diff --git a/novelwriter/guimain.py b/novelwriter/guimain.py
index 0d4e90a8..d606b8d3 100644
--- a/novelwriter/guimain.py
+++ b/novelwriter/guimain.py
@@ -1392,7 +1392,7 @@ class GuiMain(QMainWindow):
         userIdle = qApp.applicationState() != Qt.ApplicationActive
         self.mainStatus.setUserIdle(editIdle or userIdle)
         SHARED.updateIdleTime(currTime, editIdle or userIdle)
-        self.mainStatus.updateTime(idleTime=SHARED.idleTime)
+        self.mainStatus.updateTime(idleTime=SHARED.projectIdleTime)
         return
 
     @pyqtSlot()
diff --git a/novelwriter/shared.py b/novelwriter/shared.py
index 07ea2d81..eea5fe26 100644
--- a/novelwriter/shared.py
+++ b/novelwriter/shared.py
@@ -43,7 +43,7 @@ logger = logging.getLogger(__name__)
 class SharedData(QObject):
 
     __slots__ = (
-        "_gui", "_theme", "_project", "_leckedBy", "_alert",
+        "_gui", "_theme", "_project", "_lockedBy", "_alert",
         "_idleTime", "_idleRefTime",
     )
 
@@ -58,28 +58,28 @@ class SharedData(QObject):
         self._lockedBy = None
         self._alert = None
         self._idleTime = 0.0
-        self._idleRedTime = time()
+        self._idleRefTime = time()
         return
 
     @property
     def mainGui(self) -> GuiMain:
         """Return the Main GUI instance."""
         if self._gui is None:
-            raise Exception("UserData class not properly initialised")
+            raise Exception("SharedData class not fully initialised")
         return self._gui
 
     @property
     def theme(self) -> GuiTheme:
         """Return the GUI Theme instance."""
         if self._theme is None:
-            raise Exception("UserData class not properly initialised")
+            raise Exception("SharedData class not fully initialised")
         return self._theme
 
     @property
     def project(self) -> NWProject:
         """Return the active NWProject instance."""
         if self._project is None:
-            raise Exception("UserData class not properly initialised")
+            raise Exception("SharedData class not fully initialised")
         return self._project
 
     @property
@@ -92,16 +92,16 @@ class SharedData(QObject):
         """Return cached lock information for the last project."""
         return self._lockedBy
 
+    @property
+    def projectIdleTime(self) -> float:
+        """Return the session idle time."""
+        return self._idleTime
+
     @property
     def alert(self) -> _GuiAlert | None:
         """Return a pointer to the last alert box."""
         return self._alert
 
-    @property
-    def idleTime(self) -> float:
-        """Return the session idle time."""
-        return self._idleTime
-
     ##
     #  Methods
     ##
@@ -154,12 +154,9 @@ class SharedData(QObject):
         the last time this function was called. Otherwise, only the
         reference time is updated.
         """
-        if hasattr(self, "_idleRefTime"):
-            # This method is called by a timer from C++, and the
-            # instance may not have be initialised
-            if userIdle:
-                self._idleTime += currTime - self._idleRefTime
-            self._idleRefTime = currTime
+        if userIdle:
+            self._idleTime += currTime - self._idleRefTime
+        self._idleRefTime = currTime
         return
 
     ##
diff --git a/tests/conftest.py b/tests/conftest.py
index a21551a8..4d6e6e72 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -22,6 +22,7 @@ along with this program. If not, see <https://www.gnu.org/licenses/>.
 import sys
 import pytest
 import shutil
+import logging
 
 from pathlib import Path
 
@@ -62,6 +63,7 @@ def resetConfigVars():
 @pytest.fixture(scope="session", autouse=True)
 def sessionFixture():
     """A session wide fixture to set up the test environment."""
+    logging.root.setLevel(logging.INFO)
     if _TMP_ROOT.exists():
         shutil.rmtree(_TMP_ROOT)
     _TMP_ROOT.mkdir()
@@ -81,6 +83,7 @@ def functionFixture(qtbot):
     CONFIG.__init__()
     CONFIG.initConfig(confPath=_TMP_CONF, dataPath=_TMP_CONF)
     resetConfigVars()
+    logging.getLogger("novelwriter").setLevel(logging.INFO)
 
     return
 
diff --git a/tests/test_base/test_base_init.py b/tests/test_base/test_base_init.py
index b6e09d15..cbc20c51 100644
--- a/tests/test_base/test_base_init.py
+++ b/tests/test_base/test_base_init.py
@@ -30,8 +30,7 @@ from novelwriter import CONFIG, main, logger
 
