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| <div class="section" id="mocksignature"> |
| <h1>mocksignature<a class="headerlink" href="#mocksignature" title="Permalink to this headline">¶</a></h1> |
| <div class="admonition note"> |
| <p class="first admonition-title">Note</p> |
| <p class="last"><a class="reference internal" href="helpers.html#auto-speccing"><em>Autospeccing</em></a>, added in mock 0.8, is a more advanced version of |
| <cite>mocksignature</cite> and can be used for many of the same use cases.</p> |
| </div> |
| <p>A problem with using mock objects to replace real objects in your tests is that |
| <a class="reference internal" href="mock.html#mock.Mock" title="mock.Mock"><tt class="xref py py-class docutils literal"><span class="pre">Mock</span></tt></a> can be <em>too</em> flexible. Your code can treat the mock objects in |
| any way and you have to manually check that they were called correctly. If your |
| code calls functions or methods with the wrong number of arguments then mocks |
| don’t complain.</p> |
| <p>The solution to this is <cite>mocksignature</cite>, which creates functions with the |
| same signature as the original, but delegating to a mock. You can interrogate |
| the mock in the usual way to check it has been called with the <em>right</em> |
| arguments, but if it is called with the wrong number of arguments it will |
| raise a <cite>TypeError</cite> in the same way your production code would.</p> |
| <p>Another advantage is that your mocked objects are real functions, which can |
| be useful when your code uses |
| <a class="reference external" href="http://docs.python.org/library/inspect.html">inspect</a> or depends on |
| functions being function objects.</p> |
| <dl class="function"> |
| <dt id="mock.mocksignature"> |
| <tt class="descname">mocksignature</tt><big>(</big><em>func</em>, <em>mock=None</em>, <em>skipfirst=False</em><big>)</big><a class="headerlink" href="#mock.mocksignature" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Create a new function with the same signature as <cite>func</cite> that delegates |
| to <cite>mock</cite>. If <cite>skipfirst</cite> is True the first argument is skipped, useful |
| for methods where <cite>self</cite> needs to be omitted from the new function.</p> |
| <p>If you don’t pass in a <cite>mock</cite> then one will be created for you.</p> |
| <p>Functions returned by <cite>mocksignature</cite> have many of the same attributes |
| and assert methods as a mock object.</p> |
| <p>The mock is set as the <cite>mock</cite> attribute of the returned function for easy |
| access.</p> |
| <p><cite>mocksignature</cite> can also be used with classes. It copies the signature of |
| the <cite>__init__</cite> method.</p> |
| <p>When used with callable objects (instances) it copies the signature of the |
| <cite>__call__</cite> method.</p> |
| </dd></dl> |
| |
| <p><cite>mocksignature</cite> will work out if it is mocking the signature of a method on |
| an instance or a method on a class and do the “right thing” with the <cite>self</cite> |
| argument in both cases.</p> |
| <p>Because of a limitation in the way that arguments are collected by functions |
| created by <cite>mocksignature</cite> they are <em>always</em> passed as positional arguments |
| (including defaults) and not keyword arguments.</p> |
| <div class="section" id="mocksignature-api"> |
| <h2>mocksignature api<a class="headerlink" href="#mocksignature-api" title="Permalink to this headline">¶</a></h2> |
| <p>Although the objects returned by <cite>mocksignature</cite> api are real function objects, |
| they have much of the same api as the <a class="reference internal" href="mock.html#mock.Mock" title="mock.Mock"><tt class="xref py py-class docutils literal"><span class="pre">Mock</span></tt></a> class. This includes the |
| assert methods:</p> |
| <div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="k">def</span> <span class="nf">func</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">,</span> <span class="n">c</span><span class="p">):</span> |
| <span class="gp">... </span> <span class="k">pass</span> |
| <span class="gp">...</span> |
