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package digest
import (
"bytes"
"crypto/rand"
"io"
"testing"
)
func TestDigestVerifier(t *testing.T) {
p := make([]byte, 1<<20)
rand.Read(p)
digest := FromBytes(p)
verifier, err := NewDigestVerifier(digest)
if err != nil {
t.Fatalf("unexpected error getting digest verifier: %s", err)
}
io.Copy(verifier, bytes.NewReader(p))
if !verifier.Verified() {
t.Fatalf("bytes not verified")
}
}
// TestVerifierUnsupportedDigest ensures that unsupported digest validation is
// flowing through verifier creation.
func TestVerifierUnsupportedDigest(t *testing.T) {
unsupported := Digest("bean:0123456789abcdef")
_, err := NewDigestVerifier(unsupported)
if err == nil {
t.Fatalf("expected error when creating verifier")
}
if err != ErrDigestUnsupported {
t.Fatalf("incorrect error for unsupported digest: %v", err)
}
}
// TODO(stevvooe): Add benchmarks to measure bytes/second throughput for
// DigestVerifier.
//
// The relevant benchmark for comparison can be run with the following
// commands:
//
// go test -bench . crypto/sha1
//
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