Refactor scheduller interface, make more properties instead of methods

testing/test_dsession.py

@@ -65,13 +65,13 @@ class TestEachScheduling:
         assert sched.node2collection[node1] == collection
         assert sched.node2collection[node2] == collection
         sched.schedule()
-        assert sched.tests_finished()
+        assert sched.tests_finished
         assert node1.sent == ['ALL']
         assert node2.sent == ['ALL']
         sched.remove_item(node1, 0)
-        assert sched.tests_finished()
+        assert sched.tests_finished
         sched.remove_item(node2, 0)
-        assert sched.tests_finished()
+        assert sched.tests_finished
 
     def test_schedule_remove_node(self, testdir):
         node1 = MockNode()
@@ -84,11 +84,11 @@ class TestEachScheduling:
         assert sched.collection_is_completed
         assert sched.node2collection[node1] == collection
         sched.schedule()
-        assert sched.tests_finished()
+        assert sched.tests_finished
         crashitem = sched.remove_node(node1)
         assert crashitem
-        assert sched.tests_finished()
+        assert sched.tests_finished
-        assert not sched.has_nodes()
+        assert not sched.nodes
 
 
 class TestLoadScheduling:
@@ -108,13 +108,13 @@ class TestLoadScheduling:
         assert sched.node2collection[node2] == collection
         sched.schedule()
         assert not sched.pending
-        assert sched.tests_finished()
+        assert sched.tests_finished
         assert len(node1.sent) == 1
         assert len(node2.sent) == 1
         assert node1.sent == [0]
         assert node2.sent == [1]
         sched.remove_item(node1, node1.sent[0])
-        assert sched.tests_finished()
+        assert sched.tests_finished
 
     def test_schedule_batch_size(self, testdir):
         config = testdir.parseconfig("--tx=2*popen")
@@ -126,7 +126,7 @@ class TestLoadScheduling:
         sched.add_node_collection(node1, col)
         sched.add_node_collection(node2, col)
         sched.schedule()
-        # assert not sched.tests_finished()
+        # assert not sched.tests_finished
         sent1 = node1.sent
         sent2 = node2.sent
         assert sent1 == [0, 2]
@@ -154,7 +154,7 @@ class TestLoadScheduling:
         sched.add_node_collection(node1, col)
         sched.add_node_collection(node2, col)
         sched.schedule()
-        # assert not sched.tests_finished()
+        # assert not sched.tests_finished
         sent1 = node1.sent
         sent2 = node2.sent
         sent3 = node3.sent
@@ -174,7 +174,7 @@ class TestLoadScheduling:
         sched.add_node_collection(node1, col)
         sched.add_node_collection(node2, col)
         sched.schedule()
-        # assert not sched.tests_finished()
+        # assert not sched.tests_finished
         sent1 = node1.sent
         sent2 = node2.sent
         sent3 = node3.sent

xdist/dsession.py

@@ -42,9 +42,18 @@ class EachScheduling:
         """A list of all nodes in the scheduler."""
         return list(self.node2pending.keys())
 
-    def has_nodes(self):
+    @property
-        return bool(self.node2pending)
+    def tests_finished(self):
+        if not self.collection_is_completed:
+            return False
+        if self._removed2pending:
+            return False
+        for pending in self.node2pending.values():
+            if len(pending) >= 2:
+                return False
+        return True
 
+    @property
     def has_pending(self):
         """Return True if there are pending test items
 
@@ -61,16 +70,6 @@ class EachScheduling:
         assert node not in self.node2pending
         self.node2pending[node] = []
 
-    def tests_finished(self):
-        if not self.collection_is_completed:
-            return False
-        if self._removed2pending:
-            return False
-        for pending in self.node2pending.values():
-            if len(pending) >= 2:
-                return False
-        return True
-
     def add_node_collection(self, node, collection):
         """Add the collected test items from a node
 
@@ -209,6 +208,19 @@ class LoadScheduling:
         """
         return len(self.node2collection) >= self.numnodes
 
+    @property
+    def tests_finished(self):
+        """Return True if all tests have been executed by the nodes."""
+        if not self.collection_is_completed:
+            return False
+        if self.pending:
+            return False
+        for pending in self.node2pending.values():
+            if len(pending) >= 2:
+                return False
+        return True
+
+    @property
     def has_pending(self):
         """Return True if there are pending test items
 
@@ -223,10 +235,6 @@ class LoadScheduling:
                 return True
         return False
 
-    def has_nodes(self):
-        """Return True if nodes exist in the scheduler."""
-        return bool(self.node2pending)
-
     def add_node(self, node):
         """Add a new node to the scheduler.
 
@@ -239,17 +247,6 @@ class LoadScheduling:
         assert node not in self.node2pending
         self.node2pending[node] = []
 
-    def tests_finished(self):
-        """Return True if all tests have been executed by the nodes."""
-        if not self.collection_is_completed:
-            return False
-        if self.pending:
-            return False
-        for pending in self.node2pending.values():
-            if len(pending) >= 2:
-                return False
-        return True
-
     def add_node_collection(self, node, collection):
         """Add the collected test items from a node
 
@@ -559,7 +556,7 @@ class DSession:
         call = getattr(self, method)
         self.log("calling method", method, kwargs)
         call(**kwargs)
-        if self.sched.tests_finished():
+        if self.sched.tests_finished:
             self.triggershutdown()
 
     #
@@ -645,7 +642,7 @@ class DSession:
         if self.terminal:
             self.trdist.setstatus(node.gateway.spec, "[%d]" % (len(ids)))
         if self.sched.collection_is_completed:
-            if self.terminal and not self.sched.has_pending():
+            if self.terminal and not self.sched.has_pending:
                 self.trdist.ensure_show_status()
                 self.terminal.write_line("")
                 self.terminal.write_line("scheduling tests via %s" % (