Remove the sleep() in tick() that causes a minimum execution time of 2*PERIOD, more explicit status display and a small test case for console plugin.

bonobo/execution/graph.py

@@ -77,7 +77,7 @@ class GraphExecutionContext:
     def start(self, starter=None):
         self.register_plugins()
         self.dispatch(events.START)
-        self.tick()
+        self.tick(pause=False)
         for node in self.nodes:
             if starter is None:
                 node.start()
@@ -85,8 +85,9 @@ class GraphExecutionContext:
                 starter(node)
         self.dispatch(events.STARTED)
 
-    def tick(self):
+    def tick(self, pause=True):
         self.dispatch(events.TICK)
+        if pause:
             sleep(self.TICK_PERIOD)
 
     def kill(self):
@@ -102,7 +103,7 @@ class GraphExecutionContext:
                 node_context.stop()
             else:
                 stopper(node_context)
-        self.tick()
+        self.tick(pause=False)
         self.dispatch(events.STOPPED)
         self.unregister_plugins()
 

bonobo/execution/node.py

@@ -42,6 +42,8 @@ class NodeExecutionContext(WithStatistics, LoopingExecutionContext):
     def get_flags_as_string(self):
         if self.killed:
             return '[killed]'
+        if self.stopped:
+            return '[done]'
         return ''
 
     def write(self, *messages):

bonobo/plugins/console.py

@@ -30,7 +30,7 @@ class ConsoleOutputPlugin(Plugin):
     _stdout = sys.stdout
     _stderr = sys.stderr
 
-    # When the plugin is started, we'll set the real value of this.
+    # When the plugin is instanciated, we'll set the real value of this.
     isatty = False
 
     # Whether we're on windows, or a real operating system.
@@ -50,6 +50,10 @@ class ConsoleOutputPlugin(Plugin):
         dispatcher.remove_listener(events.START, self.setup)
 
     def setup(self, event):
+        # TODO this wont work if one instance is registered with more than one context.
+        # Two options:
+        # - move state to context
+        # - forbid registering more than once
         self.prefix = ''
         self.counter = 0
         self._append_cache = ''
@@ -88,31 +92,12 @@ class ConsoleOutputPlugin(Plugin):
         for i in context.graph.topologically_sorted_indexes:
             node = context[i]
             name_suffix = '({})'.format(i) if settings.DEBUG.get() else ''
-            if node.alive:
+
+            liveliness_color = alive_color if node.alive else dead_color
+            liveliness_prefix = ' {}{}{} '.format(liveliness_color, node.status, Style.RESET_ALL)
             _line = ''.join(
                 (
-                        ' ',
-                        alive_color,
-                        '+',
-                        Style.RESET_ALL,
-                        ' ',
-                        node.name,
-                        name_suffix,
-                        ' ',
-                        node.get_statistics_as_string(),
-                        ' ',
-                        node.get_flags_as_string(),
-                        Style.RESET_ALL,
-                        ' ',
-                    )
-                )
-            else:
-                _line = ''.join(
-                    (
-                        ' ',
-                        dead_color,
-                        '-',
-                        ' ',
+                    liveliness_prefix,
                     node.name,
                     name_suffix,
                     ' ',
@@ -185,4 +170,4 @@ class IOBuffer():
 def memory_usage():
     import os, psutil
     process = psutil.Process(os.getpid())
-    return process.memory_info()[0] / float(2**20)
+    return process.memory_info()[0] / float(2 ** 20)

tests/plugins/test_console.py

@@ -0,0 +1,36 @@
+from unittest.mock import MagicMock
+
+import bonobo
+from bonobo.execution import events
+from bonobo.execution.graph import GraphExecutionContext
+from bonobo.plugins.console import ConsoleOutputPlugin
+from whistle import EventDispatcher
+
+
+def test_register_unregister():
+    plugin = ConsoleOutputPlugin()
+    dispatcher = EventDispatcher()
+
+    plugin.register(dispatcher)
+    assert plugin.setup in dispatcher.get_listeners(events.START)
+    assert plugin.tick in dispatcher.get_listeners(events.TICK)
+    assert plugin.teardown in dispatcher.get_listeners(events.STOPPED)
+    plugin.unregister(dispatcher)
+    assert plugin.setup not in dispatcher.get_listeners(events.START)
+    assert plugin.tick not in dispatcher.get_listeners(events.TICK)
+    assert plugin.teardown not in dispatcher.get_listeners(events.STOPPED)
+
+
+def test_one_pass():
+    plugin = ConsoleOutputPlugin()
+    dispatcher = EventDispatcher()
+    plugin.register(dispatcher)
+
+    graph = bonobo.Graph()
+    context = MagicMock(spec=GraphExecutionContext(graph))
+
+    dispatcher.dispatch(events.START, events.ExecutionEvent(context))
+    dispatcher.dispatch(events.TICK, events.ExecutionEvent(context))
+    dispatcher.dispatch(events.STOPPED, events.ExecutionEvent(context))
+
+    plugin.unregister(dispatcher)