add test class for Iso7816TLV class

OpenKeychain-Test/src/test/java/org/sufficientlysecure/keychain/util/Iso7816TLVTest.java

@@ -0,0 +1,99 @@
+/* Copyright (C) 2014 Vincent Breitmoser <v.breitmoser@mugenguild.com>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.sufficientlysecure.keychain.util;
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.shadows.ShadowLog;
+import org.spongycastle.util.encoders.Hex;
+import org.sufficientlysecure.keychain.util.Iso7816TLV.Iso7816CompositeTLV;
+
+@RunWith(RobolectricTestRunner.class)
+@org.robolectric.annotation.Config(emulateSdk = 18) // Robolectric doesn't yet support 19
+public class Iso7816TLVTest {
+
+    @Before
+    public void setUp() throws Exception {
+        ShadowLog.stream = System.out;
+    }
+
+    @Test
+    public void testDecode() throws Exception {
+
+        // this is an Application Related Data packet, received from my Yubikey
+        String input = "6e81dd4f10d27600012401020000000000000100005f520f0073000080000000000000000000007300c00af00000ff04c000ff00ffc106010800001103c206010800001103c306010800001103c407007f7f7f030303c53c1efdb4845ca242ca6977fddb1f788094fd3b430af1114c28a08d8c5afda81191cc50ca9bf51bc99fe8e6ca03a9d4d40e7b5925cd154813df381655b2c63c000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000cd0c5423590e5423590e5423590e9000";
+        byte[] data = Hex.decode(input);
+
+        Iso7816TLV tlv = Iso7816TLV.readSingle(data, true);
+        Assert.assertNotNull("tlv parse must succeed", tlv);
+
+        Assert.assertEquals("top packet must be 'application related data' tag", 0x6e, tlv.mT);
+        Assert.assertEquals("length must be correct", 221, tlv.mL);
+
+        Assert.assertTrue("top packet must be composite", tlv instanceof Iso7816CompositeTLV);
+
+        Iso7816CompositeTLV ctlv = (Iso7816CompositeTLV) tlv;
+
+        Assert.assertEquals("top packet must have 11 sub packets", 11, ctlv.mSubs.length);
+
+        Assert.assertEquals("sub packet #1 must have expected tag", 0x4f, ctlv.mSubs[0].mT);
+        Assert.assertEquals("sub packet #1 must have expected length", 16, ctlv.mSubs[0].mL);
+
+        Assert.assertEquals("sub packet #2 must have expected tag", 0x5f52, ctlv.mSubs[1].mT);
+        Assert.assertEquals("sub packet #2 must have expected length", 15, ctlv.mSubs[1].mL);
+
+        Assert.assertEquals("sub packet #3 must have expected tag", 0x73, ctlv.mSubs[2].mT);
+        Assert.assertEquals("sub packet #3 must have expected length", 0, ctlv.mSubs[2].mL);
+        Assert.assertTrue("sub packet #3 muse be composite", ctlv.mSubs[2] instanceof Iso7816CompositeTLV);
+
+        Assert.assertEquals("sub packet #4 must have expected tag", 0xc0, ctlv.mSubs[3].mT);
+        Assert.assertEquals("sub packet #4 must have expected length", 10, ctlv.mSubs[3].mL);
+
+        Assert.assertEquals("sub packet #5 must have expected tag", 0xc1, ctlv.mSubs[4].mT);
+        Assert.assertEquals("sub packet #5 must have expected length", 6, ctlv.mSubs[4].mL);
+
+        Assert.assertEquals("sub packet #6 must have expected tag", 0xc2, ctlv.mSubs[5].mT);
+        Assert.assertEquals("sub packet #6 must have expected length", 6, ctlv.mSubs[5].mL);
+
+        Assert.assertEquals("sub packet #7 must have expected tag", 0xc3, ctlv.mSubs[6].mT);
+        Assert.assertEquals("sub packet #7 must have expected length", 6, ctlv.mSubs[6].mL);
+
+        Assert.assertEquals("sub packet #8 must have expected tag", 0xc4, ctlv.mSubs[7].mT);
+        Assert.assertEquals("sub packet #8 must have expected length", 7, ctlv.mSubs[7].mL);
+
+        Assert.assertEquals("sub packet #9 must have expected tag", 0xc5, ctlv.mSubs[8].mT);
+        Assert.assertEquals("sub packet #9 must have expected length", 60, ctlv.mSubs[8].mL);
+
+        {
+            // this is my pubkey fingerprint
+            String fingerprint = "1efdb4845ca242ca6977fddb1f788094fd3b430a";
+            byte[] V1 = new byte[20];
+            System.arraycopy(ctlv.mSubs[8].mV, 0, V1, 0, 20);
+            Assert.assertArrayEquals("fingerprint must match", V1, Hex.decode(fingerprint));
+        }
+
+        Assert.assertEquals("sub packet #10 must have expected tag", 0xc6, ctlv.mSubs[9].mT);
+        Assert.assertEquals("sub packet #10 must have expected length", 60, ctlv.mSubs[9].mL);
+
+        Assert.assertEquals("sub packet #11 must have expected tag", 0xcd, ctlv.mSubs[10].mT);
+        Assert.assertEquals("sub packet #11 must have expected length", 12, ctlv.mSubs[10].mL);
+
+    }
+
+}