edit testing and add numerizer

Author: khuyentran1401

Chapter5/natural_language_processing.ipynb

@@ -0,0 +1,9 @@
+from freezegun import freeze_time
+import datetime 
+
+def get_day_of_week():
+    return datetime.datetime.now().weekday()
+
+@freeze_time("2024-10-13")
+def test_get_day_of_week():
+    assert get_day_of_week() == 6

Chapter5/test_freezegun.py

@@ -2308,7 +2308,7 @@
    "id": "915e9960",
    "metadata": {},
    "source": [
-    "### FreezeGun: Freeze Dynamic Time in Unit Testing "
+    "### FreezeGun: Freezing Time for Reliable Python Testing"
    ]
   },
   {
@@ -2325,21 +2325,37 @@
     "!pip install freezegun"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "id": "d979b680-a898-402b-b92d-412cfbb3572c",
+   "metadata": {},
+   "source": [
+    "Testing time-dependent functions can be challenging and unreliable as the results may vary based on when the test is executed. This results in flaky tests that pass or fail inconsistently."
+   ]
+  },
   {
    "attachments": {},
    "cell_type": "markdown",
    "id": "85ef39bd",
    "metadata": {},
    "source": [
-    "Unit tests require static input, but time is dynamic and constantly changing. With FreezeGun, you can freeze time to a specific point, ensuring accurate verification of the tested features."
+    "With FreezeGun, you can freeze time at a particular point, ensuring your tests always run with the same date context."
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 6,
    "id": "62213cd9",
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Overwriting test_freezegun.py\n"
+     ]
+    }
+   ],
    "source": [
     "%%writefile test_freezegun.py\n",
     "from freezegun import freeze_time\n",
@@ -2348,9 +2364,9 @@
     "def get_day_of_week():\n",
     "    return datetime.datetime.now().weekday()\n",
     "\n",
-    "@freeze_time(\"2023-06-13\")\n",
+    "@freeze_time(\"2024-10-13\")\n",
     "def test_get_day_of_week():\n",
-    "    assert get_day_of_week() == 1\n"
+    "    assert get_day_of_week() == 6\n"
    ]
   },
   {
@@ -2366,7 +2382,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 16,
+   "execution_count": 7,
    "id": "376870d5",
    "metadata": {
     "tags": [
@@ -2379,21 +2395,32 @@
      "output_type": "stream",
      "text": [
       "\u001b[1m============================= test session starts ==============================\u001b[0m\n",
-      "platform darwin -- Python 3.9.6, pytest-7.2.1, pluggy-1.0.0\n",
+      "platform darwin -- Python 3.11.6, pytest-8.2.0, pluggy-1.5.0\n",
+      "Fugue tests will be initialized with options:\n",
       "rootdir: /Users/khuyentran/book/Efficient_Python_tricks_and_tools_for_data_scientists/Chapter5\n",
-      "plugins: anyio-3.6.2\n",
+      "plugins: anyio-4.0.0, dash-2.17.1, fugue-0.9.1, Faker-19.13.0, returns-0.22.0\n",
       "collected 1 item                                                               \u001b[0m\n",
       "\n",
       "test_freezegun.py \u001b[32m.\u001b[0m\u001b[32m                                                      [100%]\u001b[0m\n",
       "\n",
-      "\u001b[32m============================== \u001b[32m\u001b[1m1 passed\u001b[0m\u001b[32m in 0.03s\u001b[0m\u001b[32m ===============================\u001b[0m\n"
+      "\u001b[32m============================== \u001b[32m\u001b[1m1 passed\u001b[0m\u001b[32m in 0.07s\u001b[0m\u001b[32m ===============================\u001b[0m\n"
      ]
     }
    ],
    "source": [
     "!pytest test_freezegun.py"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "id": "9274e666-b811-4997-9764-117ec5257f90",
+   "metadata": {},
+   "source": [
+    "This code uses `get_day_of_week()` to return the current weekday (0-6). The `@freeze_time(\"2024-10-13\")` decorator sets a fixed date (Sunday, October 13, 2024).\n",
+    "\n",
+    "The test calls `get_day_of_week()` and checks if it returns 6 (Sunday). This test will consistently pass because FreezeGun ensures `datetime.datetime.now()` always returns the specified frozen date."
+   ]
+  },
   {
    "attachments": {},
    "cell_type": "markdown",

