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# coding: utf-8

import pytest  # NOQA

from .roundtrip import round_trip, round_trip_dump_all, round_trip_load_all


class TestDocument:
    def test_single_doc_begin_end(self):
        inp = """\
        ---
        - a
        - b
        ...
        """
        round_trip(inp, explicit_start=True, explicit_end=True)

    def test_multi_doc_begin_end(self):
        inp = """\
        ---
        - a
        ...
        ---
        - b
        ...
        """
        docs = list(round_trip_load_all(inp))
        assert docs == [['a'], ['b']]
        out = round_trip_dump_all(docs, explicit_start=True, explicit_end=True)
        assert out == '---\n- a\n...\n---\n- b\n...\n'

    def test_multi_doc_no_start(self):
        inp = """\
        - a
        ...
        ---
        - b
        ...
        """
        docs = list(round_trip_load_all(inp))
        assert docs == [['a'], ['b']]

    def test_multi_doc_no_end(self):
        inp = """\
        - a
        ---
        - b
        """
        docs = list(round_trip_load_all(inp))
        assert docs == [['a'], ['b']]

    def test_multi_doc_ends_only(self):
        # this is ok in 1.2
        inp = """\
        - a
        ...
        - b
        ...
        """
        docs = list(round_trip_load_all(inp, version=(1, 2)))
        assert docs == [['a'], ['b']]

    def test_multi_doc_ends_only_1_1(self):
        import ruyaml

        # this is not ok in 1.1
        with pytest.raises(ruyaml.parser.ParserError):
            inp = """\
            - a
            ...
            - b
            ...
            """
            docs = list(round_trip_load_all(inp, version=(1, 1)))
            assert docs == [['a'], ['b']]  # not True, but not reached