fvdl_target_test.py

#!/usr/bin/env python3

# Copyright 2021 The Chromium Authors. All rights reserved.

# Use of this source code is governed by a BSD-style license that can be

# found in the LICENSE file.

"""Tests different flags to see if they are being used correctly"""

import boot_data

import common

import os

import unittest

import unittest.mock as mock

from argparse import Namespace

from fvdl_target import FvdlTarget, _SSH_KEY_DIR

class TestBuildCommandFvdlTarget(unittest.TestCase):

  def setUp(self):

    self.args = Namespace(out_dir='outdir',

                          system_log_file=None,

                          target_cpu='x64',

                          require_kvm=True,

                          enable_graphics=False,

                          hardware_gpu=False,

                          with_network=False,

                          ram_size_mb=8192)

  def testBasicEmuCommand(self):

    with FvdlTarget.CreateFromArgs(self.args) as target:

      target.Shutdown = mock.MagicMock()

      common.EnsurePathExists = mock.MagicMock(return_value='image')

      with mock.patch.object(boot_data, 'ProvisionSSH') as provision_mock:

        build_command = target._BuildCommand()

        self.assertIn(target._FVDL_PATH, build_command)

        self.assertIn('--sdk', build_command)

        self.assertIn('start', build_command)

        self.assertNotIn('--noacceleration', target._BuildCommand())

        self.assertIn('--headless', target._BuildCommand())

        self.assertNotIn('--host-gpu', target._BuildCommand())

        self.assertNotIn('-N', target._BuildCommand())

        self.assertIn('--device-proto', target._BuildCommand())

        self.assertTrue(os.path.exists(target._device_proto_file.name))

        correct_ram_amount = False

        with open(target._device_proto_file.name) as file:

          for line in file:

            if line.strip() == 'ram:  8192':

              correct_ram_amount = True

              break

        self.assertTrue(correct_ram_amount)

  def testBuildCommandCheckIfNotRequireKVMSetNoAcceleration(self):

    self.args.require_kvm = False

    with FvdlTarget.CreateFromArgs(self.args) as target:

      target.Shutdown = mock.MagicMock()

      common.EnsurePathExists = mock.MagicMock(return_value='image')

      with mock.patch.object(boot_data, 'ProvisionSSH') as provision_mock:

        self.assertIn('--noacceleration', target._BuildCommand())

  def testBuildCommandCheckIfNotEnableGraphicsSetHeadless(self):

    self.args.enable_graphics = True

    with FvdlTarget.CreateFromArgs(self.args) as target:

      target.Shutdown = mock.MagicMock()

      common.EnsurePathExists = mock.MagicMock(return_value='image')

      with mock.patch.object(boot_data, 'ProvisionSSH') as provision_mock:

        self.assertNotIn('--headless', target._BuildCommand())

  def testBuildCommandCheckIfHardwareGpuSetHostGPU(self):

    self.args.hardware_gpu = True

    with FvdlTarget.CreateFromArgs(self.args) as target:

      target.Shutdown = mock.MagicMock()

      common.EnsurePathExists = mock.MagicMock(return_value='image')

      with mock.patch.object(boot_data, 'ProvisionSSH') as provision_mock:

        self.assertIn('--host-gpu', target._BuildCommand())

  def testBuildCommandCheckIfWithNetworkSetTunTap(self):

    self.args.with_network = True

    with FvdlTarget.CreateFromArgs(self.args) as target:

      target.Shutdown = mock.MagicMock()

      common.EnsurePathExists = mock.MagicMock(return_value='image')

      with mock.patch.object(boot_data, 'ProvisionSSH') as provision_mock:

        self.assertIn('-N', target._BuildCommand())

  def testBuildCommandCheckRamSizeNot8192SetRamSize(self):

    self.args.ram_size_mb = 4096

    with FvdlTarget.CreateFromArgs(self.args) as target:

      target.Shutdown = mock.MagicMock()

      common.EnsurePathExists = mock.MagicMock(return_value='image')

      with mock.patch.object(boot_data, 'ProvisionSSH') as provision_mock:

        self.assertIn('--device-proto', target._BuildCommand())

        self.assertTrue(os.path.exists(target._device_proto_file.name))

        correct_ram_amount = False

        with open(target._device_proto_file.name) as file:

          for line in file:

            if line.strip() == 'ram:  4096':

              correct_ram_amount = True

              break

        self.assertTrue(correct_ram_amount)

if __name__ == '__main__':

  unittest.main()