Merge pull request #203 from andriydruk/fix/txt-record-parsing

Fix TXT record parsing

Author: andriydruk

Diff for: dnssd/src/main/java/com/github/druk/dnssd/DNSSD.java

@@ -637,7 +637,7 @@ static Map<String, String> parseTXTRecords(TXTRecord record) {
         Map<String, String> result = new HashMap<>(record.size());
         for (int i = 0; i < record.size(); i++) {
             try {
-                if (!TextUtils.isEmpty(record.getKey(i)) && TextUtils.isEmpty(record.getValueAsString(i))) {
+                if (!TextUtils.isEmpty(record.getKey(i))) {
                     result.put(record.getKey(i), record.getValueAsString(i));
                 }
             } catch (Exception e) {

Diff for: dnssd/src/test/java/com/github/druk/dnssd/DnssdTest.java

@@ -15,6 +15,7 @@
  */
 package com.github.druk.dnssd;
 
+import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -28,11 +29,14 @@
 import android.content.Context;
 import android.os.Build;
 import android.os.Handler;
+import android.text.TextUtils;
+import android.util.Log;
 
 import java.net.Inet4Address;
 import java.net.Inet6Address;
 import java.net.InetAddress;
 import java.util.HashMap;
+import java.util.Map;
 
 import static org.mockito.Matchers.any;
 import static org.mockito.Matchers.anyInt;
@@ -220,4 +224,38 @@ public void test_query_records_failure() throws DNSSDException {
         verify(queryListener).operationFailed(any(DNSSDService.class), eq(0));
     }
 
+    @Test
+    public void test_txt_record_parse_empty() {
+        TXTRecord record = new TXTRecord();
+        Map<String, String> map = DNSSD.parseTXTRecords(record);
+        Assert.assertTrue(map.isEmpty());
+    }
+
+    @Test
+    public void test_txt_record_parse_empty_value() {
+        TXTRecord record = new TXTRecord();
+        record.set("key", (String) null);
+        Map<String, String> map = DNSSD.parseTXTRecords(record);
+        Assert.assertEquals(map.size(), 1);
+        Assert.assertNull(map.get("key"));
+    }
+
+    @Test
+    public void test_txt_record_parse_with_string_value() {
+        TXTRecord record = new TXTRecord();
+        record.set("key", "value");
+        Map<String, String> map = DNSSD.parseTXTRecords(record);
+        Assert.assertEquals(map.size(), 1);
+        Assert.assertEquals(map.get("key"), "value");
+    }
+
+    @Test
+    public void test_txt_record_parse_with_byte_value() {
+        TXTRecord record = new TXTRecord();
+        record.set("key", "value".getBytes());
+        Map<String, String> map = DNSSD.parseTXTRecords(record);
+        Assert.assertEquals(map.size(), 1);
+        Assert.assertEquals(map.get("key"), "value");
+    }
+
 }