Test Coverage of the Editor (#787)

* Drop the _qDocument class variables * Split up the current doceditor test file * Add tests for editor init, load and save * Add tests for editor meta functions and actions * Add tests for editor insert functions * Add tests for editor text manipulation and block formatting * Fix code style * Add text coverage for alignment and indent
2021-07-05 16:10:52 +02:00
parent 1d16cc2a03
commit 36be7b0b33
7 changed files with 1892 additions and 657 deletions
@@ -111,9 +111,9 @@ class GuiDocEditor(QTextEdit):
        self._typPadChar = " "

        # Core Elements and Signals
-        self._qDocument = self.document()
-        self._qDocument.contentsChange.connect(self._docChange)
-        self._qDocument.documentLayout().documentSizeChanged.connect(self._docSizeChanged)
+        qDoc = self.document()
+        qDoc.contentsChange.connect(self._docChange)
+        qDoc.documentLayout().documentSizeChanged.connect(self._docSizeChanged)

        # Document Title
        self.docHeader = GuiDocEditHeader(self)
@@ -121,7 +121,7 @@ class GuiDocEditor(QTextEdit):
        self.docSearch = GuiDocEditSearch(self)

        # Syntax
-        self.hLight = GuiDocHighlighter(self._qDocument, self.theParent)
+        self.hLight = GuiDocHighlighter(qDoc, self.theParent)

        # Context Menu
        self.setContextMenuPolicy(Qt.CustomContextMenu)
@@ -221,9 +221,10 @@ class GuiDocEditor(QTextEdit):

        # Set font
        theFont = QFont()
+        qDoc = self.document()
        if self.mainConf.textFont is None:
            # If none is defined, set the default back to config
-            self.mainConf.textFont = self._qDocument.defaultFont().family()
+            self.mainConf.textFont = qDoc.defaultFont().family()

        theFont.setFamily(self.mainConf.textFont)
        theFont.setPointSize(self.mainConf.textSize)
@@ -246,7 +247,7 @@ class GuiDocEditor(QTextEdit):

        # Set default text margins
        cM = self.mainConf.getTextMargin()
-        self._qDocument.setDocumentMargin(0)
+        qDoc.setDocumentMargin(0)
        self.setViewportMargins(cM, cM, cM, cM)

        # Also set the document text options for the document text flow
@@ -259,7 +260,7 @@ class GuiDocEditor(QTextEdit):
        if self.mainConf.showLineEndings:
            theOpt.setFlags(theOpt.flags() | QTextOption.ShowLineAndParagraphSeparators)

-        self._qDocument.setDefaultTextOption(theOpt)
+        qDoc.setDefaultTextOption(theOpt)

        # Scroll bars
        if self.mainConf.hideVScroll:
@@ -275,7 +276,7 @@ class GuiDocEditor(QTextEdit):
        # Refresh the tab stops
        if self.mainConf.verQtValue >= 51000:
            self.setTabStopDistance(self.mainConf.getTabWidth())
-        else:
+        else:  # pragma: no cover
            self.setTabStopWidth(self.mainConf.getTabWidth())

        # Initialise the syntax highlighter
@@ -370,7 +371,6 @@ class GuiDocEditor(QTextEdit):
            self.setCursorLine(tLine)

        self.docFooter.updateLineCount()
-        self.lengthLast = self._qDocument.characterCount()
        self._docHeaders = self.theIndex.getHandleHeaders(self._docHandle)

        qApp.processEvents()
@@ -378,7 +378,7 @@ class GuiDocEditor(QTextEdit):
        qApp.restoreOverrideCursor()

        # This is a hack to fix invisble cursor on an empty document
-        if self._qDocument.characterCount() <= 1:
+        if self.document().characterCount() <= 1:
            self.setPlainText("\n")
            self.setPlainText("")
            self.setCursorPosition(0)
@@ -391,7 +391,7 @@ class GuiDocEditor(QTextEdit):

        return True

-    def updateTagHighLighting(self, forceBigDoc=False):
+    def updateTagHighLighting(self):
        """Rerun the syntax highlighter on all meta data lines.
        """
        self.hLight.rehighlightByType(GuiDocHighlighter.BLOCK_META)
@@ -400,7 +400,7 @@ class GuiDocEditor(QTextEdit):
    def redrawText(self):
        """Redraw the text by marking the document content as "dirty".
        """
-        self._qDocument.markContentsDirty(0, self._qDocument.characterCount())
+        self.document().markContentsDirty(0, self.document().characterCount())
        self.updateDocMargins()
        return

@@ -532,9 +532,9 @@ class GuiDocEditor(QTextEdit):

        tmpDocChanged = self._docChanged
        if self.mainConf.scrollPastEnd:
-            docFrame = self._qDocument.rootFrame().frameFormat()
+            docFrame = self.document().rootFrame().frameFormat()
            docFrame.setBottomMargin(max(0, 0.9*(wH - uM - lM - 4*tB)))
-            self._qDocument.rootFrame().setFrameFormat(docFrame)
+            self.document().rootFrame().setFrameFormat(docFrame)

        # This is needed as the setFrameFormat function itself will
        # trigger the contetsChanged signal which sets _docChanged, so we
@@ -576,7 +576,7 @@ class GuiDocEditor(QTextEdit):
    def isEmpty(self):
        """Wrapper function to check if the current document is empty.
        """
-        return self._qDocument.isEmpty()
+        return self.document().isEmpty()

    def currentDictionary(self):
        """Return the current dictionary object.
@@ -596,7 +596,7 @@ class GuiDocEditor(QTextEdit):
        See: https://doc.qt.io/qt-5/qtextdocument.html#toPlainText
        """
        if self.mainConf.verQtValue >= 50900:
-            theText = self._qDocument.toRawText()
+            theText = self.document().toRawText()
            theText = theText.replace(nwUnicode.U_LSEP, "\n")  # Line separators
            theText = theText.replace(nwUnicode.U_PSEP, "\n")  # Paragraph separators
        else:
@@ -628,7 +628,7 @@ class GuiDocEditor(QTextEdit):
        if not isinstance(thePosition, int):
            return False

-        nChars = self._qDocument.characterCount()
+        nChars = self.document().characterCount()
        if nChars > 1:
            theCursor = self.textCursor()
            theCursor.setPosition(min(max(thePosition, 0), nChars-1))
@@ -652,7 +652,7 @@ class GuiDocEditor(QTextEdit):
            return False

        if theLine >= 0:
-            theBlock = self._qDocument.findBlockByLineNumber(theLine)
+            theBlock = self.document().findBlockByLineNumber(theLine)
            if theBlock:
                self.setCursorPosition(theBlock.position())
                self.docFooter.updateLineCount()
@@ -710,7 +710,8 @@ class GuiDocEditor(QTextEdit):
    def spellCheckDocument(self):
        """Rerun the highlighter to update spell checking status of the
        currently loaded text. The fastest way to do this, at least as
-        of Qt 5.13, is to clear the text and put it back.
+        of Qt 5.13, is to clear the text and put it back. This clears
+        the undo stack, so we only do it for big documents.
        """
        logger.verbose("Running spell checker")
        if self._spellCheck:
@@ -739,11 +740,16 @@ class GuiDocEditor(QTextEdit):
        passed to it without having to consider the internal logic of
        this class when calling these actions from other classes.
        """
-        logger.verbose("Requesting action: '%s'", theAction.name)
        if self._docHandle is None:
            logger.error("No document open")
            return False

