[modules/cpu] Add initial version of CPU utilization module

Re-enable the CPU utilization module as proof-of-concept for the new
core engine.

see #23

tests/modules/test_cpu.py

@@ -0,0 +1,16 @@
+# pylint: disable=C0103,C0111
+
+import unittest
+
+from bumblebee.modules.cpu import Module
+from tests.util import assertWidgetAttributes
+
+class TestCPUModule(unittest.TestCase):
+    def setUp(self):
+        self.module = Module(None)
+
+    def test_widgets(self):
+        widget = self.module.widgets()
+        assertWidgetAttributes(self, widget)
+
+# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4

tests/test_engine.py

@@ -1,13 +1,17 @@
 # pylint: disable=C0103,C0111
+
 import unittest
 
 from bumblebee.error import ModuleLoadError
 from bumblebee.engine import Engine
 from bumblebee.config import Config
 
+from tests.util import MockOutput
+
 class TestEngine(unittest.TestCase):
     def setUp(self):
-        self.engine = Engine(Config())
+        self.engine = Engine(config=Config(), output=MockOutput())
+        self.singleWidgetModule = [{"module": "test"}]
         self.testModule = "test"
         self.invalidModule = "no-such-module"
         self.testModuleSpec = "bumblebee.modules.{}".format(self.testModule)
@@ -41,4 +45,11 @@ class TestEngine(unittest.TestCase):
             [self.testModuleSpec for module in modules]
         )
 
+    def test_run(self):
+        self.engine.load_modules(self.singleWidgetModule)
+        try:
+            self.engine.run()
+        except Exception as e:
+            self.fail(e)
+
 # vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4

tests/test_i3baroutput.py

@@ -32,14 +32,14 @@ class TestI3BarOutput(unittest.TestCase):
     def test_draw_single_widget(self, stdout):
         self.output.draw(self.someWidget)
         result = json.loads(stdout.getvalue())[0]
-        self.assertEquals(result["full_text"], self.someWidget.text())
+        self.assertEquals(result["full_text"], self.someWidget.full_text())
 
     @mock.patch("sys.stdout", new_callable=StringIO)
     def test_draw_multiple_widgets(self, stdout):
         self.output.draw([self.someWidget, self.someWidget])
         result = json.loads(stdout.getvalue())
         for res in result:
-            self.assertEquals(res["full_text"], self.someWidget.text())
+            self.assertEquals(res["full_text"], self.someWidget.full_text())
 
     @mock.patch("sys.stdout", new_callable=StringIO)
     def test_flush(self, stdout):

tests/util.py

@@ -1,10 +1,29 @@
 # pylint: disable=C0103,C0111
 
+from bumblebee.output import Widget
+
+def assertWidgetAttributes(test, widget):
+    test.assertTrue(isinstance(widget, Widget))
+    test.assertTrue(hasattr(widget, "full_text"))
+
+class MockOutput(object):
+    def start(self):
+        pass
+
+    def stop(self):
+        pass
+
+    def draw(self, widgets, engine):
+        engine.stop()
+
+    def flush(self):
+        pass
+
 class MockWidget(object):
     def __init__(self, text):
         self._text = text
 
-    def text(self):
+    def full_text(self):
         return self._text
 
 # vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4