Bumps [actions/checkout](https://github.com/actions/checkout) from 3 to 4.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/actions/checkout/releases">actions/checkout's releases</a>.</em></p>
<blockquote>
<h2>v4.0.0</h2>
<h2>What's Changed</h2>
<ul>
<li>Update default runtime to node20 by <a href="https://github.com/takost"><code>@​takost</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/1436">actions/checkout#1436</a></li>
<li>Support fetching without the --progress option by <a href="https://github.com/simonbaird"><code>@​simonbaird</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/1067">actions/checkout#1067</a></li>
<li>Release 4.0.0 by <a href="https://github.com/takost"><code>@​takost</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/1447">actions/checkout#1447</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/takost"><code>@​takost</code></a> made their first contribution in <a href="https://redirect.github.com/actions/checkout/pull/1436">actions/checkout#1436</a></li>
<li><a href="https://github.com/simonbaird"><code>@​simonbaird</code></a> made their first contribution in <a href="https://redirect.github.com/actions/checkout/pull/1067">actions/checkout#1067</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a href="https://github.com/actions/checkout/compare/v3...v4.0.0">https://github.com/actions/checkout/compare/v3...v4.0.0</a></p>
<h2>v3.6.0</h2>
<h2>What's Changed</h2>
<ul>
<li>Mark test scripts with Bash'isms to be run via Bash by <a href="https://github.com/dscho"><code>@​dscho</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/1377">actions/checkout#1377</a></li>
<li>Add option to fetch tags even if fetch-depth &gt; 0 by <a href="https://github.com/RobertWieczoreck"><code>@​RobertWieczoreck</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/579">actions/checkout#579</a></li>
<li>Release 3.6.0 by <a href="https://github.com/luketomlinson"><code>@​luketomlinson</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/1437">actions/checkout#1437</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/RobertWieczoreck"><code>@​RobertWieczoreck</code></a> made their first contribution in <a href="https://redirect.github.com/actions/checkout/pull/579">actions/checkout#579</a></li>
<li><a href="https://github.com/luketomlinson"><code>@​luketomlinson</code></a> made their first contribution in <a href="https://redirect.github.com/actions/checkout/pull/1437">actions/checkout#1437</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a href="https://github.com/actions/checkout/compare/v3.5.3...v3.6.0">https://github.com/actions/checkout/compare/v3.5.3...v3.6.0</a></p>
<h2>v3.5.3</h2>
<h2>What's Changed</h2>
<ul>
<li>Fix: Checkout Issue in self hosted runner due to faulty submodule check-ins by <a href="https://github.com/megamanics"><code>@​megamanics</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/1196">actions/checkout#1196</a></li>
<li>Fix typos found by codespell by <a href="https://github.com/DimitriPapadopoulos"><code>@​DimitriPapadopoulos</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/1287">actions/checkout#1287</a></li>
<li>Add support for sparse checkouts by <a href="https://github.com/dscho"><code>@​dscho</code></a> and <a href="https://github.com/dfdez"><code>@​dfdez</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/1369">actions/checkout#1369</a></li>
<li>Release v3.5.3 by <a href="https://github.com/TingluoHuang"><code>@​TingluoHuang</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/1376">actions/checkout#1376</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/megamanics"><code>@​megamanics</code></a> made their first contribution in <a href="https://redirect.github.com/actions/checkout/pull/1196">actions/checkout#1196</a></li>
<li><a href="https://github.com/DimitriPapadopoulos"><code>@​DimitriPapadopoulos</code></a> made their first contribution in <a href="https://redirect.github.com/actions/checkout/pull/1287">actions/checkout#1287</a></li>
<li><a href="https://github.com/dfdez"><code>@​dfdez</code></a> made their first contribution in <a href="https://redirect.github.com/actions/checkout/pull/1369">actions/checkout#1369</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a href="https://github.com/actions/checkout/compare/v3...v3.5.3">https://github.com/actions/checkout/compare/v3...v3.5.3</a></p>
<h2>v3.5.2</h2>
<h2>What's Changed</h2>
<ul>
<li>Fix: Use correct API url / endpoint in GHES by <a href="https://github.com/fhammerl"><code>@​fhammerl</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/1289">actions/checkout#1289</a> based on <a href="https://redirect.github.com/actions/checkout/issues/1286">#1286</a> by <a href="https://github.com/1newsr"><code>@​1newsr</code></a></li>
</ul>
<p><strong>Full Changelog</strong>: <a href="https://github.com/actions/checkout/compare/v3.5.1...v3.5.2">https://github.com/actions/checkout/compare/v3.5.1...v3.5.2</a></p>
