File dont-require-resolv-tests.patch of Package python-email-validator

Index: python-email-validator-2.0.0/email_validator/deliverability.py
===================================================================
--- python-email-validator-2.0.0.orig/email_validator/deliverability.py
+++ python-email-validator-2.0.0/email_validator/deliverability.py
@@ -6,11 +6,11 @@ import dns.resolver
 import dns.exception
 
 
-def caching_resolver(*, timeout: Optional[int] = None, cache=None):
+def caching_resolver(*, timeout: Optional[int] = None, cache=None, resolv=None):
     if timeout is None:
         from . import DEFAULT_TIMEOUT
         timeout = DEFAULT_TIMEOUT
-    resolver = dns.resolver.Resolver()
+    resolver = dns.resolver.Resolver(filename=resolv or '/etc/resolv.conf')
     resolver.cache = cache or dns.resolver.LRUCache()  # type: ignore
     resolver.lifetime = timeout  # type: ignore # timeout, in seconds
     return resolver
Index: python-email-validator-2.0.0/tests/mocked_dns_response.py
===================================================================
--- python-email-validator-2.0.0.orig/tests/mocked_dns_response.py
+++ python-email-validator-2.0.0/tests/mocked_dns_response.py
@@ -1,5 +1,6 @@
 import dns.resolver
 import json
+import os
 import os.path
 import pytest
 
@@ -32,7 +33,8 @@ class MockedDnsResponseData:
 
         # Return a new dns.resolver.Resolver configured for caching
         # using the singleton instance.
-        return caching_resolver(cache=MockedDnsResponseData.INSTANCE)
+        return caching_resolver(cache=MockedDnsResponseData.INSTANCE,
+                                resolv=os.environ.get('RESOLV_FILE'))
 
     def __init__(self):
         self.data = {}
Index: python-email-validator-2.0.0/tests/test_deliverability.py
===================================================================
--- python-email-validator-2.0.0.orig/tests/test_deliverability.py
+++ python-email-validator-2.0.0/tests/test_deliverability.py
@@ -1,5 +1,6 @@
 import pytest
 import re
+import os
 
 from email_validator import EmailUndeliverableError, \
                             validate_email, caching_resolver
@@ -73,7 +74,7 @@ def test_caching_dns_resolver():
             self.cache[key] = value
 
     cache = TestCache()
-    resolver = caching_resolver(timeout=1, cache=cache)
+    resolver = caching_resolver(timeout=1, cache=cache, resolv=os.environ.get('RESOLV_FILE'))
     validate_email("test@gmail.com", dns_resolver=resolver)
     assert len(cache.cache) == 1