public void BothModifiedExampleFormTextWorksWithConflict()
        {
            const string ancestor = @"<?xml version='1.0' encoding='utf-8'?>
            <lift version='0.10' producer='WeSay 1.0.0.0'>
            <entry id='test'  guid='F169EB3D-16F2-4eb0-91AA-FDB91636F8F6'>
            <sense id='123'>
             <example>
            <form lang='chorus'>
              <text>This is my example sentence.</text>
            </form>
              </example>
            </sense>
            </entry>
            </lift>";
            var ours = ancestor.Replace(@"This is my example", @"This was your example");
            var theirs = ancestor.Replace(@"This is my example", @"It's mine don't touch it.");

            using (var oursTemp = new TempFile(ours))
            using (var theirsTemp = new TempFile(theirs))
            using (var ancestorTemp = new TempFile(ancestor))
            {
                var listener = new ListenerForUnitTests();
                var situation = new NullMergeSituation();
                var mergeOrder = new MergeOrder(oursTemp.Path, ancestorTemp.Path, theirsTemp.Path, situation) { EventListener = listener };
                XmlMergeService.Do3WayMerge(mergeOrder, new LiftEntryMergingStrategy(mergeOrder),
                    false,
                    "header",
                    "entry", "guid");
                var result = File.ReadAllText(mergeOrder.pathToOurs);
                Assert.AreEqual(1, listener.Conflicts.Count);
                var warning = listener.Conflicts[0];
                Assert.AreEqual(typeof(XmlTextBothEditedTextConflict), warning.GetType(), warning.ToString());
                XmlTestHelper.AssertXPathMatchesExactlyOne(result, "//example/form");
            }
        }

        public void BothAddedHeaderButWithDifferentContentInEach()
        {
            const string ancestor = @"<?xml version='1.0' encoding='utf-8'?>
                    <lift version='0.10' producer='WeSay 1.0.0.0'>
                        <entry id='parent' guid='c1ed1fa3-e382-11de-8a39-0800200c9a66' >
                            <lexical-unit>
                                <form lang='a'>
                                    <text>form parent</text>
                                </form>
                            </lexical-unit>
                         </entry>
                    </lift>";
            var alpha = ancestor.Replace("<entry id", "<header><description>alphastuff</description></header><entry id");
            var beta = ancestor.Replace("<entry id", "<header><ranges>betastuff</ranges></header><entry id");

            using (var oursTemp = new TempFile(alpha))
            using (var theirsTemp = new TempFile(beta))
            using (var ancestorTemp = new TempFile(ancestor))
            {
                var listener = new ListenerForUnitTests();
                var situation = new NullMergeSituation();
                var mergeOrder = new MergeOrder(oursTemp.Path, ancestorTemp.Path, theirsTemp.Path, situation) { EventListener = listener };
                XmlMergeService.Do3WayMerge(mergeOrder, new LiftEntryMergingStrategy(mergeOrder),
                    false,
                    "header",
                    "entry",
                    "guid");
                var result = File.ReadAllText(mergeOrder.pathToOurs);
                Assert.IsTrue(result.Contains("<header>"));
                Assert.IsTrue(result.Contains("<description>"));
                Assert.IsTrue(result.Contains("<ranges>"));
                listener.AssertExpectedChangesCount(2);
            }
        }

        public void OneAddedOneTranslationOtherEditedFormText()
        {
            const string ancestor = @"<?xml version='1.0' encoding='utf-8'?>
            <lift version='0.10' producer='WeSay 1.0.0.0'>
            <entry id='test'  guid='F169EB3D-16F2-4eb0-91AA-FDB91636F8F6'>
            <sense id='123'>
             <example>
            <form lang='chorus'>
              <text>This is my example sentence.</text>
            </form>
              </example>
            </sense>
            </entry>
            </lift>";
            var ours = ancestor.Replace(@"This is my example", @"This was your example");
            var theirs = ancestor.Replace(@"</example>", @"<form lang='en'><text>hello new entry</text></form></example>");

