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Source file src/crypto/sha512/fallback_test.go

Documentation: crypto/sha512

  // 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.
  
  // +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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