+        if not isinstance(theAction, nwDocAction):
+            logger.error("Not a document action")
+            return False
+
+        logger.verbose("Requesting action: %s" % theAction.name)
+
        self._allowAutoReplace(False)
        if theAction == nwDocAction.UNDO:
            self.undo()
@@ -1012,7 +1018,7 @@ class GuiDocEditor(QTextEdit):
        self._lastEdit = time()
        self._lastFind = None

-        if self._qDocument.characterCount() > nwConst.MAX_DOCSIZE:
+        if self.document().characterCount() > nwConst.MAX_DOCSIZE:
            self.theParent.makeAlert(self.tr(
                "The document has grown too big and you cannot add more text to it. "
                "The maximum size of a single novelWriter document is {0} MB."
@@ -1029,7 +1035,7 @@ class GuiDocEditor(QTextEdit):
            self.wcTimer.start()

        if self._doReplace and chrAdd == 1:
-            self._docAutoReplace(self._qDocument.findBlock(thePos))
+            self._docAutoReplace(self.document().findBlock(thePos))

        return

@@ -1198,7 +1204,7 @@ class GuiDocEditor(QTextEdit):
        # Must not be emitted if docHandle is None!
        self.docCountsChanged.emit(self._docHandle, cCount, wCount, pCount)

-        self._checkDocSize(self._qDocument.characterCount())
+        self._checkDocSize(self.document().characterCount())
        self.docFooter.updateCounts()

        return
@@ -1211,7 +1217,7 @@ class GuiDocEditor(QTextEdit):
        moved to has been drawn before the move is made.
        """
        if self._queuePos is not None:
-            thePos = self._qDocument.documentLayout().hitTest(
+            thePos = self.document().documentLayout().hitTest(
                QPointF(theSize.width(), theSize.height()), Qt.FuzzyHit
            )
            if self._queuePos <= thePos:
@@ -1362,226 +1368,74 @@ class GuiDocEditor(QTextEdit):
        return

    ##
-    #  Internal Functions
+    #  Internal Functions : Text Manipulation
    ##

-    def _followTag(self, theCursor=None, loadTag=True):
-        """Activated by Ctrl+Enter. Checks that we're in a block
-        starting with '@'. We then find the word under the cursor and
-        check that it is after the ':'. If all this is fine, we have a
-        tag and can tell the document viewer to try and find and load
-        the file where the tag is defined.
+    def _toggleFormat(self, fLen, fChar):
+        """Toggle the formatting of a specific type for a piece of text.
+        If more than one block is selected, the formatting is applied to
+        the first block.
        """
-        if theCursor is None:
-            theCursor = self.textCursor()
-
-        theBlock = theCursor.block()
-        theText = theBlock.text()
-
-        if len(theText) == 0:
+        theCursor = self._autoSelect()
+        if not theCursor.hasSelection():
+            logger.warning("No selection made, nothing to do")
            return False

-        if theText.startswith("@"):
+        posS = theCursor.selectionStart()
+        posE = theCursor.selectionEnd()

-            theCursor.select(QTextCursor.WordUnderCursor)
-            theWord = theCursor.selectedText()
-            cPos = theText.find(":")
-            wPos = theCursor.selectionStart() - theBlock.position()
-            if wPos <= cPos:
-                return False
+        blockS = self.document().findBlock(posS)
+        blockE = self.document().findBlock(posE)

-            if loadTag:
-                logger.verbose("Attempting to follow tag '%s'", theWord)
-                self.theParent.docViewer.loadFromTag(theWord)
+        if blockS != blockE:
+            posE = blockS.position() + blockS.length() - 1
+            theCursor.clearSelection()
+            theCursor.setPosition(posS, QTextCursor.MoveAnchor)
+            theCursor.setPosition(posE, QTextCursor.KeepAnchor)
+            self.setTextCursor(theCursor)
+
+        numB = 0
+        for n in range(fLen):
+            if self.document().characterAt(posS-n-1) == fChar:
+                numB += 1
            else:
-                logger.verbose("Potential tag '%s'", theWord)
+                break

-            return True
-
-        return False
-
-    def _openSpellContext(self):
-        """Opens the spell check context menu at the current point of
-        the cursor.
-        """
-        self._openContextMenu(self.cursorRect().center())
-        return
-
-    def _docAutoReplace(self, theBlock):
-        """Auto-replace text elements based on main configuration.
-        """
-        if not theBlock.isValid():
-            return
-
-        theText = theBlock.text()
-        theCursor = self.textCursor()
-        thePos = theCursor.positionInBlock()
-        theLen = len(theText)
-
-        if theLen < 1 or thePos-1 > theLen:
-            return
-
-        theOne = theText[thePos-1:thePos]
-        theTwo = theText[thePos-2:thePos]
-        theThree = theText[thePos-3:thePos]
-
-        if not theOne:  # Makes Neo sad
-            return
-
-        nDelete = 0
-        tInsert = theOne
-
-        if self.mainConf.doReplaceDQuote and theTwo == ' "':
-            nDelete = 1
-            tInsert = self._typDQOpen
-
-        elif self.mainConf.doReplaceDQuote and theOne == '"':
-            nDelete = 1
-            if thePos == 1:
-                tInsert = self._typDQOpen
+        numA = 0
+        for n in range(fLen):
+            if self.document().characterAt(posE+n) == fChar:
+                numA += 1
            else:
-                tInsert = self._typDQClose
-
-        elif self.mainConf.doReplaceSQuote and theTwo == " '":
-            nDelete = 1
-            tInsert = self._typSQOpen
-
-        elif self.mainConf.doReplaceSQuote and theOne == "'":
-            nDelete = 1
-            if thePos == 1:
-                tInsert = self._typSQOpen
-            else:
-                tInsert = self._typSQClose
-
-        elif self.mainConf.doReplaceDash and theThree == "---":
-            nDelete = 3
-            tInsert = nwUnicode.U_EMDASH
-
-        elif self.mainConf.doReplaceDash and theTwo == "--":
-            nDelete = 2
-            tInsert = nwUnicode.U_ENDASH
-
-        elif self.mainConf.doReplaceDash and theTwo == nwUnicode.U_ENDASH + "-":
-            nDelete = 2
-            tInsert = nwUnicode.U_EMDASH
-
-        elif self.mainConf.doReplaceDots and theThree == "...":
-            nDelete = 3
-            tInsert = nwUnicode.U_HELLIP
-
-        tCheck = tInsert
-        if tCheck in self.mainConf.fmtPadBefore:
-            nDelete = max(nDelete, 1)
-            tInsert = self._typPadChar + tInsert
-
-        if tCheck in self.mainConf.fmtPadAfter:
-            nDelete = max(nDelete, 1)
-            tInsert = tInsert + self._typPadChar
-
-        if nDelete > 0:
-            theCursor.movePosition(QTextCursor.Left, QTextCursor.KeepAnchor, nDelete)
-            theCursor.insertText(tInsert)
-
-        return
-
-    def _updateHeaders(self, checkPos=False, checkLevel=False):
-        """Update the headers record and return True if anything
-        changed, if a check flag was provided.
-        """
-        if self._docHandle is None:
-            return False
-
-        newHeaders = self.theIndex.getHandleHeaders(self._docHandle)
-        if checkPos:
-            newPos = [x[0] for x in newHeaders]
-            oldPos = [x[0] for x in self._docHeaders]
-        if checkLevel:
-            newLev = [x[1] for x in newHeaders]
-            oldLev = [x[1] for x in self._docHeaders]
-
-        self._docHeaders = newHeaders
-
-        if checkPos:
-            return newPos != oldPos
-        if checkLevel:
-            return newLev != oldLev
-
-        return False
-
-    def _replaceQuotes(self, sQuote, oQuote, cQuote):
-        """Replace all straight quotes in the selected text.
-        """
-        theCursor = self.textCursor()
-        if theCursor.hasSelection():
-            posS = theCursor.selectionStart()
-            posE = theCursor.selectionEnd()
-            closeCheck = (
-                " ", "\n", nwUnicode.U_LSEP, nwUnicode.U_PSEP
-            )
-
-            self._allowAutoReplace(False)
-            for posC in range(posS, posE+1):
-                theCursor.setPosition(posC)
-                theCursor.movePosition(QTextCursor.Left, QTextCursor.KeepAnchor, 2)
-                selText = theCursor.selectedText()
-
-                nS = len(selText)
-                if nS == 2:
-                    pC = selText[0]
-                    cC = selText[1]
-                elif nS == 1:
-                    pC = " "
-                    cC = selText[0]
-                else:
-                    continue
-
-                if cC != sQuote:
-                    continue
-
-                theCursor.clearSelection()
-                theCursor.setPosition(posC)
-                if pC in closeCheck:
-                    theCursor.beginEditBlock()
-                    theCursor.movePosition(QTextCursor.Left, QTextCursor.KeepAnchor, 1)
-                    theCursor.insertText(oQuote)
-                    theCursor.endEditBlock()
-                else:
-                    theCursor.beginEditBlock()
-                    theCursor.movePosition(QTextCursor.Left, QTextCursor.KeepAnchor, 1)
-                    theCursor.insertText(cQuote)
-                    theCursor.endEditBlock()
-
-            self._allowAutoReplace(True)
+                break

+        if fLen == min(numA, numB):
+            self._clearSurrounding(theCursor, fLen)
        else:
-            self.theParent.makeAlert(self.tr(
-                "Please select some text before calling replace quotes."
-            ), nwAlert.ERROR)
+            self._wrapSelection(fChar*fLen)

-        return
+        return True

-    def _checkDocSize(self, theSize):
-        """Check if document size crosses the big document limit set in
-        config. If so, we will set the big document flag to True.
+    def _clearSurrounding(self, theCursor, nChars):
+        """Clears n characters before and after the cursor.
        """
-        bigLim = self.mainConf.bigDocLimit*1000
-        newState = theSize > bigLim
+        if not theCursor.hasSelection():
+            logger.warning("No selection made, nothing to do")
+            return False

-        if newState != self._bigDoc:
-            if newState:
-                logger.info(
-                    f"The document size is {theSize:n} > {bigLim:n}, "
-                    f"big doc mode has been enabled"
-                )
-            else:
-                logger.info(
-                    f"The document size is {theSize:n} <= {bigLim:n}, "
-                    f"big doc mode has been disabled"
-                )
+        posS = theCursor.selectionStart()
+        posE = theCursor.selectionEnd()
+        theCursor.clearSelection()
+        theCursor.beginEditBlock()
+        theCursor.setPosition(posS)
+        for i in range(nChars):
+            theCursor.deletePreviousChar()
+        theCursor.setPosition(posE)
+        for i in range(nChars):
+            theCursor.deletePreviousChar()
+        theCursor.endEditBlock()
+        theCursor.clearSelection()

-        self._bigDoc = newState
-
-        return
+        return True

    def _wrapSelection(self, tBefore, tAfter=None):
        """Wraps the selected text in whatever is in tBefore and tAfter.
@@ -1593,120 +1447,84 @@ class GuiDocEditor(QTextEdit):
            tAfter = tBefore

        theCursor = self._autoSelect()
-        if theCursor.hasSelection():
-            posS = theCursor.selectionStart()
-            posE = theCursor.selectionEnd()
-
-            blockS = self._qDocument.findBlock(posS)
-            blockE = self._qDocument.findBlock(posE)
-            if blockS != blockE:
-                posE = blockS.position() + blockS.length() - 1
-
-            theCursor.clearSelection()
-            theCursor.beginEditBlock()
-            theCursor.setPosition(posE)
-            theCursor.insertText(tAfter)
-            theCursor.setPosition(posS)
-            theCursor.insertText(tBefore)
-            theCursor.endEditBlock()
-
-            theCursor.setPosition(posE + len(tBefore), QTextCursor.MoveAnchor)
-            theCursor.setPosition(posS + len(tBefore), QTextCursor.KeepAnchor)
-            self.setTextCursor(theCursor)
-
-        else:
+        if not theCursor.hasSelection():
            logger.warning("No selection made, nothing to do")
-        return
+            return False

-    def _clearSurrounding(self, theCursor, nChars):
-        """Clears n characters before and after the cursor.
-        """
-        if theCursor.hasSelection():
-            posS = theCursor.selectionStart()
-            posE = theCursor.selectionEnd()
-            theCursor.clearSelection()
-            theCursor.beginEditBlock()
-            theCursor.setPosition(posS)
-            for i in range(nChars):
-                theCursor.deletePreviousChar()
-            theCursor.setPosition(posE)
-            for i in range(nChars):
-                theCursor.deletePreviousChar()
-            theCursor.endEditBlock()
-            theCursor.clearSelection()
-        else:
-            logger.warning("No selection made, nothing to do")
-        return
+        posS = theCursor.selectionStart()
+        posE = theCursor.selectionEnd()

-    def _autoSelect(self):
-        """Returns a cursor which may or may not have a selection based
-        on user settings and document action.
+        qDoc = self.document()
+        blockS = qDoc.findBlock(posS)
+        blockE = qDoc.findBlock(posE)
+        if blockS != blockE:
+            posE = blockS.position() + blockS.length() - 1
+
+        theCursor.clearSelection()
+        theCursor.beginEditBlock()
+        theCursor.setPosition(posE)
+        theCursor.insertText(tAfter)
+        theCursor.setPosition(posS)
+        theCursor.insertText(tBefore)
+        theCursor.endEditBlock()
+
+        theCursor.setPosition(posE + len(tBefore), QTextCursor.MoveAnchor)
+        theCursor.setPosition(posS + len(tBefore), QTextCursor.KeepAnchor)
+        self.setTextCursor(theCursor)
+
+        return True
+
+    def _replaceQuotes(self, sQuote, oQuote, cQuote):
+        """Replace all straight quotes in the selected text.
        """
        theCursor = self.textCursor()
-        if self.mainConf.autoSelect and not theCursor.hasSelection():
-            theCursor.select(QTextCursor.WordUnderCursor)
-            posS = theCursor.selectionStart()
-            posE = theCursor.selectionEnd()
+        if not theCursor.hasSelection():
+            self.theParent.makeAlert(self.tr(
+                "Please select some text before calling replace quotes."
+            ), nwAlert.ERROR)
+            return False

-            # Underscore counts as a part of the word, so check that the
-            # selection isn't wrapped in italics markers.
-            reSelect = False
-            if self._qDocument.characterAt(posS) == "_":
-                posS += 1
-                reSelect = True
-            if self._qDocument.characterAt(posE) == "_":
-                posE -= 1
-                reSelect = True
-            if reSelect:
-                theCursor.clearSelection()
-                theCursor.setPosition(posS, QTextCursor.MoveAnchor)
-                theCursor.setPosition(posE-1, QTextCursor.KeepAnchor)
+        posS = theCursor.selectionStart()
+        posE = theCursor.selectionEnd()
+        closeCheck = (
+            " ", "\n", nwUnicode.U_LSEP, nwUnicode.U_PSEP
+        )

