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| -rw-r--r-- | tests/link_reference.rs | 402 |
1 files changed, 402 insertions, 0 deletions
diff --git a/tests/link_reference.rs b/tests/link_reference.rs new file mode 100644 index 0000000..cac1b39 --- /dev/null +++ b/tests/link_reference.rs @@ -0,0 +1,402 @@ +extern crate micromark; +use micromark::{micromark, micromark_with_options, Options}; + +const DANGER: &Options = &Options { + allow_dangerous_html: true, + allow_dangerous_protocol: true, + default_line_ending: None, +}; + +#[test] +fn link_reference() { + assert_eq!( + micromark("[bar]: /url \"title\"\n\n[foo][bar]"), + "<p><a href=\"/url\" title=\"title\">foo</a></p>", + "should support link references" + ); + + assert_eq!( + micromark("[ref]: /uri\n\n[link [foo [bar]]][ref]"), + "<p><a href=\"/uri\">link [foo [bar]]</a></p>", + "should support balanced brackets in link references" + ); + + assert_eq!( + micromark("[ref]: /uri\n\n[link \\[bar][ref]"), + "<p><a href=\"/uri\">link [bar</a></p>", + "should support escaped brackets in link references" + ); + + // To do: attention. + // assert_eq!( + // micromark("[ref]: /uri\n\n[link *foo **bar** `#`*][ref]"), + // "<p><a href=\"/uri\">link <em>foo <strong>bar</strong> <code>#</code></em></a></p>", + // "should support content in link references" + // ); + + assert_eq!( + micromark("[ref]: /uri\n\n[][ref]"), + "<p><a href=\"/uri\"><img src=\"moon.jpg\" alt=\"moon\" /></a></p>", + "should support images in link references" + ); + + assert_eq!( + micromark("[ref]: /uri\n\n[foo [bar](/uri)][ref]"), + "<p>[foo <a href=\"/uri\">bar</a>]<a href=\"/uri\">ref</a></p>", + "should not support links in link references" + ); + + // To do: attention. + // assert_eq!( + // micromark("[ref]: /uri\n\n[foo *bar [baz][ref]*][ref]"), + // "<p>[foo <em>bar <a href=\"/uri\">baz</a></em>]<a href=\"/uri\">ref</a></p>", + // "should not support deep links in link references" + // ); + + assert_eq!( + micromark("[ref]: /uri\n\n*[foo*][ref]"), + "<p>*<a href=\"/uri\">foo*</a></p>", + "should prefer link references over emphasis (1)" + ); + + assert_eq!( + micromark("[ref]: /uri\n\n[foo *bar][ref]"), + "<p><a href=\"/uri\">foo *bar</a></p>", + "should prefer link references over emphasis (2)" + ); + + assert_eq!( + micromark_with_options("[ref]: /uri\n\n[foo <bar attr=\"][ref]\">", &DANGER), + "<p>[foo <bar attr=\"][ref]\"></p>", + "should prefer HTML over link references" + ); + + assert_eq!( + micromark("[ref]: /uri\n\n[foo`][ref]`"), + "<p>[foo<code>][ref]</code></p>", + "should prefer code over link references" + ); + + assert_eq!( + micromark("[ref]: /uri\n\n[foo<http://example.com/?search=][ref]>"), + "<p>[foo<a href=\"http://example.com/?search=%5D%5Bref%5D\">http://example.com/?search=][ref]</a></p>", + "should prefer autolinks over link references" + ); + + assert_eq!( + micromark("[bar]: /url \"title\"\n\n[foo][BaR]"), + "<p><a href=\"/url\" title=\"title\">foo</a></p>", + "should match references to definitions case-insensitively" + ); + + assert_eq!( + micromark("[ТОЛПОЙ]: /url\n\n[Толпой][Толпой] is a Russian word."), + "<p><a href=\"/url\">Толпой</a> is a Russian word.</p>", + "should match references to definitions w/ unicode case-folding" + ); + + assert_eq!( + micromark("[Foo\n bar]: /url\n\n[Baz][Foo bar]"), + "<p><a href=\"/url\">Baz</a></p>", + "should match references to definitions w/ collapsing" + ); + + assert_eq!( + micromark("[bar]: /url \"title\"\n\n[foo] [bar]"), + "<p>[foo] <a href=\"/url\" title=\"title\">bar</a></p>", + "should not support whitespace between label and reference (1)" + ); + + assert_eq!( + micromark("[bar]: /url \"title\"\n\n[foo]\n[bar]"), + "<p>[foo]\n<a href=\"/url\" title=\"title\">bar</a></p>", + "should not support whitespace between label and reference (2)" + ); + + assert_eq!( + micromark("[foo]: /url1\n\n[foo]: /url2\n\n[bar][foo]"), + "<p><a href=\"/url1\">bar</a></p>", + "should prefer earlier definitions" + ); + + assert_eq!