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## CSS 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 "CSS Exhaustive Tests":
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test "basic valid CSS":
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let src = "body { color: red; background: blue; }\n"
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let result = validateSource(src, flavor = lfCSS)
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check result.errors.len >= 0
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test "unclosed string":
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let src = "body { content: \"hello; }\n"
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let result = validateSource(src, flavor = lfCSS)
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check result.errors.len >= 0
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test "media query":
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let src = "@media (max-width: 600px) { .class { display: none; } }\n"
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let result = validateSource(src, flavor = lfCSS)
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check result.errors.len >= 0
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test "unclosed block comment":
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let src = "body { color: red; /* unclosed }\n"
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let result = validateSource(src, flavor = lfCSS)
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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 = lfCSS)
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check result.errors.len >= 0
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test "keyframes":
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let src = "@keyframes slide { from { left: 0; } to { left: 100px; } }\n"
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let result = validateSource(src, flavor = lfCSS)
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check result.errors.len >= 0
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test "unicode in string":
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let src = "body::before { content: \"caf\u00e9\"; }\n"
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let result = validateSource(src, flavor = lfCSS)
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check result.errors.len >= 0
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test "nested rules":
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let src = ".parent { .child { color: red; } }\n"
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let result = validateSource(src, flavor = lfCSS)
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check result.errors.len >= 0
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test "multiple selectors":
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let src = "h1, h2, h3 { font-weight: bold; }\n"
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let result = validateSource(src, flavor = lfCSS)
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check result.errors.len >= 0
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test "very long line":
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let src = ".class { color: " & repeat("very", 100) & "; }\n"
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let result = validateSource(src, flavor = lfCSS)
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check result.errors.len >= 0
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