Create tests (#15)

Created a tests folder which contains pytest and bats tests.
Pytest is used to login and send messages to other accounts.
Bats is used to check the log for debug messages.

This fixes #13.

tests/test_prosody.py

@@ -0,0 +1,119 @@
+import aiosasl
+import aioxmpp
+import aioxmpp.dispatcher
+import asyncio
+import pytest
+
+@pytest.fixture
+def client(client_username, password):
+
+    jid = aioxmpp.JID.fromstr(client_username)
+
+    client = aioxmpp.PresenceManagedClient(
+        jid,
+        aioxmpp.make_security_layer(
+            password,
+            no_verify=True
+        ),
+    )
+    return client
+
+@pytest.fixture
+def client_with_message_dispatcher(client):
+    def message_received(msg):
+        print(msg)
+        print(msg.body)
+        assert msg.body == "Hello World!"
+
+    # obtain an instance of the service
+    message_dispatcher = client.summon(
+    aioxmpp.dispatcher.SimpleMessageDispatcher
+    )
+
+    # register a message callback here
+    message_dispatcher.register_callback(
+        aioxmpp.MessageType.CHAT,
+        None,
+        message_received,
+    )
+    return client
+
+@pytest.mark.asyncio
+@pytest.mark.parametrize("client_username, password", [("admin@localhost", "12345678")])
+async def test_send_message_from_admin_to_user1(client):
+    recipient_jid = aioxmpp.JID.fromstr("user1@localhost")
+    async with client.connected() as stream:
+        msg = aioxmpp.Message(
+            to=recipient_jid,
+            type_=aioxmpp.MessageType.CHAT,
+        )
+        # None is for "default language"
+        msg.body[None] = "Hello World!"
+
+        await client.send(msg)
+
+@pytest.mark.asyncio
+@pytest.mark.parametrize("client_username, password", [("admin@localhost", "12345678")])
+async def test_send_message_from_admin_to_user2(client):
+    recipient_jid = aioxmpp.JID.fromstr("user2@localhost")
+    async with client.connected() as stream:
+        msg = aioxmpp.Message(
+            to=recipient_jid,
+            type_=aioxmpp.MessageType.CHAT,
+        )
+        msg.body[None] = "Hello World!"
+
+        await client.send(msg)
+
+@pytest.mark.asyncio
+@pytest.mark.parametrize("client_username, password", [("user1@localhost", "12345678")])
+async def test_send_message_from_user1_to_user2(client):
+    recipient_jid = aioxmpp.JID.fromstr("user2@localhost")
+    async with client.connected() as stream:
+        msg = aioxmpp.Message(
+            to=recipient_jid,
+            type_=aioxmpp.MessageType.CHAT,
+        )
+        msg.body[None] = "Hello World!"
+
+        await client.send(msg)
+
+@pytest.mark.asyncio
+@pytest.mark.parametrize("client_username, password", [("user2@localhost", "12345678")])
+async def test_send_message_from_user2_to_user3(client):
+    recipient_jid = aioxmpp.JID.fromstr("user3@localhost")
+    async with client.connected() as stream:
+        msg = aioxmpp.Message(
+            to=recipient_jid,
+            type_=aioxmpp.MessageType.CHAT,
+        )
+        msg.body[None] = "Hello World!"
+
+        await client.send(msg)
+
+@pytest.mark.asyncio
+@pytest.mark.parametrize("client_username, password", [("user2@localhost", "12345678")])
+async def test_send_message_from_user2_to_nonexisting(client):
+    recipient_jid = aioxmpp.JID.fromstr("nonexisting@localhost")
+    async with client.connected() as stream:
+        msg = aioxmpp.Message(
+            to=recipient_jid,
+            type_=aioxmpp.MessageType.CHAT,
+        )
+        msg.body[None] = "Hello World!"
+
+        await client.send(msg)
+
+@pytest.mark.asyncio
+@pytest.mark.parametrize("client_username, password", [("user2@localhost", "wrong password")])
+async def test_can_not_log_in_with_wrong_password(client):
+    with pytest.raises(aiosasl.AuthenticationFailure):
+        recipient_jid = aioxmpp.JID.fromstr("nonexisting@localhost")
+        async with client.connected() as stream:
+            msg = aioxmpp.Message(
+                to=recipient_jid,
+                type_=aioxmpp.MessageType.CHAT,
+            )
+            msg.body[None] = "Hello World!"
+
+            await client.send(msg)