Move DD code into its own directory (#6)

reference/tests/opentracer/conftest.py

@@ -0,0 +1,61 @@
+"""
+pytest local plugin used to automatically make the following fixtures
+available for all tests in this directory
+
+https://docs.pytest.org/en/latest/writing_plugins.html#testing-plugins
+"""
+import pytest
+
+from ddtrace.opentracer import Tracer, set_global_tracer
+
+from tests.test_tracer import get_dummy_tracer
+
+
+@pytest.fixture()
+def ot_tracer_factory():
+    """Fixture which returns an opentracer ready to use for testing."""
+
+    def make_ot_tracer(
+        service_name='my_svc', config=None, scope_manager=None, context_provider=None
+    ):
+        config = config or {}
+        tracer = Tracer(
+            service_name=service_name, config=config, scope_manager=scope_manager
+        )
+
+        # similar to how we test the ddtracer, use a dummy tracer
+        dd_tracer = get_dummy_tracer()
+        if context_provider:
+            dd_tracer.configure(context_provider=context_provider)
+
+        # attach the dummy tracer to the opentracer
+        tracer._dd_tracer = dd_tracer
+        return tracer
+
+    return make_ot_tracer
+
+
+@pytest.fixture()
+def ot_tracer(ot_tracer_factory):
+    """Fixture for a default opentracer."""
+    return ot_tracer_factory()
+
+
+@pytest.fixture()
+def global_tracer(ot_tracer):
+    """A function similar to one OpenTracing users would write to initialize
+    their OpenTracing tracer.
+    """
+    set_global_tracer(ot_tracer)
+
+    return ot_tracer
+
+
+@pytest.fixture()
+def writer(ot_tracer):
+    return ot_tracer._dd_tracer.writer
+
+
+@pytest.fixture()
+def dd_tracer(ot_tracer):
+    return ot_tracer._dd_tracer