Index: trunk/test/unit/org/openstreetmap/josm/tools/TextTagParserTest.java
===================================================================
--- trunk/test/unit/org/openstreetmap/josm/tools/TextTagParserTest.java	(revision 5756)
+++ trunk/test/unit/org/openstreetmap/josm/tools/TextTagParserTest.java	(revision 5756)
@@ -0,0 +1,94 @@
+// License: GPL. For details, see LICENSE file.
+package org.openstreetmap.josm.tools;
+
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
+
+import org.junit.Assert;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.openstreetmap.josm.Main;
+import org.openstreetmap.josm.data.Preferences;
+
+public class TextTagParserTest {
+    @BeforeClass
+    public static void before() {
+        Main.pref = new Preferences();
+    }
+
+    @Test
+    public void testUnescape() {
+        String s, s1;
+        s = "\"2 3 4\"";       s1 = "2 3 4";
+        Assert.assertEquals(s1, TextTagParser.unescape(s));
+
+        s = "\"2 \\\"3\\\" 4\"";       s1 = "2 \"3\" 4";
+        Assert.assertEquals(s1, TextTagParser.unescape(s));
+        
+        s = "\"2 3 ===4===\"";       s1 = "2 3 ===4===";
+        Assert.assertEquals(s1, TextTagParser.unescape(s));
+
+        s = "\"2 3 \\\\\\\\===4===\"";       s1 = "2 3 \\\\===4===";
+        Assert.assertEquals(s1, TextTagParser.unescape(s));
+    }
+    
+    @Test
+    public void testTNformat() {
+        String txt = "   a  \t  1   \n\n\n  b=2 \t the value with \"quotes\"";
+        Map<String, String> correctTags = new HashMap<String, String>() { {
+            put("a", "1"); put("b=2", "the value with \"quotes\"");
+        }};
+        Map<String, String> tags = TextTagParser.readTagsFromText(txt);
+        Assert.assertEquals(correctTags, tags);
+    }
+
+    @Test
+    public void testEQformat() {
+        String txt = "key1=value key2=\"long value\" tag3=\"hotel \\\"Quote\\\"\"";
+        Map<String, String> correctTags = new HashMap<String, String>() { {
+            put("key1", "value"); put("key2", "long value");
+            put("tag3", "hotel \"Quote\"");
+        }};
+        Map<String, String> tags = TextTagParser.readTagsFromText(txt);
+        Assert.assertEquals(correctTags, tags);
+    }
+
+    @Test
+    public void testJSONformat() {
+        String txt;
+        Map<String, String> tags, correctTags;
+        txt = "{ \"a\":\"1\", \"b\":\"2 3 4\" }";
+        correctTags= new HashMap<String, String>() { {  put("a", "1"); put("b", "2 3 4"); }};
+        tags = TextTagParser.readTagsFromText(txt);
+        Assert.assertEquals(correctTags, tags);
+        
+        txt = "\"a\"  :     \"1 1 1\", \"b2\"  :\"2 \\\"3 qwe\\\" 4\"";
+        correctTags= new HashMap<String, String>() { { put("a", "1 1 1"); put("b2", "2 \"3 qwe\" 4");}};
+        tags = TextTagParser.readTagsFromText(txt);
+        Assert.assertEquals(correctTags, tags);
+        
+        txt = " \"aыыы\"   :    \"val\\\"\\\"\\\"ue1\"";
+        correctTags= new HashMap<String, String>() { { put("aыыы", "val\"\"\"ue1");} };
+        tags = TextTagParser.readTagsFromText(txt);
+        Assert.assertEquals(correctTags, tags);
+    }
+    
+    @Test
+    public void testFreeformat() {
+        String txt = "a 1 b=2 c=\"hello === \\\"\\\"world\"";
+        Map<String, String> correctTags = new HashMap<String, String>() { {
+            put("a", "1"); put("b", "2"); put("c", "hello === \"\"world");
+        }};
+        Map<String, String> tags = TextTagParser.readTagsFromText(txt);
+        Assert.assertEquals(correctTags, tags);
+    }
+    
+    @Test
+    public void errorDetect() {
+        String txt = "a=2 b=3 4";
+        Map<String, String> tags = TextTagParser.readTagsFromText(txt);
+        Assert.assertEquals(Collections.EMPTY_MAP, tags);
+        
+    }
+}