-            self.setTextCursor(theCursor)
+        self._allowAutoReplace(False)
+        for posC in range(posS, posE+1):
+            theCursor.setPosition(posC)
+            theCursor.movePosition(QTextCursor.Left, QTextCursor.KeepAnchor, 2)
+            selText = theCursor.selectedText()

-        return theCursor
+            nS = len(selText)
+            if nS == 2:
+                pC = selText[0]
+                cC = selText[1]
+            elif nS == 1:
+                pC = " "
+                cC = selText[0]
+            else:  # pragma: no cover
+                continue

-    def _toggleFormat(self, fLen, fChar):
-        """Toggle the formatting of a specific type for a piece of text.
-        If more than one block is selected, the formatting is applied to
-        the first block.
-        """
-        theCursor = self._autoSelect()
-        if theCursor.hasSelection():
-            posS = theCursor.selectionStart()
-            posE = theCursor.selectionEnd()
+            if cC != sQuote:
+                continue

-            blockS = self._qDocument.findBlock(posS)
-            blockE = self._qDocument.findBlock(posE)
-
-            if blockS != blockE:
-                posE = blockS.position() + blockS.length() - 1
-                theCursor.clearSelection()
-                theCursor.setPosition(posS, QTextCursor.MoveAnchor)
-                theCursor.setPosition(posE, QTextCursor.KeepAnchor)
-                self.setTextCursor(theCursor)
-
-            numB = 0
-            for n in range(fLen):
-                if self._qDocument.characterAt(posS-n-1) == fChar:
-                    numB += 1
-                else:
-                    break
-
-            numA = 0
-            for n in range(fLen):
-                if self._qDocument.characterAt(posE+n) == fChar:
-                    numA += 1
-                else:
-                    break
-
-            cLevel = min(numB, numA)
-            if cLevel == fLen:
-                self._clearSurrounding(theCursor, fLen)
+            theCursor.clearSelection()
+            theCursor.setPosition(posC)
+            if pC in closeCheck:
+                theCursor.beginEditBlock()
+                theCursor.movePosition(QTextCursor.Left, QTextCursor.KeepAnchor, 1)
+                theCursor.insertText(oQuote)
+                theCursor.endEditBlock()
            else:
-                self._wrapSelection(fChar*fLen)
+                theCursor.beginEditBlock()
+                theCursor.movePosition(QTextCursor.Left, QTextCursor.KeepAnchor, 1)
+                theCursor.insertText(cQuote)
+                theCursor.endEditBlock()

-        return
+        self._allowAutoReplace(True)
+
+        return True

    def _formatBlock(self, docAction):
        """Changes the block format of the block under the cursor.
@@ -1874,6 +1692,206 @@ class GuiDocEditor(QTextEdit):

        return True

+    ##
+    #  Internal Functions
+    ##
+
+    def _followTag(self, theCursor=None, loadTag=True):
+        """Activated by Ctrl+Enter. Checks that we're in a block
+        starting with '@'. We then find the word under the cursor and
+        check that it is after the ':'. If all this is fine, we have a
+        tag and can tell the document viewer to try and find and load
+        the file where the tag is defined.
+        """
+        if theCursor is None:
+            theCursor = self.textCursor()
+
+        theBlock = theCursor.block()
+        theText = theBlock.text()
+
+        if len(theText) == 0:
+            return False
+
+        if theText.startswith("@"):
+
+            theCursor.select(QTextCursor.WordUnderCursor)
+            theWord = theCursor.selectedText()
+            cPos = theText.find(":")
+            wPos = theCursor.selectionStart() - theBlock.position()
+            if wPos <= cPos:
+                return False
+
+            if loadTag:
+                logger.verbose("Attempting to follow tag '%s'" % theWord)
+                self.theParent.docViewer.loadFromTag(theWord)
+            else:
+                logger.verbose("Potential tag '%s'" % theWord)
+
+            return True
+
+        return False
+
+    def _openSpellContext(self):
+        """Opens the spell check context menu at the current point of
+        the cursor.
+        """
+        self._openContextMenu(self.cursorRect().center())
+        return
+
+    def _docAutoReplace(self, theBlock):
+        """Auto-replace text elements based on main configuration.
+        """
+        if not theBlock.isValid():
+            return
+
+        theText = theBlock.text()
+        theCursor = self.textCursor()
+        thePos = theCursor.positionInBlock()
+        theLen = len(theText)
+
+        if theLen < 1 or thePos-1 > theLen:
+            return
+
+        theOne = theText[thePos-1:thePos]
+        theTwo = theText[thePos-2:thePos]
+        theThree = theText[thePos-3:thePos]
+
+        if not theOne:
+            # Sorry, Neo and Zathras
+            return
+
+        nDelete = 0
+        tInsert = theOne
+
+        if self.mainConf.doReplaceDQuote and theTwo == ' "':
+            nDelete = 1
+            tInsert = self._typDQOpen
+
+        elif self.mainConf.doReplaceDQuote and theOne == '"':
+            nDelete = 1
+            if thePos == 1:
+                tInsert = self._typDQOpen
+            else:
+                tInsert = self._typDQClose
+
+        elif self.mainConf.doReplaceSQuote and theTwo == " '":
+            nDelete = 1
+            tInsert = self._typSQOpen
+
+        elif self.mainConf.doReplaceSQuote and theOne == "'":
+            nDelete = 1
+            if thePos == 1:
+                tInsert = self._typSQOpen
+            else:
+                tInsert = self._typSQClose
+
+        elif self.mainConf.doReplaceDash and theThree == "---":
+            nDelete = 3
+            tInsert = nwUnicode.U_EMDASH
+
+        elif self.mainConf.doReplaceDash and theTwo == "--":
+            nDelete = 2
+            tInsert = nwUnicode.U_ENDASH
+
+        elif self.mainConf.doReplaceDash and theTwo == nwUnicode.U_ENDASH + "-":
+            nDelete = 2
+            tInsert = nwUnicode.U_EMDASH
+
+        elif self.mainConf.doReplaceDots and theThree == "...":
+            nDelete = 3
+            tInsert = nwUnicode.U_HELLIP
+
+        tCheck = tInsert
+        if tCheck in self.mainConf.fmtPadBefore:
+            nDelete = max(nDelete, 1)
+            tInsert = self._typPadChar + tInsert
+
+        if tCheck in self.mainConf.fmtPadAfter:
+            nDelete = max(nDelete, 1)
+            tInsert = tInsert + self._typPadChar
+
+        if nDelete > 0:
+            theCursor.movePosition(QTextCursor.Left, QTextCursor.KeepAnchor, nDelete)
+            theCursor.insertText(tInsert)
+
+        return
+
+    def _updateHeaders(self, checkPos=False, checkLevel=False):
+        """Update the headers record and return True if anything
+        changed, if a check flag was provided.
+        """
+        if self._docHandle is None:
+            return False
+
+        newHeaders = self.theIndex.getHandleHeaders(self._docHandle)
+        if checkPos:
+            newPos = [x[0] for x in newHeaders]
+            oldPos = [x[0] for x in self._docHeaders]
+        if checkLevel:
+            newLev = [x[1] for x in newHeaders]
+            oldLev = [x[1] for x in self._docHeaders]
+
+        self._docHeaders = newHeaders
+
+        if checkPos:
+            return newPos != oldPos
+        if checkLevel:
+            return newLev != oldLev
+
+        return False
+
+    def _checkDocSize(self, theSize):
+        """Check if document size crosses the big document limit set in
+        config. If so, we will set the big document flag to True.
+        """
+        bigLim = round(self.mainConf.bigDocLimit*1000)
+        newState = theSize > bigLim
+
+        if newState != self._bigDoc:
+            if newState:
+                logger.info(
+                    f"The document size is {theSize:n} > {bigLim:n}, "
+                    f"big doc mode has been enabled"
+                )
+            else:
+                logger.info(
+                    f"The document size is {theSize:n} <= {bigLim:n}, "
+                    f"big doc mode has been disabled"
+                )
+
+        self._bigDoc = newState
+
+        return
+
+    def _autoSelect(self):
+        """Returns a cursor which may or may not have a selection based
+        on user settings and document action.
+        """
+        theCursor = self.textCursor()
+        if self.mainConf.autoSelect and not theCursor.hasSelection():
+            theCursor.select(QTextCursor.WordUnderCursor)
+            posS = theCursor.selectionStart()
+            posE = theCursor.selectionEnd()
+
+            # Underscore counts as a part of the word, so check that the
+            # selection isn't wrapped in italics markers.
+            reSelect = False
+            qDoc = self.document()
+            if qDoc.characterAt(posS) == "_":
+                posS += 1
+                reSelect = True
+            if qDoc.characterAt(posE) == "_":
+                posE -= 1
+                reSelect = True
+            if reSelect:
+                theCursor.clearSelection()
+                theCursor.setPosition(posS, QTextCursor.MoveAnchor)
+                theCursor.setPosition(posE-1, QTextCursor.KeepAnchor)
+
+            self.setTextCursor(theCursor)
+
+        return theCursor
+
    def _makeSelection(self, selMode):
        """Wrapper function to select text based on a selection mode.
        """
@@ -2753,7 +2771,7 @@ class GuiDocEditFooter(QWidget):
        else:
            theCursor = self.docEditor.textCursor()
            iLine = theCursor.blockNumber() + 1
-            iDist = 100*iLine/self.docEditor._qDocument.blockCount()
+            iDist = 100*iLine/self.docEditor.document().blockCount()

