package sm3

import (
	"crypto/rand"
	"fmt"
	"testing"
	"time"

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

func TestBlock(t *testing.T) {
	d := new(digest)
	d.Reset()
	p := make([]byte, 64)
	for i := range p {
		p[i] = 1
	}
	block(d, p)
	expect := [8]uint32{0xb9122804, 0xc515b3c2, 0xb34a42f1, 0x06edad4e, 0x52ecd5c7, 0x8545dd67, 0xf42b4275, 0x900ed3ad}
	assert.Equal(t, d.h, expect)
}

// BenchmarkSM3 SM3性能测试
//
// goos: darwin
// goarch: arm64
// pkg: xdx.jelly/xgcl/sm/sm3
// BenchmarkSM3
// BenchmarkSM3-10    	      34	  31783298 ns/op	 329.91 MB/s	     272 B/op	       3 allocs/op
// PASS
// ok  	xdx.jelly/xgcl/sm/sm3	1.184s
func BenchmarkSM3(b *testing.B) {
	buf := make([]byte, 10*1024*1024)
	d := New()
	b.SetBytes(int64(len(buf)))
	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		d.Write(buf)
		d.Sum(nil)
		d.Reset()
	}
}

var sm3Tests = []struct {
	name       string
	msg        []byte
	iterations int
	want       string
}{
	{
		name:       "empty",
		msg:        []byte{},
		iterations: 1,
		want:       "1ab21d8355cfa17f8e61194831e81a8f22bec8c728fefb747ed035eb5082aa2b",
	},
	{
		name:       "short",
		msg:        []byte("abc"),
		iterations: 1,
		want:       "66c7f0f462eeedd9d1f2d46bdc10e4e24167c4875cf2f7a2297da02b8f4ba8e0",
	},
	{
		name:       "long",
		msg:        []byte("abcdabcdabcdabcdabcdabcdabcdabcdabcdabcdabcdabcdabcdabcdabcdabcd"),
		iterations: 1,
		want:       "debe9ff92275b8a138604889c18e5a4d6fdb70e5387e5765293dcba39c0c5732",
	},
	{
		name:       "longlong",
		msg:        longMsg,
		iterations: 1,
		want:       "c5c13a8f59a97cdeae64f16a2272a9e7dd228cb67912cce1fbe3616c954bcbf3",
	},
}

func TestSm3(t *testing.T) {
	for _, test := range sm3Tests {
		t.Run(test.name, func(t *testing.T) {
			d := New()
			for i := 0; i < test.iterations; i++ {
				for _, c := range test.msg {
					d.Write([]byte{c})
				}
			}
			s := fmt.Sprintf("%x", d.Sum(nil))
			assert.Equal(t, s, test.want)
		})
	}
}

func TestSM3(t *testing.T) {
	data := make([]byte, 256)
	for i := range data {
		data[i] = byte(i)
	}
	for i := 0; i < len(data); i++ {
		digest := Sum(data[:i])
		fmt.Printf("%x\n", digest[:])
	}
}

func TestSpeedReport(t *testing.T) {
	msg := make([]byte, 10*1024*1024)
	_, _ = rand.Read(msg)

	start := time.Now()
	times := 100
	for i := 0; i < times; i++ {
		Sum(msg)
	}

	end := time.Now()
	elapsed := end.Sub(start)
	t.Logf("SM3 digest speed: %.2f MBps\n", float64(times*len(msg))/float64(1024*1024)/elapsed.Seconds())
}

