Merge pull request #2468 from nicoddemus/collection-report-2464

Fix incorrect "collected items" report when specifying tests on the command-line

_pytest/main.py

@@ -763,7 +763,11 @@ class Session(FSCollector):
                 if not has_matched and len(rep.result) == 1 and x.name == "()":
                     nextnames.insert(0, name)
                     resultnodes.extend(self.matchnodes([x], nextnames))
-            node.ihook.pytest_collectreport(report=rep)
+            else:
+                # report collection failures here to avoid failing to run some test
+                # specified in the command line because the module could not be
+                # imported (#134)
+                node.ihook.pytest_collectreport(report=rep)
         return resultnodes
 
     def genitems(self, node):

_pytest/terminal.py

@@ -282,7 +282,7 @@ class TerminalReporter:
             line = "collected "
         else:
             line = "collecting "
-        line += str(self._numcollected) + " items"
+        line += str(self._numcollected) + " item" + ('' if self._numcollected == 1 else 's')
         if errors:
             line += " / %d errors" % errors
         if skipped:

changelog/2464.bugfix

@@ -0,0 +1 @@
+Fix incorrect "collected items" report when specifying tests on the command-line.

testing/acceptance_test.py

@@ -317,8 +317,8 @@ class TestGeneralUsage(object):
         ])
         assert 'sessionstarttime' not in result.stderr.str()
 
-    @pytest.mark.parametrize('lookfor', ['test_fun.py', 'test_fun.py::test_a'])
-    def test_issue134_report_syntaxerror_when_collecting_member(self, testdir, lookfor):
+    @pytest.mark.parametrize('lookfor', ['test_fun.py::test_a'])
+    def test_issue134_report_error_when_collecting_member(self, testdir, lookfor):
         testdir.makepyfile(test_fun="""
             def test_a():
                 pass

testing/test_collection.py

@@ -369,6 +369,11 @@ class TestSession(object):
         assert len(colitems) == 1
         assert colitems[0].fspath == p
 
+    def get_reported_items(self, hookrec):
+        """Return pytest.Item instances reported by the pytest_collectreport hook"""
+        calls = hookrec.getcalls('pytest_collectreport')
+        return [x for call in calls for x in call.report.result
+                if isinstance(x, pytest.Item)]
 
     def test_collect_protocol_single_function(self, testdir):
         p = testdir.makepyfile("def test_func(): pass")
@@ -386,9 +391,10 @@ class TestSession(object):
             ("pytest_collectstart", "collector.fspath == p"),
             ("pytest_make_collect_report", "collector.fspath == p"),
             ("pytest_pycollect_makeitem", "name == 'test_func'"),
-            ("pytest_collectreport", "report.nodeid.startswith(p.basename)"),
-            ("pytest_collectreport", "report.nodeid == ''")
+            ("pytest_collectreport", "report.result[0].name == 'test_func'"),
         ])
+        # ensure we are reporting the collection of the single test item (#2464)
+        assert [x.name for x in self.get_reported_items(hookrec)] == ['test_func']
 
     def test_collect_protocol_method(self, testdir):
         p = testdir.makepyfile("""
@@ -407,6 +413,8 @@ class TestSession(object):
             assert items[0].name == "test_method"
             newid = items[0].nodeid
             assert newid == normid
+            # ensure we are reporting the collection of the single test item (#2464)
+            assert [x.name for x in self.get_reported_items(hookrec)] == ['test_method']
 
     def test_collect_custom_nodes_multi_id(self, testdir):
         p = testdir.makepyfile("def test_func(): pass")
@@ -436,9 +444,8 @@ class TestSession(object):
                 "collector.__class__.__name__ == 'Module'"),
             ("pytest_pycollect_makeitem", "name == 'test_func'"),
             ("pytest_collectreport", "report.nodeid.startswith(p.basename)"),
-            #("pytest_collectreport",
-            #    "report.fspath == %r" % str(rcol.fspath)),
         ])
+        assert len(self.get_reported_items(hookrec)) == 2
 
     def test_collect_subdir_event_ordering(self, testdir):
         p = testdir.makepyfile("def test_func(): pass")
@@ -495,11 +502,13 @@ class TestSession(object):
                 def test_method(self):
                     pass
         """)
-        arg = p.basename + ("::TestClass::test_method")
+        arg = p.basename + "::TestClass::test_method"
         items, hookrec = testdir.inline_genitems(arg)
         assert len(items) == 1
         item, = items
         assert item.nodeid.endswith("TestClass::()::test_method")
+        # ensure we are reporting the collection of the single test item (#2464)
+        assert [x.name for x in self.get_reported_items(hookrec)] == ['test_method']
 
 class Test_getinitialnodes(object):
     def test_global_file(self, testdir, tmpdir):

testing/test_runner.py

@@ -513,12 +513,12 @@ def test_pytest_no_tests_collected_exit_status(testdir):
             assert 1
     """)
     result = testdir.runpytest()
-    result.stdout.fnmatch_lines('*collected 1 items*')
+    result.stdout.fnmatch_lines('*collected 1 item*')
     result.stdout.fnmatch_lines('*1 passed*')
     assert result.ret == main.EXIT_OK
 
     result = testdir.runpytest('-k nonmatch')
-    result.stdout.fnmatch_lines('*collected 1 items*')
+    result.stdout.fnmatch_lines('*collected 1 item*')
     result.stdout.fnmatch_lines('*1 deselected*')
     assert result.ret == main.EXIT_NOTESTSCOLLECTED
 

testing/test_terminal.py

@@ -204,6 +204,15 @@ class TestTerminal(object):
         assert result.ret == 2
         result.stdout.fnmatch_lines(['*KeyboardInterrupt*'])
 
+    def test_collect_single_item(self, testdir):
+        """Use singular 'item' when reporting a single test item"""
+        testdir.makepyfile("""
+            def test_foobar():
+                pass
+        """)
+        result = testdir.runpytest()
+        result.stdout.fnmatch_lines(['collected 1 item'])
+
 
 class TestCollectonly(object):
     def test_collectonly_basic(self, testdir):