            using (var oursTemp = new TempFile(ours))
            using (var theirsTemp = new TempFile(theirs))
            using (var ancestorTemp = new TempFile(ancestor))
            {
                var listener = new ListenerForUnitTests();
                var situation = new NullMergeSituation();
                var mergeOrder = new MergeOrder(oursTemp.Path, ancestorTemp.Path, theirsTemp.Path, situation) { EventListener = listener };
                XmlMergeService.Do3WayMerge(mergeOrder, new LiftEntryMergingStrategy(mergeOrder),
                    false,
                    "header",
                    "entry", "guid");
                var result = File.ReadAllText(mergeOrder.pathToOurs);
                XmlTestHelper.AssertXPathMatchesExactlyOne(result, "//example");
                AssertThatXmlIn.String(result).HasSpecifiedNumberOfMatchesForXpath("//example/form", 2);
            }
        }

        public void Conflict_TheirsAppearsInCollisionNote()
        {
            const string ours = @"<?xml version='1.0' encoding='utf-8'?>
                    <lift version='0.10' producer='WeSay 1.0.0.0'>
                        <entry id='lexicalformcollission' guid='c1ed1fa7-e382-11de-8a39-0800200c9a66' >
                            <lexical-unit>
                                <form lang='x'>
                                    <text>ours</text>
                                </form>
                            </lexical-unit>
                        </entry>
                    </lift>";

            const string theirs = @"<?xml version='1.0' encoding='utf-8'?>
                    <lift version='0.10' producer='WeSay 1.0.0.0'>
                        <entry id='lexicalformcollission' guid='c1ed1fa7-e382-11de-8a39-0800200c9a66' >
                            <lexical-unit>
                                <form lang='x'>
                                    <text>theirs</text>
                                </form>
                            </lexical-unit>
                        </entry>
                    </lift>";
            const string ancestor = @"<?xml version='1.0' encoding='utf-8'?>
                    <lift version='0.10' producer='WeSay 1.0.0.0'>
                        <entry id='lexicalformcollission' guid='c1ed1fa7-e382-11de-8a39-0800200c9a66' />
                    </lift>";

            using (var oursTemp = new TempFile(ours))
            using (var theirsTemp = new TempFile(theirs))
            using (var ancestorTemp = new TempFile(ancestor))
            {
                var listener = new ListenerForUnitTests();
                var situation = new NullMergeSituation();
                var mergeOrder = new MergeOrder(oursTemp.Path, ancestorTemp.Path, theirsTemp.Path, situation) { EventListener = listener };
                XmlMergeService.Do3WayMerge(mergeOrder, new PoorMansMergeStrategy(),
                    false,
                    "header",
                    "entry", "guid");
                var result = File.ReadAllText(mergeOrder.pathToOurs);
                XmlTestHelper.AssertXPathMatchesExactlyOne(result, "lift/entry[@id='lexicalformcollission']");
                XmlTestHelper.AssertXPathMatchesExactlyOne(result, "lift/entry");//just one
                XmlTestHelper.AssertXPathMatchesExactlyOne(result, "lift/entry/field[@type='mergeConflict']/trait[@name = 'looserData']");
                XmlTestHelper.AssertXPathMatchesExactlyOne(result, "lift/entry/field[@type='mergeConflict' and @dateCreated]");
            }
        }

        public void BothAddedMainItemButWithDifferentContentHasOneConflictReport()
        {
            const string ancestor = @"<?xml version='1.0' encoding='utf-8'?>
                    <lift version='0.10' producer='WeSay 1.0.0.0'>
                        <entry id='noChangesInEither' guid='c1ed1f9d-e382-11de-8a39-0800200c9a66' />
                    </lift>";
            const string ours = @"<?xml version='1.0' encoding='utf-8'?>
                    <lift version='0.10' producer='WeSay 1.0.0.0'>
                        <entry id='noChangesInEither' guid='c1ed1f9d-e382-11de-8a39-0800200c9a66' />
                        <entry id='addedByBoth' guid='c1ed1f9e-e382-11de-8a39-0800200c9a66' >
                            <sense id='somesense'>
                                 <gloss lang='a'>
                                    <text>editedByUs</text>
                                 </gloss>
                            </sense>
                        </entry>
                    </lift>";
            const string theirs = @"<?xml version='1.0' encoding='utf-8'?>
                    <lift version='0.10' producer='WeSay 1.0.0.0'>
                        <entry id='noChangesInEither' guid='c1ed1f9d-e382-11de-8a39-0800200c9a66' />
                        <entry id='addedByBoth' guid='c1ed1f9e-e382-11de-8a39-0800200c9a66' >
                            <sense id='somesense'>
                                 <gloss lang='a'>
                                    <text>editedByThem</text>
                                 </gloss>
                            </sense>
                        </entry>
                    </lift>";

