protected byte[] engineDigest() {
        final byte[] digest = md5.digest();
        md5.update(opad);
        return md5.digest(digest);
    }

    @Override
    protected int engineDigest(final byte[] buf, final int offset, final int len) {
        final byte[] digest = md5.digest();
        md5.update(opad);
        md5.update(digest);
        try {
            return md5.digest(buf, offset, len);

		t.Errorf("failed to update with named arg")
	}

	AssertEqual(t, result4, namedUser)

	if err := DB.Exec("UPDATE named_users SET name1 = @name, name2 = @name2, name3 = @name", sql.Named("name", "jinzhu-new"), sql.Named("name2", "jinzhu-new2")).Error; err != nil {
		t.Errorf("failed to update with named arg")
	}

	namedUser.Name1 = "jinzhu-new"
	namedUser.Name2 = "jinzhu-new2"

     */
    private final String output;

    /**
     * Array of new input character sequences for update operations.
     * When not null, indicates this item has pending updates.
     */
    private String[] newInputs;

    /**
     * The new output character sequence for update operations.
     * When not null, indicates this item has pending updates.
     */
    private String newOutput;

    /**

        // Verify that createNextIndex completed without exceptions
        // The update alias should now point to the new index
        final String updateAlias = suggester.getIndex() + ".update";
        aliasResponse = client.admin().indices().prepareGetAliases(updateAlias).execute().actionGet();
        assertNotNull("Update alias should exist after createNextIndex", aliasResponse.getAliases());

        // Switch to new index

    private void writeLastUpdated(File touchfile, String key, String error) {
        HashMap<String, String> update = new HashMap<>();
        update.put(key, Long.toString(System.currentTimeMillis()));
        update.put(key + ERROR_KEY_SUFFIX, error); // error==null => remove mapping
        trackingFileManager.update(touchfile, update);
    }

    Date readLastUpdated(File touchfile, String key) {

			"SELECT * FROM `users` FOR UPDATE NOWAIT", nil,
		},
		{
			[]clause.Interface{clause.Select{}, clause.From{}, clause.Locking{Strength: clause.LockingStrengthUpdate, Options: clause.LockingOptionsSkipLocked}},
			"SELECT * FROM `users` FOR UPDATE SKIP LOCKED", nil,
		},
	}

	for idx, result := range results {

	if err := DB.Save(&user).Error; err != nil {
		t.Fatalf("errors happened when update: %v", err)
	}

	var user3 User
	DB.Preload("Languages").Preload("Friends").Find(&user3, "id = ?", user.ID)
	CheckUser(t, user2, user3)

	if err := DB.Session(&gorm.Session{FullSaveAssociations: true}).Save(&user).Error; err != nil {
		t.Fatalf("errors happened when update: %v", err)
	}

	var user4 User

			expectedUpdate: false,
		},
		{
			meta:           meta,
			pools:          newPools,
			name:           "Correct-Update",
			expectedErr:    false,
			expectedUpdate: true,
		},
		{
			meta:           meta,
			pools:          reducedPools,
			name:           "Correct-Update",
			expectedErr:    false,
			expectedUpdate: true,
		},
		{
			meta:           meta,

	}

	if err := DB.Model(&data).Update("password", EncryptedData("xnewpass")).Error; err == nil {
		t.Errorf("Should failed to update data with invalid data")
	}

	if err := DB.Model(&data).Update("password", EncryptedData("newpass")).Error; err != nil {
		t.Errorf("Should got no error update data with valid data, but got %v", err)
	}

// Package callbacks provides the default callback functions for GORM operations such as create, query, update, and delete.
package callbacks

import (
	"gorm.io/gorm"
)

var (
	createClauses = []string{"INSERT", "VALUES", "ON CONFLICT"}
	queryClauses  = []string{"SELECT", "FROM", "WHERE", "GROUP BY", "ORDER BY", "LIMIT", "FOR"}
	updateClauses = []string{"UPDATE", "SET", "WHERE"}
	deleteClauses = []string{"DELETE", "FROM", "WHERE"}
)