Enhancement

- More consistent test of when adding or deleting a dependency.
- Update one unit test.

src/Task.cpp

@@ -801,6 +801,11 @@ void Task::addDependency (const std::string& uuid)
   if (uuid == get ("uuid"))
     throw std::string (STRING_TASK_DEPEND_ITSELF);
 
+  // Check that uuid is resolvable.
+  int id = context.tdb2.pending.id (uuid);
+  if (id == 0)
+    throw format (STRING_TASK_DEPEND_MISS_CREA, id);
+
   // Store the dependency.
   std::string depends = get ("depends");
   if (depends != "")
@@ -837,6 +842,8 @@ void Task::removeDependency (const std::string& uuid)
     set ("depends", combined);
     recalc_urgency = true;
   }
+  else
+    throw format (STRING_TASK_DEPEND_MISS_DEL, uuid);
 }
 
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