githaven/modules/packages/multi_hasher_test.go
Jason Song 9607750b5e
Replace fmt.Sprintf with hex.EncodeToString (#21960)
`hex.EncodeToString` has better performance than `fmt.Sprintf("%x",
[]byte)`, we should use it as much as possible.

I'm not an extreme fan of performance, so I think there are some
exceptions:

- `fmt.Sprintf("%x", func(...)[N]byte())`
- We can't slice the function return value directly, and it's not worth
adding lines.
    ```diff
    func A()[20]byte { ... }
    - a := fmt.Sprintf("%x", A())
    - a := hex.EncodeToString(A()[:]) // invalid
    + tmp := A()
    + a := hex.EncodeToString(tmp[:])
    ```
- `fmt.Sprintf("%X", []byte)`
- `strings.ToUpper(hex.EncodeToString(bytes))` has even worse
performance.
2022-11-28 11:19:18 +00:00

54 lines
1.5 KiB
Go

// Copyright 2022 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package packages
import (
"encoding/hex"
"testing"
"github.com/stretchr/testify/assert"
)
const (
expectedMD5 = "e3bef03c5f3b7f6b3ab3e3053ed71e9c"
expectedSHA1 = "060b3b99f88e96085b4a68e095bc9e3d1d91e1bc"
expectedSHA256 = "6ccce4863b70f258d691f59609d31b4502e1ba5199942d3bc5d35d17a4ce771d"
expectedSHA512 = "7f70e439ba8c52025c1f06cdf6ae443c4b8ed2e90059cdb9bbbf8adf80846f185a24acca9245b128b226d61753b0d7ed46580a69c8999eeff3bc13a4d0bd816c"
)
func TestMultiHasherSums(t *testing.T) {
t.Run("Sums", func(t *testing.T) {
h := NewMultiHasher()
h.Write([]byte("gitea"))
hashMD5, hashSHA1, hashSHA256, hashSHA512 := h.Sums()
assert.Equal(t, expectedMD5, hex.EncodeToString(hashMD5))
assert.Equal(t, expectedSHA1, hex.EncodeToString(hashSHA1))
assert.Equal(t, expectedSHA256, hex.EncodeToString(hashSHA256))
assert.Equal(t, expectedSHA512, hex.EncodeToString(hashSHA512))
})
t.Run("State", func(t *testing.T) {
h := NewMultiHasher()
h.Write([]byte("git"))
state, err := h.MarshalBinary()
assert.NoError(t, err)
h2 := NewMultiHasher()
err = h2.UnmarshalBinary(state)
assert.NoError(t, err)
h2.Write([]byte("ea"))
hashMD5, hashSHA1, hashSHA256, hashSHA512 := h2.Sums()
assert.Equal(t, expectedMD5, hex.EncodeToString(hashMD5))
assert.Equal(t, expectedSHA1, hex.EncodeToString(hashSHA1))
assert.Equal(t, expectedSHA256, hex.EncodeToString(hashSHA256))
assert.Equal(t, expectedSHA512, hex.EncodeToString(hashSHA512))
})
}