3 files changed, 51 insertions, 1 deletions
diff --git a/tests/migrations/test_commands.py b/tests/migrations/test_commands.py
index 7ea8267247..a3e1efc924 100644
--- a/tests/migrations/test_commands.py
+++ b/tests/migrations/test_commands.py
@@ -1021,12 +1021,52 @@ class MigrateTests(MigrationTestBase):
     @override_settings(
         MIGRATION_MODULES={"migrations": "migrations.test_migrations_no_operations"}
     )
-    def test_migrations_no_operations(self):
+    def test_sqlmigrate_no_operations(self):
         err = io.StringIO()
         call_command("sqlmigrate", "migrations", "0001_initial", stderr=err)
         self.assertEqual(err.getvalue(), "No operations found.\n")
 
     @override_settings(
+        MIGRATION_MODULES={"migrations": "migrations.test_migrations_noop"}
+    )
+    def test_sqlmigrate_noop(self):
+        out = io.StringIO()
+        call_command("sqlmigrate", "migrations", "0001", stdout=out)
+        lines = out.getvalue().splitlines()
+
+        if connection.features.can_rollback_ddl:
+            lines = lines[1:-1]
+        self.assertEqual(
+            lines,
+            [
+                "--",
+                "-- Raw SQL operation",
+                "--",
+                "-- (no-op)",
+            ],
+        )
+
+    @override_settings(
+        MIGRATION_MODULES={"migrations": "migrations.test_migrations_manual_porting"}
+    )
+    def test_sqlmigrate_unrepresentable(self):
+        out = io.StringIO()
+        call_command("sqlmigrate", "migrations", "0002", stdout=out)
+        lines = out.getvalue().splitlines()
+
+        if connection.features.can_rollback_ddl:
+            lines = lines[1:-1]
+        self.assertEqual(
+            lines,
+            [
+                "--",
+                "-- Raw Python operation",
+                "--",
+                "-- THIS OPERATION CANNOT BE WRITTEN AS SQL",
+            ],
+        )
+
+    @override_settings(
         INSTALLED_APPS=[
             "migrations.migrations_test_apps.migrated_app",
             "migrations.migrations_test_apps.migrated_unapplied_app",
diff --git a/tests/migrations/test_migrations_noop/0001_initial.py b/tests/migrations/test_migrations_noop/0001_initial.py
new file mode 100644
index 0000000000..f06ff893ad
--- /dev/null
+++ b/tests/migrations/test_migrations_noop/0001_initial.py
@@ -0,0 +1,10 @@
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    operations = [
+        migrations.RunSQL(sql="", reverse_sql=""),
+    ]
diff --git a/tests/migrations/test_migrations_noop/__init__.py b/tests/migrations/test_migrations_noop/__init__.py
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/tests/migrations/test_migrations_noop/__init__.py