 @pytest.mark.base
 def testBaseInit_Launch(caplog, monkeypatch, fncPath):
-    """Check launching the main GUI.
-    """
+    """Check launching the main GUI."""
     monkeypatch.setattr("novelwriter.guimain.GuiMain", MockGuiMain)
 
     # TestMode Launch
@@ -80,8 +79,7 @@ def testBaseInit_Launch(caplog, monkeypatch, fncPath):
 
 @pytest.mark.base
 def testBaseInit_Options(monkeypatch, fncPath):
-    """Test command line options for logging level.
-    """
+    """Test command line options for logging level."""
     monkeypatch.setattr("novelwriter.guimain.GuiMain", MockGuiMain)
     monkeypatch.setattr(sys, "argv", [
         "novelWriter.py", "--testmode", f"--config={fncPath}", f"--data={fncPath}"
@@ -146,8 +144,7 @@ def testBaseInit_Options(monkeypatch, fncPath):
 
 @pytest.mark.base
 def testBaseInit_Imports(caplog, monkeypatch, fncPath):
-    """Check import error handling.
-    """
+    """Check import error handling."""
     monkeypatch.setattr("novelwriter.guimain.GuiMain", MockGuiMain)
     monkeypatch.setattr("PyQt5.QtWidgets.QApplication.__init__", lambda *a: None)
     monkeypatch.setattr("PyQt5.QtWidgets.QApplication.exec_", lambda *a: 0)
diff --git a/tests/test_base/test_base_shared.py b/tests/test_base/test_base_shared.py
new file mode 100644
index 00000000..80f80954
--- /dev/null
+++ b/tests/test_base/test_base_shared.py
@@ -0,0 +1,187 @@
+"""
+novelWriter – SharedData Class Tester
+=====================================
+
+This file is a part of novelWriter
+Copyright 2018–2023, 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
+
+from mocked import MockGuiMain, MockTheme
+
+from PyQt5.QtWidgets import QMessageBox
+
+from novelwriter.core.project import NWProject
+from novelwriter.shared import SharedData, _GuiAlert
+from tests.tools import buildTestProject
+
+
+@pytest.mark.base
+def testBaseSharedData_Init():
+    """Test SharedData class initialisation."""
+    shared = SharedData()
+
+    # When not initialised, it should raise exceptions
+    with pytest.raises(Exception):
+        shared.mainGui
+    with pytest.raises(Exception):
+        shared.theme
+    with pytest.raises(Exception):
+        shared.project
+
+    # Create some mock objects
+    mockGui = MockGuiMain()
+    mockTheme = MockTheme()
+    assert mockGui is not mockTheme
+
+    # Properly initialise the class
+    shared.initSharedData(mockGui, mockTheme)  # type: ignore
+
+    assert shared.mainGui is mockGui
+    assert shared.theme is mockTheme
+
+    assert isinstance(shared.project, NWProject)
+    assert shared.hasProject is False
+    assert shared.projectIdleTime == 0.0
+    assert shared.projectLock is None
+
+    assert shared.alert is None
+
+# END Test testBaseSharedData_Init
+
+
+@pytest.mark.base
+def testBaseSharedData_Projects(fncPath, caplog: pytest.LogCaptureFixture):
+    """Test SharedData handling of projects."""
+    project = NWProject()
+    buildTestProject(project, fncPath)
+    project.closeProject(0.0)  # Clears the lockfile
+
+    shared = SharedData()
+    assert shared._project is None
+
+    # Initialise the instance, should create an empty project
+    mockGui = MockGuiMain()
+    mockTheme = MockTheme()
+    shared.initSharedData(mockGui, mockTheme)  # type: ignore
+    assert isinstance(shared.project, NWProject)
+    assert shared.hasProject is False
+
+    # Load the test project
+    assert shared.openProject(fncPath) is True
+    assert shared.hasProject is True
+
+    # We cannot open two projects
+    caplog.clear()
+    assert shared.openProject(fncPath) is False