<h2>v3.5.1</h2>
<h2>What's Changed</h2>
<ul>
<li>Improve checkout performance on Windows runners by upgrading <code>@​actions/github</code> dependency by <a href="https://github.com/BrettDong"><code>@​BrettDong</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/1246">actions/checkout#1246</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/BrettDong"><code>@​BrettDong</code></a> made their first contribution in <a href="https://redirect.github.com/actions/checkout/pull/1246">actions/checkout#1246</a></li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/actions/checkout/blob/main/CHANGELOG.md">actions/checkout's changelog</a>.</em></p>
<blockquote>
<h1>Changelog</h1>
<h2>v4.0.0</h2>
<ul>
<li><a href="https://redirect.github.com/actions/checkout/pull/1067">Support fetching without the --progress option</a></li>
<li><a href="https://redirect.github.com/actions/checkout/pull/1436">Update to node20</a></li>
</ul>
<h2>v3.6.0</h2>
<ul>
<li><a href="https://redirect.github.com/actions/checkout/pull/1377">Fix: Mark test scripts with Bash'isms to be run via Bash</a></li>
<li><a href="https://redirect.github.com/actions/checkout/pull/579">Add option to fetch tags even if fetch-depth &gt; 0</a></li>
</ul>
<h2>v3.5.3</h2>
<ul>
<li><a href="https://redirect.github.com/actions/checkout/pull/1196">Fix: Checkout fail in self-hosted runners when faulty submodule are checked-in</a></li>
<li><a href="https://redirect.github.com/actions/checkout/pull/1287">Fix typos found by codespell</a></li>
<li><a href="https://redirect.github.com/actions/checkout/pull/1369">Add support for sparse checkouts</a></li>
</ul>
<h2>v3.5.2</h2>
<ul>
<li><a href="https://redirect.github.com/actions/checkout/pull/1289">Fix api endpoint for GHES</a></li>
</ul>
<h2>v3.5.1</h2>
<ul>
<li><a href="https://redirect.github.com/actions/checkout/pull/1246">Fix slow checkout on Windows</a></li>
</ul>
<h2>v3.5.0</h2>
<ul>
<li><a href="https://redirect.github.com/actions/checkout/pull/1237">Add new public key for known_hosts</a></li>
</ul>
<h2>v3.4.0</h2>
<ul>
<li><a href="https://redirect.github.com/actions/checkout/pull/1209">Upgrade codeql actions to v2</a></li>
<li><a href="https://redirect.github.com/actions/checkout/pull/1210">Upgrade dependencies</a></li>
<li><a href="https://redirect.github.com/actions/checkout/pull/1225">Upgrade <code>@​actions/io</code></a></li>
</ul>
<h2>v3.3.0</h2>
<ul>
<li><a href="https://redirect.github.com/actions/checkout/pull/1045">Implement branch list using callbacks from exec function</a></li>
<li><a href="https://redirect.github.com/actions/checkout/pull/1050">Add in explicit reference to private checkout options</a></li>
<li>[Fix comment typos (that got added in <a href="https://redirect.github.com/actions/checkout/issues/770">#770</a>)](<a href="https://redirect.github.com/actions/checkout/pull/1057">actions/checkout#1057</a>)</li>
</ul>
<h2>v3.2.0</h2>
<ul>
<li><a href="https://redirect.github.com/actions/checkout/pull/942">Add GitHub Action to perform release</a></li>
<li><a href="https://redirect.github.com/actions/checkout/pull/967">Fix status badge</a></li>
<li><a href="https://redirect.github.com/actions/checkout/pull/1002">Replace datadog/squid with ubuntu/squid Docker image</a></li>
<li><a href="https://redirect.github.com/actions/checkout/pull/964">Wrap pipeline commands for submoduleForeach in quotes</a></li>
<li><a href="https://redirect.github.com/actions/checkout/pull/1029">Update <code>@​actions/io</code> to 1.1.2</a></li>
<li><a href="https://redirect.github.com/actions/checkout/pull/1039">Upgrading version to 3.2.0</a></li>
</ul>
<h2>v3.1.0</h2>
<ul>
<li><a href="https://redirect.github.com/actions/checkout/pull/939">Use <code>@​actions/core</code> <code>saveState</code> and <code>getState</code></a></li>
<li><a href="https://redirect.github.com/actions/checkout/pull/922">Add <code>github-server-url</code> input</a></li>
</ul>
<h2>v3.0.2</h2>
<ul>
<li><a href="https://redirect.github.com/actions/checkout/pull/770">Add input <code>set-safe-directory</code></a></li>
</ul>
<h2>v3.0.1</h2>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/actions/checkout/commit/3df4ab11eba7bda6032a0b82a6bb43b11571feac"><code>3df4ab1</code></a> Release 4.0.0 (<a href="https://redirect.github.com/actions/checkout/issues/1447">#1447</a>)</li>
<li><a href="https://github.com/actions/checkout/commit/8b5e8b768746b50394015010d25e690bfab9dfbc"><code>8b5e8b7</code></a> Support fetching without the --progress option (<a href="https://redirect.github.com/actions/checkout/issues/1067">#1067</a>)</li>
<li><a href="https://github.com/actions/checkout/commit/97a652b80035363df47baee5031ec8670b8878ac"><code>97a652b</code></a> Update default runtime to node20 (<a href="https://redirect.github.com/actions/checkout/issues/1436">#1436</a>)</li>
<li>See full diff in <a href="https://github.com/actions/checkout/compare/v3...v4">compare view</a></li>
</ul>
</details>
<br />


