/*
 * Copyright © 2015-2018 Aeneas Rekkas <aeneas+oss@aeneas.io>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * @author		Aeneas Rekkas <aeneas+oss@aeneas.io>
 * @copyright 	2015-2018 Aeneas Rekkas <aeneas+oss@aeneas.io>
 * @license 	Apache-2.0
 *
 */

package hmac

import (
	"testing"

	"github.com/stretchr/testify/assert"
)

func TestRandomBytes(t *testing.T) {
	bytes, err := RandomBytes(128)
	assert.NoError(t, err)
	assert.Len(t, bytes, 128)
}

func TestPseudoRandomness(t *testing.T) {
	runs := 65536
	results := map[string]bool{}
	for i := 0; i < runs; i++ {
		bytes, err := RandomBytes(128)
		assert.NoError(t, err)

		_, ok := results[string(bytes)]
		assert.False(t, ok)
		results[string(bytes)] = true
	}
}