        self.linesText.setText(
            self.tr("Line: {0} ({1})").format(f"{iLine:n}", f"{iDist:.0f} %")
@@ -2775,7 +2793,7 @@ class GuiDocEditFooter(QWidget):
            self.tr("Words: {0} ({1})").format(f"{wCount:n}", f"{wDiff:+n}")
        )

-        byteSize = self.docEditor._qDocument.characterCount()
+        byteSize = self.docEditor.document().characterCount()
        self.wordsText.setToolTip(
            self.tr("Document size is {0} bytes").format(f"{byteSize:n}")
        )
@@ -261,11 +261,11 @@ class GuiDocHighlighter(QSyntaxHighlighter):
        """Loop through all blocks and rehighlight those of a given
        content type.
        """
-        qDocument = self.document()
-        nBlocks = qDocument.blockCount()
+        qDoc = self.document()
+        nBlocks = qDoc.blockCount()
        bfTime = time()
        for i in range(nBlocks):
-            theBlock = qDocument.findBlockByNumber(i)
+            theBlock = qDoc.findBlockByNumber(i)
            if theBlock.userState() & theType > 0:
                self.rehighlightBlock(theBlock)
        afTime = time()
@@ -61,7 +61,6 @@ class GuiDocViewer(QTextBrowser):

        # Internal Variables
        self._docHandle = None
-        self._qDocument = self.document()

        # Settings
        self.setMinimumWidth(self.mainConf.pxInt(300))
@@ -106,7 +105,7 @@ class GuiDocViewer(QTextBrowser):
        theFont = QFont()
        if self.mainConf.textFont is None:
            # If none is defined, set the default back to config
-            self.mainConf.textFont = self._qDocument.defaultFont().family()
+            self.mainConf.textFont = self.document().defaultFont().family()
        theFont.setFamily(self.mainConf.textFont)
        theFont.setPointSize(self.mainConf.textSize)
        self.setFont(theFont)
@@ -127,11 +126,11 @@ class GuiDocViewer(QTextBrowser):
        self.docFooter.matchColours()

        # Set default text margins
-        self._qDocument.setDocumentMargin(0)
+        self.document().setDocumentMargin(0)
        theOpt = QTextOption()
        if self.mainConf.doJustify:
            theOpt.setAlignment(Qt.AlignJustify)
-        self._qDocument.setDefaultTextOption(theOpt)
+        self.document().setDefaultTextOption(theOpt)

        # Scroll bars
        if self.mainConf.hideVScroll:
@@ -234,7 +233,7 @@ class GuiDocViewer(QTextBrowser):
    def redrawText(self):
        """Redraw the text by marking the document content as "dirty".
        """
-        self._qDocument.markContentsDirty(0, self._qDocument.characterCount())
+        self.document().markContentsDirty(0, self.document().characterCount())
        self.updateDocMargins()
        return

@@ -373,7 +372,7 @@ class GuiDocViewer(QTextBrowser):
        if not isinstance(theLine, int):
            return False
        if theLine >= 0:
-            theBlock = self._qDocument.findBlockByLineNumber(theLine)
+            theBlock = self.document().findBlockByLineNumber(theLine)
            if theBlock:
                self.setCursorPosition(theBlock.position())
                logger.verbose("Cursor moved to line %d", theLine)
@@ -563,7 +562,7 @@ class GuiDocViewer(QTextBrowser):
            mColG=self.theTheme.colMod[1],
            mColB=self.theTheme.colMod[2],
        )
-        self._qDocument.setDefaultStyleSheet(styleSheet)
+        self.document().setDefaultStyleSheet(styleSheet)

        return True

@@ -980,7 +980,7 @@ class GuiBuildNovel(QDialog):
                thePrinter.setFontEmbeddingEnabled(True)
                thePrinter.setColorMode(QPrinter.Color)
                thePrinter.setOutputFileName(savePath)
-                self.docView.qDocument.print(thePrinter)
+                self.docView.document().print(thePrinter)
                wSuccess = True

            except Exception as e:
@@ -1018,7 +1018,7 @@ class GuiBuildNovel(QDialog):
        """
        qApp.setOverrideCursor(QCursor(Qt.WaitCursor))
        thePrinter.setOrientation(QPrinter.Portrait)
-        self.docView.qDocument.print(thePrinter)
+        self.docView.document().print(thePrinter)
        qApp.restoreOverrideCursor()
        return

@@ -1195,8 +1195,7 @@ class GuiBuildNovelDocView(QTextBrowser):
        self.setMinimumWidth(40*self.theParent.theTheme.textNWidth)
        self.setOpenExternalLinks(False)

