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[AIRFLOW-5793] add test to detect multiple alembic revision heads #6449

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Merged
Fokko merged 1 commit into from
Oct 28, 2019
Merged

[AIRFLOW-5793] add test to detect multiple alembic revision heads #6449

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11 changes: 11 additions & 0 deletions tests/utils/test_db.py
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Original file line number Diff line number Diff line change
Expand Up @@ -20,7 +20,9 @@
import unittest

from alembic.autogenerate import compare_metadata
from alembic.config import Config
from alembic.migration import MigrationContext
from alembic.script import ScriptDirectory
from sqlalchemy import MetaData

from airflow.models import Base as airflow_base
Expand Down Expand Up @@ -97,3 +99,12 @@ def test_database_schema_and_sqlalchemy_model_are_in_sync(self):
diff,
'Database schema and SQLAlchemy model are not in sync: ' + str(diff)
)

def test_only_single_head_revision_in_migrations(self):
config = Config()
config.set_main_option("script_location", "airflow:migrations")
script = ScriptDirectory.from_config(config)

# This will raise if there are multiple heads
# To resolve, use the command `alembic merge`
script.get_current_head()