<div class="termy">

```console
// Here we don't set the env var yet
$ python main.py

// As we didn't set the env var, we get the default value

Hello World from Python

// But if we create an environment variable first
$ export MY_NAME="Wade Wilson"

// And then call the program again
$ python main.py

// Now it can read the environment variable

Hello Wade Wilson from Python
```

import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;
import static org.junit.jupiter.api.Assertions.fail;

class DefaultMavenProjectBuilderTest extends AbstractMavenProjectTestCase {

    // only use by reread()
    @TempDir
    Path projectRoot;

    /**

        client.setRequestListener(testListener);
        final String url = "http://test.com/";
        try {
            client.execute(RequestDataBuilder.newRequestData().get().url(url).build());
            fail();
        } catch (final MultipleCrawlingAccessException e) {
            // ok
            final Throwable[] causes = e.getCauses();
            assertEquals(5, causes.length);
        }

    try {
      UnsignedInts.parseUnsignedInt("0", Character.MIN_RADIX - 1);
      fail();
    } catch (NumberFormatException expected) {
    } catch (IllegalArgumentException expected) {
      // Kotlin native, see above
    }

    try {
      UnsignedInts.parseUnsignedInt("0", Character.MAX_RADIX + 1);
      fail();
    } catch (NumberFormatException expected) {
    } catch (IllegalArgumentException expected) {

                }
            }
            fail("Should have thrown RuntimeException");
        } catch (RuntimeException e) {
            assertEquals("Simulated processing error", e.getMessage());
            // If InputStream wasn't properly closed, this would leak resources
            // try-with-resources ensures cleanup happens
        } catch (IOException e) {
            fail("Should not throw IOException: " + e.getMessage());

    public void test_validateInputStream_throwsExceptionForNull() {
        final TextExtractor extractor = container.getComponent("textExtractor");

        try {
            extractor.getText(null, null);
            fail("Expected CrawlerSystemException");
        } catch (final CrawlerSystemException e) {
            assertEquals("The inputstream is null.", e.getMessage());
        }
    }

    /**

        // /tmp/junit-16591192886395443631/.m2/extensions.xml:3
        // [main] WARNING org.apache.maven.cling.invoker.PlexusContainerCapsuleFactory -
        // [main] WARNING org.apache.maven.cling.invoker.PlexusContainerCapsuleFactory - Order of core extensions
        // precedence is project > user > installation. Selected extensions are:
        // [main] WARNING org.apache.maven.cling.invoker.PlexusContainerCapsuleFactory - *

    if (getList().size() != expectedList.size()) {
      fail("size mismatch: " + reportContext(expectedList));
    }
    for (int i = 0; i < expectedList.size(); i++) {
      E expected = expectedList.get(i);
      E actual = getList().get(i);
      if (expected != actual && (expected == null || !expected.equals(actual))) {
        fail("mismatch at index " + i + ": " + reportContext(expectedList));
      }
    }
  }

Comme dans la requête :

```
http://127.0.0.1:8000/items/?item-query=foobaritems
```

Mais `item-query` n'est pas un nom de variable valide en Python.

Le nom le plus proche serait `item_query`.

Mais vous avez vraiment envie que ce soit exactement `item-query`...

   <span style="background-color:#007166"><font color="#D3D7CF"> module </font></span>  🐍 main.py

     <span style="background-color:#007166"><font color="#D3D7CF"> code </font></span>  Importing the FastAPI app object from the module with the
             following code: