erp5_test_result: fix getIntIndex attribute error for Scalability Test

Suite

Module erp5.component.document.erp5_version.ERP5ProjectUnitTestDistributor, line 326, in getTestSuiteSortKey
  wanted_test_core_quantity = PRIORITY_MAPPING[test_suite.getIntIndex()][1]
AttributeError: getIntIndex

bt5/erp5_test_result/PortalTypePropertySheetTemplateItem/property_sheet_list.xml

@@ -21,6 +21,7 @@
  <portal_type id="Scalability Test Suite">
   <item>Arrow</item>
   <item>ScalabilityTestSuite</item>
+  <item>SortIndex</item>
   <item>TestSuite</item>
  </portal_type>
  <portal_type id="SlapOS Agent Distributor">

bt5/erp5_test_result/TestTemplateItem/portal_components/test.erp5.testTaskDistribution.py

@@ -1262,6 +1262,24 @@ class TestTaskDistribution(TaskDistributionTestCase):
     for suite in config_nodes.values():
       self.assertEquals(suite, [])
 
+  def test_16A_startTestSuiteERP5ScalabilityDistributorWithRunningTestResult(self):
+    # Subscribe nodes
+    self.scalability_distributor.subscribeNode("COMP1-Scalability-Node1", computer_guid="COMP-1")
+    # Create test suite
+    test_suite = self._createTestSuite(quantity=1,priority=1, reference_correction=0,
+                       specialise_value=self.scalability_distributor, portal_type="Scalability Test Suite")[0]
+    self.tic()
+    self._callOptimizeAlarm()
+    test_result = self.test_result_module.newContent(
+      portal_type = 'Test Result',
+      title = test_suite.getTitle()
+    )
+    test_result.start()
+    self.tic()
+    configuration = self.scalability_distributor.startTestSuite(title="COMP1-Scalability-Node1")
+    self.assertNotEquals(configuration, [])
+
+
   def test_17_isMasterTestnodeERP5ScalabilityDistributor(self):
     """
     Check the method isMasterTestnode()

bt5/erp5_test_result/bt/template_portal_type_property_sheet_list

@@ -9,6 +9,7 @@ Gitlab REST Connector | Reference
 Gitlab REST Connector | Url
 Scalability Test Suite | Arrow
 Scalability Test Suite | ScalabilityTestSuite
+Scalability Test Suite | SortIndex
 Scalability Test Suite | TestSuite
 SlapOS Agent Distributor | ScalabilityDistributor
 SlapOS Agent Test Suite | Arrow