            // We win merge situation.
            MergeSituation mergeSit = new NullMergeSituation();
            DoMergeWithLiftEntryMergingStrategy(ancestor, ours, theirs,
                mergeSit,
                new[] { "lift/entry[@id='addedByBoth']/sense/gloss/text[text()='editedByUs']" }, new[] { "lift/entry[@id='addedByBoth']/sense/gloss/text[text()='editedByThem']" },
                1, new List<Type> { typeof(XmlTextBothAddedTextConflict) },
                4, new List<Type> { typeof(XmlAttributeBothAddedReport), typeof(XmlAttributeBothAddedReport), typeof(XmlAttributeBothAddedReport), typeof(XmlAttributeBothAddedReport) });

            // They win merge situation.
            mergeSit = new NullMergeSituationTheyWin();
            DoMergeWithLiftEntryMergingStrategy(ancestor, ours, theirs,
                mergeSit,
                new[] { "lift/entry[@id='addedByBoth']/sense/gloss/text[text()='editedByThem']" }, new[] { "lift/entry[@id='addedByBoth']/sense/gloss/text[text()='editedByUs']" },
                1, new List<Type> { typeof(XmlTextBothAddedTextConflict) },
                4, new List<Type> { typeof(XmlAttributeBothAddedReport), typeof(XmlAttributeBothAddedReport), typeof(XmlAttributeBothAddedReport), typeof(XmlAttributeBothAddedReport) });
        }

 public void RangeSectionMergedCorrectly()
 {
     using (var oursTemp = new TempFile(_ours))
     using (var theirsTemp = new TempFile(_theirs))
     using (var ancestorTemp = new TempFile(_ancestor))
     {
         var listener = new ListenerForUnitTests();
         var situation = new NullMergeSituation();
         var mergeOrder = new MergeOrder(oursTemp.Path, ancestorTemp.Path, theirsTemp.Path, situation) { EventListener = listener };
         XmlMergeService.Do3WayMerge(mergeOrder, new LiftEntryMergingStrategy(mergeOrder),
             false,
             "header",
             "entry", "guid");
         var result = File.ReadAllText(mergeOrder.pathToOurs);
         XmlTestHelper.AssertXPathMatchesExactlyOne(result, "lift/entry[@id='usOnly']");
         AssertThatXmlIn.String(result).HasSpecifiedNumberOfMatchesForXpath(@"lift/header/ranges/range", 4);
     }
 }

        public void OneEditedExampleWhileOtherAddedTranslation_MergesButRaiseWarning()
        {
            const string ancestor = @"<?xml version='1.0' encoding='utf-8'?>
            <lift version='0.10' producer='WeSay 1.0.0.0'>
            <entry id='test'  guid='F169EB3D-16F2-4eb0-91AA-FDB91636F8F6'>
            <sense id='123'>
             <example>
            <form lang='chorus'>
              <text>This is my example sentence.</text>
            </form>
              </example>
            </sense>
            </entry>
            </lift>";

            var ours = ancestor.Replace("This is my", "This is our");
            var theirs = ancestor.Replace("</example>","<translation><form lang='en'><text>hello</text></form></translation></example>");

            using (var oursTemp = new TempFile(ours))
            using (var theirsTemp = new TempFile(theirs))
            using (var ancestorTemp = new TempFile(ancestor))
            {
                var listener = new ListenerForUnitTests();
                var situation = new NullMergeSituation();
                var mergeOrder = new MergeOrder(oursTemp.Path, ancestorTemp.Path, theirsTemp.Path, situation)
                    { EventListener = listener };
                XmlMergeService.Do3WayMerge(mergeOrder, new LiftEntryMergingStrategy(mergeOrder),
                    false,
                    "header",
                    "entry", "guid");
                var result = File.ReadAllText(mergeOrder.pathToOurs);
                Assert.AreEqual(1, listener.Conflicts.Count);
                var warning = listener.Warnings[0];
                Assert.AreEqual(typeof(BothEditedDifferentPartsOfDependentPiecesOfDataWarning), warning.GetType(), warning.ToString());
                XmlTestHelper.AssertXPathMatchesExactlyOne(result, "//example");
            }
        }