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You can trigger Dependabot actions by commenting on this PR:
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</details>
Bump actions/checkout from 3 to 4. Bumps [actions/checkout](https://github.com/actions/checkout) from 3 to 4.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/actions/checkout/releases">actions/checkout's releases</a>.</em></p>
<blockquote>
<h2>v4.0.0</h2>
<h2>What's Changed</h2>
<ul>
<li>Update default runtime to node20 by <a href="https://github.com/takost"><code>@​takost</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/1436">actions/checkout#1436</a></li>
<li>Support fetching without the --progress option by <a href="https://github.com/simonbaird"><code>@​simonbaird</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/1067">actions/checkout#1067</a></li>
<li>Release 4.0.0 by <a href="https://github.com/takost"><code>@​takost</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/1447">actions/checkout#1447</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/takost"><code>@​takost</code></a> made their first contribution in <a href="https://redirect.github.com/actions/checkout/pull/1436">actions/checkout#1436</a></li>
<li><a href="https://github.com/simonbaird"><code>@​simonbaird</code></a> made their first contribution in <a href="https://redirect.github.com/actions/checkout/pull/1067">actions/checkout#1067</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a href="https://github.com/actions/checkout/compare/v3...v4.0.0">https://github.com/actions/checkout/compare/v3...v4.0.0</a></p>
<h2>v3.6.0</h2>
<h2>What's Changed</h2>
<ul>
<li>Mark test scripts with Bash'isms to be run via Bash by <a href="https://github.com/dscho"><code>@​dscho</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/1377">actions/checkout#1377</a></li>
<li>Add option to fetch tags even if fetch-depth &gt; 0 by <a href="https://github.com/RobertWieczoreck"><code>@​RobertWieczoreck</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/579">actions/checkout#579</a></li>
<li>Release 3.6.0 by <a href="https://github.com/luketomlinson"><code>@​luketomlinson</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/1437">actions/checkout#1437</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/RobertWieczoreck"><code>@​RobertWieczoreck</code></a> made their first contribution in <a href="https://redirect.github.com/actions/checkout/pull/579">actions/checkout#579</a></li>
<li><a href="https://github.com/luketomlinson"><code>@​luketomlinson</code></a> made their first contribution in <a href="https://redirect.github.com/actions/checkout/pull/1437">actions/checkout#1437</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a href="https://github.com/actions/checkout/compare/v3.5.3...v3.6.0">https://github.com/actions/checkout/compare/v3.5.3...v3.6.0</a></p>
<h2>v3.5.3</h2>
<h2>What's Changed</h2>
<ul>
<li>Fix: Checkout Issue in self hosted runner due to faulty submodule check-ins by <a href="https://github.com/megamanics"><code>@​megamanics</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/1196">actions/checkout#1196</a></li>
<li>Fix typos found by codespell by <a href="https://github.com/DimitriPapadopoulos"><code>@​DimitriPapadopoulos</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/1287">actions/checkout#1287</a></li>
<li>Add support for sparse checkouts by <a href="https://github.com/dscho"><code>@​dscho</code></a> and <a href="https://github.com/dfdez"><code>@​dfdez</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/1369">actions/checkout#1369</a></li>
<li>Release v3.5.3 by <a href="https://github.com/TingluoHuang"><code>@​TingluoHuang</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/1376">actions/checkout#1376</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/megamanics"><code>@​megamanics</code></a> made their first contribution in <a href="https://redirect.github.com/actions/checkout/pull/1196">actions/checkout#1196</a></li>
<li><a href="https://github.com/DimitriPapadopoulos"><code>@​DimitriPapadopoulos</code></a> made their first contribution in <a href="https://redirect.github.com/actions/checkout/pull/1287">actions/checkout#1287</a></li>
<li><a href="https://github.com/dfdez"><code>@​dfdez</code></a> made their first contribution in <a href="https://redirect.github.com/actions/checkout/pull/1369">actions/checkout#1369</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a href="https://github.com/actions/checkout/compare/v3...v3.5.3">https://github.com/actions/checkout/compare/v3...v3.5.3</a></p>
<h2>v3.5.2</h2>
<h2>What's Changed</h2>
<ul>
<li>Fix: Use correct API url / endpoint in GHES by <a href="https://github.com/fhammerl"><code>@​fhammerl</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/1289">actions/checkout#1289</a> based on <a href="https://redirect.github.com/actions/checkout/issues/1286">#1286</a> by <a href="https://github.com/1newsr"><code>@​1newsr</code></a></li>
</ul>
<p><strong>Full Changelog</strong>: <a href="https://github.com/actions/checkout/compare/v3.5.1...v3.5.2">https://github.com/actions/checkout/compare/v3.5.1...v3.5.2</a></p>
