From e5cea49673c2f528b6fb94d8f42c2f4b64a36f4c Mon Sep 17 00:00:00 2001
From: Oliver Zander <zander@cosmocode.de>
Date: Mon, 18 Aug 2025 16:42:09 +0200
Subject: [PATCH] added basic tests for extern view

---
 input/tests/__init__.py |   3 ++
 input/tests/views.py    |  40 ++++++++++++++
 input/utils/__init__.py |   0
 input/utils/testing.py  | 114 ++++++++++++++++++++++++++++++++++++++++
 4 files changed, 157 insertions(+)
 create mode 100644 input/tests/views.py
 create mode 100644 input/utils/__init__.py
 create mode 100644 input/utils/testing.py

diff --git a/input/tests/__init__.py b/input/tests/__init__.py
index 14a304a..cb7cb1b 100755
--- a/input/tests/__init__.py
+++ b/input/tests/__init__.py
@@ -8,6 +8,9 @@ from django.http import HttpResponse
 from input.forms import LibraryForm
 from input.models import HonoraryCertificate, Project, Account, Literature
 
+from .views import ViewTestCase
+
+
 class TestWithoutLogin(TestCase):
 
     def setUp(self):
diff --git a/input/tests/views.py b/input/tests/views.py
new file mode 100644
index 0000000..89835f5
--- /dev/null
+++ b/input/tests/views.py
@@ -0,0 +1,40 @@
+from django.test import TestCase
+
+from input.utils.testing import request
+
+
+class ViewTestCase(TestCase):
+
+    def test_index(self):
+        request(self, 'index')
+
+    def test_extern(self):
+        request(self, 'extern')
+
+    def test_extern_travel(self):
+        data = {
+            'extern_view-current_step': 0,
+            '0-realname': 'Test',
+            '0-email': 'test@example.com',
+            '0-choice': 'TRAV',
+            '0-check': True,
+        }
+
+        response = request(self, 'extern', data=data)
+
+        self.assertContains(response, 'Transportmittel')
+
+        data = {
+            'extern_view-current_step': 1,
+            'project_name': 'Test',
+            'transport': 'BAHN',
+            'travelcost': 10,
+            'checkin': '2025-01-01',
+            'checkout': '2025-01-02',
+            'hotel': 'TRUE',
+            'notes': '',
+        }
+
+        response = request(self, 'extern', data=data)
+
+        self.assertContains(response, 'Deine Anfrage wurde gesendet.')
diff --git a/input/utils/__init__.py b/input/utils/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/input/utils/testing.py b/input/utils/testing.py
new file mode 100644
index 0000000..2481df7
--- /dev/null
+++ b/input/utils/testing.py
@@ -0,0 +1,114 @@
+from typing import Any, Iterable, Mapping, Union, Tuple, Protocol
+
+from django.http import HttpRequest, HttpResponse
+from django.http.response import HttpResponseRedirectBase, StreamingHttpResponse
+from django.shortcuts import resolve_url
+from django.template import Context
+from django.template.response import TemplateResponse
+from django.test import Client, SimpleTestCase
+from django.urls import reverse, ResolverMatch
+from django.utils.http import urlencode
+
+FormData = dict
+JSONDict = dict
+JSONList = list
+RequestData = Union[FormData, JSONDict, JSONList]
+QueryParams = Union[Mapping[str, Any], Iterable[Tuple[str, Any]]]
+
+
+class TestClientResponse(Protocol):
+    client: Client
+    request: HttpRequest
+    templates: list
+    context: Context
+    resolver_match: ResolverMatch
+
+    def json(self) -> Union[JSONList, JSONDict]: ...
+
+
+Response = Union[
+    HttpResponse,
+    HttpResponseRedirectBase,
+    StreamingHttpResponse,
+    TemplateResponse,
+    TestClientResponse,
+]
+
+
+class ObjectWithGetAbsoluteURLMethod(Protocol):
+
+    def get_absolute_url(self) -> str: ...
+
+
+URL = Union[str, ObjectWithGetAbsoluteURLMethod]
+URLArgs = Union[tuple, list]
+URLKwargs = dict
+
+
+def get_url(url: URL, args: URLArgs = None, kwargs: URLKwargs = None) -> str:
+    """
+    Helper to reverse the given url name.
+    """
+
+    if args or kwargs:
+        return reverse(url, args=args, kwargs=kwargs)
+
+    return resolve_url(url)
+
+
+def get_handler(test_case: SimpleTestCase, method: str = None, data=None):
+    if data:
+        method = str.lower(method or 'POST')
+    else:
+        method = str.lower(method or 'GET')
+
+    return getattr(test_case.client, method)
+
+
+def request(
+    test_case: SimpleTestCase,
+    url: URL,
+    status_code: int = None,
+    expected_url: URL = None,
+    args: URLArgs = None,
+    kwargs: URLKwargs = None,
+    headers: dict = None,
+    msg: str = None,
+    query_params: QueryParams = None,
+    method: str = None,
+    data: RequestData = None,
+    **options,
+) -> Response:
+    """
+    A helper to make a request with the test case's http client.
+
+    The given args and kwargs are used to reverse the url
+    but not the expected url. When expected url needs
+    args/kwargs pass an absolute url instead.
+
+    All additional kwargs are passed as post parameters.
+    When posting without parameters just pass post=True.
+    """
+
+    data = data or options or None
+    handler = get_handler(test_case, method, data)
+    url = get_url(url, args, kwargs)
+
+    if query_params:
+        url = f'{url}?%s' % urlencode(query_params, doseq=True)
+
+    headers = headers or {}
+    status_code = status_code or 200
+    response = handler(url, data=data, **headers)
+    msg = msg or getattr(response, 'content', None)
+
+    if expected_url:
+        test_case.assertRedirects(
+            response=response,
+            expected_url=get_url(expected_url),
+            target_status_code=status_code,
+        )
+    else:
+        test_case.assertEqual(response.status_code, status_code, msg=msg)
+
+    return response