diff --git a/tests/modules/core/test_xrandr.py b/tests/modules/core/test_xrandr.py
index 720d96a..b4e6156 100644
--- a/tests/modules/core/test_xrandr.py
+++ b/tests/modules/core/test_xrandr.py
@@ -1,7 +1,157 @@
-import pytest
+import sys
 
-pytest.importorskip("i3")
+from core.input import trigger, LEFT_MOUSE, RIGHT_MOUSE
+from core.config import Config
+from modules.core.xrandr import Module
 
-def test_load_module():
-    __import__("modules.core.xrandr")
 
+MOCK_EXECUTE = "modules.core.xrandr.util.cli.execute"
+
+
+def mock_xrandr(mocker, xrandr_output):
+    return mocker.patch(MOCK_EXECUTE, return_value=xrandr_output)
+
+
+def assert_widgets(module, *expected_widgets):
+    assert len(module.widgets()) == len(expected_widgets)
+
+    for widget, (name, state, pos) in zip(module.widgets(), expected_widgets):
+        assert widget.name == name
+        assert widget.get("state") == state
+        assert widget.get("pos") == pos
+
+
+def assert_trigger(mocker, module, widget_index, button, expected_command):
+    xrandr_cli = mock_xrandr(mocker, "")
+    widget = module.widgets()[widget_index]
+    trigger({"button": button, "instance": widget.id, "name": module.id})
+
+    if expected_command is None:
+        xrandr_cli.assert_not_called()
+    else:
+        xrandr_cli.assert_called_once_with(expected_command)
+
+
+def test_autoupdate(mocker):
+    xrandr_cli = mock_xrandr(mocker, FULL_OUTPUT_TWO_DISPLAYS)
+    module = Module(Config([]), theme=None)
+    module.update()
+    xrandr_cli.assert_called_once_with("xrandr -q")
+
+    assert_widgets(module, ("eDP-1-1", "on", 0), ("HDMI-1-1", "on", 1920))
+
+    assert_trigger(mocker, module, 0, LEFT_MOUSE, "xrandr --output eDP-1-1 --off")
+    assert_trigger(mocker, module, 0, RIGHT_MOUSE, "xrandr --output eDP-1-1 --off")
+    assert_trigger(mocker, module, 1, LEFT_MOUSE, "xrandr --output HDMI-1-1 --off")
+    assert_trigger(mocker, module, 1, RIGHT_MOUSE, "xrandr --output HDMI-1-1 --off")
+
+
+def test_display_off(mocker):
+    xrandr_cli = mock_xrandr(mocker, TRUNCATED_OUTPUT_DISPLAY_OFF)
+    module = Module(Config([]), theme=None)
+    module.update()
+    xrandr_cli.assert_called_once_with("xrandr -q")
+
+    assert_widgets(module, ("eDP-1-1", "on", 0), ("HDMI-1-1", "off", sys.maxsize))
+
+    assert_trigger(mocker, module, 0, LEFT_MOUSE, None)
+    assert_trigger(mocker, module, 0, RIGHT_MOUSE, None)
+    assert_trigger(mocker, module, 1, LEFT_MOUSE, "xrandr --output HDMI-1-1 --auto --left-of eDP-1-1")
+    assert_trigger(mocker, module, 1, RIGHT_MOUSE, "xrandr --output HDMI-1-1 --auto --right-of eDP-1-1")
+
+
+def test_no_autoupdate(mocker):
+    xrandr_cli = mock_xrandr(mocker, FULL_OUTPUT_TWO_DISPLAYS)
+    module = Module(Config(["-p", "xrandr.autoupdate=false"]), theme=None)
+    module.update()
+    xrandr_cli.assert_called_once_with("xrandr -q")
+
+    assert_widgets(
+        module, ("eDP-1-1", "on", 0), ("HDMI-1-1", "on", 1920), (None, "refresh", None)
