tests: Add basic Task tests

[etc/taskwarrior.git] / tasklib / task.py

diff --git a/tasklib/task.py b/tasklib/task.py
index 36f3c3b13054e4bdab5870ec8e663c89535c5489..86e98ec40b7a8e34ecea8080b090ad3b0a894dd2 100644 (file)
--- a/tasklib/task.py
+++ b/tasklib/task.py
@@ -88,9 +88,20 @@ class Task(TaskResource):
         """
         pass
 
-    def __init__(self, warrior, data={}):
+    class NotSaved(Exception):
+        """
+        Raised when the operation cannot be performed on the task, because
+        it has not been saved to TaskWarrior yet.
+        """
+        pass
+
+    def __init__(self, warrior, data={}, **kwargs):
         self.warrior = warrior
-        self._load_data(data)
+
+        # We keep data for backwards compatibility
+        kwargs.update(data)
+
+        self._load_data(kwargs)
         self._modified_fields = set()
 
     def __unicode__(self):
@@ -136,11 +147,14 @@ class Task(TaskResource):
         return ','.join(tags) if tags else ''
 
     def delete(self):
+        if not self.saved:
+            raise Task.NotSaved("Task needs to be saved before it can be deleted")
+
         # Refresh the status, and raise exception if the task is deleted
         self.refresh(only_fields=['status'])
 
         if self.deleted:
-            raise self.DeletedTask("Task was already deleted")
+            raise Task.DeletedTask("Task was already deleted")
 
         self.warrior.execute_command([self['uuid'], 'delete'], config_override={
             'confirmation': 'no',
@@ -151,13 +165,16 @@ class Task(TaskResource):
 
 
     def done(self):
+        if not self.saved:
+            raise Task.NotSaved("Task needs to be saved before it can be completed")
+
         # Refresh, and raise exception if task is already completed/deleted
         self.refresh(only_fields=['status'])
 
         if self.completed:
-            raise self.CompletedTask("Cannot complete a completed task")
+            raise Task.CompletedTask("Cannot complete a completed task")
         elif self.deleted:
-            raise self.DeletedTask("Deleted task cannot be completed")
+            raise Task.DeletedTask("Deleted task cannot be completed")
 
         self.warrior.execute_command([self['uuid'], 'done'])
 
@@ -186,17 +203,21 @@ class Task(TaskResource):
         self.refresh()
 
     def add_annotation(self, annotation):
+        if not self.saved:
+            raise Task.NotSaved("Task needs to be saved to add annotation")
+
         args = [self['uuid'], 'annotate', annotation]
         self.warrior.execute_command(args)
-        # TODO: This will not work with the tasks that are not yet saved
         self.refresh(only_fields=['annotations'])
 
     def remove_annotation(self, annotation):
+        if not self.saved:
+            raise Task.NotSaved("Task needs to be saved to add annotation")
+
         if isinstance(annotation, TaskAnnotation):
             annotation = annotation['description']
         args = [self['uuid'], 'denotate', annotation]
         self.warrior.execute_command(args)
-        # TODO: This will not work with the tasks that are not yet saved
         self.refresh(only_fields=['annotations'])
 
     def _get_modified_fields_as_args(self):
@@ -216,9 +237,9 @@ class Task(TaskResource):
         return args
 
     def refresh(self, only_fields=[]):
-        # Do not refresh for tasks that are not yet saved in the TW
+        # Raise error when trying to refresh a task that has not been saved
         if not self.saved:
-            return
+            raise Task.NotSaved("Task needs to be saved to be refreshed")
 
         # We need to use ID as backup for uuid here for the refreshes
         # of newly saved tasks. Any other place in the code is fine