var longMsg = []byte{
	0x41, 0x6C, 0x69, 0x63, 0x65, 0x42, 0x6F, 0x62,
	0x7C, 0xBA, 0x5B, 0x19, 0x06, 0x9E, 0xE6, 0x6A,
	0xA7, 0x9D, 0x49, 0x04, 0x13, 0xD1, 0x18, 0x46,
	0xB9, 0xBA, 0x76, 0xDD, 0x22, 0x56, 0x7F, 0x80,
	0x9C, 0xF2, 0x3B, 0x6D, 0x96, 0x4B, 0xB2, 0x65,
	0xA9, 0x76, 0x0C, 0x99, 0xCB, 0x6F, 0x70, 0x63,
	0x43, 0xFE, 0xD0, 0x56, 0x37, 0x08, 0x58, 0x64,
	0x95, 0x8D, 0x6C, 0x90, 0x90, 0x2A, 0xBA, 0x7D,
	0x40, 0x5F, 0xBE, 0xDF, 0x7B, 0x78, 0x15, 0x99,
	0x86, 0x1E, 0x91, 0x48, 0x5F, 0xB7, 0x62, 0x3D,
	0x27, 0x94, 0xF4, 0x95, 0x03, 0x1A, 0x35, 0x59,
	0x8B, 0x49, 0x3B, 0xD4, 0x5B, 0xE3, 0x78, 0x13,
	0xAB, 0xC7, 0x10, 0xFC, 0xC1, 0xF3, 0x44, 0x82,
	0x32, 0xD9, 0x06, 0xA4, 0x69, 0xEB, 0xC1, 0x21,
	0x6A, 0x80, 0x2A, 0x70, 0x52, 0xD5, 0x61, 0x7C,
	0xD4, 0x30, 0xFB, 0x56, 0xFB, 0xA7, 0x29, 0xD4,
	0x1D, 0x9B, 0xD6, 0x68, 0xE9, 0xEB, 0x96, 0x00,
	0x28, 0x54, 0x2F, 0xB6, 0x95, 0x4C, 0x84, 0xBE,
	0x6A, 0x5F, 0x29, 0x88, 0xA3, 0x1C, 0xB6, 0x81,
	0x7B, 0xA0, 0x78, 0x19, 0x66, 0xFA, 0x83, 0xD9,
	0x67, 0x3A, 0x95, 0x77, 0xD3, 0xC0, 0xC1, 0x34,
	0x5E, 0x27, 0xC1, 0x9F, 0xC0, 0x2E, 0xD9, 0xAE,
	0x37, 0xF5, 0xBB, 0x7B, 0xE9, 0xC0, 0x3C, 0x2B,
	0x87, 0xDE, 0x02, 0x75, 0x39, 0xCC, 0xF0, 0x3E,
	0x6B, 0x7D, 0x36, 0xDE, 0x4A, 0xB4, 0x5C, 0xD1,
	0xA1, 0xAB, 0xFC, 0xD3, 0x0C, 0x57, 0xDB, 0x0F,
	0x1A, 0x83, 0x8E, 0x3A, 0x8F, 0x2B, 0xF8, 0x23,
	0x47, 0x9C, 0x97, 0x8B, 0xD1, 0x37, 0x23, 0x05,
	0x06, 0xEA, 0x62, 0x49, 0xC8, 0x91, 0x04, 0x9E,
	0x34, 0x97, 0x47, 0x79, 0x13, 0xAB, 0x89, 0xF5,
	0xE2, 0x96, 0x0F, 0x38, 0x2B, 0x1B, 0x5C, 0x8E,
	0xE0, 0x9D, 0xE0, 0xFA, 0x49, 0x8B, 0xA9, 0x5C,
	0x44, 0x09, 0xD6, 0x30, 0xD3, 0x43, 0xDA, 0x40,
	0x4F, 0xEC, 0x93, 0x47, 0x2D, 0xA3, 0x3A, 0x4D,
	0xB6, 0x59, 0x90, 0x95, 0xC0, 0xCF, 0x89, 0x5E,
	0x3A, 0x7B, 0x99, 0x3E, 0xE5, 0xE4, 0xEB, 0xE3,
	0xB9, 0xAB, 0x7D, 0x7D, 0x5F, 0xF2, 0xA3, 0xD1,
	0x64, 0x7B, 0xA1, 0x54, 0xC3, 0xE8, 0xE1, 0x85,
	0xDF, 0xC3, 0x36, 0x57, 0xC1, 0xF1, 0x28, 0xD4,
	0x80, 0xF3, 0xF7, 0xE3, 0xF1, 0x68, 0x01, 0x20,
