// The result should contain Session Id with the generated session ID
        assertNotNull(thumbnailJob.sessionId);
        assertTrue(result.contains("Session Id:"));

        // The test cannot actually start the process since it requires many dependencies
        // The execute method catches the exception and returns the session ID
    }

    // Test execute with custom session ID
    @Test

    public String execute() {
        final StringBuilder resultBuf = new StringBuilder();

        if (sessionId == null) { // create session id
            sessionId = RandomStringUtils.randomAlphabetic(15);
        }
        resultBuf.append("Session Id: ").append(sessionId).append("\n");
        if (jobExecutor != null) {
            jobExecutor.addShutdownListener(() -> ComponentUtil.getProcessHelper().destroyProcess(sessionId));

     * @see org.apache.maven.api.Session#isVersionSnapshot(String)
     */
    boolean isSnapshot();

    /**
     * {@return coordinates with the same identifiers as this artifact}.
     * This is a shortcut for {@code session.createArtifactCoordinates(artifact)}.
     *
     * @see org.apache.maven.api.Session#createArtifactCoordinates(Artifact)
     */
    @Nonnull

    private static final String S2C_SIGN_CONSTANT = "session key to server-to-client signing key magic constant";
    private static final String S2C_SEAL_CONSTANT = "session key to server-to-client sealing key magic constant";

    private static final String C2S_SIGN_CONSTANT = "session key to client-to-server signing key magic constant";
    private static final String C2S_SEAL_CONSTANT = "session key to client-to-server sealing key magic constant";

	coupon := &Coupon{
		AppliesToProduct: []*CouponProduct{
			{ProductId: "full-save-association-product1"},
		},
		AmountOff:  10,
		PercentOff: 0.0,
	}

	err := DB.
		Session(&gorm.Session{FullSaveAssociations: true}).
		Create(coupon).Error
	if err != nil {
		t.Errorf("Failed, got error: %v", err)
	}

	if DB.First(&Coupon{}, "id = ?", coupon.ID).Error != nil {

	}

	DB.Model(&product).Session(&gorm.Session{SkipHooks: true}).Updates(Product3{Code: "L1216"})
	if product.Price != 320 || product.Code != "L1216" {
		t.Errorf("invalid data after update, got %+v", product)
	}

	var result2 Product3
	DB.First(&result2, product.ID)

	AssertEqual(t, result2, product)

	product2 := Product3{Name: "Product", Price: 0}
	DB.Session(&gorm.Session{SkipHooks: true}).Create(&product2)

有些特定條件的使用情境，可能會受益於舊行為（在送出回應之前執行含有 `yield` 的相依的結束程式碼）。

例如，假設你在含有 `yield` 的相依中只用資料庫 session 來驗證使用者，而這個 session 之後並未在「路徑操作函式」中使用，僅在相依中使用，且回應需要很長時間才會送出，例如一個慢速傳送資料的 `StreamingResponse`，但它並沒有使用資料庫。

在這種情況下，資料庫 session 會一直被保留到回應傳送完畢為止，但如果你根本不會用到它，就沒有必要一直持有它。

可能會像這樣：

{* ../../docs_src/dependencies/tutorial013_an_py310.py *}

結束程式碼（自動關閉 `Session`）在：

{* ../../docs_src/dependencies/tutorial013_an_py310.py ln[19:21] *}

		if !selectedUpdate {
			tx.Statement.Selects = append(tx.Statement.Selects, "*")
		}

		updateTx := tx.callbacks.Update().Execute(tx.Session(&Session{Initialized: true}))

		if updateTx.Error == nil && updateTx.RowsAffected == 0 && !updateTx.DryRun && !selectedUpdate {
			return tx.Session(&Session{SkipHooks: true}).Clauses(clause.OnConflict{UpdateAll: true}).Create(value)
		}

		return updateTx
	}

	return
}

### Create a Session Dependency { #create-a-session-dependency }

A **`Session`** is what stores the **objects in memory** and keeps track of any changes needed in the data, then it **uses the `engine`** to communicate with the database.

We will create a FastAPI **dependency** with `yield` that will provide a new `Session` for each request. This is what ensures that we use a single session per request. 🤓

{* ../../docs_src/sql_databases/tutorial001_an_py310.py ln[21:22] hl[21:22] *}

### Eine Session-Abhängigkeit erstellen { #create-a-session-dependency }

Eine <abbr title="Sitzung">**`Session`**</abbr> speichert die **Objekte im Speicher** und verfolgt alle Änderungen, die an den Daten vorgenommen werden müssen, dann **verwendet sie die `engine`**, um mit der Datenbank zu kommunizieren.