amanuensis/tests/test_parser.py

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from typing import Sequence
from amanuensis.parser.core import (
TextSpan,
LineBreak,
ParsedArticle,
BodyParagraph,
SignatureParagraph,
BoldSpan,
ItalicSpan,
CitationSpan,
Renderable,
SpanContainer,
RenderableVisitor,
Spans,
)
from amanuensis.parser.helpers import normalize_title, filesafe_title, titlesort
from amanuensis.parser.parsing import (
parse_breaks,
parse_paired_formatting,
parse_paragraph,
parse_raw_markdown,
)
def assert_types(spans: Spans, types: Sequence, loc=None):
"""
Asserts that a span list has the types specified.
Each element in `types` should be either a span type or a list. The first
element of the list is the container type and the remaining elements are the
content types.
"""
assert len(spans) == len(
types
), f"Unexpected type sequence length at loc {loc if loc else 'root'}"
i = -1
for span, span_type in zip(spans, types):
i += 1
i_loc = f"{loc}.{i}" if loc else f"{i}"
if isinstance(span_type, list):
assert isinstance(
span, SpanContainer
), f"Expected a span container at loc {i_loc}"
assert (
len(span.spans) == len(span_type) - 1
), f"Unexpected container size at loc {i_loc}"
assert isinstance(
span, span_type[0]
), f"Unexpected container type at loc {i_loc}"
assert_types(span.spans, span_type[1:], loc=i_loc)
else:
assert isinstance(span, Renderable), f"Expected a span at loc {i_loc}"
assert isinstance(span, span_type), f"Unexpected span type at loc {i_loc}"
def assert_text(spans: Spans, texts: Sequence, loc=None):
"""
Asserts that a span list has the inner text structure specified.
Each element in `texts` should be either a string or a list of the same.
"""
assert len(spans) == len(
texts
), f"Unexpected text sequence length at loc {loc if loc else 'root'}"
i = -1
for span, text in zip(spans, texts):
i += 1
i_loc = f"{loc}.{i}" if loc else f"{i}"
if isinstance(text, str):
assert isinstance(span, TextSpan), f"Expected a text span at loc {i_loc}"
assert span.innertext == text, f"Unexpected text at loc {i_loc}"
elif isinstance(text, list):
assert isinstance(
span, SpanContainer
), f"Expected a span container at loc {i_loc}"
assert_text(span.spans, text, loc=i_loc)
else:
assert isinstance(span, LineBreak), f"Expected a line break at loc {i_loc}"
def test_parse_breaks():
"""Test parsing for intra-pragraph line break"""
text: str
spans: Spans
# Only having a line break does nothing
text = "One\nTwo"
spans: Spans = parse_breaks(text)
assert_types(spans, [TextSpan])
assert_text(spans, [text])
# Having the mark causes the text to be split across it
text = r"One\\" + "\nTwo"
spans: Spans = parse_breaks(text)
assert_types(spans, [TextSpan, LineBreak, TextSpan])
assert_text(spans, ["One", None, "Two"])
# Multiple lines can be broken
text = r"One\\" + "\n" + r"Two\\" + "\nThree"
spans: Spans = parse_breaks(text)
assert_types(spans, [TextSpan, LineBreak, TextSpan, LineBreak, TextSpan])
assert_text(spans, ["One", None, "Two", None, "Three"])
# The mark must be at the end of the line
text = r"One\\ " + "\nTwo"
spans: Spans = parse_breaks(text)
assert_types(spans, (TextSpan,))
assert_text(spans, [text])
def test_simple_single_parse_pairs():
"""Test parsing for bold and italic marks"""
text: str
spans: Spans
# Empty pair marks should parse
text = "****"
spans = parse_paired_formatting(text)
assert_types(spans, [[BoldSpan]])
text = "////"
spans = parse_paired_formatting(text)
assert_types(spans, [[ItalicSpan]])
# Pair marks with text inside should parse
text = "**hello**"
spans = parse_paired_formatting(text)
assert_types(spans, [[BoldSpan, TextSpan]])
assert_text(spans, [["hello"]])
text = "//hello//"
spans = parse_paired_formatting(text)
assert_types(spans, [[ItalicSpan, TextSpan]])
assert_text(spans, [["hello"]])
# Text outside of pair marks should parse on the same level
text = "**hello** world"
spans = parse_paired_formatting(text)
assert_types(spans, [[BoldSpan, TextSpan], TextSpan])
assert_text(spans, [["hello"], " world"])
text = "//hello// world"
spans = parse_paired_formatting(text)
assert_types(spans, [[ItalicSpan, TextSpan], TextSpan])
assert_text(spans, [["hello"], " world"])
# Text before, between, and after pair marks should parse
text = "In the **beginning** was //the// Word"
spans = parse_paired_formatting(text)
assert_types(
spans,
[TextSpan, [BoldSpan, TextSpan], TextSpan, [ItalicSpan, TextSpan], TextSpan],
)
assert_text(spans, ["In the ", ["beginning"], " was ", ["the"], " Word"])
def test_simple_parse_pairs_with_break():
"""Test pair marks with breaks"""
text: str
spans: Spans
text = r"**glory\\" + "\nhammer**"
spans = parse_paired_formatting(text)
assert_types(spans, [[BoldSpan, TextSpan]])
assert_text(spans, [["glory\\\\\nhammer"]])
text = r"//glory\\" + "\nhammer//"
spans = parse_paired_formatting(text)
assert_types(spans, [[ItalicSpan, TextSpan]])
assert_text(spans, [["glory\\\\\nhammer"]])
text = r"**glory\\" + "\n**hammer**"
spans = parse_paired_formatting(text)
assert_types(spans, [[BoldSpan, TextSpan], TextSpan])
assert_text(spans, [["glory\\\\\n"], "hammer**"])
text = r"//glory\\" + "\n//hammer//"
spans = parse_paired_formatting(text)
assert_types(spans, [[ItalicSpan, TextSpan], TextSpan])
assert_text(spans, [["glory\\\\\n"], "hammer//"])
def test_simple_nested_parse_pairs():
"""Test parsing for nesting bold and italic"""
text: str
spans: Spans
# Simple nested test cases
text = "**//hello//**"
spans = parse_paired_formatting(text)
assert_types(spans, [[BoldSpan, [ItalicSpan, TextSpan]]])
assert_text(spans, [[["hello"]]])
text = "//**world**//"
spans = parse_paired_formatting(text)
assert_types(spans, [[ItalicSpan, [BoldSpan, TextSpan]]])
assert_text(spans, [[["world"]]])
# Overlap should only parse the first
text = "**Hello//world**//"
spans = parse_paired_formatting(text)
assert_types(spans, [[BoldSpan, TextSpan], TextSpan])
assert_text(spans, [["Hello//world"], "//"])