+    assert caplog.messages[-1] == "A project is already open"
+    assert shared._idleTime == 0.0
+
+    # Update idle time
+    refTime = shared._idleRefTime
+    shared.updateIdleTime(refTime + 1.0, False)
+    shared.updateIdleTime(refTime + 2.0, True)
+    shared.updateIdleTime(refTime + 3.0, False)
+    shared.updateIdleTime(refTime + 4.0, True)
+    assert round(shared.projectIdleTime) == 2
+
+    # Save project
+    assert shared.saveProject() is True
+
+    # Close project
+    shared.closeProject()
+    assert shared.hasProject is False
+
+    # Cannot save a project after it's been closed
+    assert shared.saveProject() is False
+
+    # Check locked project info
+    project.openProject(fncPath)  # First open with our independent project instance
+    assert shared.hasProject is False
+    assert shared.projectLock is None
+    assert shared.openProject(fncPath) is False  # Then with out shared instance
+    assert shared.hasProject is False
+    assert isinstance(shared.projectLock, list)
+
+# END Test testBaseSharedData_Projects
+
+
+@pytest.mark.base
+def testBaseSharedData_Alerts(monkeypatch, caplog: pytest.LogCaptureFixture):
+    """Test SharedData class alert helper functions."""
+    monkeypatch.setattr(QMessageBox, "exec_", lambda *a: None)
+    monkeypatch.setattr(QMessageBox, "result", lambda *a: QMessageBox.Yes)
+
+    shared = SharedData()
+
+    mockGui = MockGuiMain()
+    mockTheme = MockTheme()
+    shared.initSharedData(mockGui, mockTheme)  # type: ignore
+
+    assert shared.alert is None
+
+    # Info box
+    caplog.clear()
+    shared.info("Hello World", info="foo", details="bar")
+    assert isinstance(shared.alert, _GuiAlert)
+    assert shared.alert.text() == "Hello World"
+    assert shared.alert.informativeText() == "foo"
+    assert shared.alert.detailedText() == "bar"
+    assert caplog.text.strip().startswith("INFO")
+    assert caplog.text.strip().endswith("Hello World foo bar")
+    shared._alert = None
+
+    # Warning box
+    caplog.clear()
+    shared.warn("Oops!", info="foo", details="bar")
+    assert isinstance(shared.alert, _GuiAlert)
+    assert shared.alert.text() == "Oops!"
+    assert shared.alert.informativeText() == "foo"
+    assert shared.alert.detailedText() == "bar"
+    assert caplog.text.strip().startswith("WARNING")
+    assert caplog.text.strip().endswith("Oops! foo bar")
+    shared._alert = None
+
+    # Error box
+    caplog.clear()
+    shared.error("Oh noes!", info="foo", details="bar")
+    assert isinstance(shared.alert, _GuiAlert)
+    assert shared.alert.text() == "Oh noes!"
+    assert shared.alert.informativeText() == "foo"
+    assert shared.alert.detailedText() == "bar"
+    assert caplog.text.strip().startswith("ERROR")
+    assert caplog.text.strip().endswith("Oh noes! foo bar")
+    shared._alert = None
+
+    # Error box with exception
+    caplog.clear()
+    shared.error("Oh noes!", info="foo", details="bar", exc=Exception("Boom!"))
+    assert isinstance(shared.alert, _GuiAlert)
+    assert shared.alert.text() == "Oh noes!"
+    assert shared.alert.informativeText() == "foo<br><b>Exception</b>: Boom!"
+    assert shared.alert.detailedText() == "bar"
+    assert caplog.text.strip().startswith("ERROR")
+    assert caplog.text.strip().endswith("Oh noes! foo bar")
+    shared._alert = None
+
+    # Question box
+    assert shared.question("Why?") is True
+    assert isinstance(shared.alert, _GuiAlert)
+    assert shared.alert.text() == "Why?"
+    shared._alert = None
+
+# END Test testBaseSharedData_Alerts