diff --git a/tests/functional/gtcs/test_ref_integ_inactive_fk_index.py b/tests/functional/gtcs/test_ref_integ_inactive_fk_index.py
index 62fb3bcb..652e6186 100644
--- a/tests/functional/gtcs/test_ref_integ_inactive_fk_index.py
+++ b/tests/functional/gtcs/test_ref_integ_inactive_fk_index.py
@@ -8,15 +8,15 @@ DESCRIPTION:
   https://github.com/FirebirdSQL/fbtcs/blob/master/GTCS/tests/REF_INT.8.ISQL.script
 FBTEST:      functional.gtcs.ref_integ_inactive_fk_index
 """
-
+import os
 import pytest
 from firebird.qa import *
 
-db_1 = db_factory()
+db = db_factory()
 
-act_1 = python_act('db_1')
+act = python_act('db')
 
-expected_stderr = """
+test_expected_stderr = """
     Statement failed, SQLSTATE = 27000
     unsuccessful metadata update
     -ALTER INDEX REF_KEY failed
@@ -26,43 +26,32 @@ expected_stderr = """
     Statement failed, SQLSTATE = 23000
     violation of FOREIGN KEY constraint "REF_KEY" on table "EMPLOYEE"
     -Foreign key reference target does not exist
-    -Problematic key value is ("DEPT_NO" = '-1')
+    -Problematic key value is ("DEPT_NO" = -1)
 """
 
-expected_stdout = """
+test_expected_stdout = """
     Records affected: 0
 """
 
-@pytest.mark.skip('FIXME: Not IMPLEMENTED')
 @pytest.mark.version('>=3.0')
-def test_1(act_1: Action):
-    pytest.fail("Not IMPLEMENTED")
+def test_1(act: Action):
+    
+    sql_init = (act.files_dir / 'gtcs-ref-integ-init.sql').read_text()
+    sql_addi = '''
+        alter index ref_key inactive; -- should FAIL
+        commit;
 
-# test_script_1
-#---
-#
-#  import os
-#  import sys
-#  import subprocess
-#
-#  os.environ["ISC_USER"] = user_name
-#  os.environ["ISC_PASSWORD"] = user_password
-#
-#  db_conn.close()
-#
-#  with open( os.path.join(context['files_location'],'gtcs-ref-integ.sql'), 'r') as f:
-#      sql_init = f.read()
-#
-#  sql_addi='''
-#      alter index ref_key inactive; -- should FAIL
-#      commit;
-#
-#      insert into employee( emp_no, last_name, dept_no) values (11, 'e11', 1);
-#      insert into employee( emp_no, last_name, dept_no) values (12, 'e12', -1);
-#
-#      set count on;
-#      select * from employee e where e.dept_no < 0;
-#  '''
-#
-#  runProgram('isql', [ dsn], os.linesep.join( (sql_init, sql_addi) ) )
-#---
+        insert into employee( emp_no, last_name, dept_no) values (11, 'e11', 1);
+        insert into employee( emp_no, last_name, dept_no) values (12, 'e12', -1);
+
+        set count on;
+        select * from employee e where e.dept_no < 0;
+    '''
+
+    act.expected_stdout = test_expected_stdout
+    act.expected_stderr = test_expected_stderr
+   
+    act.isql(switches=['-q'], input = os.linesep.join( (sql_init, sql_addi) ) )
+
+    assert (act.clean_stdout == act.clean_expected_stdout and
+            act.clean_stderr == act.clean_expected_stderr)