t.Fatal(err)
	}
	left, err := v.UnmarshalMsg(bts)
	if err != nil {
		t.Fatal(err)
	}
	if len(left) > 0 {
		t.Errorf("%d bytes left over after UnmarshalMsg(): %q", len(left), left)
	}

	left, err = msgp.Skip(bts)
	if err != nil {
		t.Fatal(err)
	}
	if len(left) > 0 {
		t.Errorf("%d bytes left over after Skip(): %q", len(left), left)
	}
}

func BenchmarkMarshalMsgmetacache(b *testing.B) {

// Package ioutil implements some I/O utility functions which are not covered
// by the standard library.
package ioutil

import (
	"errors"
	"io"
)

// ErrOverread is returned to the reader when the hard limit of HardLimitReader is exceeded.
var ErrOverread = errors.New("input provided more bytes than specified")

// HardLimitReader returns a Reader that reads from r

package gorm

import (
	"context"
	"database/sql"
	"database/sql/driver"
	"errors"
	"reflect"
	"sync"
	"time"

	"gorm.io/gorm/internal/stmt_store"
)

type PreparedStmtDB struct {
	Stmts stmt_store.Store
	Mux   *sync.RWMutex
	ConnPool
}

// NewPreparedStmtDB creates and initializes a new instance of PreparedStmtDB.
//
// Parameters:

	if expectedCredentials.accessKey != actualCredential.accessKey {
		t.Errorf("Test %d: AccessKey mismatch: Expected \"%s\", got \"%s\"", testNum, expectedCredentials.accessKey, actualCredential.accessKey)
	}
	if !expectedCredentials.scope.date.Equal(actualCredential.scope.date) {
		t.Errorf("Test %d: Date mismatch:Expected \"%s\", got \"%s\"", testNum, expectedCredentials.scope.date, actualCredential.scope.date)
	}

	var locksHeld int64
	if locksHeld, reply = l.lockMap[args.Resources[0]]; !reply { // No lock is held on the given name
		return false, fmt.Errorf("Unlock attempted on an unlocked entity: %s", args.Resources[0])
	}
	if reply = locksHeld == WriteLock; !reply { // Unless it is a write lock
		return false, fmt.Errorf("Unlock attempted on a read locked entity: %s (%d read locks active)", args.Resources[0], locksHeld)
	}

	driveTimeoutErrorsMD = NewCounterMD(driveTimeoutErrorsTotal,
		"Total timeout errors on a drive", allDriveLabels...)
	driveIOErrorsMD = NewCounterMD(driveIOErrorsTotal,
		"Total I/O errors on a drive", allDriveLabels...)
	driveAvailabilityErrorsMD = NewCounterMD(driveAvailabilityErrorsTotal,
		"Total availability errors (I/O errors, timeouts) on a drive",
		allDriveLabels...)
	driveWaitingIOMD = NewGaugeMD(driveWaitingIO,

	expected := true
	if locked != expected {
		t.Errorf("TestSimpleWriteLockAcquired(): \nexpected %#v\ngot      %#v", expected, locked)
	}
}

func TestSimpleWriteLockTimedOut(t *testing.T) {
	locked := testSimpleWriteLock(t, testDrwMutexAcquireTimeout)

	expected := false
	if locked != expected {
		t.Errorf("TestSimpleWriteLockTimedOut(): \nexpected %#v\ngot      %#v", expected, locked)
	}
}

			if err != nil && testCase.success {
				t.Errorf("expected to succeed but failed with %s", err)
			}
			if !testCase.success && err == nil {
				t.Error("expected failure but succeeded instead")
			}
			if testCase.success {
				if !reflect.DeepEqual(endpoints, testCase.endpoints) {
					t.Errorf("expected %s, got %s", testCase.endpoints, endpoints)
				}
				if secure != testCase.secure {

		"age":        20,
		"birthday":   time.Now(),
		"active":     f,
	}

	for k, v := range newValues {
		if err := userSchema.FieldsByDBName[k].Set(context.Background(), reflectValue, v); err != nil {
			t.Errorf("no error should happen when assign value to field %v, but got %v", k, err)
		}
	}
	newValues["updated_at"] = time.Time{}
	newValues["active"] = false
	checkField(t, userSchema, reflectValue, newValues)

		// Uncomment below to see message appearance:
		// fmt.Println(output)
		switch {
		case testCase.dlURL == "" && output != "":
			t.Errorf("Testcase %d: no newer release available but got an update message: %s", i+1, output)
		case output == "" && testCase.dlURL != "" && testCase.older > 0:
			t.Errorf("Testcase %d: newer release is available but got empty update message!", i+1)
		case output == "" && (testCase.dlURL == "" || testCase.older <= 0):