        private void TestBodyMerge(string ancestorBody, string ourBody, string theirBody, Action<string> testsOnResultingFile, Action<ListenerForUnitTests> testsOnEventListener )
        {
            string ancestor = @"<?xml version='1.0' encoding='utf-8'?><html><body>"+ancestorBody+"</body></html>";
            string theirs = @"<?xml version='1.0' encoding='utf-8'?><html><body>" + theirBody + "</body></html>";
            string ours = @"<?xml version='1.0' encoding='utf-8'?><html><body>" + ourBody + "</body></html>";

            using (var oursTemp = new TempFile(ours))
            using (var theirsTemp = new TempFile(theirs))
            using (var ancestorTemp = new TempFile(ancestor))
            {
                var listener = new ListenerForUnitTests();
                var situation = new NullMergeSituation();
                var mergeOrder = new MergeOrder(oursTemp.Path, ancestorTemp.Path, theirsTemp.Path, situation) { EventListener = listener };
                new Bloom_ChorusPlugin.BloomHtmlFileTypeHandler().Do3WayMerge(mergeOrder);

                testsOnResultingFile(mergeOrder.pathToOurs);
                testsOnEventListener(listener);
            }
        }

        private MergeResult DoMerge(string commonAncestor, string ourContent, string theirContent)
        {
            var result = new MergeResult();
            using (var ours = new TempFile(ourContent))
            using (var theirs = new TempFile(theirContent))
            using (var ancestor = new TempFile(commonAncestor))
            {
                var situation = new NullMergeSituation();
                var mergeOrder = new MergeOrder(ours.Path, ancestor.Path, theirs.Path, situation);
                result.listener = new ListenerForUnitTests();
                mergeOrder.EventListener = result.listener;

                new BloomHtmlFileTypeHandler().Do3WayMerge(mergeOrder);
                result.resultString = File.ReadAllText(ours.Path);
            }
            return result;
        }

        public void NewEntryFromUs_HasNoChangeReports()
        {
            const string ancestor = @"<?xml version='1.0' encoding='utf-8'?>
                    <lift version='0.10' producer='WeSay 1.0.0.0'>
                        <entry id='commonOldie' guid='c1ecf897-e382-11de-8a39-0800200c9a66' />
                    </lift>";
            const string ours = @"<?xml version='1.0' encoding='utf-8'?>
                    <lift version='0.10' producer='WeSay 1.0.0.0'>
                        <entry id='ourNew' guid='c1ecf898-e382-11de-8a39-0800200c9a66' />
                        <entry id='commonOldie' guid='c1ecf897-e382-11de-8a39-0800200c9a66' />
                    </lift>";
            const string theirs = @"<?xml version='1.0' encoding='utf-8'?>
                    <lift version='0.10' producer='WeSay 1.0.0.0'>
                        <entry id='commonOldie' guid='c1ecf897-e382-11de-8a39-0800200c9a66' />
                    </lift>";

            using (var oursTemp = new TempFile(ours))
            using (var theirsTemp = new TempFile(theirs))
            using (var ancestorTemp = new TempFile(ancestor))
            {
                var listener = new ListenerForUnitTests();
                var situation = new NullMergeSituation();
                var mergeOrder = new MergeOrder(oursTemp.Path, ancestorTemp.Path, theirsTemp.Path, situation) { EventListener = listener };
                XmlMergeService.Do3WayMerge(mergeOrder, new DropTheirsMergeStrategy(),
                    false,
                    "header",
                    "entry", "guid");
                var result = File.ReadAllText(mergeOrder.pathToOurs);
                XmlTestHelper.AssertXPathMatchesExactlyOne(result, "lift/entry[@id='ourNew']");
                listener.AssertExpectedConflictCount(0);
                listener.AssertExpectedChangesCount(0);
            }
        }

