Add initial unit tests for auth

Author: fabaff

tests/__init__.py

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+"""Test for the Elmax Cloud service client."""

tests/test_authentication.py

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+"""Test the authentication process."""
+import pytest
+from pytest_httpx import HTTPXMock
+
+from elmax import Elmax, exceptions
+
+RESPONSE_AUTHENTICATION_VALID = {
+    "token": "JWT 123456.123456",
+    "user": {"_id": "1234567", "email": "user@elmax-cloud.test", "role": "user"},
+}
+
+RESPONSE_AUTHENTICATION_INVALID = {
+    "user": {"_id": "1234567", "email": "user@elmax-cloud.test", "role": "user"},
+}
+
+@pytest.mark.asyncio
+async def test_authentication_valid(httpx_mock: HTTPXMock):
+    """Test a valid authentication process."""
+    httpx_mock.add_response(json=RESPONSE_AUTHENTICATION_VALID)
+
+    client = Elmax(username="username", password="password")
+    await client.connect()
+
+    assert client.is_authenticated is True
+
+
+@pytest.mark.asyncio
+async def test_authentication_not_json(httpx_mock: HTTPXMock):
+    """Test if invalid response is handled correctly."""
+    httpx_mock.add_response(json="This is my UTF-8 content")
+
+    with pytest.raises(exceptions.ElmaxConnectionError) as execinfo:
+        client = Elmax(username="username", password="password")
+        await client.connect()
+    
+    assert execinfo.value.args[0] == 'Credentials are not valid'
+    assert client.is_authenticated is False
+
+
+@pytest.mark.asyncio
+async def test_authentication_incomplete(httpx_mock: HTTPXMock):
+    """Test autnetication with an incomplete response."""
+    httpx_mock.add_response(json=RESPONSE_AUTHENTICATION_INVALID)
+
+    with pytest.raises(exceptions.ElmaxConnectionError) as execinfo:
+        client = Elmax(username="username", password="password")
+        await client.connect()
+    
+    assert execinfo.value.args[0] == 'Credentials are not valid'
+    assert client.is_authenticated is False