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docs/mongo-ops/wiki/07_testing_example/index.html
Vishesh 'ironeagle' Bangotra 49a00351bb docs: collect mongo-ops lib (mkdocstrings) + wiki into separate site subpaths, fix mcp server name, expose port 8007
- mongo-ops now serves /mongo-ops/wiki/ and /mongo-ops/lib/ independently
- add mongo-ops MCP bundle under mcp/mongo-ops
- fix copy-paste mcp server (jwtlib -> mongo_ops) in config.yml
- .drone.yml/Dockerfile: publish port 8007 for mongo-ops MCP
2026-09-14 22:33:34 +05:30

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<h1 id="testing-example">Testing Example</h1>
<p>A zero-MongoDB unit-test quickstart. The full guide is <a href="../03_use_cases/14_testing_guide/">use case 14</a>.</p>
<hr />
<h2 id="mock-based-quickstart">🚀 Mock-Based Quickstart</h2>
<p>Patch the connection manager and stub the collection — no network, no docker.</p>
<div class="language-python highlight"><span class="filename">Python</span><pre><span></span><code><a id="__codelineno-0-1" name="__codelineno-0-1" href="#__codelineno-0-1"></a><span class="kn">import</span><span class="w"> </span><span class="nn">pytest</span>
<a id="__codelineno-0-2" name="__codelineno-0-2" href="#__codelineno-0-2"></a><span class="kn">from</span><span class="w"> </span><span class="nn">unittest.mock</span><span class="w"> </span><span class="kn">import</span> <span class="n">AsyncMock</span><span class="p">,</span> <span class="n">patch</span>
<a id="__codelineno-0-3" name="__codelineno-0-3" href="#__codelineno-0-3"></a>
<a id="__codelineno-0-4" name="__codelineno-0-4" href="#__codelineno-0-4"></a><span class="kn">from</span><span class="w"> </span><span class="nn">bson</span><span class="w"> </span><span class="kn">import</span> <span class="n">ObjectId</span>
<a id="__codelineno-0-5" name="__codelineno-0-5" href="#__codelineno-0-5"></a><span class="kn">from</span><span class="w"> </span><span class="nn">mongo_ops</span><span class="w"> </span><span class="kn">import</span> <span class="n">BaseDocument</span><span class="p">,</span> <span class="n">BaseRepository</span>
<a id="__codelineno-0-6" name="__codelineno-0-6" href="#__codelineno-0-6"></a><span class="kn">from</span><span class="w"> </span><span class="nn">mongo_ops.repository</span><span class="w"> </span><span class="kn">import</span> <span class="n">MongoConnectionManager</span>
<a id="__codelineno-0-7" name="__codelineno-0-7" href="#__codelineno-0-7"></a>
<a id="__codelineno-0-8" name="__codelineno-0-8" href="#__codelineno-0-8"></a>
<a id="__codelineno-0-9" name="__codelineno-0-9" href="#__codelineno-0-9"></a><span class="k">class</span><span class="w"> </span><span class="nc">User</span><span class="p">(</span><span class="n">BaseDocument</span><span class="p">):</span>
<a id="__codelineno-0-10" name="__codelineno-0-10" href="#__codelineno-0-10"></a> <span class="n">username</span><span class="p">:</span> <span class="nb">str</span> <span class="o">=</span> <span class="s2">&quot;&quot;</span>
<a id="__codelineno-0-11" name="__codelineno-0-11" href="#__codelineno-0-11"></a> <span class="n">email</span><span class="p">:</span> <span class="nb">str</span> <span class="o">=</span> <span class="s2">&quot;&quot;</span>
<a id="__codelineno-0-12" name="__codelineno-0-12" href="#__codelineno-0-12"></a>
<a id="__codelineno-0-13" name="__codelineno-0-13" href="#__codelineno-0-13"></a>
<a id="__codelineno-0-14" name="__codelineno-0-14" href="#__codelineno-0-14"></a><span class="k">class</span><span class="w"> </span><span class="nc">UserRepository</span><span class="p">(</span><span class="n">BaseRepository</span><span class="p">[</span><span class="n">User</span><span class="p">]):</span>
<a id="__codelineno-0-15" name="__codelineno-0-15" href="#__codelineno-0-15"></a> <span class="k">def</span><span class="w"> </span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<a id="__codelineno-0-16" name="__codelineno-0-16" href="#__codelineno-0-16"></a> <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="s2">&quot;users&quot;</span><span class="p">,</span> <span class="n">User</span><span class="p">)</span>
<a id="__codelineno-0-17" name="__codelineno-0-17" href="#__codelineno-0-17"></a>
<a id="__codelineno-0-18" name="__codelineno-0-18" href="#__codelineno-0-18"></a>
