Move interop tests out of tests

It is moved to the top level package `tests_interop`, to avoid circular
dependency, with the dependency moved to `tox`.

.travis.yml

@@ -18,7 +18,7 @@ matrix:
         - export GOPATH=$HOME/go
         - export GOROOT=/usr/local/go
         - export PATH=$GOROOT/bin:$GOPATH/bin:$PATH
-        - ./tests/interop/go_pkgs/install_interop_go_pkgs.sh
+        - ./tests_interop/go_pkgs/install_interop_go_pkgs.sh
 
 install:
   - pip install --upgrade pip

Makefile

@@ -1,4 +1,4 @@
-FILES_TO_LINT = libp2p tests examples setup.py
+FILES_TO_LINT = libp2p tests tests_interop examples setup.py
 PB = libp2p/crypto/pb/crypto.proto libp2p/pubsub/pb/rpc.proto libp2p/security/insecure/pb/plaintext.proto libp2p/security/secio/pb/spipe.proto
 PY = $(PB:.proto=_pb2.py)
 PYI = $(PB:.proto=_pb2.pyi)

setup.py

@@ -9,8 +9,6 @@ extras_require = {
         "pytest>=4.6.3,<5.0.0",
         "pytest-asyncio>=0.10.0,<1.0.0",
         "pexpect>=4.6,<5",
-        # FIXME: Master branch. Use PyPI instead after it is released.
-        "p2pclient @ git+https://git@github.com/mhchia/py-libp2p-daemon-bindings@628266f",
     ],
     "lint": [
         "mypy>=0.701,<1.0",

tests_interop/conftest.py

@@ -7,13 +7,46 @@ import pexpect
 import pytest
 
 from libp2p.io.abc import ReadWriteCloser
-from tests.factories import FloodsubFactory, GossipsubFactory, PubsubFactory
+from tests.configs import LISTEN_MADDR
+from tests.factories import (
+    FloodsubFactory,
+    GossipsubFactory,
+    HostFactory,
+    PubsubFactory,
+)
 from tests.pubsub.configs import GOSSIPSUB_PARAMS
 
 from .daemon import Daemon, make_p2pd
 from .utils import connect
 
 
+@pytest.fixture
+def is_host_secure():
+    return False
+
+
+@pytest.fixture
+def num_hosts():
+    return 3
+
+
+@pytest.fixture
+async def hosts(num_hosts, is_host_secure):
+    _hosts = HostFactory.create_batch(num_hosts, is_secure=is_host_secure)
+    await asyncio.gather(
+        *[_host.get_network().listen(LISTEN_MADDR) for _host in _hosts]
+    )
+    try:
+        yield _hosts
+    finally:
+        # TODO: It's possible that `close` raises exceptions currently,
+        #   due to the connection reset things. Though we don't care much about that when
+        #   cleaning up the tasks, it is probably better to handle the exceptions properly.
+        await asyncio.gather(
+            *[_host.close() for _host in _hosts], return_exceptions=True
+        )
+
+
 @pytest.fixture
 def proc_factory():
     procs = []

tox.ini

@@ -27,11 +27,10 @@ skip_glob=
 
 [testenv]
 deps =
-passenv = CI TRAVIS TRAVIS_* GOPATH
+passenv = CI TRAVIS TRAVIS_*
 extras = test
 commands =
-    test: py.test --ignore=tests/interop
-    interop: py.test tests/interop
+    test: py.test tests/ -v
 basepython =
     py37: python3.7
 
@@ -40,6 +39,15 @@ basepython = python3
 extras = dev
 commands =
     mypy -p libp2p -p examples --config-file {toxinidir}/mypy.ini
-    black --check libp2p tests examples setup.py
-    isort --recursive --check-only libp2p tests examples setup.py
-    flake8 libp2p tests examples setup.py
+    black --check libp2p tests tests_interop examples setup.py
+    isort --recursive --check-only libp2p tests tests_interop examples setup.py
+    flake8 libp2p tests tests_interop examples setup.py
+
+[testenv:py37-interop]
+deps = p2pclient
+passenv = CI TRAVIS TRAVIS_* GOPATH
+extras = test
+commands =
+    test: py.test tests_interop/ -v
+basepython =
+    py37: python3.7