-        self.qDocument = self.document()
-        self.qDocument.setDocumentMargin(self.mainConf.getTextMargin())
+        self.document().setDocumentMargin(self.mainConf.getTextMargin())
        self.setPlaceholderText(self.tr(
            "This area will show the content of the document to be "
            "exported or printed. Press the \"Build Preview\" button "
@@ -1206,7 +1205,7 @@ class GuiBuildNovelDocView(QTextBrowser):
        theFont = QFont()
        if self.mainConf.textFont is None:
            # If none is defined, set the default back to config
-            self.mainConf.textFont = self.qDocument.defaultFont().family()
+            self.mainConf.textFont = self.document().defaultFont().family()
        theFont.setFamily(self.mainConf.textFont)
        theFont.setPointSize(self.mainConf.textSize)
        self.setFont(theFont)
@@ -1256,12 +1255,12 @@ class GuiBuildNovelDocView(QTextBrowser):
    def setJustify(self, doJustify):
        """Set the justify text option.
        """
-        theOpt = self.qDocument.defaultTextOption()
+        theOpt = self.document().defaultTextOption()
        if doJustify:
            theOpt.setAlignment(Qt.AlignJustify)
        else:
            theOpt.setAlignment(Qt.AlignAbsolute)
-        self.qDocument.setDefaultTextOption(theOpt)
+        self.document().setDefaultTextOption(theOpt)
        return

    def setTextFont(self, textFont, textSize):
@@ -1298,7 +1297,7 @@ class GuiBuildNovelDocView(QTextBrowser):

        # Since we change the content while it may still be rendering, we mark
        # the document dirty again to make sure it's re-rendered properly.
-        self.qDocument.markContentsDirty(0, self.qDocument.characterCount())
+        self.document().markContentsDirty(0, self.document().characterCount())
        qApp.restoreOverrideCursor()

        return
@@ -1312,14 +1311,14 @@ class GuiBuildNovelDocView(QTextBrowser):
            theStyles.append("a {color: rgb(66, 113, 174);}")
            theStyles.append(".tags {color: rgb(245, 135, 31); font-weight: bold;}")

-        self.qDocument.setDefaultStyleSheet("\n".join(theStyles))
+        self.document().setDefaultStyleSheet("\n".join(theStyles))

        return

    def clearStyleSheet(self):
        """Clears the document stylesheet.
        """
-        self.qDocument.setDefaultStyleSheet("")
+        self.document().setDefaultStyleSheet("")
        return