<a id="__codelineno-0-19" name="__codelineno-0-19" href="#__codelineno-0-19"></a><span class="nd">@pytest</span><span class="o">.</span><span class="n">fixture</span>
<a id="__codelineno-0-20" name="__codelineno-0-20" href="#__codelineno-0-20"></a><span class="k">def</span><span class="w"> </span><span class="nf">repo</span><span class="p">():</span>
<a id="__codelineno-0-21" name="__codelineno-0-21" href="#__codelineno-0-21"></a> <span class="n">mock_collection</span> <span class="o">=</span> <span class="n">AsyncMock</span><span class="p">()</span>
<a id="__codelineno-0-22" name="__codelineno-0-22" href="#__codelineno-0-22"></a> <span class="k">with</span> <span class="n">patch</span><span class="o">.</span><span class="n">object</span><span class="p">(</span><span class="n">MongoConnectionManager</span><span class="p">,</span> <span class="s2">&quot;get_database&quot;</span><span class="p">)</span> <span class="k">as</span> <span class="n">mock_db</span><span class="p">:</span>
<a id="__codelineno-0-23" name="__codelineno-0-23" href="#__codelineno-0-23"></a> <span class="n">mock_db</span><span class="o">.</span><span class="n">return_value</span><span class="o">.</span><span class="fm">__getitem__</span><span class="o">.</span><span class="n">return_value</span> <span class="o">=</span> <span class="n">mock_collection</span>
<a id="__codelineno-0-24" name="__codelineno-0-24" href="#__codelineno-0-24"></a> <span class="n">r</span> <span class="o">=</span> <span class="n">UserRepository</span><span class="p">()</span>
<a id="__codelineno-0-25" name="__codelineno-0-25" href="#__codelineno-0-25"></a> <span class="n">r</span><span class="o">.</span><span class="n">collection</span> <span class="o">=</span> <span class="n">mock_collection</span>
<a id="__codelineno-0-26" name="__codelineno-0-26" href="#__codelineno-0-26"></a> <span class="k">return</span> <span class="n">r</span>
<a id="__codelineno-0-27" name="__codelineno-0-27" href="#__codelineno-0-27"></a>
<a id="__codelineno-0-28" name="__codelineno-0-28" href="#__codelineno-0-28"></a>
<a id="__codelineno-0-29" name="__codelineno-0-29" href="#__codelineno-0-29"></a><span class="nd">@pytest</span><span class="o">.</span><span class="n">mark</span><span class="o">.</span><span class="n">asyncio</span>
<a id="__codelineno-0-30" name="__codelineno-0-30" href="#__codelineno-0-30"></a><span class="k">async</span> <span class="k">def</span><span class="w"> </span><span class="nf">test_create_user</span><span class="p">(</span><span class="n">repo</span><span class="p">):</span>
<a id="__codelineno-0-31" name="__codelineno-0-31" href="#__codelineno-0-31"></a> <span class="n">mock_collection</span> <span class="o">=</span> <span class="n">repo</span><span class="o">.</span><span class="n">collection</span>
<a id="__codelineno-0-32" name="__codelineno-0-32" href="#__codelineno-0-32"></a> <span class="n">oid</span> <span class="o">=</span> <span class="n">ObjectId</span><span class="p">()</span>
<a id="__codelineno-0-33" name="__codelineno-0-33" href="#__codelineno-0-33"></a> <span class="n">mock_collection</span><span class="o">.</span><span class="n">insert_one</span><span class="o">.</span><span class="n">return_value</span><span class="o">.</span><span class="n">inserted_id</span> <span class="o">=</span> <span class="n">oid</span>
<a id="__codelineno-0-34" name="__codelineno-0-34" href="#__codelineno-0-34"></a>
<a id="__codelineno-0-35" name="__codelineno-0-35" href="#__codelineno-0-35"></a> <span class="n">user</span> <span class="o">=</span> <span class="k">await</span> <span class="n">repo</span><span class="o">.</span><span class="n">create</span><span class="p">(</span><span class="n">User</span><span class="p">(</span><span class="n">username</span><span class="o">=</span><span class="s2">&quot;test&quot;</span><span class="p">,</span> <span class="n">email</span><span class="o">=</span><span class="s2">&quot;test@example.com&quot;</span><span class="p">))</span>
<a id="__codelineno-0-36" name="__codelineno-0-36" href="#__codelineno-0-36"></a>
<a id="__codelineno-0-37" name="__codelineno-0-37" href="#__codelineno-0-37"></a> <span class="k">assert</span> <span class="n">user</span><span class="o">.</span><span class="n">id</span> <span class="o">==</span> <span class="n">oid</span>