<h2>v3.5.1</h2>
<h2>What's Changed</h2>
<ul>
<li>Improve checkout performance on Windows runners by upgrading <code>@​actions/github</code> dependency by <a href="https://github.com/BrettDong"><code>@​BrettDong</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/1246">actions/checkout#1246</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/BrettDong"><code>@​BrettDong</code></a> made their first contribution in <a href="https://redirect.github.com/actions/checkout/pull/1246">actions/checkout#1246</a></li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/actions/checkout/blob/main/CHANGELOG.md">actions/checkout's changelog</a>.</em></p>
<blockquote>
<h1>Changelog</h1>
<h2>v4.0.0</h2>
<ul>
<li><a href="https://redirect.github.com/actions/checkout/pull/1067">Support fetching without the --progress option</a></li>
<li><a href="https://redirect.github.com/actions/checkout/pull/1436">Update to node20</a></li>
</ul>
<h2>v3.6.0</h2>
<ul>
<li><a href="https://redirect.github.com/actions/checkout/pull/1377">Fix: Mark test scripts with Bash'isms to be run via Bash</a></li>
<li><a href="https://redirect.github.com/actions/checkout/pull/579">Add option to fetch tags even if fetch-depth &gt; 0</a></li>
</ul>
<h2>v3.5.3</h2>
<ul>
<li><a href="https://redirect.github.com/actions/checkout/pull/1196">Fix: Checkout fail in self-hosted runners when faulty submodule are checked-in</a></li>
<li><a href="https://redirect.github.com/actions/checkout/pull/1287">Fix typos found by codespell</a></li>
<li><a href="https://redirect.github.com/actions/checkout/pull/1369">Add support for sparse checkouts</a></li>
</ul>
<h2>v3.5.2</h2>
<ul>
<li><a href="https://redirect.github.com/actions/checkout/pull/1289">Fix api endpoint for GHES</a></li>
</ul>
<h2>v3.5.1</h2>
<ul>
<li><a href="https://redirect.github.com/actions/checkout/pull/1246">Fix slow checkout on Windows</a></li>
</ul>
<h2>v3.5.0</h2>
<ul>
<li><a href="https://redirect.github.com/actions/checkout/pull/1237">Add new public key for known_hosts</a></li>
</ul>
<h2>v3.4.0</h2>
<ul>
<li><a href="https://redirect.github.com/actions/checkout/pull/1209">Upgrade codeql actions to v2</a></li>
<li><a href="https://redirect.github.com/actions/checkout/pull/1210">Upgrade dependencies</a></li>
<li><a href="https://redirect.github.com/actions/checkout/pull/1225">Upgrade <code>@​actions/io</code></a></li>
</ul>
<h2>v3.3.0</h2>
<ul>
<li><a href="https://redirect.github.com/actions/checkout/pull/1045">Implement branch list using callbacks from exec function</a></li>
<li><a href="https://redirect.github.com/actions/checkout/pull/1050">Add in explicit reference to private checkout options</a></li>
<li>[Fix comment typos (that got added in <a href="https://redirect.github.com/actions/checkout/issues/770">#770</a>)](<a href="https://redirect.github.com/actions/checkout/pull/1057">actions/checkout#1057</a>)</li>
</ul>
<h2>v3.2.0</h2>
<ul>
<li><a href="https://redirect.github.com/actions/checkout/pull/942">Add GitHub Action to perform release</a></li>
<li><a href="https://redirect.github.com/actions/checkout/pull/967">Fix status badge</a></li>
<li><a href="https://redirect.github.com/actions/checkout/pull/1002">Replace datadog/squid with ubuntu/squid Docker image</a></li>
<li><a href="https://redirect.github.com/actions/checkout/pull/964">Wrap pipeline commands for submoduleForeach in quotes</a></li>
<li><a href="https://redirect.github.com/actions/checkout/pull/1029">Update <code>@​actions/io</code> to 1.1.2</a></li>
<li><a href="https://redirect.github.com/actions/checkout/pull/1039">Upgrading version to 3.2.0</a></li>
</ul>
<h2>v3.1.0</h2>
<ul>
<li><a href="https://redirect.github.com/actions/checkout/pull/939">Use <code>@​actions/core</code> <code>saveState</code> and <code>getState</code></a></li>
<li><a href="https://redirect.github.com/actions/checkout/pull/922">Add <code>github-server-url</code> input</a></li>
</ul>
<h2>v3.0.2</h2>
<ul>
<li><a href="https://redirect.github.com/actions/checkout/pull/770">Add input <code>set-safe-directory</code></a></li>
</ul>
<h2>v3.0.1</h2>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/actions/checkout/commit/3df4ab11eba7bda6032a0b82a6bb43b11571feac"><code>3df4ab1</code></a> Release 4.0.0 (<a href="https://redirect.github.com/actions/checkout/issues/1447">#1447</a>)</li>
<li><a href="https://github.com/actions/checkout/commit/8b5e8b768746b50394015010d25e690bfab9dfbc"><code>8b5e8b7</code></a> Support fetching without the --progress option (<a href="https://redirect.github.com/actions/checkout/issues/1067">#1067</a>)</li>
<li><a href="https://github.com/actions/checkout/commit/97a652b80035363df47baee5031ec8670b8878ac"><code>97a652b</code></a> Update default runtime to node20 (<a href="https://redirect.github.com/actions/checkout/issues/1436">#1436</a>)</li>
<li>See full diff in <a href="https://github.com/actions/checkout/compare/v3...v4">compare view</a></li>
</ul>
</details>
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</details>
"""Tests for the ArangoDb."""
import datetime
from unittest.mock import MagicMock, Mock, patch, sentinel

