diff --git a/tests/bugs/gh_7179_test.py b/tests/bugs/gh_7179_test.py
new file mode 100644
index 00000000..0c277939
--- /dev/null
+++ b/tests/bugs/gh_7179_test.py
@@ -0,0 +1,105 @@
+#coding:utf-8
+
+"""
+ID:          issue-7179
+ISSUE:       https://github.com/FirebirdSQL/firebird/issues/7179
+TITLE:       Wrong error message - "string right truncation. expected length NN, actual NN."
+NOTES:
+    [27.02.2023] pzotov
+    Confirmed bug on 5.0.0.488 (date of build: 25-apr-2022).
+    Checked on 5.0.0.959 - all OK.
+"""
+
+import pytest
+from firebird.qa import *
+
+db = db_factory()
+
+act = python_act('db')
+
+expected_stdout = """
+    Statement failed, SQLSTATE = 22001
+    arithmetic exception, numeric overflow, or string truncation
+    -string right truncation
+    -expected length 4, actual 5
+
+    Statement failed, SQLSTATE = 22001
+    arithmetic exception, numeric overflow, or string truncation
+    -string right truncation
+    -expected length 4, actual 5
+
+    Statement failed, SQLSTATE = 22001
+    arithmetic exception, numeric overflow, or string truncation
+    -string right truncation
+    -expected length 4, actual 20
+
+    RESULT_04                       1234
+    RESULT_05                       1234
+    RESULT_06                       1234
+    RESULT_07                       1234
+
+    Statement failed, SQLSTATE = 22001
+    arithmetic exception, numeric overflow, or string truncation
+    -string right truncation
+    -expected length 2, actual 9
+
+    Statement failed, SQLSTATE = 22001
+    arithmetic exception, numeric overflow, or string truncation
+    -string right truncation
+    -expected length 2, actual 9
+
+    Statement failed, SQLSTATE = 22001
+    arithmetic exception, numeric overflow, or string truncation
+    -string right truncation
+    -expected length 4, actual 5
+
+    Statement failed, SQLSTATE = 22001
+    arithmetic exception, numeric overflow, or string truncation
+    -string right truncation
+    -expected length 4, actual 5
+
+    Statement failed, SQLSTATE = 22001
+    arithmetic exception, numeric overflow, or string truncation
+    -string right truncation
+    -expected length 4, actual 6
+
+    Statement failed, SQLSTATE = 22001
+    arithmetic exception, numeric overflow, or string truncation
+    -string right truncation
+    -expected length 4, actual 6
+"""
+
+@pytest.mark.version('>=5.0')
+def test_1(act: Action):
+    test_script = """
+        set list on;
+        select cast(_win1252 '12345' collate win_ptbr as varchar(4) character set win1252) as result_01 from rdb$database;
+
+        select cast(_utf8 '1234ç' as varchar(4) character set win1252) as result_02 from rdb$database;
+
+        select cast(_win1252 '12345678901234567890' as varchar(4) character set utf8) as result_03 from rdb$database;
+
+        select cast(_utf8 '1234 ' as varchar(4) character set win1252) as result_04 from rdb$database;
+
+        select cast(_utf8 '1234                ' as varchar(4) character set win1252) as result_05 from rdb$database;
+
+        select cast(_win1252 '1234 ' as varchar(4) character set utf8) as result_06 from rdb$database;
+
+        select cast(_win1252 '1234                ' as varchar(4) character set utf8) as result_07 from rdb$database;
+
+        select cast(_none '12345678ç' as varchar(2) character set utf8) as result_08 from rdb$database;
+
+        select cast(_none '1234567ç8' as varchar(2) character set utf8) as result_09 from rdb$database;
+
+        select cast(_none '1234ç' as varchar(4) character set utf8) as result_10 from rdb$database;
+
+        select cast(_none '1234ç' as char(4) character set utf8) as result_11 from rdb$database;
+
+        select cast(_none '1234ç' as varchar(4) character set win1252) as result_12 from rdb$database;
+
+        select cast(_none '1234ç' as char(4) character set win1252) as result_13 from rdb$database;
+    """
+
+    act.expected_stdout = expected_stdout
+    act.isql(switches=['-q'], charset = 'utf8', input = test_script, combine_output = True)
+    assert act.clean_stdout == act.clean_expected_stdout