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Viewing changes to test/src/org/bouncycastle/asn1/test/TagTest.java

  • Committer: Brian Thomason
  • Date: 2011-12-20 17:20:32 UTC
  • Revision ID: brian.thomason@canonical.com-20111220172032-rdtm13jgdxtksacr
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test/src/org/bouncycastle/asn1/test/TagTest.java
 
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package org.bouncycastle.asn1.test;
 
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import org.bouncycastle.asn1.ASN1InputStream;
 
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import org.bouncycastle.asn1.ASN1TaggedObject;
 
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import org.bouncycastle.asn1.DERApplicationSpecific;
 
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import org.bouncycastle.asn1.ASN1Object;
 
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import org.bouncycastle.util.encoders.Base64;
 
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import org.bouncycastle.util.encoders.Hex;
 
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import org.bouncycastle.util.test.SimpleTest;
 
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import java.io.IOException;
 
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import java.security.SecureRandom;
 
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/**
 
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 * X.690 test example
 
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 */
 
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public class TagTest
 
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    extends SimpleTest
 
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{
 
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    byte[] longTagged = Base64.decode(
 
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                  "ZSRzIp8gEEZFRENCQTk4NzY1NDMyMTCfIQwyMDA2MDQwMTEyMzSUCCAFERVz"
 
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                + "A4kCAHEXGBkalAggBRcYGRqUCCAFZS6QAkRFkQlURUNITklLRVKSBQECAwQF"
 
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                + "kxAREhMUFRYXGBkalAggBREVcwOJAgBxFxgZGpQIIAUXGBkalAggBWUukAJE"
 
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                + "RZEJVEVDSE5JS0VSkgUBAgMEBZMQERITFBUWFxgZGpQIIAURFXMDiQIAcRcY"
 
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                + "GRqUCCAFFxgZGpQIIAVlLpACREWRCVRFQ0hOSUtFUpIFAQIDBAWTEBESExQV"
 
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                + "FhcYGRqUCCAFERVzA4kCAHEXGBkalAggBRcYGRqUCCAFFxgZGpQIIAUXGBka"
 
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                + "lAg=");
 
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    byte[] longAppSpecificTag = Hex.decode("5F610101");
 
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    public String getName()
 
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    {
 
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        return "Tag";
 
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    }
 
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    public void performTest()
 
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        throws IOException
 
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    {
 
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        ASN1InputStream aIn = new ASN1InputStream(longTagged);
 
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        DERApplicationSpecific app = (DERApplicationSpecific)aIn.readObject();
 
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        aIn = new ASN1InputStream(app.getContents());
 
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        app = (DERApplicationSpecific)aIn.readObject();
 
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        aIn = new ASN1InputStream(app.getContents());
 
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        ASN1TaggedObject tagged = (ASN1TaggedObject)aIn.readObject();
 
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        if (tagged.getTagNo() != 32)
 
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        {
 
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            fail("unexpected tag value found - not 32");
 
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        }
 
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        tagged = (ASN1TaggedObject)ASN1Object.fromByteArray(tagged.getEncoded());
 
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        if (tagged.getTagNo() != 32)
 
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        {
 
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            fail("unexpected tag value found on recode - not 32");
 
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        }
 
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        tagged = (ASN1TaggedObject)aIn.readObject();
 
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        if (tagged.getTagNo() != 33)
 
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        {
 
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            fail("unexpected tag value found - not 33");
 
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        }
 
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        tagged = (ASN1TaggedObject)ASN1Object.fromByteArray(tagged.getEncoded());
 
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        if (tagged.getTagNo() != 33)
 
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        {
 
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            fail("unexpected tag value found on recode - not 33");
 
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        }
 
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        aIn = new ASN1InputStream(longAppSpecificTag);
 
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        app = (DERApplicationSpecific)aIn.readObject();
 
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        if (app.getApplicationTag() != 97)
 
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        {
 
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            fail("incorrect tag number read");
 
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        }
 
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        app = (DERApplicationSpecific)ASN1Object.fromByteArray(app.getEncoded());
 
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        if (app.getApplicationTag() != 97)
 
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        {
 
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            fail("incorrect tag number read on recode");
 
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        }
 
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        SecureRandom sr = new SecureRandom();
 
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        for (int i = 0; i < 100; ++i)
 
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        {
 
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            int testTag = sr.nextInt() >>> (1 + (sr.nextInt() >>> 1) % 26);
 
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            app = new DERApplicationSpecific(testTag, new byte[]{ 1 });
 
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            app = (DERApplicationSpecific)ASN1Object.fromByteArray(app.getEncoded());
 
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            if (app.getApplicationTag() != testTag)
 
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            {
 
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                fail("incorrect tag number read on recode (random test value: " + testTag + ")");
 
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            }
 
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        }
 
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    }
 
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    public static void main(
 
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        String[]    args)
 
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    {
 
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        runTest(new TagTest());
 
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    }
 
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}