Add test for reply quoting in wikify()

Change-Id: I273948bb67aa8069f4cbafea441ca27e8f70779f

gerrit-gwtexpui/src/test/java/com/google/gwtexpui/safehtml/client/SafeHtml_WikifyQuoteTest.java

@@ -0,0 +1,65 @@
+// Copyright (C) 2013 The Android Open Source Project
+//
+// 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 "<p>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 com.google.gwtexpui.safehtml.client;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotSame;
+
+public class SafeHtml_WikifyQuoteTest {
+  private static final String B = "<blockquote class=\"wikiQuote\">";
+  private static final String E = "</blockquote>";
+
+  private static String quote(String raw) {
+    return B + raw + E;
+  }
+
+  @Test
+  public void testQuote1() {
+    final SafeHtml o = html("> I'm happy\n > with quotes!\n\nSee above.");
+    final SafeHtml n = o.wikify();
+    assertNotSame(o, n);
+    assertEquals(
+        quote("I&#39;m happy\nwith quotes!")
+        + "<p>See above.</p>",
+      n.asString());
+  }
+
+  @Test
+  public void testQuote2() {
+    final SafeHtml o = html("See this said:\n\n > a quoted\n > string block\n\nOK?");
+    final SafeHtml n = o.wikify();
+    assertNotSame(o, n);
+    assertEquals(
+        "<p>See this said:</p>"
+        + quote("a quoted\nstring block")
+        + "<p>OK?</p>",
+      n.asString());
+  }
+
+  @Test
+  public void testNestedQuotes1() {
+    final SafeHtml o = html(" > > prior\n > \n > next\n");
+    final SafeHtml n = o.wikify();
+    assertEquals(
+      quote(quote("prior") + "next\n"),
+      n.asString());
+  }
+
+  private static SafeHtml html(String text) {
+    return new SafeHtmlBuilder().append(text).toSafeHtml();
+  }
+}