intent/tests/test_markdown.py

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from intent.features.diff import line_diff
from intent.markdown import render
def test_blocks_carry_source_lines():
html = render("Para one\ncontinues.\n\n- a\n- b\n")
assert '<p data-source-lines="1-2">' in html
assert '<li data-source-lines="4-4">' in html
def test_headings_shift_down_one_level():
html = render("# Top\n\n###### Deepest\n")
assert "<h2" in html and "<h1" not in html
assert "<h6" in html
def test_raw_html_and_script_links_are_neutralised():
html = render("<script>alert(1)</script>\n\n[x](javascript:alert(1)) <img src=x onerror=y>")
assert "<script" not in html
assert "javascript:" not in html.replace("[x](javascript:alert(1))", "")
assert "onerror" not in html.replace("onerror=y&gt;", "")
def test_tables_and_strikethrough():
html = render("| a |\n|---|\n| 1 |\n\n~~old~~")
assert "<table" in html and "<s>old</s>" in html
def test_line_diff_hunks():
old = "\n".join(f"line {i}" for i in range(1, 21))
new = old.replace("line 10", "line ten")
[hunk] = line_diff(old, new)
kinds = [(line.kind, line.old_number, line.new_number) for line in hunk]
assert ("removed", 10, None) in kinds
assert ("added", None, 10) in kinds
assert kinds[0] == ("same", 7, 7) # three lines of context
assert line_diff(old, old) == []