from document_qa.document_qa_engine import TextMerger


def test_merge_passages_small_chunk():
    merger = TextMerger()

    passages = [
        {
            'text': "The quick brown fox jumps over the tree",
            'coordinates': '1'
        },
        {
            'text': "and went straight into the mouth of a bear.",
            'coordinates': '2'
        },
        {
            'text': "The color of the colors is a color with colors",
            'coordinates': '3'
        },
        {
            'text': "the main colors are not the colorw we show",
            'coordinates': '4'
        }
    ]
    new_passages = merger.merge_passages(passages, chunk_size=10, tolerance=0)

    assert len(new_passages) == 4
    assert new_passages[0]['coordinates'] == "1"
    assert new_passages[0]['text'] == "The quick brown fox jumps over the tree"

    assert new_passages[1]['coordinates'] == "2"
    assert new_passages[1]['text'] == "and went straight into the mouth of a bear."

    assert new_passages[2]['coordinates'] == "3"
    assert new_passages[2]['text'] == "The color of the colors is a color with colors"

    assert new_passages[3]['coordinates'] == "4"
    assert new_passages[3]['text'] == "the main colors are not the colorw we show"


def test_merge_passages_big_chunk():
    merger = TextMerger()

    passages = [
        {
            'text': "The quick brown fox jumps over the tree",
            'coordinates': '1'
        },
        {
            'text': "and went straight into the mouth of a bear.",
            'coordinates': '2'
        },
        {
            'text': "The color of the colors is a color with colors",
            'coordinates': '3'
        },
        {
            'text': "the main colors are not the colorw we show",
            'coordinates': '4'
        }
    ]
    new_passages = merger.merge_passages(passages, chunk_size=20, tolerance=0)

    assert len(new_passages) == 2
    assert new_passages[0]['coordinates'] == "1;2"
    assert new_passages[0][
               'text'] == "The quick brown fox jumps over the tree and went straight into the mouth of a bear."

    assert new_passages[1]['coordinates'] == "3;4"
    assert new_passages[1][
               'text'] == "The color of the colors is a color with colors the main colors are not the colorw we show"