Create arch-update tests

tests/modules/contrib/test_arch-update.py

@@ -1,7 +1,76 @@
 import pytest
 
+import util.cli
+import core.config
+import modules.contrib.arch_update
+
+@pytest.fixture
+def module():
+    module = modules.contrib.arch_update.Module(
+        config=core.config.Config([]),
+        theme=None
+    )
+
+    yield module
+
 def test_load_module():
     __import__("modules.contrib.arch-update")
 
 def test_load_symbolic_link_module():
     __import__("modules.contrib.arch_update")
+
+def test_with_one_package(module, mocker):
+    command = mocker.patch(
+        'util.cli.execute',
+        return_value=(0, 'bumblebee 1.0.0')
+    )
+
+    module.update()
+
+    command.assert_called_with(
+        'checkupdates',
+        ignore_errors=True,
+        return_exitcode=True
+    )
+
+    widget = module.widget()
+    assert widget.full_text() == 'Update Arch: 1'
+    assert module.state(widget) == None
+    assert module.hidden() == False
+
+def test_with_two_packages(module, mocker):
+    command = mocker.patch(
+        'util.cli.execute',
+        return_value=(0, 'bumblebee 1.0.0\ni3wm 3.5.7')
+    )
+
+    module.update()
+
+    widget = module.widget()
+    assert widget.full_text() == 'Update Arch: 2'
+    assert module.state(widget) == 'warning'
+    assert module.hidden() == False
+
+def test_with_no_packages(module, mocker):
+    mocker.patch('util.cli.execute', return_value=(2, ''))
+
+    module.update()
+
+    widget = module.widget()
+    assert widget.full_text() == 'Update Arch: 0'
+    assert module.state(widget) == None
+    assert module.hidden() == True
+
+def test_with_unknown_code(module, mocker):
+    mocker.patch('util.cli.execute', return_value=(99, 'error'))
+    logger = mocker.patch('logging.error')
+
+    module.update()
+
+    logger.assert_called_with('checkupdates exited with {}: {}'.format(99, 'error'))
+
+    widget = module.widget()
+    assert widget.full_text() == 'Update Arch: 0'
+    assert module.state(widget) == 'warning'
+    assert module.hidden() == False
+