Add renderable visitor unit test

amanuensis/parser/parsing.py

@@ -65,12 +65,8 @@ def parse_paired_formatting(
     handlers[next_cite] = lambda: parse_citation(
         text, in_bold=in_bold, in_italic=in_italic
     )
-    handlers[next_bold] = lambda: parse_bold(
-        text, in_cite=in_cite, in_italic=in_italic
-    )
-    handlers[next_italic] = lambda: parse_italic(
-        text, in_cite=in_cite, in_bold=in_bold
-    )
+    handlers[next_bold] = lambda: parse_bold(text, in_cite=in_cite, in_italic=in_italic)
+    handlers[next_italic] = lambda: parse_italic(text, in_cite=in_cite, in_bold=in_bold)
     # Map the next parsing step at -1. If we're currently inside a formatting
     # mark pair, skip parsing line breaks, which are not allowed inside paired
     # marks.

tests/test_parser.py

@@ -30,13 +30,13 @@ def assert_types(spans: Spans, types: Sequence, loc=None):
     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
+    for i in range(max(len(spans), len(types))):
         i_loc = f"{loc}.{i}" if loc else f"{i}"
+        # Check lengths are equal
+        assert i < len(spans), f"Span list unexpectedly short at {i_loc}"
+        assert i < len(types), f"Type list unexpectedly short at {i_loc}"
+        # Check types are equal
+        span, span_type = spans[i], types[i]
         if isinstance(span_type, list):
             assert isinstance(
                 span, SpanContainer
@@ -317,3 +317,147 @@ def test_parse_citation_nested():
     assert_text(spans, [["**hello world"], "**"])
     citation: CitationSpan = spans[0]
     assert citation.cite_target == "**hello world"
+
+
+def test_parse_paragraphs():
+    """Test parsing paragraphs"""
+    para: str
+    span: SpanContainer
+
+    # Body paragraph
+    para = "\tIn the beginning was the Word."
+    span = parse_paragraph(para)
+    assert_types([span], [[BodyParagraph, TextSpan]])
+    assert_text([span], [["In the beginning was the Word."]])
+
+    # Signature paragraph
+    para = "~Ersatz Scrivener, scholar extraordinaire"
+    span = parse_paragraph(para)
+    assert_types([span], [[SignatureParagraph, TextSpan]])
+    assert_text([span], [["Ersatz Scrivener, scholar extraordinaire"]])
+
+
+def test_parse_article():
+    """Test the full article parser"""
+    article: str = (
+        "Writing a **unit test** requires having test //content//.\n\n"
+        "This content, of course, must be [[created|Writing test collateral]].\n\n"
+        "~Bucky\\\\\nUnit test writer"
+    )
+    parsed: ParsedArticle = parse_raw_markdown(article)
+
+    assert_types(
+        [parsed],
+        [
+            [
+                ParsedArticle,
+                [
+                    BodyParagraph,
+                    TextSpan,
+                    [BoldSpan, TextSpan],
+                    TextSpan,
+                    [ItalicSpan, TextSpan],
+                    TextSpan,
+                ],
+                [BodyParagraph, TextSpan, [CitationSpan, TextSpan], TextSpan],
+                [SignatureParagraph, TextSpan, LineBreak, TextSpan],
+            ]
+        ],
+    )
+    assert_text(
+        [parsed],
+        [
+            [
+                [
+                    "Writing a ",
+                    ["unit test"],
+                    " requires having test ",
+                    ["content"],
+                    ".",
+                ],
+                ["This content, of course, must be ", ["created"], "."],
+                ["Bucky", None, "Unit test writer"],
+            ]
+        ],
+    )
+
+
+def test_visitor():
+    """Test that a visitor dispatches to hooks correctly"""
+
+    class TestVisitor(RenderableVisitor):
+        def __init__(self):
+            self.visited = []
+
+        def TextSpan(self, span: TextSpan):
+            assert isinstance(span, TextSpan)
+            self.visited.append(span)
+
+        def LineBreak(self, span: LineBreak):
+            assert isinstance(span, LineBreak)
+            self.visited.append(span)
+
+        def ParsedArticle(self, span: ParsedArticle):
+            assert isinstance(span, ParsedArticle)
+            self.visited.append(span)
+            span.recurse(self)
+
+        def BodyParagraph(self, span: BodyParagraph):
+            assert isinstance(span, BodyParagraph)
+            self.visited.append(span)
+            span.recurse(self)
+
+        def SignatureParagraph(self, span: SignatureParagraph):
+            assert isinstance(span, SignatureParagraph)
+            self.visited.append(span)
+            span.recurse(self)
+
+        def BoldSpan(self, span: BoldSpan):
+            assert isinstance(span, BoldSpan)
+            self.visited.append(span)
+            span.recurse(self)
+
+        def ItalicSpan(self, span: ItalicSpan):
+            assert isinstance(span, ItalicSpan)
+            self.visited.append(span)
+            span.recurse(self)
+
+        def CitationSpan(self, span: CitationSpan):
+            assert isinstance(span, CitationSpan)
+            self.visited.append(span)
+            span.recurse(self)
+
+    article: str = (
+        "Writing a **unit test** requires having test //content//.\n\n"
+        "This content, of course, must be [[created|Writing test collateral]].\n\n"
+        "~Bucky\\\\\nUnit test writer"
+    )
+    parsed: ParsedArticle = parse_raw_markdown(article)
+
+    visitor = TestVisitor()
+    # All the typecheck asserts pass
+    parsed.render(visitor)
+    # The test article should parse into these spans and visit in this (arbitrary) order
+    type_order = [
+        ParsedArticle,
+        BodyParagraph,
+        TextSpan,
+        BoldSpan,
+        TextSpan,
+        TextSpan,
+        ItalicSpan,
+        TextSpan,
+        TextSpan,
+        BodyParagraph,
+        TextSpan,
+        CitationSpan,
+        TextSpan,
+        TextSpan,
+        SignatureParagraph,
+        TextSpan,
+        LineBreak,
+        TextSpan,
+    ]
+    assert len(visitor.visited) == len(type_order)
+    for span, type in zip(visitor.visited, type_order):
+        assert isinstance(span, type)