go fallback_test 源码
golang fallback_test 代码
文件路径：/src/crypto/sha512/fallback_test.go
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build s390x
package sha512
import (
"fmt"
"io"
"testing"
)
// Tests the fallback code path in case the optimized asm
// implementation cannot be used.
// See also TestBlockGeneric.
func TestGenericPath(t *testing.T) {
if useAsm == false {
t.Skipf("assembly implementation unavailable")
}
useAsm = false
defer func() { useAsm = true }()
c := New()
in := "ΑΒΓΔΕϜΖΗΘΙΚΛΜΝΞΟΠϺϘΡΣΤΥΦΧΨΩ"
gold := "6922e319366d677f34c504af31bfcb29" +
"e531c125ecd08679362bffbd6b6ebfb9" +
"0dcc27dfc1f3d3b16a16c0763cf43b91" +
"40bbf9bbb7233724e9a0c6655b185d76"
if _, err := io.WriteString(c, in); err != nil {
t.Fatalf("could not write to c: %v", err)
}
out := fmt.Sprintf("%x", c.Sum(nil))
if out != gold {
t.Fatalf("mismatch: got %s, wanted %s", out, gold)
}
}
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