	0x80, 0x29, 0xE1, 0x94, 0x34, 0xC7, 0x33, 0xBB,
	0x73, 0xF2, 0x16, 0x93, 0xC6, 0x6F, 0xC2, 0x37,
	0x24, 0xDB, 0x26, 0x38, 0x0C, 0x52, 0x62, 0x23,
	0xC7, 0x05, 0xDA, 0xF6, 0xBA, 0x18, 0xB7, 0x63,
	0xA6, 0x86, 0x23, 0xC8, 0x6A, 0x63, 0x2B, 0x05,
	0x0F, 0x63, 0xA0, 0x71, 0xA6, 0xD6, 0x2E, 0xA4,
	0x5B, 0x59, 0xA1, 0x94, 0x2D, 0xFF, 0x53, 0x35,
	0xD1, 0xA2, 0x32, 0xC9, 0xC5, 0x66, 0x4F, 0xAD,
	0x5D, 0x6A, 0xF5, 0x4C, 0x11, 0x41, 0x8B, 0x0D,
	0x8C, 0x8E, 0x9D, 0x8D, 0x90, 0x57, 0x80, 0xD5,
	0x0E, 0x77, 0x90, 0x67, 0xF2, 0xC4, 0xB1, 0xC8,
	0xF8, 0x3A, 0x8B, 0x59, 0xD7, 0x35, 0xBB, 0x52,
	0xAF, 0x35, 0xF5, 0x67, 0x30, 0xBD, 0xE5, 0xAC,
	0x86, 0x1C, 0xCD, 0x99, 0x78, 0x61, 0x72, 0x67,
	0xCE, 0x4A, 0xD9, 0x78, 0x9F, 0x77, 0x73, 0x9E,
	0x62, 0xF2, 0xE5, 0x7B, 0x48, 0xC2, 0xFF, 0x26,
	0xD2, 0xE9, 0x0A, 0x79, 0xA1, 0xD8, 0x6B, 0x93,
	0x9B, 0x1C, 0xA0, 0x8F, 0x64, 0x71, 0x2E, 0x33,
	0xAE, 0xDA, 0x3F, 0x44, 0xBD, 0x6C, 0xB6, 0x33,
	0xE0, 0xF7, 0x22, 0x21, 0x1E, 0x34, 0x4D, 0x73,
	0xEC, 0x9B, 0xBE, 0xBC, 0x92, 0x14, 0x27, 0x65,
	0x6B, 0xA5, 0x84, 0xCE, 0x74, 0x2A, 0x2A, 0x3A,
	0xB4, 0x1C, 0x15, 0xD3, 0xEF, 0x94, 0xED, 0xEB,
	0x8E, 0xF7, 0x4A, 0x2B, 0xDC, 0xDA, 0xAE, 0xCC,
	0x09, 0xAB, 0xA5, 0x67, 0x98, 0x1F, 0x64, 0x37,
	0x10, 0x52, 0xD6, 0xE9, 0xD1, 0x3E, 0x38, 0x19,
	0x09, 0xDF, 0xF7, 0xB2, 0xB4, 0x1E, 0x13, 0xC9,
	0x87, 0xD0, 0xA9, 0x06, 0x84, 0x23, 0xB7, 0x69,
	0x48, 0x0D, 0xAC, 0xCE, 0x6A, 0x06, 0xF4, 0x92,
	0x5F, 0xFE, 0xB9, 0x2A, 0xD8, 0x70, 0xF9, 0x7D,
	0xC0, 0x89, 0x31, 0x14, 0xDA, 0x22, 0xA4, 0x4D,
	0xBC, 0x9E, 0x7A, 0x8B, 0x6C, 0xA3, 0x1A, 0x0C,
	0xF0, 0x46, 0x72, 0x65, 0xA1, 0xFB, 0x48, 0xC7,
	0x2C, 0x5C, 0x3B, 0x37, 0xE4, 0xF2, 0xFF, 0x83,
	0xDB, 0x33, 0xD9, 0x8C, 0x03, 0x17, 0xBC, 0xBB,
	0xBB, 0xF4, 0xAC, 0x6D, 0xF6, 0xB8, 0x9E, 0xCA,
	0x58, 0x26, 0x8B, 0x28, 0x00, 0x45, 0xE6, 0x12,
	0x6C, 0xED, 0x9E, 0x2D, 0x7C, 0x9C, 0xD3, 0xD5,
	0xAD, 0x63, 0x0D, 0xEF, 0xAB, 0x0B, 0x83, 0x15,
	0x06, 0x21, 0x80, 0x37, 0xEE, 0x0F, 0x86, 0x1C,