Chapter5/testing.ipynb

@@ -531,7 +531,7 @@ <h2> Contents </h2>
 <li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#pytest-steps-share-data-between-tests">6.13.16. pytest-steps: Share Data Between Tests</a></li>
 <li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#pytest-picked-run-the-tests-related-to-the-unstaged-files-in-git">6.13.17. pytest-picked: Run the Tests Related to the Unstaged Files in Git</a></li>
 <li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#efficient-testing-of-python-class-with-setup-method">6.13.18. Efficient Testing of Python Class with setUp Method</a></li>
-<li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#freezegun-freeze-dynamic-time-in-unit-testing">6.13.19. FreezeGun: Freeze Dynamic Time in Unit Testing</a></li>
+<li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#freezegun-freezing-time-for-reliable-python-testing">6.13.19. FreezeGun: Freezing Time for Reliable Python Testing</a></li>
 <li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#simulate-external-services-in-testing-with-mock-objects">6.13.20. Simulate External Services in Testing with Mock Objects</a></li>
 <li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#pytest-mock-vs-unittest-mock-simplifying-mocking-in-python-tests">6.13.21. pytest-mock vs unittest.mock: Simplifying Mocking in Python Tests</a></li>
 <li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#tmp-path-create-a-temporary-directory-for-testing">6.13.22. tmp_path: Create a Temporary Directory for Testing</a></li>
@@ -1758,8 +1758,8 @@ <h2><span class="section-number">6.13.18. </span>Efficient Testing of Python Cla
 </div>
 </div>
 </section>
-<section id="freezegun-freeze-dynamic-time-in-unit-testing">
-<h2><span class="section-number">6.13.19. </span>FreezeGun: Freeze Dynamic Time in Unit Testing<a class="headerlink" href="#freezegun-freeze-dynamic-time-in-unit-testing" title="Permalink to this heading">#</a></h2>
+<section id="freezegun-freezing-time-for-reliable-python-testing">
+<h2><span class="section-number">6.13.19. </span>FreezeGun: Freezing Time for Reliable Python Testing<a class="headerlink" href="#freezegun-freezing-time-for-reliable-python-testing" title="Permalink to this heading">#</a></h2>
 <div class="cell tag_hide-cell docutils container">
 <details class="hide above-input">
 <summary aria-label="Toggle hidden content">
@@ -1773,7 +1773,8 @@ <h2><span class="section-number">6.13.19. </span>FreezeGun: Freeze Dynamic Time
 </div>
 </details>
 </div>
-<p>Unit tests require static input, but time is dynamic and constantly changing. With FreezeGun, you can freeze time to a specific point, ensuring accurate verification of the tested features.</p>
+<p>Testing time-dependent functions can be challenging and unreliable as the results may vary based on when the test is executed. This results in flaky tests that pass or fail inconsistently.</p>
+<p>With FreezeGun, you can freeze time at a particular point, ensuring your tests always run with the same date context.</p>
 <div class="cell docutils container">
 <div class="cell_input docutils container">
 <div class="highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="o">%%writefile</span> test_freezegun.py
@@ -1783,9 +1784,14 @@ <h2><span class="section-number">6.13.19. </span>FreezeGun: Freeze Dynamic Time
 <span class="k">def</span> <span class="nf">get_day_of_week</span><span class="p">():</span>
     <span class="k">return</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="o">.</span><span class="n">now</span><span class="p">()</span><span class="o">.</span><span class="n">weekday</span><span class="p">()</span>
 