import pytest

from celery.app import backends
from celery.backends import arangodb as module
from celery.backends.arangodb import ArangoDbBackend
from celery.exceptions import ImproperlyConfigured

try:
    import pyArango
except ImportError:
    pyArango = None

pytest.importorskip('pyArango')


class test_ArangoDbBackend:

    def setup_method(self):
        self.backend = ArangoDbBackend(app=self.app)

    def test_init_no_arangodb(self):
        prev, module.py_arango_connection = module.py_arango_connection, None
        try:
            with pytest.raises(ImproperlyConfigured):
                ArangoDbBackend(app=self.app)
        finally:
            module.py_arango_connection = prev

    def test_init_no_settings(self):
        self.app.conf.arangodb_backend_settings = []
        with pytest.raises(ImproperlyConfigured):
            ArangoDbBackend(app=self.app)

    def test_init_settings_is_None(self):
        self.app.conf.arangodb_backend_settings = None
        ArangoDbBackend(app=self.app)

    def test_init_url(self):
        url = None
        expected_database = "celery"
        expected_collection = "celery"
        backend = ArangoDbBackend(app=self.app, url=url)
        assert backend.database == expected_database
        assert backend.collection == expected_collection

        url = "arangodb://localhost:27017/celery-database/celery-collection"
        expected_database = "celery-database"
        expected_collection = "celery-collection"
        backend = ArangoDbBackend(app=self.app, url=url)
        assert backend.database == expected_database
        assert backend.collection == expected_collection