| <span class="gp">>>> </span><span class="n">func2</span> <span class="o">=</span> <span class="n">mocksignature</span><span class="p">(</span><span class="n">func</span><span class="p">)</span> |
| <span class="gp">>>> </span><span class="n">func2</span><span class="o">.</span><span class="n">called</span> |
| <span class="go">False</span> |
| <span class="gp">>>> </span><span class="n">func2</span><span class="o">.</span><span class="n">return_value</span> <span class="o">=</span> <span class="mi">3</span> |
| <span class="gp">>>> </span><span class="n">func2</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">)</span> |
| <span class="go">3</span> |
| <span class="gp">>>> </span><span class="n">func2</span><span class="o">.</span><span class="n">called</span> |
| <span class="go">True</span> |
| <span class="gp">>>> </span><span class="n">func2</span><span class="o">.</span><span class="n">assert_called_once_with</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">)</span> |
| <span class="gp">>>> </span><span class="n">func2</span><span class="o">.</span><span class="n">assert_called_with</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">4</span><span class="p">)</span> |
| <span class="gt">Traceback (most recent call last):</span> |
| <span class="c">...</span> |
| <span class="gr">AssertionError: Expected call</span>: <span class="n">mock(1, 2, 4)</span> |
| <span class="go">Actual call: mock(1, 2, 3)</span> |
| <span class="gp">>>> </span><span class="n">func2</span><span class="o">.</span><span class="n">call_count</span> |
| <span class="go">1</span> |
| <span class="gp">>>> </span><span class="n">func2</span><span class="o">.</span><span class="n">side_effect</span> <span class="o">=</span> <span class="ne">IndexError</span> |
| <span class="gp">>>> </span><span class="n">func2</span><span class="p">(</span><span class="mi">4</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">6</span><span class="p">)</span> |
| <span class="gt">Traceback (most recent call last):</span> |
| <span class="c">...</span> |
| <span class="gr">IndexError</span> |
| </pre></div> |
| </div> |
| <p>The mock object that is being delegated to is available as the <cite>mock</cite> attribute |
| of the function created by <cite>mocksignature</cite>.</p> |
| <div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">func2</span><span class="o">.</span><span class="n">mock</span><span class="o">.</span><span class="n">mock_calls</span> |
| <span class="go">[call(1, 2, 3), call(4, 5, 6)]</span> |
| </pre></div> |
| </div> |
| <p>The methods and attributes available on functions returned by <cite>mocksignature</cite> |
| are:</p> |
| <blockquote> |
| <div><a class="reference internal" href="mock.html#mock.Mock.assert_any_call" title="mock.Mock.assert_any_call"><tt class="xref py py-meth docutils literal"><span class="pre">assert_any_call()</span></tt></a>, <a class="reference internal" href="mock.html#mock.Mock.assert_called_once_with" title="mock.Mock.assert_called_once_with"><tt class="xref py py-meth docutils literal"><span class="pre">assert_called_once_with()</span></tt></a>, |
| <a class="reference internal" href="mock.html#mock.Mock.assert_called_with" title="mock.Mock.assert_called_with"><tt class="xref py py-meth docutils literal"><span class="pre">assert_called_with()</span></tt></a>, <a class="reference internal" href="mock.html#mock.Mock.assert_has_calls" title="mock.Mock.assert_has_calls"><tt class="xref py py-meth docutils literal"><span class="pre">assert_has_calls()</span></tt></a>, |
| <a class="reference internal" href="mock.html#mock.Mock.call_args" title="mock.Mock.call_args"><tt class="xref py py-attr docutils literal"><span class="pre">call_args</span></tt></a>, <a class="reference internal" href="mock.html#mock.Mock.call_args_list" title="mock.Mock.call_args_list"><tt class="xref py py-attr docutils literal"><span class="pre">call_args_list</span></tt></a>, |
| <a class="reference internal" href="mock.html#mock.Mock.call_count" title="mock.Mock.call_count"><tt class="xref py py-attr docutils literal"><span class="pre">call_count</span></tt></a>, <a class="reference internal" href="mock.html#mock.Mock.called" title="mock.Mock.called"><tt class="xref py py-attr docutils literal"><span class="pre">called</span></tt></a>, |
