Clang: Add one more test for SendDocumentTracker

Ensure that the document is not send with initial values. In that case,
the document was just loaded and has not any modified content yet.

Change-Id: I67ee8dcffe20779ef8294cf2668d0974b44f5bbb
Reviewed-by: Marco Bubke <marco.bubke@theqtcompany.com>

tests/unit/unittest/senddocumenttrackertest.cpp

@@ -133,6 +133,11 @@ TEST_F(SendDocumentTracker, SendRevisionIfRevisionIsDifferent)
     ASSERT_TRUE(tracker.shouldSendRevision(21));
 }
 
+TEST_F(SendDocumentTracker, DontSendRevisionWithDefaults)
+{
+    ASSERT_FALSE(tracker.shouldSendRevisionWithCompletionPosition(21, 33));
+}
+
 TEST_F(SendDocumentTracker, DontSendIfRevisionIsDifferentAndCompletionPositionIsEqualAndNoContentChange)
 {
     tracker.setLastSentRevision(46);