package com.infendro.mac

import com.infendro.hash.sha2.`SHA-256`
import kotlin.test.Test
import kotlin.test.assertContentEquals
import kotlin.test.assertEquals

class `HMAC Test` {
    val hmac = HMAC(`SHA-256`)

    @Test
    fun bytes() {
        assertEquals(32, hmac.bytes)
        assertEquals(256, hmac.bits)
    }

    @Test
    fun example() {
        val expected = ubyteArrayOf(
            0xf7U, 0xbcU, 0x83U, 0xf4U,
            0x30U, 0x53U, 0x84U, 0x24U,
            0xb1U, 0x32U, 0x98U, 0xe6U,
            0xaaU, 0x6fU, 0xb1U, 0x43U,
            0xefU, 0x4dU, 0x59U, 0xa1U,
            0x49U, 0x46U, 0x17U, 0x59U,
            0x97U, 0x47U, 0x9dU, 0xbcU,
            0x2dU, 0x1aU, 0x3cU, 0xd8U,
        ).asByteArray()
        val actual = hmac.hash(
            "key".encodeToByteArray(),
            "The quick brown fox jumps over the lazy dog".encodeToByteArray(),
        )
        assertContentEquals(expected, actual)
    }
}