    def test_get_connection_connection_exists(self):
        with patch('pyArango.connection.Connection') as mock_Connection:
            self.backend._connection = sentinel.connection
            connection = self.backend.connection
            assert connection == sentinel.connection
            mock_Connection.assert_not_called()

            expected_connection = mock_Connection()
            mock_Connection.reset_mock()  # So the assert_called_once below is accurate.
            self.backend._connection = None
            connection = self.backend.connection
            assert connection == expected_connection
            mock_Connection.assert_called_once()

    def test_get(self):
        self.backend._connection = MagicMock(spec=["__getitem__"])

        assert self.backend.get(None) is None
        self.backend.db.AQLQuery.assert_not_called()

        assert self.backend.get(sentinel.task_id) is None
        self.backend.db.AQLQuery.assert_called_once_with(
            "RETURN DOCUMENT(@@collection, @key).task",
            rawResults=True,
            bindVars={
                "@collection": self.backend.collection,
                "key": sentinel.task_id,
            },
        )

        self.backend.get = Mock(return_value=sentinel.retval)
        assert self.backend.get(sentinel.task_id) == sentinel.retval
        self.backend.get.assert_called_once_with(sentinel.task_id)

    def test_set(self):
        self.backend._connection = MagicMock(spec=["__getitem__"])

        assert self.backend.set(sentinel.key, sentinel.value) is None
        self.backend.db.AQLQuery.assert_called_once_with(
            """
            UPSERT {_key: @key}
            INSERT {_key: @key, task: @value}
            UPDATE {task: @value} IN @@collection
            """,
            bindVars={
                "@collection": self.backend.collection,
                "key": sentinel.key,
                "value": sentinel.value,
            },
        )

    def test_mget(self):
        self.backend._connection = MagicMock(spec=["__getitem__"])

        result = list(self.backend.mget(None))
        expected_result = []
        assert result == expected_result
        self.backend.db.AQLQuery.assert_not_called()

        Query = MagicMock(spec=pyArango.query.Query)
        query = Query()
        query.nextBatch = MagicMock(side_effect=StopIteration())
        self.backend.db.AQLQuery = Mock(return_value=query)

        keys = [sentinel.task_id_0, sentinel.task_id_1]
        result = list(self.backend.mget(keys))
        expected_result = []
        assert result == expected_result
        self.backend.db.AQLQuery.assert_called_once_with(
            "FOR k IN @keys RETURN DOCUMENT(@@collection, k).task",
            rawResults=True,
            bindVars={
                "@collection": self.backend.collection,
                "keys": keys,
            },
        )

        values = [sentinel.value_0, sentinel.value_1]
        query.__iter__.return_value = iter([sentinel.value_0, sentinel.value_1])
        result = list(self.backend.mget(keys))
        expected_result = values
        assert result == expected_result

    def test_delete(self):
        self.backend._connection = MagicMock(spec=["__getitem__"])

        assert self.backend.delete(None) is None
        self.backend.db.AQLQuery.assert_not_called()

        assert self.backend.delete(sentinel.task_id) is None
        self.backend.db.AQLQuery.assert_called_once_with(
            "REMOVE {_key: @key} IN @@collection",
            bindVars={
                "@collection": self.backend.collection,
                "key": sentinel.task_id,
            },
        )

    def test_config_params(self):
        self.app.conf.arangodb_backend_settings = {
            'host': 'test.arangodb.com',
            'port': '8529',
            'username': 'johndoe',
            'password': 'mysecret',
            'database': 'celery_database',
            'collection': 'celery_collection',
            'http_protocol': 'https',
            'verify': True
        }
        x = ArangoDbBackend(app=self.app)
        assert x.host == 'test.arangodb.com'
        assert x.port == 8529
        assert x.username == 'johndoe'
        assert x.password == 'mysecret'
        assert x.database == 'celery_database'
        assert x.collection == 'celery_collection'
        assert x.http_protocol == 'https'
        assert x.arangodb_url == 'https://test.arangodb.com:8529'
        assert x.verify is True

    def test_backend_by_url(
        self, url="arangodb://username:password@host:port/database/collection"
    ):
        from celery.backends.arangodb import ArangoDbBackend
        backend, url_ = backends.by_url(url, self.app.loader)
        assert backend is ArangoDbBackend
        assert url_ == url