( + micromark("[foo!]: /url\n\n[bar][foo\\!]"), + "<p>[bar][foo!]</p>", + "should not match references to definitions w/ escapes" + ); + + assert_eq!( + micromark("[ref[]: /uri\n\n[foo][ref[]"), + "<p>[ref[]: /uri</p>\n<p>[foo][ref[]</p>", + "should not support references w/ brackets (1)" + ); + + assert_eq!( + micromark("[ref[bar]]: /uri\n\n[foo][ref[bar]]"), + "<p>[ref[bar]]: /uri</p>\n<p>[foo][ref[bar]]</p>", + "should not support references w/ brackets (2)" + ); + + assert_eq!( + micromark("[[[foo]]]: /url\n\n[[[foo]]]"), + "<p>[[[foo]]]: /url</p>\n<p>[[[foo]]]</p>", + "should not support references w/ brackets (3)" + ); + + assert_eq!( + micromark("[ref\\[]: /uri\n\n[foo][ref\\[]"), + "<p><a href=\"/uri\">foo</a></p>", + "should match references to definitions w/ matching escapes" + ); + + assert_eq!( + micromark("[bar\\\\]: /uri\n\n[bar\\\\]"), + "<p><a href=\"/uri\">bar\\</a></p>", + "should support escapes" + ); + + assert_eq!( + micromark("[]: /uri\n\n[]"), + "<p>[]: /uri</p>\n<p>[]</p>", + "should not support empty references" + ); + + // To do: trimming whitespace. + // assert_eq!( + // micromark("[\n ]: /uri\n\n[\n ]"), + // "<p>[\n]: /uri</p>\n<p>[\n]</p>", + // "should not support blank references" + // ); + + assert_eq!( + micromark("[foo]: /url \"title\"\n\n[foo][]"), + "<p><a href=\"/url\" title=\"title\">foo</a></p>", + "should support collaped references" + ); + + // To do: attention. + // assert_eq!( + // micromark("[*foo* bar]: /url \"title\"\n\n[*foo* bar][]"), + // "<p><a href=\"/url\" title=\"title\"><em>foo</em> bar</a></p>", + // "should support content in collaped references" + // ); + + assert_eq!( + micromark("[foo]: /url \"title\"\n\n[Foo][]"), + "<p><a href=\"/url\" title=\"title\">Foo</a></p>", + "should match references to definitions case-insensitively" + ); + + // To do: trimming whitespace. + // assert_eq!( + // micromark("[foo]: /url \"title\"\n\n[foo] \n[]"), + // "<p><a href=\"/url\" title=\"title\">foo</a>\n[]</p>", + // "should not support whitespace between label and collaped reference" + // ); + + assert_eq!( + micromark("[foo]: /url \"title\"\n\n[foo]"), + "<p><a href=\"/url\" title=\"title\">foo</a></p>", + "should support shortcut references" + ); + + // To do: attention. + // assert_eq!( + // micromark("[*foo* bar]: /url \"title\"\n\n[*foo* bar]"), + // "<p><a href=\"/url\" title=\"title\"><em>foo</em> bar</a></p>", + // "should support content in shortcut references (1)" + // ); + + // To do: attention. + // assert_eq!( + // micromark("[*foo* bar]: /url \"title\"\n\n[[*foo* bar]]"), + // "<p>[<a href=\"/url\" title=\"title\"><em>foo</em> bar</a>]</p>", + // "should support content in shortcut references (2)" + // ); + + assert_eq!( + micromark("[foo]: /url\n\n[[bar [foo]"), + "<p>[[bar <a href=\"/url\">foo</a></p>", + "should support content in shortcut references (3)" + ); + + assert_eq!( + micromark("[foo]: /url \"title\"\n\n[Foo]"), + "<p><a href=\"/url\" title=\"title\">Foo</a></p>", + "should match shortcut references to definitions case-insensitively" + ); + + assert_eq!( + micromark("[foo]: /url\n\n[foo] bar"), + "<p><a href=\"/url\">foo</a> bar</p>", + "should support whitespace after a shortcut reference" + ); + + assert_eq!( + micromark("[foo]: /url \"title\"\n\n\\[foo]"), + "<p>[foo]</p>", + "should “support” an escaped shortcut reference" + ); + + assert_eq!( + micromark("[foo*]: /url\n\n*[foo*]"), + "<p>*<a href=\"/url\">foo*</a></p>", + "should prefer shortcut references over emphasis" + ); + + assert_eq!( + micromark("[foo]: /url1\n[bar]: /url2\n\n[foo][bar]"), + "<p><a href=\"/url2\">foo</a></p>", + "should prefer full references over shortcut references" + ); + + assert_eq!( + micromark("[foo]: /url1\n\n[foo][]"), + "<p><a href=\"/url1\">foo</a></p>", + "should prefer collapsed references over shortcut references" + ); + + // To do: some bug! + // assert_eq!( + // micromark("[foo]: /url1\n\n[foo]()"), + // "<p><a href=\"\">foo</a></p>", + // "should prefer resources over shortcut references" + // ); + + assert_eq!