| <a class="reference internal" href="mock.html#mock.Mock.method_calls" title="mock.Mock.method_calls"><tt class="xref py py-attr docutils literal"><span class="pre">method_calls</span></tt></a>, <cite>mock</cite>, <a class="reference internal" href="mock.html#mock.Mock.mock_calls" title="mock.Mock.mock_calls"><tt class="xref py py-attr docutils literal"><span class="pre">mock_calls</span></tt></a>, |
| <a class="reference internal" href="mock.html#mock.Mock.reset_mock" title="mock.Mock.reset_mock"><tt class="xref py py-meth docutils literal"><span class="pre">reset_mock()</span></tt></a>, <a class="reference internal" href="mock.html#mock.Mock.return_value" title="mock.Mock.return_value"><tt class="xref py py-attr docutils literal"><span class="pre">return_value</span></tt></a>, and |
| <a class="reference internal" href="mock.html#mock.Mock.side_effect" title="mock.Mock.side_effect"><tt class="xref py py-attr docutils literal"><span class="pre">side_effect</span></tt></a>.</div></blockquote> |
| </div> |
| <div class="section" id="example-use"> |
| <h2>Example use<a class="headerlink" href="#example-use" title="Permalink to this headline">¶</a></h2> |
| <div class="section" id="basic-use"> |
| <h3>Basic use<a class="headerlink" href="#basic-use" title="Permalink to this headline">¶</a></h3> |
| <div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="k">def</span> <span class="nf">function</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">,</span> <span class="n">c</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span> |
| <span class="gp">... </span> <span class="k">pass</span> |
| <span class="gp">...</span> |
| <span class="gp">>>> </span><span class="n">mock</span> <span class="o">=</span> <span class="n">Mock</span><span class="p">()</span> |
| <span class="gp">>>> </span><span class="n">function</span> <span class="o">=</span> <span class="n">mocksignature</span><span class="p">(</span><span class="n">function</span><span class="p">,</span> <span class="n">mock</span><span class="p">)</span> |
| <span class="gp">>>> </span><span class="n">function</span><span class="p">()</span> |
| <span class="gt">Traceback (most recent call last):</span> |
| <span class="c">...</span> |
| <span class="gr">TypeError</span>: <span class="n"><lambda>() takes at least 2 arguments (0 given)</span> |
| <span class="gp">>>> </span><span class="n">function</span><span class="o">.</span><span class="n">return_value</span> <span class="o">=</span> <span class="s">'some value'</span> |
| <span class="gp">>>> </span><span class="n">function</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="s">'foo'</span><span class="p">)</span> |
| <span class="go">'some value'</span> |
| <span class="gp">>>> </span><span class="n">function</span><span class="o">.</span><span class="n">assert_called_with</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="s">'foo'</span><span class="p">)</span> |
| </pre></div> |
| </div> |
| </div> |
| <div class="section" id="keyword-arguments"> |
| <h3>Keyword arguments<a class="headerlink" href="#keyword-arguments" title="Permalink to this headline">¶</a></h3> |
| <p>Note that arguments to functions created by <cite>mocksignature</cite> are always passed |
| in to the underlying mock by position even when called with keywords:</p> |
| <div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="k">def</span> <span class="nf">function</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">,</span> <span class="n">c</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span> |
| <span class="gp">... </span> <span class="k">pass</span> |
| <span class="gp">...</span> |
| <span class="gp">>>> </span><span class="n">function</span> <span class="o">=</span> <span class="n">mocksignature</span><span class="p">(</span><span class="n">function</span><span class="p">)</span> |
| <span class="gp">>>> </span><span class="n">function</span><span class="o">.</span><span class="n">return_value</span> <span class="o">=</span> <span class="bp">None</span> |
| <span class="gp">>>> </span><span class="n">function</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">)</span> |
