DO NOT MERGE: Send intro text with SmartForward

* We need to include the intro text (--Original Message--, etc.) to
  SmartForwards, and somehow this got in a past updat
* Add unit test for forwarding
* Fix unit test for reply so that it works localized

Backport of I8d92f00d37a434840ec3eb237f3901cd5dc7ad09

Bug: 2477988
Bug: 2685784
Change-Id: I2b6654413a8eb5ca900f958f49ec9eee5161a365

src/com/android/email/mail/transport/Rfc822Output.java

@@ -70,17 +70,16 @@ public class Rfc822Output {
         int flags = message.mFlags;
         boolean isReply = (flags & Message.FLAG_TYPE_REPLY) != 0;
         boolean isForward = (flags & Message.FLAG_TYPE_FORWARD) != 0;
-        String intro = body.mIntroText == null ? "" : body.mIntroText;
+        // For all forwards/replies, we add the intro text
+        if (isReply || isForward) {
+            String intro = body.mIntroText == null ? "" : body.mIntroText;
+            text += intro;
+        }
         if (!appendQuotedText) {
             // appendQuotedText is set to false for use by SmartReply/SmartForward in EAS.
-            // SmartReply doesn't appear to work properly, so we will still add the header into
+            // SmartForward doesn't put a break between the original and new text, so we add an LF
-            // the original message.
+            if (isForward) {
-            // SmartForward doesn't put any kind of break between the original and the new text,
+                text += "\n";
-            // so we add a CRLF
-            if (isReply) {
-                text += intro;
-            } else if (isForward) {
-                text += "\r\n";
             }
             return text;
         }
@@ -92,13 +91,11 @@ public class Rfc822Output {
             quotedText = matcher.replaceAll("\n");
         }
         if (isReply) {
-            text += intro;
             if (quotedText != null) {
                 Matcher matcher = PATTERN_START_OF_LINE.matcher(quotedText);
                 text += matcher.replaceAll(">");
             }
         } else if (isForward) {
-            text += intro;
             if (quotedText != null) {
                 text += quotedText;
             }

tests/src/com/android/email/mail/transport/Rfc822OutputTests.java

@@ -16,6 +16,7 @@
 
 package com.android.email.mail.transport;
 
+import com.android.email.R;
 import com.android.email.mail.MessagingException;
 import com.android.email.provider.EmailProvider;
 import com.android.email.provider.EmailContent.Attachment;
@@ -52,10 +53,11 @@ public class Rfc822OutputTests extends ProviderTestCase2<EmailProvider> {
     private static final String SUBJECT = "This is the subject";
     private static final String BODY = "This is the body.  This is also the body.";
     private static final String TEXT = "Here is some new text.";
-    private static final String REPLY_BODY_SHORT = "\n\n" + SENDER + " wrote:\n\n";
-    private static final String REPLY_BODY = REPLY_BODY_SHORT + ">" + BODY;
 
     private Context mMockContext;
+    private String mForwardIntro;
+    private String mReplyIntro;
+    private String mReplyBody;
 
     public Rfc822OutputTests () {
         super(EmailProvider.class, EmailProvider.EMAIL_AUTHORITY);
@@ -65,6 +67,10 @@ public class Rfc822OutputTests extends ProviderTestCase2<EmailProvider> {
     public void setUp() throws Exception {
         super.setUp();
         mMockContext = getMockContext();
+        mForwardIntro = mMockContext.getString(R.string.message_compose_fwd_header_fmt, SUBJECT,
+                SENDER, RECIPIENT_TO, RECIPIENT_CC);
+        mReplyIntro = mMockContext.getString(R.string.message_compose_reply_header_fmt, SENDER);
+        mReplyBody = mReplyIntro + ">" + BODY;
     }
 
     // TODO Create more tests here.  Specifically, we should test to make sure that forward works
@@ -73,16 +79,10 @@ public class Rfc822OutputTests extends ProviderTestCase2<EmailProvider> {
     // TODO Write test that ensures that bcc is handled properly (i.e. sent/not send depending
     // on the flag passed to writeTo
 
-    // TODO Localize the following test, which will not work properly in other than English
-    // speaking locales!
-
     /**
      * Test for buildBodyText().
      * Compare with expected values.
      * Also test the situation where the message has no body.
-     *
-     * WARNING: This test is NOT localized, so it will fail if run on a device in a
-     * non-English speaking locale!
      */
     public void testBuildBodyTextWithReply() {
         // Create the least necessary; sender, flags, and the body of the reply
@@ -91,18 +91,18 @@ public class Rfc822OutputTests extends ProviderTestCase2<EmailProvider> {
         msg.mFrom = SENDER;
         msg.mFlags = Message.FLAG_TYPE_REPLY;
         msg.mTextReply = BODY;
-        msg.mIntroText = REPLY_BODY_SHORT;
+        msg.mIntroText = mReplyIntro;
         msg.save(mMockContext);
 
         String body = Rfc822Output.buildBodyText(mMockContext, msg, true);
-        assertEquals(REPLY_BODY, body);
+        assertEquals(mReplyBody, body);
 
         // Save a different message with no reply body (so we reset the id)
         msg.mId = -1;
         msg.mTextReply = null;
         msg.save(mMockContext);
         body = Rfc822Output.buildBodyText(mMockContext, msg, true);
-        assertEquals(REPLY_BODY_SHORT, body);
+        assertEquals(mReplyIntro, body);
     }
 
     /**
@@ -117,18 +117,37 @@ public class Rfc822OutputTests extends ProviderTestCase2<EmailProvider> {
         msg.mFrom = SENDER;
         msg.mFlags = Message.FLAG_TYPE_REPLY;
         msg.mTextReply = BODY;
-        msg.mIntroText = REPLY_BODY_SHORT;
+        msg.mIntroText = mReplyIntro;
         msg.save(mMockContext);
 
         String body = Rfc822Output.buildBodyText(mMockContext, msg, false);
-        assertEquals(TEXT + REPLY_BODY_SHORT, body);
+        assertEquals(TEXT + mReplyIntro, body);
 
         // Save a different message with no reply body (so we reset the id)
         msg.mId = -1;
         msg.mTextReply = null;
         msg.save(mMockContext);
         body = Rfc822Output.buildBodyText(mMockContext, msg, false);
-        assertEquals(TEXT + REPLY_BODY_SHORT, body);
+        assertEquals(TEXT + mReplyIntro, body);
+    }
+
+    /**
+     * Test for buildBodyText().
+     * Compare with expected values.
+     */
+    public void testBuildBodyTextWithForward() {
+        Message msg = new Message();
+        msg.mText = TEXT;
+        msg.mFrom = SENDER;
+        msg.mTo = RECIPIENT_TO;
+        msg.mCc = RECIPIENT_CC;
+        msg.mSubject = SUBJECT;
+        msg.mFlags = Message.FLAG_TYPE_FORWARD;
+        msg.mTextReply = BODY;
+        msg.mIntroText = mForwardIntro;
+        msg.save(mMockContext);
+        String body = Rfc822Output.buildBodyText(mMockContext, msg, true);
+        assertEquals(TEXT + mForwardIntro + BODY, body);
     }
 
     public void testWriteToText() throws IOException, MessagingException {
@@ -201,6 +220,7 @@ public class Rfc822OutputTests extends ProviderTestCase2<EmailProvider> {
         assertNull(header.getField("content-disposition"));
     }
 
+    @SuppressWarnings("unchecked")
     public void testWriteToMixedPart() throws IOException, MessagingException {
         // Create a message with a mixed part
         Message msg = new Message();