Form for application team member table.

Nested form for each member, with child forms for environment roles and
permissions.

tests/forms/test_team.py

@@ -0,0 +1,26 @@
+from wtforms.validators import ValidationError
+import pytest
+
+from atst.domain.permission_sets import PermissionSets
+from atst.forms.team import *
+
+
+def test_permissions_form_permission_sets():
+    form_data = {
+        "perms_env_mgmt": "",
+        "perms_team_mgmt": PermissionSets.EDIT_APPLICATION_TEAM,
+        "perms_del_env": "",
+    }
+    form = PermissionsForm(data=form_data)
+    assert form.validate()
+    assert form.data == [PermissionSets.EDIT_APPLICATION_TEAM]
+
+
+def test_permissions_form_invalid():
+    form_data = {
+        "perms_env_mgmt": "not a real choice",
+        "perms_team_mgmt": PermissionSets.EDIT_APPLICATION_TEAM,
+        "perms_del_env": "",
+    }
+    form = PermissionsForm(data=form_data)
+    assert not form.validate()