    def test_backend_params_by_url(self):
        url = (
            "arangodb://johndoe:mysecret@test.arangodb.com:8529/"
            "celery_database/celery_collection"
        )
        with self.Celery(backend=url) as app:
            x = app.backend
            assert x.host == 'test.arangodb.com'
            assert x.port == 8529
            assert x.username == 'johndoe'
            assert x.password == 'mysecret'
            assert x.database == 'celery_database'
            assert x.collection == 'celery_collection'
            assert x.http_protocol == 'http'
            assert x.arangodb_url == 'http://test.arangodb.com:8529'
            assert x.verify is False

    def test_backend_cleanup(self):
        self.backend._connection = MagicMock(spec=["__getitem__"])

        self.backend.expires = None
        self.backend.cleanup()
        self.backend.db.AQLQuery.assert_not_called()

        self.backend.expires = 0
        self.backend.cleanup()
        self.backend.db.AQLQuery.assert_not_called()

        now = datetime.datetime.utcnow()
        self.backend.app.now = Mock(return_value=now)
        self.backend.expires = 86400
        expected_checkpoint = (now - self.backend.expires_delta).isoformat()
        self.backend.cleanup()
        self.backend.db.AQLQuery.assert_called_once_with(
            """
            FOR record IN @@collection
                FILTER record.task.date_done < @checkpoint
                REMOVE record IN @@collection
            """,
            bindVars={
                "@collection": self.backend.collection,
                "checkpoint": expected_checkpoint,
            },
        )

"""Tests for the ArangoDb."""
import datetime
from unittest.mock import MagicMock, Mock, patch, sentinel

import pytest

from celery.app import backends
from celery.backends import arangodb as module
from celery.backends.arangodb import ArangoDbBackend
from celery.exceptions import ImproperlyConfigured

try:
    import pyArango
except ImportError:
    pyArango = None

pytest.importorskip('pyArango')


class test_ArangoDbBackend:

    def setup_method(self):
        self.backend = ArangoDbBackend(app=self.app)

    def test_init_no_arangodb(self):
        prev, module.py_arango_connection = module.py_arango_connection, None
        try:
            with pytest.raises(ImproperlyConfigured):
                ArangoDbBackend(app=self.app)
        finally:
            module.py_arango_connection = prev

    def test_init_no_settings(self):
        self.app.conf.arangodb_backend_settings = []
        with pytest.raises(ImproperlyConfigured):
            ArangoDbBackend(app=self.app)

    def test_init_settings_is_None(self):
        self.app.conf.arangodb_backend_settings = None
        ArangoDbBackend(app=self.app)

    def test_init_url(self):
        url = None
        expected_database = "celery"
        expected_collection = "celery"
        backend = ArangoDbBackend(app=self.app, url=url)
        assert backend.database == expected_database
        assert backend.collection == expected_collection

        url = "arangodb://localhost:27017/celery-database/celery-collection"
        expected_database = "celery-database"
        expected_collection = "celery-collection"
        backend = ArangoDbBackend(app=self.app, url=url)
        assert backend.database == expected_database
        assert backend.collection == expected_collection

    def test_get_connection_connection_exists(self):
        with patch('pyArango.connection.Connection') as mock_Connection:
            self.backend._connection = sentinel.connection
            connection = self.backend.connection
            assert connection == sentinel.connection
            mock_Connection.assert_not_called()

            expected_connection = mock_Connection()
            mock_Connection.reset_mock()  # So the assert_called_once below is accurate.
            self.backend._connection = None
            connection = self.backend.connection
            assert connection == expected_connection
            mock_Connection.assert_called_once()

    def test_get(self):
        self.backend._connection = MagicMock(spec=["__getitem__"])

        assert self.backend.get(None) is None
        self.backend.db.AQLQuery.assert_not_called()

        assert self.backend.get(sentinel.task_id) is None
        self.backend.db.AQLQuery.assert_called_once_with(
            "RETURN DOCUMENT(@@collection, @key).task",
            rawResults=True,
            bindVars={
                "@collection": self.backend.collection,
                "key": sentinel.task_id,
            },
        )

        self.backend.get = Mock(return_value=sentinel.retval)
        assert self.backend.get(sentinel.task_id) == sentinel.retval
        self.backend.get.assert_called_once_with(sentinel.task_id)

    def test_set(self):
        self.backend._connection = MagicMock(spec=["__getitem__"])

        assert self.backend.set(sentinel.key, sentinel.value) is None
        self.backend.db.AQLQuery.assert_called_once_with(
            """
            UPSERT {_key: @key}
            INSERT {_key: @key, task: @value}
            UPDATE {task: @value} IN @@collection
            """,
            bindVars={
                "@collection": self.backend.collection,
                "key": sentinel.key,
                "value": sentinel.value,
            },
        )

    def test_mget(self):
        self.backend._connection = MagicMock(spec=["__getitem__"])

        result = list(self.backend.mget(None))
        expected_result = []
        assert result == expected_result
        self.backend.db.AQLQuery.assert_not_called()