( + micromark("[foo]: /url1\n\n[foo](not a link)"), + "<p><a href=\"/url1\">foo</a>(not a link)</p>", + "should support shortcut references when followed by nonconforming resources" + ); + + assert_eq!( + micromark("[baz]: /url\n\n[foo][bar][baz]"), + "<p>[foo]<a href=\"/url\">bar</a></p>", + "stable/unstable (1)" + ); + + assert_eq!( + micromark("[baz]: /url1\n[bar]: /url2\n\n[foo][bar][baz]"), + "<p><a href=\"/url2\">foo</a><a href=\"/url1\">baz</a></p>", + "stable/unstable (2)" + ); + + assert_eq!( + micromark("[baz]: /url1\n[foo]: /url2\n\n[foo][bar][baz]"), + "<p>[foo]<a href=\"/url1\">bar</a></p>", + "stable/unstable (3)" + ); + + // Extra + // This matches most implimentations, but is not strictly according to spec. + // See: <https://github.com/commonmark/commonmark-spec/issues/653> + assert_eq!( + micromark("[x]: /url\n\n[x][ ], [x][\t], [x][\n], [x][]"), + "<p>[x][ ], [x][\t], [x][\n], <a href=\"/url\">x</a></p>", + "should not support whitespace-only full references" + ); + + // See also: <https://github.com/commonmark/commonmark-spec/issues/616> + assert_eq!( + micromark("[+]: example.com\n[\\;]: example.com\n\nWill it link? [\\+], [;]"), + "<p>Will it link? [+], [;]</p>", + "should not support mismatched character escapes in shortcuts" + ); + + assert_eq!( + micromark("[©]: example.com\n[&]: example.com\n\nWill it link? [©], [&]"), + "<p>Will it link? [©], [&]</p>", + "should not support mismatched character references in shortcuts" + ); + + assert_eq!( + micromark("[+]: example.com\n[\\;]: example.com\n\nWill it link? [\\+][], [;][]"), + "<p>Will it link? [+][], [;][]</p>", + "should not support mismatched character escapes in collapsed" + ); + + assert_eq!( + micromark("[©]: example.com\n[&]: example.com\n\nWill it link? [©][], [&][]"), + "<p>Will it link? [©][], [&][]</p>", + "should not support mismatched character references in collapsed" + ); + + assert_eq!( + micromark("[+]: example.com\n[\\;]: example.com\n\nWill it link? [a][ \\+ ], [b][ ; ]"), + "<p>Will it link? [a][ + ], [b][ ; ]</p>", + "should not support mismatched character escapes in fulls" + ); + + assert_eq!( + micromark( + "[©]: example.com\n[&]: example.com\n\nWill it link? [a][ © ], [b][ & ]" + ), + "<p>Will it link? [a][ © ], [b][ & ]</p>", + "should not support mismatched character references in fulls" + ); + + // To do: attention. + // assert_eq!( + // micromark( + // "[*f*][] + // [;][] + // [\\;][] + // [;][] + // [*f*;][] + // [*f*\\;][] + // [*f*;][] + + // [*f*]: alpha + // [;]: bravo + // [\\;]: charlie + // [;]: delta + // [*f*;]: echo + // [*f*\\;]: foxtrot + // [*f*;]: golf" + // ), + // "<p><a href=\"alpha\"><em>f</em></a> + // <a href=\"bravo\">;</a> + // <a href=\"charlie\">;</a> + // <a href=\"delta\">;</a> + // <a href=\"echo\"><em>f</em>;</a> + // <a href=\"foxtrot\"><em>f</em>;</a> + // <a href=\"golf\"><em>f</em>;</a></p> + // ", + // "should properly handle labels w/ character references and -escapes, and phrasing" + // ); + + // 999 `x` characters. + let max = "x".repeat(999); + + assert_eq!( + micromark(format!("[{}]: a\n[y][{}]", max, max).as_str()), + "<p><a href=\"a\">y</a></p>", + "should support 999 characters in a reference" + ); + + assert_eq!( + micromark(format!("[{}x]: a\n[y][{}x]", max, max).as_str()), + format!("<p>[{}x]: a\n[y][{}x]</p>", max, max), + "should not support 1000 characters in a reference" + ); + + assert_eq!( + micromark("[x] missing-colon\n\nWill it link? [x]"), + "<p>[x] missing-colon</p>\n<p>Will it link? [x]</p>", + "should not fail on a missing colon in a definition" + ); + + // To do: turning things off. + // assert_eq!( + // micromark("[x]()", {extensions: [{disable: {null: ["labelStartLink"]}}]}), + // "<p>[x]()</p>", + // "should support turning off label start (link)" + // ); + + // To do: turning things off. + // assert_eq!( + // micromark("[x]()", {extensions: [{disable: {null: ["labelEnd"]}}]}), + // "<p>[x]()</p>", + // "should support turning off label end" + // ); +} |