    ##
@@ -240,3 +240,62 @@ def nwOldProj(tmpDir):
        shutil.rmtree(dstDir)

    return
+
+
+##
+#  Useful Fixtures
+##
+
+@pytest.fixture(scope="session")
+def ipsumText():
+    """Return five paragraphs of Lorem Ipsum text.
+    """
+    thatIpsum = [(
+        "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nunc maximus justo non dictum co"
+        "mmodo. Curabitur lacinia tempor orci vel luctus. Phasellus porta metus eu massa luctus, e"
+        "get euismod risus rhoncus. Vestibulum sed arcu nisi. Maecenas pretium facilisis velit, ve"
+        "l semper lacus aliquam sit amet. Vestibulum vulputate neque ligula, rhoncus blandit turpi"
+        "s consequat id. Mauris sagittis vehicula imperdiet. Duis sed nunc pretium, ornare purus v"
+        "el, sodales augue. Maecenas a suscipit risus. Quisque volutpat justo eleifend est ullamco"
+        "rper fermentum. Donec ullamcorper et tortor a laoreet. Nam id risus nisi. Vivamus non imp"
+        "erdiet erat, sit amet imperdiet felis. Mauris vitae neque et est aliquam scelerisque non "
+        "non ipsum."
+    ), (
+        "Nullam laoreet lorem nec malesuada vehicula. Vivamus tempus sodales lectus sed viverra. A"
+        "enean lacinia sollicitudin quam, quis tempus eros suscipit id. Duis sed rutrum nisi, ut p"
+        "ulvinar magna. Nam et cursus tortor. Phasellus ac odio tellus. Nullam in iaculis ipsum. V"
+        "ivamus ante sem, ultricies sed varius quis, tristique nec tellus. Nullam eu urna vitae la"
+        "cus hendrerit gravida. Quisque pulvinar erat ex, id efficitur velit sodales vitae. Proin "
+        "vestibulum, sapien eget mattis euismod, tortor quam viverra risus, at congue mauris torto"
+        "r eu nunc. Mauris pellentesque elit leo, quis eleifend sem placerat a. Vivamus iaculis du"
+        "i eget tellus volutpat, ac varius nisi facilisis."
+    ), (
+        "Nullam a nisl magna. Praesent commodo nec diam aliquet vestibulum. In sapien velit, sodal"
+        "es feugiat porta ut, rhoncus a elit. Quisque egestas nisi eu eros laoreet, quis facilisis"
+        " est pretium. Nullam bibendum sed tellus nec lobortis. Duis elit massa, volutpat a lacini"
+        "a a, ullamcorper in dui. Suspendisse ac laoreet dui. Curabitur elementum, tortor elementu"
+        "m ultricies laoreet, nunc massa vulputate augue, vitae tincidunt nunc enim eget nisl."
+    ), (
+        "Pellentesque nibh urna, volutpat et feugiat porta, rutrum sed lectus. Aliquam eget risus "
+        "id orci tincidunt condimentum et sit amet purus. Curabitur tincidunt odio vel ante feugia"
+        "t feugiat. Proin nunc lorem, molestie a sapien et, varius elementum nunc. Donec non ferme"
+        "ntum nisl. In et massa placerat, faucibus felis eu, congue nisi. Proin sed tortor non lor"
+        "em mattis cursus. Vestibulum magna neque, bibendum vel nibh et, tincidunt rhoncus nisi. D"
+        "uis pulvinar mi a quam rutrum maximus. Nunc sollicitudin, urna in cursus facilisis, augue"
+        " neque imperdiet metus, ac finibus lorem ante id nulla. Sed maximus eleifend justo id feu"
+        "giat. Cras eget diam vel est blandit tempor nec a leo. Mauris risus est, fringilla in ali"
+        "quam a, sagittis vel enim. Nullam sodales id erat placerat lobortis."
+    ), (
+        "Integer ac gravida quam. Quisque eleifend nisl nec pretium tincidunt. Quisque sollicitudi"
+        "n nisi in hendrerit scelerisque. Sed ornare nisl lacus, sit amet consectetur lectus egest"
+        "as et. Vivamus nec arcu lorem. Donec rhoncus, purus a porta accumsan, nunc lectus iaculis"
+        " libero, et fringilla tellus augue et velit. Integer varius felis scelerisque, vulputate "
+        "tellus eu, laoreet justo. Suspendisse sit amet sem vehicula, auctor odio sed, aliquet eni"
+        "m. In ac tortor sed tortor fringilla elementum. Nulla non odio at magna vulputate sceleri"
+        "sque. Nam elementum diam eu rutrum scelerisque. Sed fermentum, felis quis vulputate ferme"
+        "ntum, libero metus sollicitudin est, in faucibus purus nulla non dolor. Ut vitae felis po"
+        "rta, feugiat nunc et, bibendum neque. Nullam nec lorem nec metus ullamcorper malesuada ut"
+        " a nisl. Etiam eget tristique dui. Nulla sed mi finibus, venenatis tellus non, maximus en"
+        "im."
+    )]
+    return thatIpsum
@@ -0,0 +1,354 @@
+# -*- coding: utf-8 -*-
+"""
+novelWriter – Main GUI Editor Class Tester
+==========================================
+
+This file is a part of novelWriter
+Copyright 2018–2021, Veronica Berglyd Olsen
+
+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, either version 3 of the License, or
+(at your option) any later version.
+
+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. If not, see <https://www.gnu.org/licenses/>.
+"""
+
+import pytest
+import os
+
+from shutil import copyfile
+from tools import cmpFiles
+
+from PyQt5.QtCore import Qt
+from PyQt5.QtWidgets import QMessageBox, QDialog
+
+from nw.dialogs.itemeditor import GuiItemEditor
+from nw.gui.doceditor import GuiDocEditor
+from nw.gui.projtree import GuiProjectTree
+from nw.enum import nwItemType, nwWidget
+
+keyDelay = 2
+typeDelay = 1
+stepDelay = 20
+
+
+@pytest.mark.gui
+def testGuiMain_Editing(qtbot, monkeypatch, nwGUI, fncProj, refDir, outDir):
+    """Test the document editor.
+    """
+    # Block message box
+    monkeypatch.setattr(QMessageBox, "question", lambda *args: QMessageBox.Yes)
+    monkeypatch.setattr(QMessageBox, "information", lambda *args: QMessageBox.Yes)
+    monkeypatch.setattr(GuiItemEditor, "exec_", lambda *args: None)
+    monkeypatch.setattr(GuiItemEditor, "result", lambda *args: QDialog.Accepted)
+    monkeypatch.setattr(GuiProjectTree, "hasFocus", lambda *args: True)
+    monkeypatch.setattr(GuiDocEditor, "hasFocus", lambda *args: True)
+
+    # Create new, save, close project
+    nwGUI.theProject.projTree.setSeed(42)
+    assert nwGUI.newProject({"projPath": fncProj})
+    assert nwGUI.saveProject()
+    assert nwGUI.closeProject()
+
+    assert len(nwGUI.theProject.projTree) == 0
+    assert len(nwGUI.theProject.projTree._treeOrder) == 0
+    assert len(nwGUI.theProject.projTree._treeRoots) == 0
+    assert nwGUI.theProject.projTree.trashRoot() is None
+    assert nwGUI.theProject.projPath is None
+    assert nwGUI.theProject.projMeta is None
+    assert nwGUI.theProject.projFile == "nwProject.nwx"
+    assert nwGUI.theProject.projName == ""
+    assert nwGUI.theProject.bookTitle == ""
+    assert len(nwGUI.theProject.bookAuthors) == 0
+    assert not nwGUI.theProject.spellCheck
+
+    # Check the files
+    projFile = os.path.join(fncProj, "nwProject.nwx")
+    testFile = os.path.join(outDir, "guiEditor_Main_Initial_nwProject.nwx")
+    compFile = os.path.join(refDir, "guiEditor_Main_Initial_nwProject.nwx")
+    copyfile(projFile, testFile)
+    assert cmpFiles(testFile, compFile, [2, 6, 7, 8])
+    qtbot.wait(stepDelay)
+
+    # qtbot.stopForInteraction()
+
+    # Re-open project
+    assert nwGUI.openProject(fncProj)
+    qtbot.wait(stepDelay)
+
+    # Check that we loaded the data
+    assert len(nwGUI.theProject.projTree) == 8
+    assert len(nwGUI.theProject.projTree._treeOrder) == 8
+    assert len(nwGUI.theProject.projTree._treeRoots) == 4
+    assert nwGUI.theProject.projTree.trashRoot() is None
+    assert nwGUI.theProject.projPath == fncProj
+    assert nwGUI.theProject.projMeta == os.path.join(fncProj, "meta")
+    assert nwGUI.theProject.projFile == "nwProject.nwx"
+    assert nwGUI.theProject.projName == "New Project"
+    assert nwGUI.theProject.bookTitle == ""
+    assert len(nwGUI.theProject.bookAuthors) == 0
+    assert not nwGUI.theProject.spellCheck
+
+    # Check that tree items have been created
+    assert nwGUI.treeView._getTreeItem("73475cb40a568") is not None
+    assert nwGUI.treeView._getTreeItem("25fc0e7096fc6") is not None
+    assert nwGUI.treeView._getTreeItem("31489056e0916") is not None
+    assert nwGUI.treeView._getTreeItem("98010bd9270f9") is not None
+    assert nwGUI.treeView._getTreeItem("0e17daca5f3e1") is not None
+    assert nwGUI.treeView._getTreeItem("44cb730c42048") is not None
+    assert nwGUI.treeView._getTreeItem("71ee45a3c0db9") is not None
+    assert nwGUI.treeView._getTreeItem("811786ad1ae74") is not None
+
+    nwGUI.mainMenu.aSpellCheck.setChecked(True)
+    assert nwGUI.mainMenu._toggleSpellCheck()
+
+    # Change some settings
+    nwGUI.mainConf.hideHScroll = True
+    nwGUI.mainConf.hideVScroll = True
+    nwGUI.mainConf.scrollPastEnd = True
+    nwGUI.mainConf.autoScrollPos = 80
+    nwGUI.mainConf.autoScroll = True
+
+    # Add a Character File
+    nwGUI.switchFocus(nwWidget.TREE)
+    nwGUI.treeView.clearSelection()
+    nwGUI.treeView._getTreeItem("71ee45a3c0db9").setSelected(True)
+    nwGUI.treeView.newTreeItem(nwItemType.FILE, None)
+    assert nwGUI.openSelectedItem()
+
+    # Type something into the document
+    nwGUI.switchFocus(nwWidget.EDITOR)
