From d071b4177c1a3897f4682e245046a45f362b6ac5 Mon Sep 17 00:00:00 2001 From: Toni Uhlig Date: Fri, 1 Oct 2021 14:21:33 +0200 Subject: Squashed 'deps/md4c/' content from commit 7f05330 git-subtree-dir: deps/md4c git-subtree-split: 7f0533068b4319d8cb3d0f33ca9aa66a857734a6 --- test/coverage.txt | 522 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 522 insertions(+) create mode 100644 test/coverage.txt (limited to 'test/coverage.txt') diff --git a/test/coverage.txt b/test/coverage.txt new file mode 100644 index 0000000..66d5cc8 --- /dev/null +++ b/test/coverage.txt @@ -0,0 +1,522 @@ + +# Coverage + +This file is just a collection of unit tests not covered elsewhere. + +Most notably regression tests, tests improving code coverage and other useful +things may drop here. + +(However any tests requiring any additional command line option, like enabling +an extension, must be included in their respective files.) + + +## GitHub Issues + +### [Issue 2](https://github.com/mity/md4c/issues/2) + +Raw HTML block: + +```````````````````````````````` example + +. + +```````````````````````````````` + +Inline: + +```````````````````````````````` example +foo bar +. +

foo bar

+```````````````````````````````` + +Inline with a line break: + +```````````````````````````````` example +foo bar +. +

foo bar

+```````````````````````````````` + + +### [Issue 4](https://github.com/mity/md4c/issues/4) + +```````````````````````````````` example +![alt text with *entity* ©](img.png 'title') +. +

alt text with entity ©

+```````````````````````````````` + + +### [Issue 9](https://github.com/mity/md4c/issues/9) + +```````````````````````````````` example +> [foo +> bar]: /url +> +> [foo bar] +. +
+

foo +bar

+
+```````````````````````````````` + + +### [Issue 10](https://github.com/mity/md4c/issues/10) + +```````````````````````````````` example +[x]: +x +- +
  • + +```````````````````````````````` + + +### [Issue 11](https://github.com/mity/md4c/issues/11) + +```````````````````````````````` example +x [link](/url "foo – bar") x +. +

    x link x

    +```````````````````````````````` + + +### [Issue 14](https://github.com/mity/md4c/issues/14) + +```````````````````````````````` example +a***b* c* +. +

    a*b c

    +```````````````````````````````` + + +### [Issue 15](https://github.com/mity/md4c/issues/15) + +```````````````````````````````` example +***b* c* +. +

    *b c

    +```````````````````````````````` + + +### [Issue 21](https://github.com/mity/md4c/issues/21) + +```````````````````````````````` example +a*b**c* +. +

    ab**c

    +```````````````````````````````` + + +### [Issue 33](https://github.com/mity/md4c/issues/33) + +```````````````````````````````` example +```&&&&&&&& +. +
    +```````````````````````````````` + + +### [Issue 36](https://github.com/mity/md4c/issues/36) + +```````````````````````````````` example +__x_ _x___ +. +

    x x_

    +```````````````````````````````` + + +### [Issue 39](https://github.com/mity/md4c/issues/39) + +```````````````````````````````` example +[\\]: x +. +```````````````````````````````` + + +### [Issue 40](https://github.com/mity/md4c/issues/40) + +```````````````````````````````` example +[x](url +'title' +)x +. +

    xx

    +```````````````````````````````` + + +### [Issue 65](https://github.com/mity/md4c/issues/65) + +```````````````````````````````` example +` +. +

    `

    +```````````````````````````````` + + +### [Issue 74](https://github.com/mity/md4c/issues/74) + +```````````````````````````````` example +[f]: +- + xx +- +. +
    xx
+
    +
      +
    • +
    +```````````````````````````````` + + +### [Issue 78](https://github.com/mity/md4c/issues/78) + +```````````````````````````````` example +[SS ẞ]: /url +[ẞ SS] +. +

    ẞ SS

    +```````````````````````````````` + + +### [Issue 83](https://github.com/mity/md4c/issues/83) + +```````````````````````````````` example +foo +> +. +

    foo

    +
    +
    + +```````````````````````````````` + + +### [Issue 95](https://github.com/mity/md4c/issues/95) + +```````````````````````````````` example +. foo +. +

    . foo

    +```````````````````````````````` + + +### [Issue 96](https://github.com/mity/md4c/issues/96) + +```````````````````````````````` example +[ab]: /foo +[a] [ab] [abc] +. +

    [a] ab [abc]

    +```````````````````````````````` + +```````````````````````````````` example +[a b]: /foo +[a b] +. +

    a b

    +```````````````````````````````` + + +### [Issue 97](https://github.com/mity/md4c/issues/97) + +```````````````````````````````` example +*a **b c* d** +. +

    a b c d

    + +```````````````````````````````` + + +### [Issue 100](https://github.com/mity/md4c/issues/100) + +```````````````````````````````` example + +. +

    foo@123456789012345678901234567890123456789012345678901234567890123.123456789012345678901234567890123456789012345678901234567890123

    +```````````````````````````````` + +```````````````````````````````` example + +. +

    <foo@123456789012345678901234567890123456789012345678901234567890123x.123456789012345678901234567890123456789012345678901234567890123>

    +```````````````````````````````` +(Note the `x` here which turns it over the max. allowed length limit.) + + +### [Issue 107](https://github.com/mity/md4c/issues/107) + +```````````````````````````````` example +***foo *bar baz*** +. +

