# Copyright 2024 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

import unittest
from unittest import mock

from bad_machine_finder import test_specs


class GetMixinDimensionsUnittest(unittest.TestCase):
  def testBasic(self):
    """Tests behavior along the basic/happy path."""
    mixins = {
      'linux_amd': {
        'swarming': {
          'dimensions': {
            'os': 'linux',
            'gpu': '1002:1234',
          },
        },
      },
      'mac_amd': {
        'swarming': {
          'dimensions': {
            'os': 'mac',
            'gpu': '1002:2345',
          },
        },
      },
    }
    with mock.patch.object(test_specs, '_LoadPylFile', return_value=mixins):
      dimensions = test_specs.GetMixinDimensions('mac_amd')
    self.assertEqual(dimensions.AsDict(), {'os': ['mac'], 'gpu': ['1002:2345']})

  def testSwarmingOrOperator(self):
    """Tests behavior when dimensions contain |."""
    mixins = {
      'mac_amd': {
        'swarming': {
          'dimensions': {
            'os': 'Mac-14.5|Mac-15.0',
            'gpu': '1002:2345',
          },
        },
      },
    }
    with mock.patch.object(test_specs, '_LoadPylFile', return_value=mixins):
      dimensions = test_specs.GetMixinDimensions('mac_amd')
    self.assertEqual(
      dimensions.AsDict(),
      {'os': ['Mac-14.5', 'Mac-15.0'], 'gpu': ['1002:2345']},
    )

  def testNoDimensions(self):
    """Tests behavior when dimensions can not be found."""
    cases = [
      # No matching mixin.
      {},
      # No swarming key.
      {
        'mac_amd': {},
      },
      # No dimensions key.
      {
        'mac_amd': {
          'swarming': {},
        },
      },
      # Empty dimensions.
      {
        'mac_amd': {
          'swarming': {
            'dimensions': {},
          },
        },
      },
    ]
    for c in cases:
      with mock.patch.object(test_specs, '_LoadPylFile', return_value=c):
        with self.assertRaisesRegex(
          RuntimeError,
          'Specified mixin mac_amd does not contain Swarming dimensions',
        ):
          test_specs.GetMixinDimensions('mac_amd')