add python class RpcUnixSocket (does not completely work yet)

deltachat-rpc-client/tests/test_rpc_unix.py

@@ -0,0 +1,37 @@
+from os import environ
+import platform  # noqa
+import signal
+import subprocess
+from sys import stderr
+from time import sleep
+
+import pytest
+
+from deltachat_rpc_client import DeltaChat, RpcUnixSocket
+
+
+@pytest.mark.skipif("platform.system() == 'Windows'")
+def test_rpc_unix(tmp_path):
+    socket_file = "/tmp/chatmail.sock" # path needs to be relative or short
+
+    path = environ.get("PATH")
+    assert path is not None
+
+    popen = subprocess.Popen(
+        f"deltachat-rpc-server --unix {socket_file}",
+        shell=True,
+        env=dict(
+            DC_ACCOUNTS_PATH=f"{tmp_path}/accounts/test",
+            rust_log="info",
+            PATH=path
+        )
+    )
+
+    sleep(1) # wait until socket exists # TODO this should not be needed
+
+    rpc = RpcUnixSocket(socket_path=socket_file)
+    with rpc:
+        dc = DeltaChat(rpc)
+        assert dc.rpc.get_system_info()["deltachat_core_version"] is not None
+    popen.send_signal(signal.SIGINT)
+    popen.wait()