    *foo bar baz

    + +```````````````````````````````` + + +### [Issue 124](https://github.com/mity/md4c/issues/124) + +```````````````````````````````` example +~~~ + x +~~~ + +~~~ + x +~~~ +. +
                    x
+
    +
                     x
+
    +```````````````````````````````` + + +### [Issue 131](https://github.com/mity/md4c/issues/131) + +```````````````````````````````` example +[![alt][img]][link] + +[img]: img_url +[link]: link_url +. +

    alt

    +```````````````````````````````` + + +### [Issue 142](https://github.com/mity/md4c/issues/142) + +```````````````````````````````` example +[fooﬗ]: /url +[fooﬕ] +. +

    [fooﬕ]

    +```````````````````````````````` + + +### [Issue 149](https://github.com/mity/md4c/issues/149) + +```````````````````````````````` example +- +. +
      +
      • +
    +```````````````````````````````` + + +## Code coverage + +### `md_is_unicode_whitespace__()` + +Unicode whitespace (here U+2000) forms a word boundary so these cannot be +resolved as emphasis span because there is no closer mark. + +```````````````````````````````` example +*foo *bar +. +

    *foo *bar

    +```````````````````````````````` + + +### `md_is_unicode_punct__()` + +Ditto for Unicode punctuation (here U+00A1). + +```````````````````````````````` example +*foo¡*bar +. +

    *foo¡*bar

    +```````````````````````````````` + + +### `md_get_unicode_fold_info()` + +```````````````````````````````` example +[Příliš žluťoučký kůň úpěl ďábelské ódy.] + +[PŘÍLIŠ ŽLUŤOUČKÝ KŮŇ ÚPĚL ĎÁBELSKÉ ÓDY.]: /url +. +

    Příliš žluťoučký kůň úpěl ďábelské ódy.

    +```````````````````````````````` + + +### `md_decode_utf8__()` and `md_decode_utf8_before__()` + +```````````````````````````````` example +á*Á (U+00E1, i.e. two byte UTF-8 sequence) + *  (U+2000, i.e. three byte UTF-8 sequence) +. +

    á*Á (U+00E1, i.e. two byte UTF-8 sequence) + * (U+2000, i.e. three byte UTF-8 sequence)

    +```````````````````````````````` + + +### `md_is_link_destination_A()` + +```````````````````````````````` example +[link]() +. +

    link

    +```````````````````````````````` + + +### `md_link_label_eq()` + +```````````````````````````````` example +[foo bar] + +[foo bar]: /url +. +

    foo bar

    +```````````````````````````````` + + +### `md_is_inline_link_spec()` + +```````````````````````````````` example +> [link](/url 'foo +> bar') +. +
    +

    link

    +
    +```````````````````````````````` + + +### `md_build_ref_def_hashtable()` + +All link labels in the following example all have the same FNV1a hash (after +normalization of the label, which means after converting to a vector of Unicode +codepoints and lowercase folding). + +So the example triggers quite complex code paths which are not otherwise easily +tested. + +```````````````````````````````` example +[foo]: /foo +[qnptgbh]: /qnptgbh +[abgbrwcv]: /abgbrwcv +[abgbrwcv]: /abgbrwcv2 +[abgbrwcv]: /abgbrwcv3 +[abgbrwcv]: /abgbrwcv4 +[alqadfgn]: /alqadfgn + +[foo] +[qnptgbh] +[abgbrwcv] +[alqadfgn] +[axgydtdu] +. +

    foo +qnptgbh +abgbrwcv +alqadfgn +[axgydtdu]

    +```````````````````````````````` + +For the sake of completeness, the following C program was used to find the hash +collisions by brute force: + +~~~ + +#include +#include + + +static unsigned etalon; + + + +#define MD_FNV1A_BASE 2166136261 +#define MD_FNV1A_PRIME 16777619 + +static inline unsigned +fnv1a(unsigned base, const void* data, size_t n) +{ + const unsigned char* buf = (const unsigned char*) data; + unsigned hash = base; + size_t i; + + for(i = 0; i < n; i++) { + hash ^= buf[i]; + hash *= MD_FNV1A_PRIME; + } + + return hash; +} + + +static unsigned +unicode_hash(const char* data, size_t n) +{ + unsigned value; + unsigned hash = MD_FNV1A_BASE; + int i; + + for(i = 0; i < n; i++) { + value = data[i]; + hash = fnv1a(hash, &value, sizeof(unsigned)); + } + + return hash; +} + + +static void +recurse(char* buffer, size_t off, size_t len) +{ + int ch; + + if(off < len - 1) { + for(ch = 'a'; ch <= 'z'; ch++) { + buffer[off] = ch; + recurse(buffer, off+1, len); + } + } else { + for(ch = 'a'; ch <= 'z'; ch++) { + buffer[off] = ch; + if(unicode_hash(buffer, len) == etalon) { + printf("Dup: %.*s\n", (int)len, buffer); + } + } + } +} + +int +main(int argc, char** argv) +{ + char buffer[32]; + int len; + + if(argc < 2) + etalon = unicode_hash("foo", 3); + else + etalon = unicode_hash(argv[1], strlen(argv[1])); + + for(len = 1; len <= sizeof(buffer); len++) + recurse(buffer, 0, len); + + return 0; +} +~~~ -- cgit v1.2.3