Drop run and rpc_module_paths from streaming tests

tests/test_streaming.py

@@ -50,14 +50,24 @@ async def context_stream(ctx, sequence):
     assert cs.cancelled_caught
 
 
-async def stream_from_single_subactor(stream_func):
+async def stream_from_single_subactor(
+    arb_addr,
+    start_method,
+    stream_func,
+):
     """Verify we can spawn a daemon actor and retrieve streamed data.
     """
+    # only one per host address, spawns an actor if None
+
+    async with tractor.open_nursery(
+        arbiter_addr=arb_addr,
+        start_method=start_method,
+    ) as nursery:
+
         async with tractor.find_actor('streamerd') as portals:
 
             if not portals:
-            # only one per host address, spawns an actor if None
-            async with tractor.open_nursery() as nursery:
+
                 # no brokerd actor found
                 portal = await nursery.start_actor(
                     'streamerd',
@@ -101,13 +111,13 @@ async def stream_from_single_subactor(stream_func):
 def test_stream_from_single_subactor(arb_addr, start_method, stream_func):
     """Verify streaming from a spawned async generator.
     """
-    tractor.run(
+    trio.run(
         partial(
             stream_from_single_subactor,
+            arb_addr,
+            start_method,
             stream_func=stream_func,
         ),
-        arbiter_addr=arb_addr,
-        start_method=start_method,
     )
 
 
@@ -208,7 +218,8 @@ async def a_quadruple_example():
         return result_stream
 
 
-async def cancel_after(wait):
+async def cancel_after(wait, arb_addr):
+    async with tractor.open_root_actor(arbiter_addr=arb_addr):
         with trio.move_on_after(wait):
             return await a_quadruple_example()
 
@@ -222,7 +233,7 @@ def time_quad_ex(arb_addr, ci_env, spawn_backend):
 
     timeout = 7 if platform.system() in ('Windows', 'Darwin') else 4
     start = time.time()
-    results = tractor.run(cancel_after, timeout, arbiter_addr=arb_addr)
+    results = trio.run(cancel_after, timeout, arb_addr)
     diff = time.time() - start
     assert results
     return results, diff
@@ -249,7 +260,7 @@ def test_not_fast_enough_quad(
     """
     results, diff = time_quad_ex
     delay = max(diff - cancel_delay, 0)
-    results = tractor.run(cancel_after, delay, arbiter_addr=arb_addr)
+    results = trio.run(cancel_after, delay, arb_addr)
     system = platform.system()
     if system in ('Windows', 'Darwin') and results is not None:
         # In CI envoirments it seems later runs are quicker then the first