import unittest
from unittest import mock
from gn2.wqflask.marker_regression.qtlreaper_mapping import gen_pheno_txt_file

# issues some methods in genofile object are not defined
# modify samples should equal to vals


class TestQtlReaperMapping(unittest.TestCase):
    @mock.patch("gn2.wqflask.marker_regression.qtlreaper_mapping.TEMPDIR", "/home/user/data")
    def test_gen_pheno_txt_file(self):
        vals = ["V1", "x", "V4", "V3", "x"]
        samples = ["S1", "S2", "S3", "S4", "S5"]
        trait_filename = "trait_file"
        with mock.patch("builtins.open", mock.mock_open())as mock_open:
            gen_pheno_txt_file(samples=samples, vals=vals,
                               trait_filename=trait_filename)
            mock_open.assert_called_once_with(
                "/home/user/data/gn2/trait_file.txt", "w")
            filehandler = mock_open()
            write_calls = [mock.call('Trait\t'), mock.call(
                'S1\tS3\tS4\n'), mock.call('T1\t'), mock.call('V1\tV4\tV3')]

            filehandler.write.assert_has_calls(write_calls)