	0xF9, 0xB4, 0x3C, 0x78, 0x43, 0x4A, 0xEC, 0x38,
	0x0A, 0xE7, 0xBF, 0x3E, 0x1A, 0xEC, 0x0C, 0xB6,
	0x7A, 0x03, 0x44, 0x09, 0x06, 0xC7, 0xDF, 0xB3,
	0xBC, 0xD4, 0xB6, 0xEE, 0xEB, 0xB7, 0xE3, 0x71,
	0xF0, 0x09, 0x4A, 0xD4, 0xA8, 0x16, 0x08, 0x8D,
	0x98, 0xDB, 0xC7, 0x91, 0xD0, 0x67, 0x1C, 0xAC,
	0xA1, 0x22, 0x36, 0xCD, 0xF8, 0xF3, 0x9E, 0x15,
	0xAE, 0xB9, 0x6F, 0xAE, 0xB3, 0x96, 0x06, 0xD5,
	0xB0, 0x4A, 0xC5, 0x81, 0x74, 0x6A, 0x66, 0x3D,
	0x00, 0xDD, 0x2B, 0x74, 0x16, 0xBA, 0xA9, 0x11,
	0x72, 0xE8, 0x9D, 0x53, 0x09, 0xD8, 0x34, 0xF7,
	0x8C, 0x1E, 0x31, 0xB4, 0x48, 0x3B, 0xB9, 0x71,
	0x85, 0x93, 0x1B, 0xAD, 0x7B, 0xE1, 0xB9, 0xB5,
	0x7E, 0xBA, 0xC0, 0x34, 0x9F, 0x85, 0x44, 0x46,
	0x9E, 0x60, 0xC3, 0x2F, 0x60, 0x75, 0xFB, 0x04,
	0x68, 0xA6, 0x81, 0x47, 0xFF, 0x01, 0x35, 0x37,
	0xDF, 0x79, 0x2F, 0xFC, 0xE0, 0x24, 0xF8, 0x57,
	0x10, 0xCC, 0x2B, 0x56, 0x1A, 0x62, 0xB6, 0x2D,
	0xA3, 0x6A, 0xEF, 0xD6, 0x08, 0x50, 0x71, 0x4F,
	0x49, 0x17, 0x0F, 0xD9, 0x4A, 0x00, 0x10, 0xC6,
	0xD4, 0xB6, 0x51, 0xB6, 0x4F, 0x3A, 0x3A, 0x5E,
	0x58, 0xC9, 0x68, 0x7B, 0xED, 0xDC, 0xD9, 0xE4,
	0xFE, 0xDA, 0xB1, 0x6B, 0x88, 0x4D, 0x1F, 0xE6,
	0xDF, 0xA1, 0x17, 0xB2, 0xAB, 0x82, 0x1F, 0x74,
	0xE0, 0xBF, 0x7A, 0xCD, 0xA2, 0x26, 0x98, 0x59,
	0x2A, 0x43, 0x09, 0x68, 0xF1, 0x60, 0x86, 0x06,
	0x19, 0x04, 0xCE, 0x20, 0x18, 0x47, 0x93, 0x4B,
	0x11, 0xCA, 0x0F, 0x9E, 0x95, 0x28, 0xF5, 0xA9,
	0xD0, 0xCE, 0x8F, 0x01, 0x5C, 0x9A, 0xEA, 0x79,
	0x93, 0x4F, 0xDD, 0xA6, 0xD3, 0xAB, 0x48, 0xC8,
	0x57, 0x1C, 0xE2, 0x35, 0x4B, 0x79, 0x74, 0x2A,
	0xA4, 0x98, 0xCB, 0x8C, 0xDD, 0xE6, 0xBD, 0x1F,
	0xA5, 0x94, 0x63, 0x45, 0xA1, 0xA6, 0x52, 0xF6,
	0xA7, 0x6B, 0x67, 0x77, 0xAD, 0x87, 0xC9, 0x12,
	0x4C, 0x7D, 0x70, 0x65, 0xF7, 0x48, 0x08, 0xDB,
	0x2E, 0x80, 0x37, 0x1C, 0x70, 0x47, 0x15, 0x80,
	0xB0, 0xC7, 0xC4, 0x57, 0xA7, 0x9E, 0xA5, 0xE7,
	0x24, 0x2F, 0xA3, 0x1F, 0xF8, 0xE1, 0x39, 0xFA,
	0xE1, 0x69, 0xA1, 0x69, 0x92, 0xF5, 0xF0, 0x29,
	0x16, 0x26, 0x64, 0xCE, 0x78, 0xB3, 0x33, 0x32,
	0x4B, 0x3B, 0xDB, 0x4C, 0x68, 0x2B, 0xF9, 0xB2,
