Update flask form to require fields only when appropriate

atst/forms/request.py

@@ -1,11 +1,27 @@
 from wtforms.fields.html5 import IntegerField
 from wtforms.fields import RadioField, TextAreaField, SelectField
+from wtforms.validators import Optional
 from .fields import DateField
 from .forms import ValidatedForm
 
 
 class RequestForm(ValidatedForm):
 
+    def validate(self, *args, **kwargs):
+        if self.jedi_migration.data == 'no':
+            self.rationalization_software_systems.validators.append(Optional())
+            self.technical_support_team.validators.append(Optional())
+            self.organization_providing_assistance.validators.append(Optional())
+            self.engineering_assessment.validators.append(Optional())
+            self.data_transfers.validators.append(Optional())
+            self.expected_completion_date.validators.append(Optional())
+        elif self.jedi_migration.data == 'yes':
+            if self.technical_support_team.data == 'no':
+                self.organization_providing_assistance.validators.append(Optional())
+            self.cloud_native.validators.append(Optional())
+
+        return super(RequestForm, self).validate(*args, **kwargs)
+
     # Details of Use: General
     dod_component = SelectField(
         "DoD Component",

tests/forms/test_request.py

@@ -0,0 +1,63 @@
+import pytest
+
+from atst.forms.request import RequestForm
+
+
+class TestRequestForm:
+
+    form_data = {
+        'dod_component': 'us_air_force',
+        'jedi_usage': 'cloud-ify all the things',
+        'num_software_systems': '12',
+        'estimated_monthly_spend': '34',
+        'dollar_value': '42',
+        'number_user_sessions': '6',
+        'average_daily_traffic': '0',
+        'start_date': '12/12/2012',
+    }
+
+    def test_require_cloud_native_when_not_migrating(self):
+        extra_data = { 'jedi_migration': 'no' }
+        request_form = RequestForm(data={ **self.form_data, **extra_data })
+        assert not request_form.validate()
+        assert request_form.errors == { 'cloud_native': ['Not a valid choice'] }
+
+    def test_require_migration_questions_when_migrating(self):
+        extra_data = { 'jedi_migration': 'yes' }
+        request_form = RequestForm(data={ **self.form_data, **extra_data })
+        assert not request_form.validate()
+        assert request_form.errors == {
+            'rationalization_software_systems': ['Not a valid choice'],
+            'technical_support_team': ['Not a valid choice'],
+            'organization_providing_assistance': ['Not a valid choice'],
+            'engineering_assessment': ['Not a valid choice'],
+            'data_transfers': ['Not a valid choice'],
+            'expected_completion_date': ['Not a valid choice']
+        }
+
+    def test_require_organization_when_technical_support_team(self):
+        extra_data = {
+            'jedi_migration': 'yes',
+            'rationalization_software_systems': 'yes',
+            'technical_support_team': 'yes',
+            'engineering_assessment': 'yes',
+            'data_transfers': 'less_than_100gb',
+            'expected_completion_date': 'less_than_1_month'
+        }
+        request_form = RequestForm(data={ **self.form_data, **extra_data })
+        assert not request_form.validate()
+        assert request_form.errors == {
+            'organization_providing_assistance': ['Not a valid choice'],
+        }
+
+    def test_valid_form_data(self):
+        extra_data = {
+            'jedi_migration': 'yes',
+            'rationalization_software_systems': 'yes',
+            'technical_support_team': 'no',
+            'engineering_assessment': 'yes',
+            'data_transfers': 'less_than_100gb',
+            'expected_completion_date': 'less_than_1_month'
+        }
+        request_form = RequestForm(data={ **self.form_data, **extra_data })
+        assert request_form.validate()