        public void NewStyle_DoomedByUsEditedByThem_HasOneConflict()
        {
            // New Style means the deleted entry was really removed from the file, not just marked as deleted.
            const string ancestor = @"<?xml version='1.0' encoding='utf-8'?>
                    <lift version='0.10' producer='WeSay 1.0.0.0'>
                        <entry id='noChangesInEither' guid='c1ed1f9b-e382-11de-8a39-0800200c9a66' >
                            <lexical-unit>
                                <form lang='a'>
                                    <text>form a</text>
                                </form>
                            </lexical-unit>
                         </entry>
                        <entry id='doomedByUsEditedByThem' guid='c1ed1f9c-e382-11de-8a39-0800200c9a66' >
                            <sense>
                                 <gloss lang='a'>
                                    <text>original</text>
                                 </gloss>
                            </sense>
                        </entry>
                    </lift>";
            const string ours = @"<?xml version='1.0' encoding='utf-8'?>
                    <lift version='0.10' producer='WeSay 1.0.0.0'>
                        <entry id='noChangesInEither' guid='c1ed1f9b-e382-11de-8a39-0800200c9a66' >
                            <lexical-unit>
                                <form lang='a'>
                                    <text>form a</text>
                                </form>
                            </lexical-unit>
                         </entry>
                    </lift>";

            const string theirs = @"<?xml version='1.0' encoding='utf-8'?>
                    <lift version='0.10' producer='WeSay 1.0.0.0'>
                        <entry id='noChangesInEither' guid='c1ed1f9b-e382-11de-8a39-0800200c9a66' >
                            <lexical-unit>
                                <form lang='a'>
                                    <text>form a</text>
                                </form>
                            </lexical-unit>
                         </entry>
                        <entry id='doomedByUsEditedByThem' guid='c1ed1f9c-e382-11de-8a39-0800200c9a66' >
                            <sense>
                                 <gloss lang='a'>
                                    <text>newByThem</text>
                                 </gloss>
                            </sense>
                        </entry>

                    </lift>";

            var listener = new ListenerForUnitTests();
            using (var oursTemp = new TempFile(ours))
            using (var theirsTemp = new TempFile(theirs))
            using (var ancestorTemp = new TempFile(ancestor))
            {
                var situation = new NullMergeSituation();
                var mergeOrder = new MergeOrder(oursTemp.Path, ancestorTemp.Path, theirsTemp.Path, situation) { EventListener = listener };
                XmlMergeService.Do3WayMerge(mergeOrder, new DropTheirsMergeStrategy(),
                    false,
                    "header",
                    "entry", "guid");
                var result = File.ReadAllText(mergeOrder.pathToOurs);
                Assert.IsTrue(result.ToLower().Contains("utf-8"));
            }
            listener.AssertExpectedChangesCount(0);
            listener.AssertExpectedConflictCount(1);
            listener.AssertFirstConflictType<RemovedVsEditedElementConflict>();
        }

        public void OneAddedOneTranslationWhileOtherAddedAnother_Merged()
        {
            const string ancestor = @"<?xml version='1.0' encoding='utf-8'?>
            <lift version='0.10' producer='WeSay 1.0.0.0'>
            <entry id='test'  guid='F169EB3D-16F2-4eb0-91AA-FDB91636F8F6'>
            <sense id='123'>
             <example>
            <form lang='chorus'>
              <text>This is my example sentence.</text>
            </form>
              </example>
            </sense>
            </entry>
            </lift>";

            var ours = ancestor.Replace("</example>", "<translation><form lang='tp'><text>Dispela em i sentens bilong mi.</text></form></translation></example>");
            var theirs = ancestor.Replace("</example>", "<translation><form lang='en'><text>hello</text></form></translation></example>");

            using (var oursTemp = new TempFile(ours))
            using (var theirsTemp = new TempFile(theirs))
            using (var ancestorTemp = new TempFile(ancestor))
            {
                var listener = new ListenerForUnitTests();
                var situation = new NullMergeSituation();
                var mergeOrder = new MergeOrder(oursTemp.Path, ancestorTemp.Path, theirsTemp.Path, situation)
                    { EventListener = listener };
                XmlMergeService.Do3WayMerge(mergeOrder, new LiftEntryMergingStrategy(mergeOrder),
                    false,
                    "header",
                    "entry", "guid");
                var result = File.ReadAllText(mergeOrder.pathToOurs);
                XmlTestHelper.AssertXPathMatchesExactlyOne(result, "//example");
            }
        }

