feat: keep exercises as separate files, include them to Markdown

Author: honzajavorek

sources/academy/webscraping/scraping_basics_python/04_downloading_html.md

@@ -5,8 +5,9 @@ description: Lesson about building a Python application for watching prices. Usi
 slug: /scraping-basics-python/downloading-html
 ---
 
-import TestedExercise from '@site/src/components/TestedExercise';
+import CodeBlock from '@theme/CodeBlock';
 import Exercises from '../scraping_basics/_exercises.mdx';
+import LegoExercise from '!!raw-loader!roa-loader!./exercises/scrape_lego.py';
 
 **In this lesson we'll start building a Python application for watching prices. As a first step, we'll use the HTTPX library to download HTML code of a product listing page.**
 
@@ -140,35 +141,17 @@ Letting our program visibly crash on error is enough for our purposes. Now, let'
 
 <Exercises />
 
-### Scrape AliExpress
+### Scrape LEGO
 
-Download HTML of a product listing page, but this time from a real world e-commerce website. For example this page with AliExpress search results:
+Download HTML of a product listing page, but this time from a real world e-commerce website. For example this page with LEGO search results:
 
 ```text
-https://www.aliexpress.com/w/wholesale-darth-vader.html
+https://www.lego.com/themes/star-wars
 ```
 
 <details>
   <summary>Solution</summary>
-
-  <TestedExercise>
-    ```py
-    import httpx
-
-    url = "https://www.aliexpress.com/w/wholesale-darth-vader.html"
-    response = httpx.get(url)
-    response.raise_for_status()
-    print(response.text)
-    ```
-
-    ```bats
-    @test "outputs the HTML with darth vader products" {
-      run uv python exercise.py
-      assert_output --partial 'Need more help to find the most popular darth vader?'
-    }
-    ```
-  </TestedExercise>
-
+  <CodeBlock language="py">{LegoExercise.code}</CodeBlock>
 </details>
 
 ### Save downloaded HTML as a file

sources/academy/webscraping/scraping_basics_python/exercises/scrape_lego.py

@@ -0,0 +1,6 @@
+import httpx
+
+url = "https://www.lego.com/themes/star-wars"
+response = httpx.get(url)
+response.raise_for_status()
+print(response.text)

sources/academy/webscraping/scraping_basics_python/exercises/test.bats

@@ -0,0 +1,8 @@
+setup() {
+  DIR=sources/academy/webscraping/scraping_basics_python/exercises
+}
+
+@test "outputs the HTML with Star Wars products" {
+  run uv run --with httpx python "$DIR/scrape_lego.py"
+  [[ "$output" == *"Millennium Falcon"* ]]
+}