###############################################################################
#
# Tests for XlsxWriter.
#
# Copyright (c), 2013-2016, John McNamara, jmcnamara@cpan.org
#

import unittest
from ...compatibility import StringIO
from ...sharedstrings import SharedStringTable
from ...sharedstrings import SharedStrings


class TestWriteSst(unittest.TestCase):
    """
    Test the SharedStrings _write_sst() method.

    """

    def setUp(self):
        self.fh = StringIO()
        self.sharedstrings = SharedStrings()
        self.sharedstrings._set_filehandle(self.fh)

    def test_write_sst(self):
        """Test the _write_sst() method"""

        string_table = SharedStringTable()

        # Add some strings and check the returned indices.
        string_table._get_shared_string_index('neptune')
        string_table._get_shared_string_index('neptune')
        string_table._get_shared_string_index('neptune')
        string_table._get_shared_string_index('mars')
        string_table._get_shared_string_index('venus')
        string_table._get_shared_string_index('mars')
        string_table._get_shared_string_index('venus')
        self.sharedstrings.string_table = string_table

        self.sharedstrings._write_sst()

        exp = """<sst xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main" count="7" uniqueCount="3">"""
        got = self.fh.getvalue()

        self.assertEqual(got, exp)