        public void UnchangedEntryInBoth_NotDuplicated()
        {
            const string all = @"<?xml version='1.0' encoding='utf-8'?>
                    <lift version='0.10' producer='WeSay 1.0.0.0'>
                        <entry id='sameInBoth' guid='c1ed1f92-e382-11de-8a39-0800200c9a66' >
                            <lexical-unit>
                                <form lang='a'>
                                    <text>form a</text>
                                </form>
                            </lexical-unit>
                         </entry>
                    </lift>";

            using (var oursTemp = new TempFile(all))
            using (var theirsTemp = new TempFile(all))
            using (var ancestorTemp = new TempFile(all))
            {
                var listener = new ListenerForUnitTests();
                var situation = new NullMergeSituation();
                var mergeOrder = new MergeOrder(oursTemp.Path, ancestorTemp.Path, theirsTemp.Path, situation) { EventListener = listener };
                XmlMergeService.Do3WayMerge(mergeOrder, new DropTheirsMergeStrategy(),
                    false,
                    "header",
                    "entry", "guid");
                var result = File.ReadAllText(mergeOrder.pathToOurs);
                XmlTestHelper.AssertXPathMatchesExactlyOne(result, "lift/entry[@id='sameInBoth']");
                XmlTestHelper.AssertXPathMatchesExactlyOne(result, "lift/entry/lexical-unit");
                XmlTestHelper.AssertXPathMatchesExactlyOne(result, "lift/entry/lexical-unit/form/text");
            }
        }

        public void Merge_AncestorAndOursSame_ResultHasTheirsAlso()
        {
            const string ours = @"<?xml version='1.0' encoding='utf-8'?>
                <lift version='0.10' producer='WeSay 1.0.0.0'>
                    <entry
                        dateCreated='2011-03-09T17:08:44Z'
                        dateModified='2012-05-18T08:31:54Z'
                        id='00853b73-fda2-4b12-8a89-6957cc7e7e79'
                        guid='00853b73-fda2-4b12-8a89-6957cc7e7e79'>
                        <lexical-unit>
                            <form
                                lang='ldb-fonipa-x-emic'>
                                <text>asatɛn</text>
                            </form>
                        </lexical-unit>

                    </entry>
                </lift>";

            const string theirs = @"<?xml version='1.0' encoding='utf-8'?>
                <lift version='0.10' producer='WeSay 1.0.0.0'>
                    <entry
                        id='00853b73-fda2-4b12-8a89-6957cc7e7e79'
                        dateCreated='2011-03-09T05:08:44Z'
                        dateModified='2012-05-14T02:38:00Z'
                        guid='00853b73-fda2-4b12-8a89-6957cc7e7e79'>
                        <lexical-unit>
                            <form
                                lang='ldb-fonipa-x-emic'>
                                <text>asatɛn</text>
                            </form>
                            <form
                                lang='ldb-Zxxx-x-audio'>
                                <text>asatɛn-63472603074018.wav</text>
                            </form>
                        </lexical-unit>
                    </entry>
                </lift>";

            const string ancestor = @"<?xml version='1.0' encoding='utf-8'?>
                <lift version='0.10' producer='WeSay 1.0.0.0'>
                    <entry
                        dateCreated='2011-03-09T17:08:44Z'
                        dateModified='2011-04-08T16:53:45Z'
                        id='00853b73-fda2-4b12-8a89-6957cc7e7e79'
                        guid='00853b73-fda2-4b12-8a89-6957cc7e7e79'>
                        <lexical-unit>
                            <form
                                lang='ldb-fonipa-x-emic'>
                                <text>asatɛn</text>
                            </form>
                        </lexical-unit>

