chore: form handler tests

radiofeed/tests/test_form_handler.py

@@ -0,0 +1,56 @@
+from django import forms
+from django.core import validators
+
+from radiofeed.form_handler import handle_form
+
+
+class MyForm(forms.Form):
+    value = forms.CharField(validators=[validators.MinLengthValidator(3)])
+
+    def __init__(self, *args, instance=None, **kwargs):
+        self.instance = instance
+        super().__init__(*args, **kwargs)
+
+
+class TestHandleForm:
+    def test_get(self, rf):
+        req = rf.get("/")
+        result = handle_form(req, MyForm)
+        assert not result
+        assert result.form
+        assert result.processed is False
+        assert result.success is False
+
+    def test_get_with_kwargs(self, rf):
+        req = rf.get("/")
+        result = handle_form(req, MyForm, instance="something")
+        assert not result
+        assert result.form
+        assert result.form.instance == "something"
+        assert result.processed is False
+        assert result.success is False
+
+    def test_post_invalid(self, rf):
+        req = rf.post("/", {"value": "a"})
+        result = handle_form(req, MyForm)
+        assert not result
+        assert result.form
+        assert result.processed is True
+        assert result.success is False
+
+    def test_post_valid(self, rf):
+        req = rf.post("/", {"value": "abc"})
+        result = handle_form(req, MyForm)
+        assert result
+        assert result.form
+        assert result.processed is True
+        assert result.success is True
+
+    def test_post_valid_with_kwargs(self, rf):
+        req = rf.post("/", {"value": "abc"})
+        result = handle_form(req, MyForm, instance="something")
+        assert result
+        assert result.form
+        assert result.form.instance == "something"
+        assert result.processed is True
+        assert result.success is True