| <span class="gp">>>> </span><span class="n">function</span><span class="o">.</span><span class="n">assert_called_with</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="bp">None</span><span class="p">)</span> |
| </pre></div> |
| </div> |
| </div> |
| <div class="section" id="mocking-methods-and-self"> |
| <h3>Mocking methods and self<a class="headerlink" href="#mocking-methods-and-self" title="Permalink to this headline">¶</a></h3> |
| <p>When you use <cite>mocksignature</cite> to replace a method on a class then <cite>self</cite> |
| will be included in the method signature - and you will need to include |
| the instance when you do your asserts.</p> |
| <p>As a curious factor of the way Python (2) wraps methods fetched from a class, |
| we can <em>get</em> the <cite>return_value</cite> from a function set on a class, but we can’t |
| set it. We have to do this through the exposed <cite>mock</cite> attribute instead:</p> |
| <div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="k">class</span> <span class="nc">SomeClass</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span> |
| <span class="gp">... </span> <span class="k">def</span> <span class="nf">method</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">,</span> <span class="n">c</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span> |
| <span class="gp">... </span> <span class="k">pass</span> |
| <span class="gp">...</span> |
| <span class="gp">>>> </span><span class="n">SomeClass</span><span class="o">.</span><span class="n">method</span> <span class="o">=</span> <span class="n">mocksignature</span><span class="p">(</span><span class="n">SomeClass</span><span class="o">.</span><span class="n">method</span><span class="p">)</span> |
| <span class="gp">>>> </span><span class="n">SomeClass</span><span class="o">.</span><span class="n">method</span><span class="o">.</span><span class="n">mock</span><span class="o">.</span><span class="n">return_value</span> <span class="o">=</span> <span class="bp">None</span> |
| <span class="gp">>>> </span><span class="n">instance</span> <span class="o">=</span> <span class="n">SomeClass</span><span class="p">()</span> |
| <span class="gp">>>> </span><span class="n">instance</span><span class="o">.</span><span class="n">method</span><span class="p">()</span> |
| <span class="gt">Traceback (most recent call last):</span> |
| <span class="c">...</span> |
| <span class="gr">TypeError</span>: <span class="n"><lambda>() takes at least 4 arguments (1 given)</span> |
| <span class="gp">>>> </span><span class="n">instance</span><span class="o">.</span><span class="n">method</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">)</span> |
| <span class="gp">>>> </span><span class="n">instance</span><span class="o">.</span><span class="n">method</span><span class="o">.</span><span class="n">assert_called_with</span><span class="p">(</span><span class="n">instance</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">)</span> |
| </pre></div> |
| </div> |
| <p>When you use <cite>mocksignature</cite> on instance methods <cite>self</cite> isn’t included (and we |
| can set the <cite>return_value</cite> etc directly):</p> |
| <div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="k">class</span> <span class="nc">SomeClass</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span> |
| <span class="gp">... </span> <span class="k">def</span> <span class="nf">method</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">,</span> <span class="n">c</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span> |
| <span class="gp">... </span> <span class="k">pass</span> |
| <span class="gp">...</span> |
| <span class="gp">>>> </span><span class="n">instance</span> <span class="o">=</span> <span class="n">SomeClass</span><span class="p">()</span> |
| <span class="gp">>>> </span><span class="n">instance</span><span class="o">.</span><span class="n">method</span> <span class="o">=</span> <span class="n">mocksignature</span><span class="p">(</span><span class="n">instance</span><span class="o">.</span><span class="n">method</span><span class="p">)</span> |
| <span class="gp">>>> </span><span class="n">instance</span><span class="o">.</span><span class="n">method</span><span class="o">.</span><span class="n">return_value</span> <span class="o">=</span> <span class="bp">None</span> |