+    qtbot.keyClick(nwGUI.docEditor, "a", modifier=Qt.ControlModifier, delay=keyDelay)
+    for c in "# Jane Doe":
+        qtbot.keyClick(nwGUI.docEditor, c, delay=typeDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+    for c in "@tag: Jane":
+        qtbot.keyClick(nwGUI.docEditor, c, delay=typeDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+    for c in "This is a file about Jane.":
+        qtbot.keyClick(nwGUI.docEditor, c, delay=typeDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+
+    # Add a Plot File
+    nwGUI.switchFocus(nwWidget.TREE)
+    nwGUI.treeView.clearSelection()
+    nwGUI.treeView._getTreeItem("44cb730c42048").setSelected(True)
+    nwGUI.treeView.newTreeItem(nwItemType.FILE, None)
+    assert nwGUI.openSelectedItem()
+
+    # Type something into the document
+    nwGUI.switchFocus(nwWidget.EDITOR)
+    qtbot.keyClick(nwGUI.docEditor, "a", modifier=Qt.ControlModifier, delay=keyDelay)
+    for c in "# Main Plot":
+        qtbot.keyClick(nwGUI.docEditor, c, delay=typeDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+    for c in "@tag: MainPlot":
+        qtbot.keyClick(nwGUI.docEditor, c, delay=typeDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+    for c in "This is a file detailing the main plot.":
+        qtbot.keyClick(nwGUI.docEditor, c, delay=typeDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+
+    # Add a World File
+    nwGUI.switchFocus(nwWidget.TREE)
+    nwGUI.treeView.clearSelection()
+    nwGUI.treeView._getTreeItem("811786ad1ae74").setSelected(True)
+    nwGUI.treeView.newTreeItem(nwItemType.FILE, None)
+    assert nwGUI.openSelectedItem()
+
+    # Add Some Text
+    nwGUI.docEditor.replaceText("Hello World!")
+    assert nwGUI.docEditor.getText() == "Hello World!"
+    nwGUI.docEditor.replaceText("")
+
+    # Type something into the document
+    nwGUI.switchFocus(nwWidget.EDITOR)
+    qtbot.keyClick(nwGUI.docEditor, "a", modifier=Qt.ControlModifier, delay=keyDelay)
+    for c in "# Main Location":
+        qtbot.keyClick(nwGUI.docEditor, c, delay=typeDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+    for c in "@tag: Home":
+        qtbot.keyClick(nwGUI.docEditor, c, delay=typeDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+    for c in "This is a file describing Jane's home.":
+        qtbot.keyClick(nwGUI.docEditor, c, delay=typeDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+
+    # Trigger autosaves before making more changes
+    nwGUI._autoSaveDocument()
+    nwGUI._autoSaveProject()
+
+    # Select the 'New Scene' file
+    nwGUI.switchFocus(nwWidget.TREE)
+    nwGUI.treeView.clearSelection()
+    nwGUI.treeView._getTreeItem("73475cb40a568").setExpanded(True)
+    nwGUI.treeView._getTreeItem("31489056e0916").setExpanded(True)
+    nwGUI.treeView._getTreeItem("0e17daca5f3e1").setSelected(True)
+    assert nwGUI.openSelectedItem()
+
+    # Type something into the document
+    nwGUI.switchFocus(nwWidget.EDITOR)
+    qtbot.keyClick(nwGUI.docEditor, "a", modifier=Qt.ControlModifier, delay=keyDelay)
+    for c in "# Novel":
+        qtbot.keyClick(nwGUI.docEditor, c, delay=typeDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+
+    for c in "## Chapter":
+        qtbot.keyClick(nwGUI.docEditor, c, delay=typeDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+
+    for c in "@pov: Jane":
+        qtbot.keyClick(nwGUI.docEditor, c, delay=typeDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+    for c in "@plot: MainPlot":
+        qtbot.keyClick(nwGUI.docEditor, c, delay=typeDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+
+    for c in "### Scene":
+        qtbot.keyClick(nwGUI.docEditor, c, delay=typeDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+
+    for c in "% How about a comment?":
+        qtbot.keyClick(nwGUI.docEditor, c, delay=typeDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+    for c in "@pov: Jane":
+        qtbot.keyClick(nwGUI.docEditor, c, delay=typeDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+    for c in "@plot: MainPlot":
+        qtbot.keyClick(nwGUI.docEditor, c, delay=typeDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+    for c in "@location: Home":
+        qtbot.keyClick(nwGUI.docEditor, c, delay=typeDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+
+    for c in "#### Some Section":
+        qtbot.keyClick(nwGUI.docEditor, c, delay=typeDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+
+    for c in "@char: Jane":
+        qtbot.keyClick(nwGUI.docEditor, c, delay=typeDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+
+    for c in "This is a paragraph of nonsense text.":
+        qtbot.keyClick(nwGUI.docEditor, c, delay=typeDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+
+    for c in (
+        "This is another paragraph of much longer nonsense text. "
+        "It is in fact 1 very very NONSENSICAL nonsense text! "
+    ):
+        qtbot.keyClick(nwGUI.docEditor, c, delay=typeDelay)
+    for c in "We can also try replacing \"quotes\", even single 'quotes' are replaced. ":
+        qtbot.keyClick(nwGUI.docEditor, c, delay=typeDelay)
+    for c in "Isn't that nice? ":
+        qtbot.keyClick(nwGUI.docEditor, c, delay=typeDelay)
+    for c in "We can hyphen-ate, make dashes -- and even longer dashes --- if we want. ":
+        qtbot.keyClick(nwGUI.docEditor, c, delay=typeDelay)
+    for c in "Ellipsis? Not a problem either ... ":
+        qtbot.keyClick(nwGUI.docEditor, c, delay=typeDelay)
+    for c in "How about three hyphens - -":
+        qtbot.keyClick(nwGUI.docEditor, c, delay=typeDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Left, delay=keyDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Backspace, delay=keyDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Right, delay=keyDelay)
+    for c in "- for long dash? It works too.":
+        qtbot.keyClick(nwGUI.docEditor, c, delay=typeDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+
+    for c in "\"Full line double quoted text.\"":
+        qtbot.keyClick(nwGUI.docEditor, c, delay=typeDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+
+    for c in "'Full line single quoted text.'":
+        qtbot.keyClick(nwGUI.docEditor, c, delay=typeDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+    qtbot.keyClick(nwGUI.docEditor, Qt.Key_Return, delay=keyDelay)
+
+    qtbot.wait(stepDelay)
+    nwGUI.docEditor.wCounter.run()
+    qtbot.wait(stepDelay)
+
+    # Save the document
+    assert nwGUI.docEditor.docChanged()
+    assert nwGUI.saveDocument()
+    assert not nwGUI.docEditor.docChanged()
+    qtbot.wait(stepDelay)
+    nwGUI.rebuildIndex()
+    qtbot.wait(stepDelay)
+
+    # Open and view the edited document
+    nwGUI.switchFocus(nwWidget.VIEWER)
+    assert nwGUI.openDocument("0e17daca5f3e1")
+    assert nwGUI.viewDocument("0e17daca5f3e1")
+    qtbot.wait(stepDelay)
+    assert nwGUI.saveProject()
+    assert nwGUI.closeDocViewer()
+    qtbot.wait(stepDelay)
+
+    # Check a Quick Create and Delete
+    assert nwGUI.treeView.newTreeItem(nwItemType.FILE, None)
+    newHandle = nwGUI.treeView.getSelectedHandle()
+    assert nwGUI.theProject.projTree["2858dcd1057d3"] is not None
+    assert nwGUI.treeView.deleteItem()
+    assert nwGUI.treeView.setSelectedHandle(newHandle)
+    assert nwGUI.treeView.deleteItem()
+    assert nwGUI.theProject.projTree["2fca346db6561"] is not None  # Trash
+    assert nwGUI.saveProject()
+
+    # Check the files
+    projFile = os.path.join(fncProj, "nwProject.nwx")
+    testFile = os.path.join(outDir, "guiEditor_Main_Final_nwProject.nwx")
+    compFile = os.path.join(refDir, "guiEditor_Main_Final_nwProject.nwx")
+    copyfile(projFile, testFile)
+    assert cmpFiles(testFile, compFile, [2, 6, 7, 8])
+
+    projFile = os.path.join(fncProj, "content", "031b4af5197ec.nwd")
+    testFile = os.path.join(outDir, "guiEditor_Main_Final_031b4af5197ec.nwd")
+    compFile = os.path.join(refDir, "guiEditor_Main_Final_031b4af5197ec.nwd")
+    copyfile(projFile, testFile)
+    assert cmpFiles(testFile, compFile)
+
+    projFile = os.path.join(fncProj, "content", "1a6562590ef19.nwd")
+    testFile = os.path.join(outDir, "guiEditor_Main_Final_1a6562590ef19.nwd")
+    compFile = os.path.join(refDir, "guiEditor_Main_Final_1a6562590ef19.nwd")
+    copyfile(projFile, testFile)
+    assert cmpFiles(testFile, compFile)
+
+    projFile = os.path.join(fncProj, "content", "0e17daca5f3e1.nwd")
+    testFile = os.path.join(outDir, "guiEditor_Main_Final_0e17daca5f3e1.nwd")
+    compFile = os.path.join(refDir, "guiEditor_Main_Final_0e17daca5f3e1.nwd")
+    copyfile(projFile, testFile)
+    assert cmpFiles(testFile, compFile)
+
+    projFile = os.path.join(fncProj, "content", "41cfc0d1f2d12.nwd")
+    testFile = os.path.join(outDir, "guiEditor_Main_Final_41cfc0d1f2d12.nwd")
+    compFile = os.path.join(refDir, "guiEditor_Main_Final_41cfc0d1f2d12.nwd")
+    copyfile(projFile, testFile)
+    assert cmpFiles(testFile, compFile)
+
+    # qtbot.stopForInteraction()
+
+# END Test testGuiMain_Editing