golang fallback_test 代码
文件路径：/src/crypto/sha1/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 sha1
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 := "0f58c2bb130f8182375f325c18342215255387e5"
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)
}
}