"""The unittest.TestCase for Server Selection JSON tests."""
import os
import os.path

from buildscripts.resmokelib import config
from buildscripts.resmokelib import core
from buildscripts.resmokelib import errors
from buildscripts.resmokelib import utils
from buildscripts.resmokelib.testing.testcases import interface
from buildscripts.resmokelib.utils import globstar


class ServerSelectionJsonTestCase(interface.ProcessTestCase):
    """Server Selection JSON test case."""

    REGISTERED_NAME = "server_selection_json_test"
    EXECUTABLE_BUILD_PATH = "build/**/mongo/client/sdam/server_selection_json_test"
    TEST_DIR = os.path.normpath("src/mongo/client/sdam/json_tests/server_selection_tests")

    def __init__(self, logger, json_test_file, program_options=None):
        """Initialize the TestCase with the executable to run."""
        interface.ProcessTestCase.__init__(self, logger, "Server Selection Json Test",
                                           json_test_file)

        self.program_executable = self._find_executable()
        self.json_test_file = os.path.normpath(json_test_file)
        self.program_options = utils.default_if_none(program_options, {}).copy()

    def _find_executable(self):
        if config.INSTALL_DIR is not None:
            binary = os.path.join(config.INSTALL_DIR, "server_selection_json_test")
            if os.name == "nt":
                binary += ".exe"

            if os.path.isfile(binary):
                return binary

        execs = globstar.glob(self.EXECUTABLE_BUILD_PATH + '.exe')
        if not execs:
            execs = globstar.glob(self.EXECUTABLE_BUILD_PATH)
        if len(execs) != 1:
            raise errors.StopExecution(
                "There must be a single server_selection_json_test binary in {}".format(execs))
        return execs[0]

    def _make_process(self):
        command_line = [self.program_executable]
        command_line += ["--source-dir", self.TEST_DIR]
        command_line += ["-f", self.json_test_file]
        self.program_options["job_num"] = self.fixture.job_num
        self.program_options["test_id"] = self._id
        return core.programs.make_process(self.logger, command_line, **self.program_options)