-<span class="nd">@freeze_time</span><span class="p">(</span><span class="s2">&quot;2023-06-13&quot;</span><span class="p">)</span>
+<span class="nd">@freeze_time</span><span class="p">(</span><span class="s2">&quot;2024-10-13&quot;</span><span class="p">)</span>
 <span class="k">def</span> <span class="nf">test_get_day_of_week</span><span class="p">():</span>
-    <span class="k">assert</span> <span class="n">get_day_of_week</span><span class="p">()</span> <span class="o">==</span> <span class="mi">1</span>
+    <span class="k">assert</span> <span class="n">get_day_of_week</span><span class="p">()</span> <span class="o">==</span> <span class="mi">6</span>
+</pre></div>
+</div>
+</div>
+<div class="cell_output docutils container">
+<div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span>Overwriting test_freezegun.py
 </pre></div>
 </div>
 </div>
@@ -1796,18 +1802,21 @@ <h2><span class="section-number">6.13.19. </span>FreezeGun: Freeze Dynamic Time
 <div class="cell tag_remove-input docutils container">
 <div class="cell_output docutils container">
 <div class="output stream highlight-myst-ansi notranslate"><div class="highlight"><pre><span></span><span class=" -Color -Color-Bold">============================= test session starts ==============================</span>
-platform darwin -- Python 3.9.6, pytest-7.2.1, pluggy-1.0.0
+platform darwin -- Python 3.11.6, pytest-8.2.0, pluggy-1.5.0
+Fugue tests will be initialized with options:
 rootdir: /Users/khuyentran/book/Efficient_Python_tricks_and_tools_for_data_scientists/Chapter5
-plugins: anyio-3.6.2
+plugins: anyio-4.0.0, dash-2.17.1, fugue-0.9.1, Faker-19.13.0, returns-0.22.0
 collected 1 item                                                               
 
 test_freezegun.py <span class=" -Color -Color-Green">.                                                      [100%]</span>
 
-<span class=" -Color -Color-Green">============================== </span><span class=" -Color -Color-Bold -Color-Bold-Green">1 passed</span><span class=" -Color -Color-Green"> in 0.03s ===============================</span>
+<span class=" -Color -Color-Green">============================== </span><span class=" -Color -Color-Bold -Color-Bold-Green">1 passed</span><span class=" -Color -Color-Green"> in 0.07s ===============================</span>
 </pre></div>
 </div>
 </div>
 </div>
+<p>This code uses <code class="docutils literal notranslate"><span class="pre">get_day_of_week()</span></code> to return the current weekday (0-6). The <code class="docutils literal notranslate"><span class="pre">&#64;freeze_time(&quot;2024-10-13&quot;)</span></code> decorator sets a fixed date (Sunday, October 13, 2024).</p>
+<p>The test calls <code class="docutils literal notranslate"><span class="pre">get_day_of_week()</span></code> and checks if it returns 6 (Sunday). This test will consistently pass because FreezeGun ensures <code class="docutils literal notranslate"><span class="pre">datetime.datetime.now()</span></code> always returns the specified frozen date.</p>
 <p><a class="reference external" href="https://github.com/spulec/freezegun">Link to FreezeGun</a>.</p>
 </section>
 <section id="simulate-external-services-in-testing-with-mock-objects">
@@ -3235,7 +3244,7 @@ <h2><span class="section-number">6.13.32. </span>DeepEval: Unit Testing for Your
 <li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#pytest-steps-share-data-between-tests">6.13.16. pytest-steps: Share Data Between Tests</a></li>
 <li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#pytest-picked-run-the-tests-related-to-the-unstaged-files-in-git">6.13.17. pytest-picked: Run the Tests Related to the Unstaged Files in Git</a></li>
 <li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#efficient-testing-of-python-class-with-setup-method">6.13.18. Efficient Testing of Python Class with setUp Method</a></li>
-<li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#freezegun-freeze-dynamic-time-in-unit-testing">6.13.19. FreezeGun: Freeze Dynamic Time in Unit Testing</a></li>
+<li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#freezegun-freezing-time-for-reliable-python-testing">6.13.19. FreezeGun: Freezing Time for Reliable Python Testing</a></li>
 <li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#simulate-external-services-in-testing-with-mock-objects">6.13.20. Simulate External Services in Testing with Mock Objects</a></li>
 <li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#pytest-mock-vs-unittest-mock-simplifying-mocking-in-python-tests">6.13.21. pytest-mock vs unittest.mock: Simplifying Mocking in Python Tests</a></li>
 <li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#tmp-path-create-a-temporary-directory-for-testing">6.13.22. tmp_path: Create a Temporary Directory for Testing</a></li>

