonboard.com>,\n\tJacopo Mondi <jacopo@jmondi.org>", "Date": "Sat, 7 May 2022 13:11:51 +0300", "Message-Id": "<20220507101152.31412-7-tomi.valkeinen@ideasonboard.com>", "X-Mailer": "git-send-email 2.34.1", "In-Reply-To": "<20220507101152.31412-1-tomi.valkeinen@ideasonboard.com>", "References": "<20220507101152.31412-1-tomi.valkeinen@ideasonboard.com>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Subject": "[libcamera-devel] [PATCH v9 6/7] py: add unittests.py", "X-BeenThere": "libcamera-devel@lists.libcamera.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "<libcamera-devel.lists.libcamera.org>", "List-Unsubscribe": "<https://lists.libcamera.org/options/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=unsubscribe>", "List-Archive": "<https://lists.libcamera.org/pipermail/libcamera-devel/>", "List-Post": "<mailto:libcamera-devel@lists.libcamera.org>", "List-Help": "<mailto:libcamera-devel-request@lists.libcamera.org?subject=help>", "List-Subscribe": "<https://lists.libcamera.org/listinfo/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=subscribe>", "From": "Tomi Valkeinen via libcamera-devel\n\t<libcamera-devel@lists.libcamera.org>", "Reply-To": "Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>", "Errors-To": "libcamera-devel-bounces@lists.libcamera.org", "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>" }, "content": "Add a simple unittests.py as a base for python unittests.\n\nSigned-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>\nReviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>\n---\n test/meson.build | 1 +\n test/py/meson.build | 17 +++\n test/py/unittests.py | 352 +++++++++++++++++++++++++++++++++++++++++++\n 3 files changed, 370 insertions(+)\n create mode 100644 test/py/meson.build\n create mode 100755 test/py/unittests.py", "diff": "diff --git a/test/meson.build b/test/meson.build\nindex fd4c5ca0..623f3baa 100644\n--- a/test/meson.build\n+++ b/test/meson.build\n@@ -18,6 +18,7 @@ subdir('log')\n subdir('media_device')\n subdir('pipeline')\n subdir('process')\n+subdir('py')\n subdir('serialization')\n subdir('stream')\n subdir('v4l2_compat')\ndiff --git a/test/py/meson.build b/test/py/meson.build\nnew file mode 100644\nindex 00000000..2affdbd4\n--- /dev/null\n+++ b/test/py/meson.build\n@@ -0,0 +1,17 @@\n+# SPDX-License-Identifier: CC0-1.0\n+\n+if not pycamera_enabled\n+ subdir_done()\n+endif\n+\n+pymod = import('python')\n+py3 = pymod.find_installation('python3')\n+\n+pypathdir = meson.project_build_root() / 'src' / 'py'\n+\n+test('pyunittests',\n+ py3,\n+ args : files('unittests.py'),\n+ env : ['PYTHONPATH=' + pypathdir],\n+ suite : 'pybindings',\n+ is_parallel : false)\ndiff --git a/test/py/unittests.py b/test/py/unittests.py\nnew file mode 100755\nindex 00000000..cbc00ff3\n--- /dev/null\n+++ b/test/py/unittests.py\n@@ -0,0 +1,352 @@\n+#!/usr/bin/env python3\n+\n+# SPDX-License-Identifier: GPL-2.0-or-later\n+# Copyright (C) 2022, Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>\n+\n+from collections import defaultdict\n+import errno\n+import gc\n+import libcamera as libcam\n+import os\n+import selectors\n+import time\n+import unittest\n+import weakref\n+\n+\n+class BaseTestCase(unittest.TestCase):\n+ def assertZero(self, a, msg=None):\n+ self.assertEqual(a, 0, msg)\n+\n+\n+class SimpleTestMethods(BaseTestCase):\n+ def test_get_ref(self):\n+ cm = libcam.CameraManager.singleton()\n+ wr_cm = weakref.ref(cm)\n+\n+ cam = cm.get('platform/vimc.0 Sensor B')\n+ self.assertIsNotNone(cam)\n+ wr_cam = weakref.ref(cam)\n+\n+ cm = None\n+ gc.collect()\n+ self.assertIsNotNone(wr_cm())\n+\n+ cam = None\n+ gc.collect()\n+ self.assertIsNone(wr_cm())\n+ self.assertIsNone(wr_cam())\n+\n+ def test_acquire_release(self):\n+ cm = libcam.CameraManager.singleton()\n+ cam = cm.get('platform/vimc.0 Sensor B')\n+ self.assertIsNotNone(cam)\n+\n+ ret = cam.acquire()\n+ self.assertZero(ret)\n+\n+ ret = cam.release()\n+ self.assertZero(ret)\n+\n+ def test_double_acquire(self):\n+ cm = libcam.CameraManager.singleton()\n+ cam = cm.get('platform/vimc.0 Sensor B')\n+ self.assertIsNotNone(cam)\n+\n+ ret = cam.acquire()\n+ self.assertZero(ret)\n+\n+ libcam.log_set_level('Camera', 'FATAL')\n+ ret = cam.acquire()\n+ self.assertEqual(ret, -errno.EBUSY)\n+ libcam.log_set_level('Camera', 'ERROR')\n+\n+ ret = cam.release()\n+ self.assertZero(ret)\n+\n+ ret = cam.release()\n+ # I expected EBUSY, but looks like double release works fine\n+ self.assertZero(ret)\n+\n+\n+class CameraTesterBase(BaseTestCase):\n+ def setUp(self):\n+ self.cm = libcam.CameraManager.singleton()\n+ self.cam = next((cam for cam in self.cm.cameras if 'platform/vimc' in cam.id), None)\n+ if self.cam is None:\n+ self.cm = None\n+ self.skipTest('No vimc found')\n+\n+ ret = self.cam.acquire()\n+ if ret != 0:\n+ self.cam = None\n+ self.cm = None\n+ raise Exception('Failed to acquire camera')\n+\n+ def tearDown(self):\n+ # If a test fails, the camera may be in running state. So always stop.\n+ self.cam.stop()\n+\n+ ret = self.cam.release()\n+ if ret != 0:\n+ raise Exception('Failed to release camera')\n+\n+ self.cam = None\n+ self.cm = None\n+\n+\n+class AllocatorTestMethods(CameraTesterBase):\n+ def test_allocator(self):\n+ cam = self.cam\n+\n+ camconfig = cam.generate_configuration([libcam.StreamRole.StillCapture])\n+ self.assertTrue(camconfig.size == 1)\n+ wr_camconfig = weakref.ref(camconfig)\n+\n+ streamconfig = camconfig.at(0)\n+ wr_streamconfig = weakref.ref(streamconfig)\n+\n+ ret = cam.configure(camconfig)\n+ self.assertZero(ret)\n+\n+ stream = streamconfig.stream\n+ wr_stream = weakref.ref(stream)\n+\n+ # stream should keep streamconfig and camconfig alive\n+ streamconfig = None\n+ camconfig = None\n+ gc.collect()\n+ self.assertIsNotNone(wr_camconfig())\n+ self.assertIsNotNone(wr_streamconfig())\n+\n+ allocator = libcam.FrameBufferAllocator(cam)\n+ ret = allocator.allocate(stream)\n+ self.assertTrue(ret > 0)\n+ wr_allocator = weakref.ref(allocator)\n+\n+ buffers = allocator.buffers(stream)\n+ buffers = None\n+\n+ buffer = allocator.buffers(stream)[0]\n+ self.assertIsNotNone(buffer)\n+ wr_buffer = weakref.ref(buffer)\n+\n+ allocator = None\n+ gc.collect()\n+ self.assertIsNotNone(wr_buffer())\n+ self.assertIsNotNone(wr_allocator())\n+ self.assertIsNotNone(wr_stream())\n+\n+ buffer = None\n+ gc.collect()\n+ self.assertIsNone(wr_buffer())\n+ self.assertIsNone(wr_allocator())\n+ self.assertIsNotNone(wr_stream())\n+\n+ stream = None\n+ gc.collect()\n+ self.assertIsNone(wr_stream())\n+ self.assertIsNone(wr_camconfig())\n+ self.assertIsNone(wr_streamconfig())\n+\n+\n+class SimpleCaptureMethods(CameraTesterBase):\n+ def test_sleep(self):\n+ cm = self.cm\n+ cam = self.cam\n+\n+ camconfig = cam.generate_configuration([libcam.StreamRole.StillCapture])\n+ self.assertTrue(camconfig.size == 1)\n+\n+ streamconfig = camconfig.at(0)\n+ fmts = streamconfig.formats\n+\n+ ret = cam.configure(camconfig)\n+ self.assertZero(ret)\n+\n+ stream = streamconfig.stream\n+\n+ allocator = libcam.FrameBufferAllocator(cam)\n+ ret = allocator.allocate(stream)\n+ self.assertTrue(ret > 0)\n+\n+ num_bufs = len(allocator.buffers(stream))\n+\n+ reqs = []\n+ for i in range(num_bufs):\n+ req = cam.create_request(i)\n+ self.assertIsNotNone(req)\n+\n+ buffer = allocator.buffers(stream)[i]\n+ ret = req.add_buffer(stream, buffer)\n+ self.assertZero(ret)\n+\n+ reqs.append(req)\n+\n+ buffer = None\n+\n+ ret = cam.start()\n+ self.assertZero(ret)\n+\n+ for req in reqs:\n+ ret = cam.queue_request(req)\n+ self.assertZero(ret)\n+\n+ reqs = None\n+ gc.collect()\n+\n+ time.sleep(0.5)\n+\n+ reqs = cm.get_ready_requests()\n+\n+ self.assertTrue(len(reqs) == num_bufs)\n+\n+ for i, req in enumerate(reqs):\n+ self.assertTrue(i == req.cookie)\n+\n+ reqs = None\n+ gc.collect()\n+\n+ ret = cam.stop()\n+ self.assertZero(ret)\n+\n+ def test_select(self):\n+ cm = self.cm\n+ cam = self.cam\n+\n+ camconfig = cam.generate_configuration([libcam.StreamRole.StillCapture])\n+ self.assertTrue(camconfig.size == 1)\n+\n+ streamconfig = camconfig.at(0)\n+ fmts = streamconfig.formats\n+\n+ ret = cam.configure(camconfig)\n+ self.assertZero(ret)\n+\n+ stream = streamconfig.stream\n+\n+ allocator = libcam.FrameBufferAllocator(cam)\n+ ret = allocator.allocate(stream)\n+ self.assertTrue(ret > 0)\n+\n+ num_bufs = len(allocator.buffers(stream))\n+\n+ reqs = []\n+ for i in range(num_bufs):\n+ req = cam.create_request(i)\n+ self.assertIsNotNone(req)\n+\n+ buffer = allocator.buffers(stream)[i]\n+ ret = req.add_buffer(stream, buffer)\n+ self.assertZero(ret)\n+\n+ reqs.append(req)\n+\n+ buffer = None\n+\n+ ret = cam.start()\n+ self.assertZero(ret)\n+\n+ for req in reqs:\n+ ret = cam.queue_request(req)\n+ self.assertZero(ret)\n+\n+ reqs = None\n+ gc.collect()\n+\n+ sel = selectors.DefaultSelector()\n+ sel.register(cm.efd, selectors.EVENT_READ)\n+\n+ reqs = []\n+\n+ running = True\n+ while running:\n+ events = sel.select()\n+ for key, mask in events:\n+ os.read(key.fileobj, 8)\n+\n+ ready_reqs = cm.get_ready_requests()\n+\n+ self.assertTrue(len(ready_reqs) > 0)\n+\n+ reqs += ready_reqs\n+\n+ if len(reqs) == num_bufs:\n+ running = False\n+\n+ self.assertTrue(len(reqs) == num_bufs)\n+\n+ for i, req in enumerate(reqs):\n+ self.assertTrue(i == req.cookie)\n+\n+ reqs = None\n+ gc.collect()\n+\n+ ret = cam.stop()\n+ self.assertZero(ret)\n+\n+\n+# Recursively expand slist's objects into olist, using seen to track already\n+# processed objects.\n+def _getr(slist, olist, seen):\n+ for e in slist:\n+ if id(e) in seen:\n+ continue\n+ seen.add(id(e))\n+ olist.append(e)\n+ tl = gc.get_referents(e)\n+ if tl:\n+ _getr(tl, olist, seen)\n+\n+\n+def get_all_objects(ignored=[]):\n+ gcl = gc.get_objects()\n+ olist = []\n+ seen = set()\n+\n+ seen.add(id(gcl))\n+ seen.add(id(olist))\n+ seen.add(id(seen))\n+ seen.update(set([id(o) for o in ignored]))\n+\n+ _getr(gcl, olist, seen)\n+\n+ return olist\n+\n+\n+def create_type_count_map(olist):\n+ map = defaultdict(int)\n+ for o in olist:\n+ map[type(o)] += 1\n+ return map\n+\n+\n+def diff_type_count_maps(before, after):\n+ return [(k, after[k] - before[k]) for k in after if after[k] != before[k]]\n+\n+\n+if __name__ == '__main__':\n+ # \\todo This is an attempt to see the Python objects that are not collected,\n+ # but this doesn't work very well, as things always leak a bit.\n+ test_leaks = False\n+\n+ if test_leaks:\n+ gc.unfreeze()\n+ gc.collect()\n+\n+ obs_before = get_all_objects()\n+\n+ unittest.main(exit=False)\n+\n+ if test_leaks:\n+ gc.unfreeze()\n+ gc.collect()\n+\n+ obs_after = get_all_objects([obs_before])\n+\n+ before = create_type_count_map(obs_before)\n+ after = create_type_count_map(obs_after)\n+\n+ leaks = diff_type_count_maps(before, after)\n+ if len(leaks) > 0:\n+ print(leaks)\n", "prefixes": [ "libcamera-devel", "v9", "6/7" ] }