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import json

from superset.migrations.versions.fb13d49b72f9_better_filters import (
    Slice, upgrade_slice,
)
from .base_tests import SupersetTestCase


class MigrationTestCase(SupersetTestCase):

    def test_upgrade_slice(self):
        slc = Slice(
            slice_name='FOO',
            viz_type='filter_box',
            params=json.dumps(dict(
                metric='foo',
                groupby=['bar'],
            )),
        )
        upgrade_slice(slc)
        params = json.loads(slc.params)
        self.assertNotIn('metric', params)
        self.assertIn('filter_configs', params)

        cfg = params['filter_configs'][0]
        self.assertEquals(cfg.get('metric'), 'foo')