Always report running status for task

Sometime we run task so fast, so we get only pending
and succeed/failed status report without running.

Such behavior breaks State Machine flow for tasks history
in Nailgun. With this change we will send running status
for task in the moment of actual run.

Change-Id: I46d86e31b5e35a54d1c33e41ea6fbdbc0d74c66b
Closes-Bug: #1564295

lib/astute/task_node.rb

@@ -26,6 +26,7 @@ module Astute
       @task_engine.run
       task.set_status_running
       set_status_busy
+      report_node_status
     end
 
     def poll

spec/unit/task_node_spec.rb

@@ -25,6 +25,7 @@ describe Astute::TaskNode do
   let(:ctx) do
     ctx = mock('context')
     ctx.stubs(:task_id)
+    ctx.stubs(:report)
     ctx
   end
 
@@ -77,6 +78,19 @@ describe Astute::TaskNode do
       expect(task.status).to eql(:running)
     end
 
+    it 'should report about task as running' do
+      Astute::Puppet.any_instance.stubs(:run)
+      ctx.expects(:report).with('nodes' => [{
+        'uid' => 'node_id',
+        'status' => 'deploying',
+        'progress' => 0,
+        'deployment_graph_task_name' => 'openstack-haproxy-mysqld',
+        'task_status' => 'running',
+        'custom' => {}
+      }])
+      task_node.run(task)
+    end
+
     context 'support different task type' do
 
       let(:task_data) do