Test analyse_text for MIMELexer

test_mime.py

import os
import pytest

from pygments.lexers.mime import MIMELexer

@pytest.fixture(scope="module")
def lexer():
    yield MIMELexer()

def _example_file_path(filename):
    return os.path.join(os.path.dirname(__file__), 'examplefiles', filename)

def test_mime_analyse_text(lexer):
    with open(_example_file_path("MIME_example.eml"), 'rb') as fp:
        text = fp.read().decode('utf-8')
    res = lexer.analyse_text(text)
    assert res == 1.0