<a id="__codelineno-0-38" name="__codelineno-0-38" href="#__codelineno-0-38"></a> <span class="k">assert</span> <span class="n">user</span><span class="o">.</span><span class="n">username</span> <span class="o">==</span> <span class="s2">&quot;test&quot;</span>
<a id="__codelineno-0-39" name="__codelineno-0-39" href="#__codelineno-0-39"></a>
<a id="__codelineno-0-40" name="__codelineno-0-40" href="#__codelineno-0-40"></a>
<a id="__codelineno-0-41" name="__codelineno-0-41" href="#__codelineno-0-41"></a><span class="nd">@pytest</span><span class="o">.</span><span class="n">mark</span><span class="o">.</span><span class="n">asyncio</span>
<a id="__codelineno-0-42" name="__codelineno-0-42" href="#__codelineno-0-42"></a><span class="k">async</span> <span class="k">def</span><span class="w"> </span><span class="nf">test_get_by_id</span><span class="p">(</span><span class="n">repo</span><span class="p">):</span>
<a id="__codelineno-0-43" name="__codelineno-0-43" href="#__codelineno-0-43"></a> <span class="n">oid</span> <span class="o">=</span> <span class="n">ObjectId</span><span class="p">()</span>
<a id="__codelineno-0-44" name="__codelineno-0-44" href="#__codelineno-0-44"></a> <span class="n">repo</span><span class="o">.</span><span class="n">collection</span><span class="o">.</span><span class="n">find_one</span><span class="o">.</span><span class="n">return_value</span> <span class="o">=</span> <span class="p">{</span>
<a id="__codelineno-0-45" name="__codelineno-0-45" href="#__codelineno-0-45"></a> <span class="s2">&quot;_id&quot;</span><span class="p">:</span> <span class="n">oid</span><span class="p">,</span>
<a id="__codelineno-0-46" name="__codelineno-0-46" href="#__codelineno-0-46"></a> <span class="s2">&quot;username&quot;</span><span class="p">:</span> <span class="s2">&quot;test&quot;</span><span class="p">,</span>
<a id="__codelineno-0-47" name="__codelineno-0-47" href="#__codelineno-0-47"></a> <span class="s2">&quot;email&quot;</span><span class="p">:</span> <span class="s2">&quot;test@example.com&quot;</span><span class="p">,</span>
<a id="__codelineno-0-48" name="__codelineno-0-48" href="#__codelineno-0-48"></a> <span class="s2">&quot;created_at&quot;</span><span class="p">:</span> <span class="s2">&quot;2024-01-01T00:00:00&quot;</span><span class="p">,</span>
<a id="__codelineno-0-49" name="__codelineno-0-49" href="#__codelineno-0-49"></a> <span class="s2">&quot;updated_at&quot;</span><span class="p">:</span> <span class="s2">&quot;2024-01-01T00:00:00&quot;</span><span class="p">,</span>
<a id="__codelineno-0-50" name="__codelineno-0-50" href="#__codelineno-0-50"></a> <span class="p">}</span>
<a id="__codelineno-0-51" name="__codelineno-0-51" href="#__codelineno-0-51"></a>
<a id="__codelineno-0-52" name="__codelineno-0-52" href="#__codelineno-0-52"></a> <span class="n">fetched</span> <span class="o">=</span> <span class="k">await</span> <span class="n">repo</span><span class="o">.</span><span class="n">get_by_id</span><span class="p">(</span><span class="nb">str</span><span class="p">(</span><span class="n">oid</span><span class="p">))</span>
<a id="__codelineno-0-53" name="__codelineno-0-53" href="#__codelineno-0-53"></a>
<a id="__codelineno-0-54" name="__codelineno-0-54" href="#__codelineno-0-54"></a> <span class="k">assert</span> <span class="n">fetched</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span>
<a id="__codelineno-0-55" name="__codelineno-0-55" href="#__codelineno-0-55"></a> <span class="k">assert</span> <span class="n">fetched</span><span class="o">.</span><span class="n">username</span> <span class="o">==</span> <span class="s2">&quot;test&quot;</span>
</code></pre></div>
<hr />
<h2 id="notes">💡 Notes</h2>
<ul>
<li><code>from mongo_ops.repository import MongoConnectionManager</code> — patch where it is <strong>used</strong> (<code>mongo_ops.repository.MongoConnectionManager</code>), matching the library's own tests.</li>
<li>pytest-asyncio runs as <code>auto</code> mode per <code>pyproject.toml</code>, so <code>@pytest.mark.asyncio</code> works without extra config.</li>
<li>For population, cache, registry, and transaction mockups — see the <a href="../03_use_cases/14_testing_guide/">full testing guide</a>.</li>
</ul>
<hr />
<h2 id="related">Related</h2>
<ul>
<li><a href="../03_use_cases/14_testing_guide/">14 Testing guide</a> · <a href="../04_best_practices/">Best Practices</a></li>
</ul>
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