Fix the unit test connection

Author: zeroSteiner

.github/workflows/test.yml

@@ -12,6 +12,7 @@ on:
   push:
     branches:
       - master
+      - testing
 
 jobs:
   test:

test/integration/test_bind.rb

@@ -1,3 +1,4 @@
+require 'resolv'
 require_relative '../test_helper'
 
 class TestBindIntegration < LDAPIntegrationTestCase
@@ -50,7 +51,7 @@ def test_bind_tls_with_cafile
   def test_bind_tls_with_bad_hostname_no_verify_hostname_no_ca_passes
     omit_unless TLS_OPTS.key?(:verify_hostname)
 
-    @ldap.host = '127.0.0.1'
+    @ldap.host = Resolv.getaddress(INTEGRATION_HOSTNAME)
     @ldap.encryption(
       method:      :start_tls,
       tls_options: { verify_mode: OpenSSL::SSL::VERIFY_PEER,
@@ -64,7 +65,7 @@ def test_bind_tls_with_bad_hostname_no_verify_hostname_no_ca_passes
   def test_bind_tls_with_bad_hostname_no_verify_hostname_no_ca_opt_merge_passes
     omit_unless TLS_OPTS.key?(:verify_hostname)
 
-    @ldap.host = '127.0.0.1'
+    @ldap.host = Resolv.getaddress(INTEGRATION_HOSTNAME)
     @ldap.encryption(
       method:      :start_tls,
       tls_options: TLS_OPTS.merge(verify_mode: OpenSSL::SSL::VERIFY_PEER,