diff -r 000000000000 -r 58ce0cd13d26 ide/editor/src/test/java/org/apidesign/bck2brwsr/ide/editor/JsniCommentTokenizerTest.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ide/editor/src/test/java/org/apidesign/bck2brwsr/ide/editor/JsniCommentTokenizerTest.java	Wed Feb 13 12:08:00 2013 +0100
@@ -0,0 +1,154 @@
+/**
+ * Back 2 Browser Bytecode Translator
+ * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. Look for COPYING file in the top folder.
+ * If not, see http://opensource.org/licenses/GPL-2.0.
+ */
+package org.apidesign.bck2brwsr.ide.editor;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import org.testng.Assert;
+import org.testng.annotations.Test;
+
+public class JsniCommentTokenizerTest {
+
+    private static class MockSink implements JsniCommentTokenizer.Sink {
+        final List<String> out = new ArrayList<String>();
+
+        public void javascript(String s) {
+            out.add("J " + s);
+        }
+
+        public void method(String clazz, String method, String signature) {
+            out.add("M " + clazz + "|" + method + "|" + signature);
+        }
+
+        public void field(String clazz, String field) {
+            out.add("F " + clazz + "|" + field);
+        }
+    }
+
+
+    @Test
+    public void testProcess_nop() throws IOException {
+        final String in = "foo bar";
+        final List<String> expected = new ArrayList<String>();
+        expected.add("J foo bar");
+
+        final JsniCommentTokenizer jsniCommentTokenizer = new JsniCommentTokenizer();
+        final MockSink out = new MockSink();
+        jsniCommentTokenizer.process(in, out);
+
+        Assert.assertEquals(expected, out.out);
+    }
+
+    @Test
+    public void testProcess_read_static_field() throws IOException {
+        final String in = " @com.google.gwt.examples.JSNIExample::myStaticField = val + \" and stuff\";";
+        final List<String> expected = new ArrayList<String>();
+        expected.add("J  ");
+        expected.add("F com.google.gwt.examples.JSNIExample|myStaticField");
+        expected.add("J  = val + \" and stuff\";");
+
+        final JsniCommentTokenizer jsniCommentTokenizer = new JsniCommentTokenizer();
+        final MockSink out = new MockSink();
+        jsniCommentTokenizer.process(in, out);
+
+        Assert.assertEquals(expected, out.out);
+    }
+
+    @Test
+    public void testProcess_write_instance_field() throws IOException {
+        final String in = " x.@com.google.gwt.examples.JSNIExample::myInstanceField = val + \" and stuff\";";
+        final List<String> expected = new ArrayList<String>();
+        expected.add("J  x.");
+        expected.add("F com.google.gwt.examples.JSNIExample|myInstanceField");
+        expected.add("J  = val + \" and stuff\";");
+
+        final JsniCommentTokenizer jsniCommentTokenizer = new JsniCommentTokenizer();
+        final MockSink out = new MockSink();
+        jsniCommentTokenizer.process(in, out);
+
+        Assert.assertEquals(expected, out.out);
+    }
+
+    @Test
+    public void testProcess_read_instance_field() throws IOException {
+        final String in = " var val = this.@com.google.gwt.examples.JSNIExample::myInstanceField;";
+        final List<String> expected = new ArrayList<String>();
+        expected.add("J  var val = this.");
+        expected.add("F com.google.gwt.examples.JSNIExample|myInstanceField");
+        expected.add("J ;");
+
+        final JsniCommentTokenizer jsniCommentTokenizer = new JsniCommentTokenizer();
+        final MockSink out = new MockSink();
+        jsniCommentTokenizer.process(in, out);
+
+        Assert.assertEquals(expected, out.out);
+    }
+
+
+    @Test
+    public void testProcess_static_method() throws IOException {
+        final String in = " @com.google.gwt.examples.JSNIExample::staticFoo(Ljava/lang/String;)(s);";
+        final List<String> expected = new ArrayList<String>();
+        expected.add("J  ");
+        expected.add("M com.google.gwt.examples.JSNIExample|staticFoo|Ljava/lang/String;");
+        expected.add("J (s);");
+
+        final JsniCommentTokenizer jsniCommentTokenizer = new JsniCommentTokenizer();
+        final MockSink out = new MockSink();
+        jsniCommentTokenizer.process(in, out);
+
+        Assert.assertEquals(expected, out.out);
+    }
+
+
+    @Test
+    public void testProcess_instance_method() throws IOException {
+        final String in = " x.@com.google.gwt.examples.JSNIExample::instanceFoo(Ljava/lang/String;)(s);";
+        final List<String> expected = new ArrayList<String>();
+        expected.add("J  x.");
+        expected.add("M com.google.gwt.examples.JSNIExample|instanceFoo|Ljava/lang/String;");
+        expected.add("J (s);");
+
+        final JsniCommentTokenizer jsniCommentTokenizer = new JsniCommentTokenizer();
+        final MockSink out = new MockSink();
+        jsniCommentTokenizer.process(in, out);
+
+        Assert.assertEquals(expected, out.out);
+    }
+
+
+    @Test
+    public void testProcess_multiline() throws IOException {
+        final String in =
+            " x.@com.google.gwt.examples.JSNIExample::instanceFoo(Ljava/lang/String;)(s);" +
+            " @com.google.gwt.examples.JSNIExample::myStaticField = val + \" and stuff\";";
+        final List<String> expected = new ArrayList<String>();
+        expected.add("J  x.");
+        expected.add("M com.google.gwt.examples.JSNIExample|instanceFoo|Ljava/lang/String;");
+        expected.add("J (s); ");
+        expected.add("F com.google.gwt.examples.JSNIExample|myStaticField");
+        expected.add("J  = val + \" and stuff\";");
+
+        final JsniCommentTokenizer jsniCommentTokenizer = new JsniCommentTokenizer();
+        final MockSink out = new MockSink();
+        jsniCommentTokenizer.process(in, out);
+
+        Assert.assertEquals(expected, out.out);
+    }
+}