This seemed to fix the test on the local machine

.travis.yml

@@ -8,14 +8,15 @@ addons:
   apt:
     packages:
       - libenchant-dev
+      - python3-pyqt5
+      - python3-pyqt5.qtsvg
 python:
   - "3.6"
   - "3.7"
   - "3.8"
 install:
   - pip install --upgrade pip
-  - pip install lxml
+  - pip install -r requirements.txt
-  - pip install pyqt5==5.14.2
 # - pip install pytest-faulthandler
   - pip install PyVirtualDisplay
   - pip install pytest-xvfb

nw/gui/doceditor.py

@@ -593,7 +593,7 @@ class GuiDocEditor(QTextEdit):
         as it is triggered on every keypress when typing.
         """
         self.hasSelection = self.textCursor().hasSelection()
-        if not self.hasFocus():
+        if self.docSearch.searchBox.hasFocus():
             # Block the event when the focus is on the search bar.
             return