Allow ignoring sqlmigrate errors.

tests/unit/test_linter.py

@@ -2,7 +2,9 @@ from __future__ import annotations
 
 import tempfile
 import unittest
+from unittest.mock import patch
 
+from django.db import ProgrammingError
 from django.db.migrations import Migration
 
 from django_migration_linter import MigrationLinter
@@ -109,6 +111,28 @@ class LinterFunctionsTestCase(unittest.TestCase):
         with self.assertRaises(Exception):
             MigrationLinter.read_migrations_list(file_path)
 
+    @patch(
+        "django_migration_linter.migration_linter.call_command",
+        side_effect=ProgrammingError,
+    )
+    def test_raise_exception_on_sqlmigrate_error(self, call_command_mock):
+        linter = MigrationLinter(
+            exclude_migration_tests=[], database="mysql", ignore_sqlmigrate_errors=False
+        )
+        with self.assertRaises(ProgrammingError):
+            linter.get_sql("app_correct", "0002_foo")
+
+    @patch(
+        "django_migration_linter.migration_linter.call_command",
+        side_effect=ProgrammingError,
+    )
+    def test_ignore_exception_on_sqlmigrate_error(self, call_command_mock):
+        linter = MigrationLinter(
+            exclude_migration_tests=[], database="mysql", ignore_sqlmigrate_errors=True
+        )
+        sql_result = linter.get_sql("app_correct", "0002_foo")
+        self.assertEqual([], sql_result)
+
     def test_read_migrations_no_file(self):
         migration_list = MigrationLinter.read_migrations_list(None)
         self.assertIsNone(migration_list)