"""Tests of the built-in user data handlers."""

import os

from tests.unittests import helpers as test_helpers

from cloudinit import handlers
from cloudinit import helpers
from cloudinit import util

from cloudinit.handlers import upstart_job

from cloudinit.settings import (PER_ALWAYS, PER_INSTANCE)


class TestBuiltins(test_helpers.FilesystemMockingTestCase):

    def test_upstart_frequency_no_out(self):
        c_root = self.makeDir()
        up_root = self.makeDir()
        paths = helpers.Paths({
            'cloud_dir': c_root,
            'upstart_dir': up_root,
        })
        freq = PER_ALWAYS
        h = upstart_job.UpstartJobPartHandler(paths)
        # No files should be written out when
        # the frequency is ! per-instance
        h.handle_part('', handlers.CONTENT_START,
                      None, None, None)
        h.handle_part('blah', 'text/upstart-job',
                      'test.conf', 'blah', freq)
        h.handle_part('', handlers.CONTENT_END,
                      None, None, None)
        self.assertEquals(0, len(os.listdir(up_root)))

    def test_upstart_frequency_single(self):
        # files should be written out when frequency is ! per-instance
        new_root = self.makeDir()
        freq = PER_INSTANCE

        self.patchOS(new_root)
        self.patchUtils(new_root)
        paths = helpers.Paths({
            'upstart_dir': "/etc/upstart",
        })

        upstart_job.SUITABLE_UPSTART = True
        util.ensure_dir("/run")
        util.ensure_dir("/etc/upstart")

        mock_subp = self.mocker.replace(util.subp, passthrough=False)
        mock_subp(["initctl", "reload-configuration"], capture=False)
        self.mocker.replay()

        h = upstart_job.UpstartJobPartHandler(paths)
        h.handle_part('', handlers.CONTENT_START,
                      None, None, None)
        h.handle_part('blah', 'text/upstart-job',
                      'test.conf', 'blah', freq)
        h.handle_part('', handlers.CONTENT_END,
                      None, None, None)

        self.assertEquals(1, len(os.listdir('/etc/upstart')))