Fixes #1563 -- Use iexact matching when querying users (#1973)

* Fixes #1563 -- Use iexact mathing when querying users
* Add .pytest_cache to gitignore
* Make identifier non-optional

.gitignore

@@ -19,6 +19,7 @@ wheels/
 *.pyc
 .cache
 __pycache__/
+.pytest_cache
 
 # Coverage
 .coverage

cadasta/accounts/manager.py

@@ -4,9 +4,9 @@
 
 
 class UserManager(DjangoUserManager):
-    def get_from_username_or_email_or_phone(self, identifier=None):
-        users = self.filter(Q(username=identifier) | Q(
-            email=identifier) | Q(phone=identifier))
+    def get_from_username_or_email_or_phone(self, identifier):
+        users = self.filter(Q(username__iexact=identifier) | Q(
+            email__iexact=identifier) | Q(phone=identifier))
         users_count = len(users)
 
         if users_count == 1:

cadasta/accounts/tests/test_manager.py

@@ -16,13 +16,28 @@ def test_get_from_username(self):
 
         assert found == user
 
+    def test_get_from_username_non_case_sensitive(self):
+        user = UserFactory.create(username='TestUser')
+        found = User.objects.get_from_username_or_email_or_phone(
+            identifier='testuser'
+        )
+
+        assert found == user
+
     def test_get_from_email(self):
         user = UserFactory.create()
         found = User.objects.get_from_username_or_email_or_phone(
             identifier=user.email)
 
         assert found == user
 
+    def test_get_from_email_non_case_sensitive(self):
+        user = UserFactory.create(email='[email protected]')
+        found = User.objects.get_from_username_or_email_or_phone(
+            identifier='[email protected]')
+
+        assert found == user
+
     def test_get_from_phone(self):
         user = UserFactory.create()
         found = User.objects.get_from_username_or_email_or_phone(