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| <h1>Source code for apache_beam.runners.interactive.testing.mock_ipython</h1><div class="highlight"><pre> |
| <span></span><span class="c1">#</span> |
| <span class="c1"># Licensed to the Apache Software Foundation (ASF) under one or more</span> |
| <span class="c1"># contributor license agreements. See the NOTICE file distributed with</span> |
| <span class="c1"># this work for additional information regarding copyright ownership.</span> |
| <span class="c1"># The ASF licenses this file to You under the Apache License, Version 2.0</span> |
| <span class="c1"># (the "License"); you may not use this file except in compliance with</span> |
| <span class="c1"># the License. You may obtain a copy of the License at</span> |
| <span class="c1">#</span> |
| <span class="c1"># http://www.apache.org/licenses/LICENSE-2.0</span> |
| <span class="c1">#</span> |
| <span class="c1"># Unless required by applicable law or agreed to in writing, software</span> |
| <span class="c1"># distributed under the License is distributed on an "AS IS" BASIS,</span> |
| <span class="c1"># WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span> |
| <span class="c1"># See the License for the specific language governing permissions and</span> |
| <span class="c1"># limitations under the License.</span> |
| <span class="c1">#</span> |
| |
| |
| <div class="viewcode-block" id="mock_get_ipython"><a class="viewcode-back" href="../../../../../apache_beam.runners.interactive.testing.mock_ipython.html#apache_beam.runners.interactive.testing.mock_ipython.mock_get_ipython">[docs]</a><span class="k">def</span> <span class="nf">mock_get_ipython</span><span class="p">():</span> |
| <span class="w"> </span><span class="sd">"""Mock an ipython environment w/o setting up real ipython kernel.</span> |
| |
| <span class="sd"> Each entering of get_ipython() invocation will have the prompt increased by</span> |
| <span class="sd"> one. Grouping arbitrary python code into separate cells using `with` clause.</span> |
| |
| <span class="sd"> Examples::</span> |
| |
| <span class="sd"> # Usage, before each test function, prepend:</span> |
| <span class="sd"> @patch('IPython.get_ipython', new_callable=mock_get_ipython)</span> |
| |
| <span class="sd"> # In the test function's signature, add an argument for the patch, e.g.:</span> |
| <span class="sd"> def some_test(self, cell):</span> |
| |
| <span class="sd"> # Group lines of code into a cell using the argument:</span> |
| <span class="sd"> with cell:</span> |
| <span class="sd"> # arbitrary python code</span> |
| <span class="sd"> # ...</span> |
| <span class="sd"> # arbitrary python code</span> |
| |
| <span class="sd"> # Next cell with prompt increased by one:</span> |
| <span class="sd"> with cell: # Auto-incremental</span> |
| <span class="sd"> # arbitrary python code</span> |
| <span class="sd"> # ...</span> |
| <span class="sd"> # arbitrary python code</span> |
| <span class="sd"> """</span> |
| <span class="k">class</span> <span class="nc">MockedGetIpython</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span> |
| <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">_execution_count</span> <span class="o">=</span> <span class="mi">0</span> |
| <span class="c1"># Mock as if the kernel is connected to a notebook frontend.</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">config</span> <span class="o">=</span> <span class="p">{</span><span class="s1">'IPKernelApp'</span><span class="p">:</span> <span class="s1">'mock'</span><span class="p">}</span> |
| |
| <span class="k">def</span> <span class="fm">__call__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> |
| <span class="k">return</span> <span class="bp">self</span> |
| |
| <span class="nd">@property</span> |
| <span class="k">def</span> <span class="nf">execution_count</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> |
| <span class="w"> </span><span class="sd">"""Execution count always starts from 1 and is constant within a cell."""</span> |
| <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_execution_count</span> |
| |
| <span class="k">def</span> <span class="fm">__enter__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> |
| <span class="w"> </span><span class="sd">"""Marks entering of a cell/prompt."""</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">_execution_count</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_execution_count</span> <span class="o">+</span> <span class="mi">1</span> |
| |
| <span class="k">def</span> <span class="fm">__exit__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">exc_type</span><span class="p">,</span> <span class="n">exc_value</span><span class="p">,</span> <span class="n">traceback</span><span class="p">):</span> |
| <span class="w"> </span><span class="sd">"""Marks exiting of a cell/prompt."""</span> |
| <span class="k">pass</span> |
| |
| <span class="k">return</span> <span class="n">MockedGetIpython</span><span class="p">()</span></div> |
| </pre></div> |
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