docs/Chapter5/natural_language_processing.html

@@ -482,7 +482,7 @@ <h2> Contents </h2>
             <nav aria-label="Page">
                 <ul class="visible nav section-nav flex-column">
 <li class="toc-h1 nav-item toc-entry"><a class="reference internal nav-link" href="#">What Should You Expect From This Book?</a></li>
-<li class="toc-h1 nav-item toc-entry"><a class="reference internal nav-link" href="#about-this-book">About This Book</a></li>
+<li class="toc-h1 nav-item toc-entry"><a class="reference internal nav-link" href="#printable-pdf-guide">Printable PDF Guide</a></li>
 <li class="toc-h1 nav-item toc-entry"><a class="reference internal nav-link" href="#about-the-author">About The Author</a></li>
 </ul>
 
@@ -519,9 +519,9 @@ <h1>What Should You Expect From This Book?<a class="headerlink" href="#what-shou
 <p>This book expects you to have some basic knowledge of Python and data science.</p>
 <p>You should also expect bite-size code snippets for each section. This will allow you to obtain multiple pieces of knowledge in fewer than one minute. I included the link to the resources for every tools introduced in case you want to explore them further.</p>
 </section>
-<section id="about-this-book">
-<h1>About This Book<a class="headerlink" href="#about-this-book" title="Permalink to this heading">#</a></h1>
-<p>This book includes more than 800 tips and tools I have shared daily on my website, <a class="reference external" href="https://codecut.ai/?utm_source=github&amp;utm_medium=efficient_python_tricks&amp;utm_campaign=about_this_book">CodeCut</a>. If you want to get the updated of new tips on your mailbox, you can subscribe to <a class="reference external" href="https://codecut.ai/daily-tips-form/?utm_source=github&amp;utm_medium=efficient_python_tricks&amp;utm_campaign=subscribe_to_newsletter">my newsletter</a>.</p>
+<section id="printable-pdf-guide">
+<h1>Printable PDF Guide<a class="headerlink" href="#printable-pdf-guide" title="Permalink to this heading">#</a></h1>
+<p>For a printer-friendly version of the tools mentioned in this book, sign up for <a class="reference external" href="https://codecut.ai/data-scientist-toolkit/?utm_source=github&amp;utm_medium=defficient_python_tricks&amp;utm_campaign=free_pdf">CodeCut’s free PDF guide</a>. This comprehensive 264-page document covers over 100 essential data science tools, providing you with a valuable reference that you can print and keep at your desk.</p>
 </section>
 <section id="about-the-author">
 <h1>About The Author<a class="headerlink" href="#about-the-author" title="Permalink to this heading">#</a></h1>
@@ -586,7 +586,7 @@ <h1>About The Author<a class="headerlink" href="#about-the-author" title="Permal
   <nav class="bd-toc-nav page-toc">
     <ul class="visible nav section-nav flex-column">
 <li class="toc-h1 nav-item toc-entry"><a class="reference internal nav-link" href="#">What Should You Expect From This Book?</a></li>
-<li class="toc-h1 nav-item toc-entry"><a class="reference internal nav-link" href="#about-this-book">About This Book</a></li>
+<li class="toc-h1 nav-item toc-entry"><a class="reference internal nav-link" href="#printable-pdf-guide">Printable PDF Guide</a></li>
 <li class="toc-h1 nav-item toc-entry"><a class="reference internal nav-link" href="#about-the-author">About The Author</a></li>
 </ul>