import java.util.LinkedList;
import java.util.List;
import java.util.Queue;

/**
 * A chain of {@link ReadingConverter} implementations that applies each converter in sequence to generate possible reading variations of a given text.
 * It maintains a list of ReadingConverter instances and iterates through them, applying each converter to the input text and accumulating the results.

        assertTrue(s.contains("filename=/bar"));
        assertTrue(s.contains("maxReferralLevel=0x3"));
    }

    @ParameterizedTest
    @ValueSource(ints = { 0, 5, -1, 65534 })
    @DisplayName("referral level variations")
    void testLevels(int level) throws Exception {
        Trans2GetDfsReferral cmd = new Trans2GetDfsReferral("foo");
        setPrivateField(cmd, "maxReferralLevel", level);
        byte[] buffer = new byte[100];

    for (Striped<?> striped : allImplementations()) {
      new NullPointerTester().testAllPublicInstanceMethods(striped);
    }
  }

  public void testSizes() {
    // not bothering testing all variations, since we know they share implementations
    assertTrue(Striped.lock(100).size() >= 100);
    assertTrue(Striped.lock(256).size() == 256);
    assertTrue(Striped.lazyWeakLock(100).size() >= 100);

    for (Striped<?> striped : allImplementations()) {
      new NullPointerTester().testAllPublicInstanceMethods(striped);
    }
  }

  public void testSizes() {
    // not bothering testing all variations, since we know they share implementations
    assertTrue(Striped.lock(100).size() >= 100);
    assertTrue(Striped.lock(256).size() == 256);
    assertTrue(Striped.lazyWeakLock(100).size() >= 100);

        assertEquals(3, third.length, "Allocated buffer length matches configured maximum size");
    }

    // Parameterized: exercise small variations of cache size for a simple reuse cycle
    @ParameterizedTest
    @ValueSource(ints = { 1, 2 })
    @DisplayName("Parameterized: buffer reuse works for various small cache sizes")

## Pour résumer

Avec `Query`, `Path` (et d'autres que vous verrez plus tard) vous pouvez déclarer des métadonnées et des validations de chaînes de la même manière qu'avec les [Paramètres de requête et validations de chaînes](query-params-str-validations.md){.internal-link target=_blank}.

Et vous pouvez également déclarer des validations numériques :

* `gt` : `g`reater `t`han
* `ge` : `g`reater than or `e`qual
* `lt` : `l`ess `t`han

# Path Parameters and Numeric Validations { #path-parameters-and-numeric-validations }

In the same way that you can declare more validations and metadata for query parameters with `Query`, you can declare the same type of validations and metadata for path parameters with `Path`.

## Import Path { #import-path }

First, import `Path` from `fastapi`, and import `Annotated`:

{* ../../docs_src/path_params_numeric_validations/tutorial001_an_py310.py hl[1,3] *}

# Paramètres de requête et validations de chaînes de caractères

**FastAPI** vous permet de déclarer des informations et des validateurs additionnels pour vos paramètres de requêtes.

Commençons avec cette application pour exemple :

{* ../../docs_src/query_params_str_validations/tutorial001.py hl[9] *}

{* ../../docs_src/path_params_numeric_validations/tutorial006.py hl[11] *}

## 🌃

⏮️ `Query`, `Path` (& 🎏 👆 🚫 👀) 👆 💪 📣 🗃 & 🎻 🔬 🎏 🌌 ⏮️ [🔢 🔢 & 🎻 🔬](query-params-str-validations.md){.internal-link target=_blank}.

& 👆 💪 📣 🔢 🔬:

* `gt`: `g`🅾 `t`👲
* `ge`: `g`🅾 🌘 ⚖️ `e`🅾
* `lt`: `l`👭 `t`👲
* `le`: `l`👭 🌘 ⚖️ `e`🅾

/// info

## Recapitulando

Com `Query`, `Path` (e outras que você ainda não viu) você pode declarar metadados e validações de texto do mesmo modo que com [Parâmetros de consulta e validações de texto](query-params-str-validations.md){.internal-link target=_blank}.

E você também pode declarar validações numéricas:

* `gt`: maior que (`g`reater `t`han)
* `ge`: maior que ou igual (`g`reater than or `e`qual)
* `lt`: menor que (`l`ess `t`han)