| <span class="gp">>>> </span><span class="n">instance</span><span class="o">.</span><span class="n">method</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">)</span> |
| <span class="gp">>>> </span><span class="n">instance</span><span class="o">.</span><span class="n">method</span><span class="o">.</span><span class="n">assert_called_with</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">)</span> |
| </pre></div> |
| </div> |
| </div> |
| <div class="section" id="mocksignature-with-classes"> |
| <h3>mocksignature with classes<a class="headerlink" href="#mocksignature-with-classes" title="Permalink to this headline">¶</a></h3> |
| <p>When used with a class <cite>mocksignature</cite> copies the signature of the <cite>__init__</cite> |
| method.</p> |
| <div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="k">class</span> <span class="nc">Something</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span> |
| <span class="gp">... </span> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">foo</span><span class="p">,</span> <span class="n">bar</span><span class="p">):</span> |
| <span class="gp">... </span> <span class="k">pass</span> |
| <span class="gp">...</span> |
| <span class="gp">>>> </span><span class="n">MockSomething</span> <span class="o">=</span> <span class="n">mocksignature</span><span class="p">(</span><span class="n">Something</span><span class="p">)</span> |
| <span class="gp">>>> </span><span class="n">instance</span> <span class="o">=</span> <span class="n">MockSomething</span><span class="p">(</span><span class="mi">10</span><span class="p">,</span> <span class="mi">9</span><span class="p">)</span> |
| <span class="gp">>>> </span><span class="k">assert</span> <span class="n">instance</span> <span class="ow">is</span> <span class="n">MockSomething</span><span class="o">.</span><span class="n">return_value</span> |
| <span class="gp">>>> </span><span class="n">MockSomething</span><span class="o">.</span><span class="n">assert_called_with</span><span class="p">(</span><span class="mi">10</span><span class="p">,</span> <span class="mi">9</span><span class="p">)</span> |
| <span class="gp">>>> </span><span class="n">MockSomething</span><span class="p">()</span> |
| <span class="gt">Traceback (most recent call last):</span> |
| <span class="c">...</span> |
| <span class="gr">TypeError</span>: <span class="n"><lambda>() takes at least 2 arguments (0 given)</span> |
| </pre></div> |
| </div> |
| <p>Because the object returned by <cite>mocksignature</cite> is a function rather than a |
| <cite>Mock</cite> you lose the other capabilities of <cite>Mock</cite>, like dynamic attribute |
| creation.</p> |
| </div> |
| <div class="section" id="mocksignature-with-callable-objects"> |
| <h3>mocksignature with callable objects<a class="headerlink" href="#mocksignature-with-callable-objects" title="Permalink to this headline">¶</a></h3> |
| <p>When used with a callable object <cite>mocksignature</cite> copies the signature of the |
| <cite>__call__</cite> method.</p> |
| <div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="k">class</span> <span class="nc">Something</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span> |
| <span class="gp">... </span> <span class="k">def</span> <span class="nf">__call__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">spam</span><span class="p">,</span> <span class="n">eggs</span><span class="p">):</span> |
| <span class="gp">... </span> <span class="k">pass</span> |
| <span class="gp">...</span> |
| <span class="gp">>>> </span><span class="n">something</span> <span class="o">=</span> <span class="n">Something</span><span class="p">()</span> |
| <span class="gp">>>> </span><span class="n">mock_something</span> <span class="o">=</span> <span class="n">mocksignature</span><span class="p">(</span><span class="n">something</span><span class="p">)</span> |
| <span class="gp">>>> </span><span class="n">result</span> <span class="o">=</span> <span class="n">mock_something</span><span class="p">(</span><span class="mi">10</span><span class="p">,</span> <span class="mi">9</span><span class="p">)</span> |
| <span class="gp">>>> </span><span class="n">mock_something</span><span class="o">.</span><span class="n">assert_called_with</span><span class="p">(</span><span class="mi">10</span><span class="p">,</span> <span class="mi">9</span><span class="p">)</span> |
| <span class="gp">>>> </span><span class="n">mock_something</span><span class="p">()</span> |
| <span class="gt">Traceback (most recent call last):</span> |
| <span class="c">...</span> |
| <span class="gr">TypeError</span>: <span class="n"><lambda>() takes at least 2 arguments (0 given)</span> |
| </pre></div> |
| </div> |
| </div> |
| </div> |
| <div class="section" id="mocksignature-argument-to-patch"> |
| <h2>mocksignature argument to patch<a class="headerlink" href="#mocksignature-argument-to-patch" title="Permalink to this headline">¶</a></h2> |
| <p><cite>mocksignature</cite> is available as a keyword argument to <a class="reference internal" href="patch.html#mock.patch" title="mock.patch"><tt class="xref py py-func docutils literal"><span class="pre">patch()</span></tt></a> or |
| <a class="reference internal" href="patch.html#mock.patch.object" title="mock.patch.object"><tt class="xref py py-func docutils literal"><span class="pre">patch.object()</span></tt></a>. It can be used with functions / methods / classes and |
| callable objects.</p> |
| <div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="k">class</span> <span class="nc">SomeClass</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span> |
| <span class="gp">... </span> <span class="k">def</span> <span class="nf">method</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">,</span> <span class="n">c</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span> |
| <span class="gp">... </span> <span class="k">pass</span> |
| <span class="gp">...</span> |
| <span class="gp">>>> </span><span class="nd">@patch.object</span><span class="p">(</span><span class="n">SomeClass</span><span class="p">,</span> <span class="s">'method'</span><span class="p">,</span> <span class="n">mocksignature</span><span class="o">=</span><span class="bp">True</span><span class="p">)</span> |
| <span class="gp">... </span><span class="k">def</span> <span class="nf">test</span><span class="p">(</span><span class="n">mock_method</span><span class="p">):</span> |
| <span class="gp">... </span> <span class="n">instance</span> <span class="o">=</span> <span class="n">SomeClass</span><span class="p">()</span> |
| <span class="gp">... </span> <span class="n">mock_method</span><span class="o">.</span><span class="n">return_value</span> <span class="o">=</span> <span class="bp">None</span> |
| <span class="gp">... </span> <span class="n">instance</span><span class="o">.</span><span class="n">method</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">)</span> |
| <span class="gp">... </span> <span class="n">mock_method</span><span class="o">.</span><span class="n">assert_called_with</span><span class="p">(</span><span class="n">instance</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="bp">None</span><span class="p">)</span> |
| <span class="gp">...</span> |
| <span class="gp">>>> </span><span class="n">test</span><span class="p">()</span> |
| </pre></div> |
| </div> |
| </div> |
| </div> |
| |
| |
| </div> |
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| <h3><a href="index.html">Table Of Contents</a></h3> |
| <ul> |
| <li><a class="reference internal" href="#">mocksignature</a><ul> |
| <li><a class="reference internal" href="#mocksignature-api">mocksignature api</a></li> |
| <li><a class="reference internal" href="#example-use">Example use</a><ul> |
| <li><a class="reference internal" href="#basic-use">Basic use</a></li> |
| <li><a class="reference internal" href="#keyword-arguments">Keyword arguments</a></li> |
| <li><a class="reference internal" href="#mocking-methods-and-self">Mocking methods and self</a></li> |
| <li><a class="reference internal" href="#mocksignature-with-classes">mocksignature with classes</a></li> |
| <li><a class="reference internal" href="#mocksignature-with-callable-objects">mocksignature with callable objects</a></li> |
| </ul> |
| </li> |
| <li><a class="reference internal" href="#mocksignature-argument-to-patch">mocksignature argument to patch</a></li> |
| </ul> |
| </li> |
| </ul> |
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