Add a configurable name to MypyItem node IDs

src/pytest_mypy.py

@@ -10,6 +10,7 @@
 
 
 mypy_argv = []
+nodeid_name = 'mypy'
 
 
 def pytest_addoption(parser):
@@ -77,7 +78,14 @@ def pytest_collect_file(path, parent):
             parent.config.option.mypy,
             parent.config.option.mypy_ignore_missing_imports,
     ]):
-        return MypyItem(path, parent)
+        item = MypyItem(path, parent)
+        if nodeid_name:
+            item = MypyItem(
+                path,
+                parent,
+                nodeid='::'.join([item.nodeid, nodeid_name]),
+            )
+        return item
     return None
 
 

tests/test_pytest_mypy.py

@@ -145,6 +145,19 @@ def pytest_configure(config):
     assert result.ret == 0
 
 
+def test_api_nodeid_name(testdir, xdist_args):
+    """Ensure that the plugin can be configured in a conftest.py."""
+    nodeid_name = 'UnmistakableNodeIDName'
+    testdir.makepyfile(conftest='''
+        def pytest_configure(config):
+            plugin = config.pluginmanager.getplugin('mypy')
+            plugin.nodeid_name = '{}'
+    '''.format(nodeid_name))
+    result = testdir.runpytest_subprocess('--mypy', '--verbose', *xdist_args)
+    result.stdout.fnmatch_lines(['*conftest.py::' + nodeid_name + '*'])
+    assert result.ret == 0
+
+
 def test_pytest_collection_modifyitems(testdir, xdist_args):
     testdir.makepyfile(conftest='''
         def pytest_collection_modifyitems(session, config, items):