                    </entry>
                </lift>";

            using (var oursTemp = new TempFile(ours))
            using (var theirsTemp = new TempFile(theirs))
            using (var ancestorTemp = new TempFile(ancestor))
            {
                var listener = new ListenerForUnitTests();
                var situation = new NullMergeSituation();
                var mergeOrder = new MergeOrder(oursTemp.Path, ancestorTemp.Path, theirsTemp.Path, situation) { EventListener = listener };
                XmlMergeService.Do3WayMerge(mergeOrder, new LiftEntryMergingStrategy(mergeOrder),
                    false,
                    "header",
                    "entry", "guid");
                //this doesn't seem particular relevant, but senses are, in fact, ordered, so there is some ambiguity here
                var result = File.ReadAllText(mergeOrder.pathToOurs);
                //Assert.AreEqual(typeof(AmbiguousInsertConflict), listener.Conflicts[0].GetType());
                // Check that the audio made it into the merge.
                XmlTestHelper.AssertXPathMatchesExactlyOne(result, "lift/entry/lexical-unit/form[@lang='ldb-fonipa-x-emic']");
                XmlTestHelper.AssertXPathMatchesExactlyOne(result, "lift/entry/lexical-unit/form[@lang='ldb-Zxxx-x-audio']");
            }
        }

        public void Merge_MultiTextInFormInEntry_ResultHasWarningReport()
        {
            const string ours = @"<?xml version='1.0' encoding='utf-8'?>
                <lift version='0.10' producer='WeSay 1.0.0.0'>
                    <entry
                        id='00853b73-fda2-4b12-8a89-6957cc7e7e79'
                        guid='00853b73-fda2-4b12-8a89-6957cc7e7e79'>
                        <lexical-unit>
                            <form
                                lang='en'>
                                <text>common form</text>
                                <text>our extra text</text>
                            </form>
                        </lexical-unit>
                    </entry>
                </lift>";

            const string theirs = @"<?xml version='1.0' encoding='utf-8'?>
                <lift version='0.10' producer='WeSay 1.0.0.0'>
                    <entry
                        id='00853b73-fda2-4b12-8a89-6957cc7e7e79'
                        guid='00853b73-fda2-4b12-8a89-6957cc7e7e79'>
                        <lexical-unit>
                            <form
                                lang='en'>
                                <text>common form</text>
                                <text>their extra text</text>
                            </form>
                        </lexical-unit>
                    </entry>
                </lift>";

            const string ancestor = @"<?xml version='1.0' encoding='utf-8'?>
                <lift version='0.10' producer='WeSay 1.0.0.0'>
                    <entry
                        id='00853b73-fda2-4b12-8a89-6957cc7e7e79'
                        guid='00853b73-fda2-4b12-8a89-6957cc7e7e79'>
                        <lexical-unit>
                            <form
                                lang='en'>
                                <text>common form</text>
                            </form>
                        </lexical-unit>
                    </entry>
                </lift>";

            using (var oursTemp = new TempFile(ours))
            using (var theirsTemp = new TempFile(theirs))
            using (var ancestorTemp = new TempFile(ancestor))
            {
                var listener = new ListenerForUnitTests();
                var situation = new NullMergeSituation();
                var mergeOrder = new MergeOrder(oursTemp.Path, ancestorTemp.Path, theirsTemp.Path, situation) { EventListener = listener };
                XmlMergeService.Do3WayMerge(mergeOrder, new LiftEntryMergingStrategy(mergeOrder),
                    false,
                    "header",
                    "entry", "guid");
                var result = File.ReadAllText(mergeOrder.pathToOurs);
                // Check that there is only one entry in the merged file.
                XmlTestHelper.AssertXPathMatchesExactlyOne(result, "lift/entry/lexical-unit/form/text");
                XmlTestHelper.AssertXPathIsNull(result, "lift/entry/lexical-unit/form/text[text()='extra text']");
                Assert.AreEqual(2, listener.Warnings.Count);
                Assert.AreEqual(typeof(MergeWarning), listener.Warnings[0].GetType());
                Assert.AreEqual(typeof(MergeWarning), listener.Warnings[1].GetType());
            }
        }

