You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: pbkdf_test.go
    path of file: ./repos/bytom/lib/golang.org/x/crypto/pkcs12
    
    the code of the file until where you have to start completion: // Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package pkcs12

import (
	"bytes"
	"testing"
)

func TestThatPBKDFWorksCorrectlyForLongKeys(t *testing.T) {
	cipherInfo := shaWithTripleDESCBC{}

	salt := []byte("\xff\xff\xff\xff\xff\xff\xff\xff")
	password, _ := bmpString("sesame")
	key := cipherInfo.deriveKey(salt, password,
    
func TestThatPBKDFHandlesLeadingZeros(t *testing.T) {
	// This test triggers a case where I_j (in step 6C) ends up with leading zero
	// byte, meaning that len(Ijb) < v (leading zeros get stripped by big.Int).
	// This was previously causing bug whereby certain inputs would break the
	// derivation and produce the wrong output.
	key := pbkdf(sha1Sum, 20, 64, []byte("\xf3\x7e\x05\xb5\x18\x32\x4b\x4b"), []byte("\x00\x00"), 2048, 1, 24)
	expected := []byte("\x00\xf7\x59\xff\x47\xd1\x4d\xd0\x36\x65\xd5\x94\x3c\xb3\xc4\xa3\x9a\x25\x55\xc0\x2a\xed\x66\xe1")
	if bytes.Compare(key, expected) != 0 {
		t.Fatalf("expected key '%x', but found '%x'", expected, key)
	}
}