Add new pytest_xdist_node_collection_finished hook

Fix #8

testing/test_newhooks.py

@@ -0,0 +1,50 @@
+import pytest
+
+
+class TestHooks:
+
+    @pytest.fixture(autouse=True)
+    def create_test_file(self, testdir):
+        testdir.makepyfile("""
+            import os
+            def test_a(): pass
+            def test_b(): pass
+            def test_c(): pass
+        """)
+
+    def test_runtest_logreport(self, testdir):
+        """Test that log reports from pytest_runtest_logreport when running
+        with xdist contain a "node" attribute. (#8)
+        """
+        testdir.makeconftest("""
+            def pytest_runtest_logreport(report):
+                if hasattr(report, 'node'):
+                    slaveid = report.node.slaveinput['slaveid']
+                    if report.when == "call":
+                        print("HOOK: %s %s" % (report.nodeid, slaveid))
+        """)
+        res = testdir.runpytest('-n1', '-s')
+        res.stdout.fnmatch_lines([
+            '*HOOK: test_runtest_logreport.py::test_a gw0*',
+            '*HOOK: test_runtest_logreport.py::test_b gw0*',
+            '*HOOK: test_runtest_logreport.py::test_c gw0*',
+            '*3 passed*',
+        ])
+
+    def test_node_collection_finished(self, testdir):
+        """Test pytest_xdist_node_collection_finished hook (#8).
+        """
+        testdir.makeconftest("""
+            def pytest_xdist_node_collection_finished(node, ids):
+                slaveid = node.slaveinput['slaveid']
+                stripped_ids = [x.split('::')[1] for x in ids]
+                print("HOOK: %s %s" % (slaveid, ', '.join(stripped_ids)))
+        """)
+        res = testdir.runpytest('-n2', '-s')
+        res.stdout.fnmatch_lines_random([
+            '*HOOK: gw0 test_a, test_b, test_c',
+            '*HOOK: gw1 test_a, test_b, test_c',
+        ])
+        res.stdout.fnmatch_lines([
+            '*3 passed*',
+        ])