 public void Empty_Ancestor_Adds_Children_From_Both()
 {
     const string ours = @"<?xml version='1.0' encoding='utf-8'?>
             <lift version='0.10' producer='WeSay 1.0.0.0'>
                 <entry id='usOnly' guid='c1ed1f95-e382-11de-8a39-0800200c9a66' />
             </lift>";
     const string theirs = @"<?xml version='1.0' encoding='utf-8'?>
             <lift version='0.10' producer='WeSay 1.0.0.0'>
                 <entry id='themOnly' guid='c1ed1f96-e382-11de-8a39-0800200c9a66' />
             </lift>";
     const string ancestor = @"<lift version='0.12'></lift>";
     using (var oursTemp = new TempFile(ours))
     using (var theirsTemp = new TempFile(theirs))
     using (var ancestorTemp = new TempFile(ancestor))
     {
         var listener = new ListenerForUnitTests();
         var situation = new NullMergeSituation();
         var mergeOrder = new MergeOrder(oursTemp.Path, ancestorTemp.Path, theirsTemp.Path, situation) { EventListener = listener };
         XmlMergeService.Do3WayMerge(mergeOrder, new PoorMansMergeStrategy(),
             false,
             "header",
             "entry", "guid");
         var result = File.ReadAllText(mergeOrder.pathToOurs);
         // REVIEW JohnT(RandyR): Should new entries from 'loser' register an addition change?
         XmlTestHelper.AssertXPathMatchesExactlyOne(result, "lift[entry/@id='usOnly']");
         XmlTestHelper.AssertXPathMatchesExactlyOne(result, "lift[entry/@id='themOnly']");
         listener.AssertExpectedChangesCount(0);
         listener.AssertExpectedConflictCount(0);
     }
 }

 public void EntryRemovedByUs_Removed()
 {
     using (var oursTemp = new TempFile(_ours))
     using (var theirsTemp = new TempFile(_theirs))
     using (var ancestorTemp = new TempFile(_ancestor))
     {
         var listener = new ListenerForUnitTests();
         var situation = new NullMergeSituation();
         var mergeOrder = new MergeOrder(oursTemp.Path, ancestorTemp.Path, theirsTemp.Path, situation) { EventListener = listener };
         XmlMergeService.Do3WayMerge(mergeOrder, new PoorMansMergeStrategy(),
             false,
             "header",
             "entry", "guid");
         var result = File.ReadAllText(mergeOrder.pathToOurs);
         XmlTestHelper.AssertXPathMatchesExactlyOne(result, "lift[not(entry/@id='doomedByUs')]");
     }
 }

        public void DuplicateGuids_StillMergesWhatComesNext()
        {
            const string ours = @"<?xml version='1.0' encoding='utf-8'?>
                    <lift version='0.13' producer='WeSay 1.0.0.0'>
                        <entry id='everybody' guid='dded1f95-e382-11de-8a39-0800200c9add'/>
                        <entry id='newGuy' guid='aaed1f95-e382-11de-8a39-0800200c9a66' />
                    </lift>";
            const string theirs = @"<?xml version='1.0' encoding='utf-8'?>
                    <lift version='0.13' producer='WeSay 1.0.0.0'>
                       <entry id='everybody' guid='dded1f95-e382-11de-8a39-0800200c9add'/>
                        <entry id='duplicate' guid='c1ed1f95-e382-11de-8a39-0800200c9a66' />
                        <entry id='duplicate' guid='c1ed1f95-e382-11de-8a39-0800200c9a66' />

                        <!-- everthing above this line was being merged, but not this -->
                        <entry id='lostBoy' guid='bbed1f95-e382-11de-8a39-0800200c9a66' />
                    </lift>";
            const string ancestor = @"<?xml version='1.0' encoding='utf-8'?>
                    <lift version='0.13' producer='WeSay 1.0.0.0'>
                        <entry id='everybody' guid='dded1f95-e382-11de-8a39-0800200c9add'/>
                    </lift>";
            using (var oursTemp = new TempFile(ours))
            using (var theirsTemp = new TempFile(theirs))
            using (var ancestorTemp = new TempFile(ancestor))
            {
                var listener = new ListenerForUnitTests();
                var situation = new NullMergeSituation();
                var mergeOrder = new MergeOrder(oursTemp.Path, ancestorTemp.Path, theirsTemp.Path, situation) { EventLi