from unittest import TestCase

from hexlib.text import preprocess


class TestText(TestCase):

    def test_html_invalid(self):
        text = ""
        cleaned = preprocess(
            text,
            clean_html=True,
        )
        expected = ""

        self.assertEqual(cleaned, expected)

    def test_html_1(self):
        text = "<div>Hello, <strong>world</strong></div>"
        cleaned = preprocess(
            text,
            clean_html=True,
        )
        expected = "Hello, world"

        self.assertEqual(cleaned, expected)

    def test_html_2(self):
        text = "<div>Hello, <strong>world</strong></div>"
        cleaned = preprocess(
            text,
            clean_html=True,
            lowercase=True
        )
        expected = "hello, world"

        self.assertEqual(cleaned, expected)

    def test_html_3(self):
        text = "<div>\n Hello, \t\n<strong> world    </strong>\n\t</div>"
        cleaned = preprocess(
            text,
            clean_html=True,
            lowercase=True,
        )
        expected = " hello, world "

        self.assertEqual(cleaned, expected)

    def test_html_4(self):
        text = "<div>\n Hello, \t\n<strong> world    </strong>\n\t</div>"
        cleaned = preprocess(
            text,
            clean_html=True,
            lowercase=True,
            strip=True
        )
        expected = "hello, world"

        self.assertEqual(cleaned, expected)

    def test_html_5(self):
        text = "<div>\n Hello, \t\n<strong> world    </strong>\n\t</div>"
        cleaned = preprocess(
            text,
            clean_html=True,
            lowercase=True,
            strip=True,
            remove_punctuation=True
        )
        expected = "hello world"

        self.assertEqual(cleaned, expected)

    def test_html_6(self):
        text = "<div>\n Hello, \t\n<strong>a the world    </strong>\n\t</div>"
        cleaned = preprocess(
            text,
            clean_html=True,
            lowercase=True,
            remove_punctuation=True,
            strip=True,
            remove_stopwords_en=True
        )
        expected = "hello world"

        self.assertEqual(cleaned, expected)

    def test_html_7(self):
        text = "<div>\n Hello, \t\n<strong>a the worlds    </strong>\n\t</div>"
        cleaned = preprocess(
            text,
            clean_html=True,
            lowercase=True,
            remove_punctuation=True,
            strip=True,
            remove_stopwords_en=True,
            lemmatize=True
        )
        expected = "hello world"

        self.assertEqual(cleaned, expected)

    def test_html_8(self):
        text = "<div>\n Hello, \t\n<strong>a the worlds!    </strong>\n\t</div>"
        cleaned = preprocess(
            text,
            clean_html=True,
            lowercase=True,
            remove_punctuation=True,
            strip=True,
            remove_stopwords_en=True,
            lemmatize=True
        )
        expected = "hello world"

        self.assertEqual(cleaned, expected)

    def test_html_9(self):
        text = "<div>\n Hello, \t\n<strong>world! it's it`s   </strong>\n\t</div>"
        cleaned = preprocess(
            text,
            clean_html=True,
            lowercase=True,
            remove_punctuation=True,
            strip=True,
            lemmatize=True,
            fix_single_quotes=True
        )
        expected = "hello world it's it's"

        self.assertEqual(cleaned, expected)

    def test_html_10(self):
        text = "<div>\n Hello, \t\n<strong>world! it's it`s https://google.ca/test/abc.pdf  </strong>\n\t</div>"
        cleaned = preprocess(
            text,
            clean_html=True,
            lowercase=True,
            remove_punctuation=True,
            strip=True,
            lemmatize=True,
            fix_single_quotes=True,
            remove_urls=True
        )
        expected = "hello world it's it's"

        self.assertEqual(cleaned, expected)

    def test_html_11(self):
        text = "<div>\n Hello, \t\n<strong>world! it's it`s & | </strong>\n\t</div>"
        cleaned = preprocess(
            text,
            clean_html=True,
            lowercase=True,
            remove_punctuation=True,
            strip=True,
            lemmatize=True,
            fix_single_quotes=True,
            remove_stopwords_en=True,
            remove_urls=True
        )
        expected = "hello world"

        self.assertEqual(cleaned, expected)

    def test_bigrams(self):
        text = "x A b c d e f g h"
        cleaned = preprocess(
            text,
            lowercase=True,
            bigrams={
                ("a", "b"),
                ("c", "d"),
                ("f", "g"),
            }
        )
        expected = "x a_b c_d e f_g h"

        self.assertEqual(cleaned, expected)