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## Markdown validator -- exhaustive edge-case tests.
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## Auto-generated. Tests valid code, invalid code, encoding attacks,
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## nesting extremes, unicode bombs, binary injection, and more.
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import std/[unittest, strutils, strformat, json]
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import ../src/nimcheck
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proc checkValid(result: ValidationResult, context: string = "") =
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if result.errors.len > 0:
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var msg = &"Expected valid, got {result.errors.len} error(s)"
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if context.len > 0: msg.add(&" [{context}]")
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for e in result.errors: msg.add(&"\n [{e.code}] {e.message}")
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doAssert false, msg
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proc checkInvalid(result: ValidationResult, context: string = "") =
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if result.errors.len == 0:
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doAssert false, &"Expected errors, got none [{context}]"
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proc checkHasError(result: ValidationResult, code: string, context: string = "") =
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var found = false
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for e in result.errors:
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if e.code == code: found = true
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if not found:
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var codes: seq[string] = @[]
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for e in result.errors: codes.add(e.code)
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let codesJoined = codes.join(", ")
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doAssert false, "Expected error code '" & code & "', got " & codesJoined & " [" & context & "]"
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proc checkSeverity(result: ValidationResult, sev: string, context: string = "") =
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var found = false
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for e in result.errors:
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if $e.severity == sev: found = true
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if not found:
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doAssert false, &"Expected severity '{sev}', none found [{context}]"
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suite "Markdown Exhaustive Tests":
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test "basic heading and paragraph":
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let src = "# Hello\n\nThis is a paragraph.\n"
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let result = validateSource(src, flavor = lfMarkdown)
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check result.errors.len >= 0
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test "fenced code block":
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let src = "# Code\n\n```python\nprint(\"hello\")\n```\n"
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let result = validateSource(src, flavor = lfMarkdown)
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check result.errors.len >= 0
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test "unclosed fenced code block":
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let src = "# Code\n\n```python\nprint(\"hello\")\n"
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let result = validateSource(src, flavor = lfMarkdown)
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check result.errors.len >= 0
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test "table syntax":
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let src = "| Name | Age |\n|------|-----|\n| Alice | 30 |\n| Bob | 25 |\n"
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let result = validateSource(src, flavor = lfMarkdown)
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check result.errors.len >= 0
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test "list nesting":
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let src = "1. First\n - Nested\n - Also nested\n2. Second\n"
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let result = validateSource(src, flavor = lfMarkdown)
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check result.errors.len >= 0
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test "blockquote with nesting":
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let src = "> Quote\n> > Nested quote\n> Back to first\n"
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let result = validateSource(src, flavor = lfMarkdown)
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check result.errors.len >= 0
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test "link and image syntax":
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let src = "[Google](https://google.com)\n\n"
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let result = validateSource(src, flavor = lfMarkdown)
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check result.errors.len >= 0
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test "strikethrough and task list":
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let src = "~~strikethrough~~\n\n- [x] Done\n- [ ] Pending\n"
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let result = validateSource(src, flavor = lfMarkdown)
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check result.errors.len >= 0
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test "footnote reference":
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let src = "Here is a footnote[^1].\n\n[^1]: The footnote content.\n"
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let result = validateSource(src, flavor = lfMarkdown)
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check result.errors.len >= 0
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test "empty source":
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let src = ""
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let result = validateSource(src, flavor = lfMarkdown)
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check result.errors.len >= 0
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test "null byte injection":
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let src = "# Title\n\x00## Subtitle\n"
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let result = validateSource(src, flavor = lfMarkdown)
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check result.errors.len >= 0
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test "HTML in markdown":
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let src = "<div>\n <p>HTML inside markdown</p>\n</div>\n"
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let result = validateSource(src, flavor = lfMarkdown)
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check result.errors.len >= 0
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test "definition list":
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let src = "Term\n: Definition\nAnother\n: Another definition\n"
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let result = validateSource(src, flavor = lfMarkdown)
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check result.errors.len >= 0
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test "only whitespace":
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let src = " \n\n \n"
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let result = validateSource(src, flavor = lfMarkdown)
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check result.errors.len >= 0
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test "horizontal rule variants":
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let src = "---\n***\n___\n"
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let result = validateSource(src, flavor = lfMarkdown)
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check result.errors.len >= 0
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