githaven/modules/packages/hashed_buffer_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

47 lines
1.6 KiB
Go

// Copyright 2022 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package packages
import (
"encoding/hex"
"io"
"strings"
"testing"
"github.com/stretchr/testify/assert"
)
func TestHashedBuffer(t *testing.T) {
cases := []struct {
MaxMemorySize int
Data string
HashMD5 string
HashSHA1 string
HashSHA256 string
HashSHA512 string
}{
{5, "test", "098f6bcd4621d373cade4e832627b4f6", "a94a8fe5ccb19ba61c4c0873d391e987982fbbd3", "9f86d081884c7d659a2feaa0c55ad015a3bf4f1b2b0b822cd15d6c15b0f00a08", "ee26b0dd4af7e749aa1a8ee3c10ae9923f618980772e473f8819a5d4940e0db27ac185f8a0e1d5f84f88bc887fd67b143732c304cc5fa9ad8e6f57f50028a8ff"},
{5, "testtest", "05a671c66aefea124cc08b76ea6d30bb", "51abb9636078defbf888d8457a7c76f85c8f114c", "37268335dd6931045bdcdf92623ff819a64244b53d0e746d438797349d4da578", "125d6d03b32c84d492747f79cf0bf6e179d287f341384eb5d6d3197525ad6be8e6df0116032935698f99a09e265073d1d6c32c274591bf1d0a20ad67cba921bc"},
}
for _, c := range cases {
buf, err := CreateHashedBufferFromReader(strings.NewReader(c.Data), c.MaxMemorySize)
assert.NoError(t, err)
assert.EqualValues(t, len(c.Data), buf.Size())
data, err := io.ReadAll(buf)
assert.NoError(t, err)
assert.Equal(t, c.Data, string(data))
hashMD5, hashSHA1, hashSHA256, hashSHA512 := buf.Sums()
assert.Equal(t, c.HashMD5, hex.EncodeToString(hashMD5))
assert.Equal(t, c.HashSHA1, hex.EncodeToString(hashSHA1))
assert.Equal(t, c.HashSHA256, hex.EncodeToString(hashSHA256))
assert.Equal(t, c.HashSHA512, hex.EncodeToString(hashSHA512))
assert.NoError(t, buf.Close())
}
}