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[2.2.x] Fixed #30870 -- Fixed showing that RunPython operations are irreversible by migrate --plan.

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Thanks Hasan Ramezani for the initial patch and Kyle Dickerson for the
report.

Backport of 06d34aab7c from master.
This commit is contained in:
Mariusz Felisiak 2019-10-14 09:37:45 +02:00
parent d4d37d0900
commit d2f02aa56b
4 changed files with 53 additions and 5 deletions
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22
tests/migrations/test_commands.py
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@ -360,6 +360,28 @@ class MigrateTests(MigrationTestBase):
' Raw SQL operation -> IRREVERSIBLE\n',
out.getvalue()
)
out = io.StringIO()
call_command('migrate', 'migrations', '0005', plan=True, stdout=out, no_color=True)
# Operation is marked as irreversible only in the revert plan.
self.assertEqual(
'Planned operations:\n'
'migrations.0005_fifth\n'
' Raw Python operation\n'
' Raw Python operation\n'
' Raw Python operation -> Feed salamander.\n',
out.getvalue()
)
call_command('migrate', 'migrations', '0005', verbosity=0)
out = io.StringIO()
call_command('migrate', 'migrations', '0004', plan=True, stdout=out, no_color=True)
self.assertEqual(
'Planned operations:\n'
'migrations.0005_fifth\n'
' Raw Python operation -> IRREVERSIBLE\n'
' Raw Python operation -> IRREVERSIBLE\n'
' Raw Python operation\n',
out.getvalue()
)
# Cleanup by unmigrating everything: fake the irreversible, then
# migrate all to zero.
call_command('migrate', 'migrations', '0003', fake=True, verbosity=0)