	0x06, 0x26, 0xD6, 0x4D, 0xCE, 0x60, 0x3F, 0x33,
	0x2E, 0x95, 0x93, 0xF6, 0x2B, 0x67, 0xA6, 0xB0,
	0x02, 0xDE, 0xB6, 0xDD, 0x2E, 0x7D, 0x4F, 0xAD,
	0x3F, 0x33, 0xC3, 0x8F, 0x20, 0x2D, 0xE2, 0x04,
	0x53, 0x27, 0x49, 0x06, 0x11, 0xB2, 0xAE, 0x6F,
	0x84, 0x9C, 0xF7, 0x79, 0xB9, 0xB7, 0x4A, 0xD9,
	0xBA, 0x6C, 0xF3, 0x97, 0xF6, 0x13, 0x26, 0x12,
	0x07, 0x77, 0xCE, 0x46, 0x92, 0xF8, 0x5D, 0xC2,
	0xAD, 0xC2, 0x69, 0xD1, 0xB6, 0x23, 0x32, 0x58,
	0x2D, 0x82, 0x31, 0x32, 0xA9, 0x71, 0x27, 0x54,
	0x77, 0xA0, 0xCF, 0x1D, 0xCC, 0xF4, 0xB2, 0xBF,
	0x09, 0x6D, 0x91, 0x10, 0xF7, 0x4E, 0x2A, 0x01,
	0xB1, 0xED, 0x06, 0x50, 0x23, 0x33, 0xB2, 0xAB,
	0x1A, 0xE6, 0x97, 0xEA, 0x34, 0xF2, 0xEF, 0x8C,
	0x6E, 0x47, 0xB0, 0x43, 0x18, 0x31, 0x70, 0x6C,
	0xB5, 0xAF, 0xCD, 0x75, 0x75, 0x4F, 0xA7, 0x95,
	0x28, 0xF6, 0x5B, 0x36, 0x51, 0xE1, 0x84, 0xBC,
	0xED, 0x03, 0x06, 0x61, 0xEE, 0x4A, 0x8D, 0x67,
	0x0F, 0xBA, 0xE2, 0x67, 0x96, 0xE8, 0xCD, 0xB6,
	0x6F, 0x38, 0x8E, 0xD6, 0x64, 0x4A, 0xF8, 0x51,
	0x88, 0x5C, 0x7F, 0x92, 0x4C, 0xC7, 0xCB, 0x20,
	0x96, 0x8A, 0xA5, 0x0E, 0x82, 0x30, 0xA3, 0xB3,
	0x9C, 0x2B, 0xB5, 0xDD, 0x4D, 0x75, 0x3D, 0x94,
	0xBE, 0x5D, 0xD9, 0xA4, 0x27, 0x2C, 0xF8, 0x27,
	0x0D, 0xA6, 0x49, 0xCB, 0x8A, 0x63, 0x17, 0x2F,
	0x8F, 0xB0, 0x28, 0xCD, 0x95, 0x1E, 0x76, 0x21,
	0x58, 0x24, 0xA4, 0xEE, 0x28, 0x40, 0x5D, 0x3C,
	0x5E, 0x5D, 0xFD, 0xA6, 0xC7, 0xCE, 0x29, 0x3F,
	0x4A, 0x40, 0xAC, 0x8F, 0xC5, 0xB7, 0x16, 0x8F,
	0xA5, 0x4A, 0xD3, 0xD0, 0xB8, 0x1A, 0x0F, 0x8F,
	0x50, 0xC1, 0x64, 0x36, 0x6C, 0xCD, 0xEC, 0x1C,
	0x9A, 0x40, 0xDC, 0xE9, 0xF0, 0xA3, 0x11, 0x33,
	0x35, 0xD8, 0x9E, 0xAE, 0xB3, 0x6F, 0x4D, 0x31,
	0xBB, 0x67, 0x13, 0x06, 0x4C, 0xDA, 0x88, 0x35,
	0xE2, 0xAA, 0x45, 0x29, 0xF4, 0x21, 0x29, 0x32,
	0x7C, 0x6F, 0x7E, 0x8A, 0xB7, 0x60, 0x65, 0x4D,
	0x58, 0xD1, 0x7E, 0x44, 0x8F, 0x6D, 0x5C, 0xBC,
	0xA6, 0x6B, 0xD7, 0xE3, 0x38, 0x10, 0xD2, 0x70,
	0xDD, 0x3B, 0x94, 0x36, 0xB1, 0xBF, 0x46, 0xB9,
	0xA1, 0x7C, 0x9D, 0x11, 0xA5, 0xA6, 0xB1, 0x48,
	0, 0, 0, 1,
}