+    )
+
+    assert_trigger(mocker, module, 0, LEFT_MOUSE, "xrandr --output eDP-1-1 --off")
+    assert_trigger(mocker, module, 0, RIGHT_MOUSE, "xrandr --output eDP-1-1 --off")
+    assert_trigger(mocker, module, 1, LEFT_MOUSE, "xrandr --output HDMI-1-1 --off")
+    assert_trigger(mocker, module, 1, RIGHT_MOUSE, "xrandr --output HDMI-1-1 --off")
+
+
+def test_exclude(mocker):
+    xrandr_cli = mock_xrandr(mocker, FULL_OUTPUT_TWO_DISPLAYS)
+    module = Module(Config(["-p", "xrandr.exclude=eDP"]), theme=None)
+    module.update()
+    xrandr_cli.assert_called_once_with("xrandr -q")
+
+    assert_widgets(module, ("HDMI-1-1", "on", 1920))
+
+    assert_trigger(mocker, module, 0, LEFT_MOUSE, "xrandr --output HDMI-1-1 --off")
+    assert_trigger(mocker, module, 0, RIGHT_MOUSE, "xrandr --output HDMI-1-1 --off")
+
+
+def test_exclude_off(mocker):
+    xrandr_cli = mock_xrandr(mocker, TRUNCATED_OUTPUT_DISPLAY_OFF)
+    module = Module(Config(["-p", "xrandr.exclude=eDP"]), theme=None)
+    module.update()
+    xrandr_cli.assert_called_once_with("xrandr -q")
+
+    assert_widgets(module, ("HDMI-1-1", "off", sys.maxsize))
+
+    assert_trigger(mocker, module, 0, LEFT_MOUSE, "xrandr --output HDMI-1-1 --auto --left-of eDP-1-1")
+    assert_trigger(mocker, module, 0, RIGHT_MOUSE, "xrandr --output HDMI-1-1 --auto --right-of eDP-1-1")
+
+
+# xrandr sample data
+
+FULL_OUTPUT_TWO_DISPLAYS = """Screen 0: minimum 8 x 8, current 4480 x 1440, maximum 32767 x 32767
+eDP-1-1 connected primary 1920x1080+0+0 344mm x 193mm
+   1920x1080     60.00*+  59.93    48.00
+   1680x1050     59.95    59.88
+   1600x1024     60.17
+   1400x1050     59.98
+   1280x1024     60.02
+   1440x900      59.89
+   1280x960      60.00
+   1360x768      59.80    59.96
+   1152x864      60.00
+   1024x768      60.04    60.00
+   960x720       60.00
+   928x696       60.05
+   896x672       60.01
+   960x600       60.00
+   960x540       59.99
+   800x600       60.00    60.32    56.25
+   840x525       60.01    59.88
+   800x512       60.17
+   700x525       59.98
+   640x512       60.02
+   720x450       59.89
+   640x480       60.00    59.94
+   680x384       59.80    59.96
+   576x432       60.06
+   512x384       60.00
+   400x300       60.32    56.34
+   320x240       60.05
+HDMI-1-1 connected 2560x1440+1920+0 596mm x 335mm
+   2560x1440     59.95*+
+   1920x1080     60.00    50.00    59.94
+   1920x1080i    60.00    50.00    59.94
+   1680x1050     59.88
+   1600x900      60.00
+   1280x1024     60.02
+   1280x800      59.91
+   1280x720      60.00    50.00    59.94
+   1024x768      60.00
+   800x600       60.32
+   720x576       50.00
+   720x576i      50.00
+   720x480       60.00    59.94
+   720x480i      60.00    59.94
+   640x480       60.00    59.94
+"""
+
+
+TRUNCATED_OUTPUT_DISPLAY_OFF = """eDP-1-1 connected primary 1920x1080+0+0 344mm x 193mm
+   1920x1080     60.00*+  59.93    48.00
+HDMI-1-1 connected
+   2560x1440     59.95 +
+"""