        Query = MagicMock(spec=pyArango.query.Query)
        query = Query()
        query.nextBatch = MagicMock(side_effect=StopIteration())
        self.backend.db.AQLQuery = Mock(return_value=query)

        keys = [sentinel.task_id_0, sentinel.task_id_1]
        result = list(self.backend.mget(keys))
        expected_result = []
        assert result == expected_result
        self.backend.db.AQLQuery.assert_called_once_with(
            "FOR k IN @keys RETURN DOCUMENT(@@collection, k).task",
            rawResults=True,
            bindVars={
                "@collection": self.backend.collection,
                "keys": keys,
            },
        )

        values = [sentinel.value_0, sentinel.value_1]
        query.__iter__.return_value = iter([sentinel.value_0, sentinel.value_1])
        result = list(self.backend.mget(keys))
        expected_result = values
        assert result == expected_result

    def test_delete(self):
        self.backend._connection = MagicMock(spec=["__getitem__"])

        assert self.backend.delete(None) is None
        self.backend.db.AQLQuery.assert_not_called()

        assert self.backend.delete(sentinel.task_id) is None
        self.backend.db.AQLQuery.assert_called_once_with(
            "REMOVE {_key: @key} IN @@collection",
            bindVars={
                "@collection": self.backend.collection,
                "key": sentinel.task_id,
            },
        )

    def test_config_params(self):
        self.app.conf.arangodb_backend_settings = {
            'host': 'test.arangodb.com',
            'port': '8529',
            'username': 'johndoe',
            'password': 'mysecret',
            'database': 'celery_database',
            'collection': 'celery_collection',
            'http_protocol': 'https',
            'verify': True
        }
        x = ArangoDbBackend(app=self.app)
        assert x.host == 'test.arangodb.com'
        assert x.port == 8529
        assert x.username == 'johndoe'
        assert x.password == 'mysecret'
        assert x.database == 'celery_database'
        assert x.collection == 'celery_collection'
        assert x.http_protocol == 'https'
        assert x.arangodb_url == 'https://test.arangodb.com:8529'
        assert x.verify is True

    def test_backend_by_url(
        self, url="arangodb://username:password@host:port/database/collection"
    ):
        from celery.backends.arangodb import ArangoDbBackend
        backend, url_ = backends.by_url(url, self.app.loader)
        assert backend is ArangoDbBackend
        assert url_ == url

    def test_backend_params_by_url(self):
        url = (
            "arangodb://johndoe:mysecret@test.arangodb.com:8529/"
            "celery_database/celery_collection"
        )
        with self.Celery(backend=url) as app:
            x = app.backend
            assert x.host == 'test.arangodb.com'
            assert x.port == 8529
            assert x.username == 'johndoe'
            assert x.password == 'mysecret'
            assert x.database == 'celery_database'
            assert x.collection == 'celery_collection'
            assert x.http_protocol == 'http'
            assert x.arangodb_url == 'http://test.arangodb.com:8529'
            assert x.verify is False

    def test_backend_cleanup(self):
        self.backend._connection = MagicMock(spec=["__getitem__"])

        self.backend.expires = None
        self.backend.cleanup()
        self.backend.db.AQLQuery.assert_not_called()

        self.backend.expires = 0
        self.backend.cleanup()
        self.backend.db.AQLQuery.assert_not_called()

        now = datetime.datetime.utcnow()
        self.backend.app.now = Mock(return_value=now)
        self.backend.expires = 86400
        expected_checkpoint = (now - self.backend.expires_delta).isoformat()
        self.backend.cleanup()
        self.backend.db.AQLQuery.assert_called_once_with(
            """
            FOR record IN @@collection
                FILTER record.task.date_done < @checkpoint
                REMOVE record IN @@collection
            """,
            bindVars={
                "@collection": self.backend.collection,
                "checkpoint": expected_checkpoint,
            },
        )
