9607750b5e
`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.
46 lines
1.6 KiB
Go
46 lines
1.6 KiB
Go
// Copyright 2022 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package packages
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import (
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"encoding/hex"
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"io"
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"strings"
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"testing"
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"github.com/stretchr/testify/assert"
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)
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func TestHashedBuffer(t *testing.T) {
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cases := []struct {
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MaxMemorySize int
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Data string
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HashMD5 string
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HashSHA1 string
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HashSHA256 string
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HashSHA512 string
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}{
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{5, "test", "098f6bcd4621d373cade4e832627b4f6", "a94a8fe5ccb19ba61c4c0873d391e987982fbbd3", "9f86d081884c7d659a2feaa0c55ad015a3bf4f1b2b0b822cd15d6c15b0f00a08", "ee26b0dd4af7e749aa1a8ee3c10ae9923f618980772e473f8819a5d4940e0db27ac185f8a0e1d5f84f88bc887fd67b143732c304cc5fa9ad8e6f57f50028a8ff"},
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{5, "testtest", "05a671c66aefea124cc08b76ea6d30bb", "51abb9636078defbf888d8457a7c76f85c8f114c", "37268335dd6931045bdcdf92623ff819a64244b53d0e746d438797349d4da578", "125d6d03b32c84d492747f79cf0bf6e179d287f341384eb5d6d3197525ad6be8e6df0116032935698f99a09e265073d1d6c32c274591bf1d0a20ad67cba921bc"},
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}
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for _, c := range cases {
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buf, err := CreateHashedBufferFromReader(strings.NewReader(c.Data), c.MaxMemorySize)
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assert.NoError(t, err)
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assert.EqualValues(t, len(c.Data), buf.Size())
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data, err := io.ReadAll(buf)
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assert.NoError(t, err)
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assert.Equal(t, c.Data, string(data))
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hashMD5, hashSHA1, hashSHA256, hashSHA512 := buf.Sums()
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assert.Equal(t, c.HashMD5, hex.EncodeToString(hashMD5))
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assert.Equal(t, c.HashSHA1, hex.EncodeToString(hashSHA1))
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assert.Equal(t, c.HashSHA256, hex.EncodeToString(hashSHA256))
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assert.Equal(t, c.HashSHA512, hex.EncodeToString(hashSHA512))
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assert.NoError(t, buf.Close())
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}
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}
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