Add tests for existing behavior and syntax of micromark directive extensions.

Author: DavidAnson

test/link-fragments-inline-directive.md

@@ -0,0 +1,17 @@
+# Link Fragments Inline Directive
+
+## Time 12\:34
+
+[Time](#time-1234)
+
+## Ratio 16\:9
+
+[Ratio](#ratio-169)
+
+## Stock NYSE\:MSFT
+
+[Stock](#stock-nysemsft)
+
+## Spreadsheet A1\:B2
+
+[Spreadsheet](#spreadsheet-a1b2)

test/markdownlint-test-micromark.mjs

@@ -7,10 +7,12 @@ import { newLineRe } from "../helpers/helpers.cjs";
 import { filterByPredicate, filterByTypes } from "../helpers/micromark-helpers.cjs";
 import { getEvents, parse } from "../lib/micromark-parse.mjs";
 
+const normalize = (/** @type {string} */ content) => content.split(newLineRe).join("\n");
+
 const testContent = new Promise((resolve, reject) => {
   fs
     .readFile("./test/every-markdown-syntax.md", "utf8")
-    .then((content) => content.split(newLineRe).join("\n"))
+    .then(normalize)
     .then(resolve, reject);
 });
 
@@ -92,4 +94,10 @@ test.suite(import.meta.url.replace(/^.*?\/(?<name>[^/]*)$/u, "$<name>"), () => {
     t.assert.deepEqual(byPredicate, byTypes);
   });
 
+  test("micromark directive extension syntax", async(t) => {
+    t.plan(1);
+    const tokens = parse(normalize(await fs.readFile("./test/micromark-directive-extension-syntax.md", "utf8")));
+    t.assert.snapshot(stringifySafe(tokens));
+  });
+
 });

test/markdownlint-test-micromark.mjs.snapshot

@@ -21516,6 +21516,13 @@ exports[`markdownlint-test-scenarios.mjs > link-fragments-ignored-pattern-presen
 }
 `;
 
+exports[`markdownlint-test-scenarios.mjs > link-fragments-inline-directive.md 1`] = `
+{
+  "errors": [],
+  "fixed": "# Link Fragments Inline Directive\\n\\n## Time 12\\\\:34\\n\\n[Time](#time-1234)\\n\\n## Ratio 16\\\\:9\\n\\n[Ratio](#ratio-169)\\n\\n## Stock NYSE\\\\:MSFT\\n\\n[Stock](#stock-nysemsft)\\n\\n## Spreadsheet A1\\\\:B2\\n\\n[Spreadsheet](#spreadsheet-a1b2)\\n"
+}
+`;
+
 exports[`markdownlint-test-scenarios.mjs > link-fragments-malformed-uri.md 1`] = `
 {
   "errors": [],
@@ -34993,6 +35000,13 @@ exports[`markdownlint-test-scenarios.mjs > md052-invalid-range-bug.md 1`] = `
 }
 `;
 
+exports[`markdownlint-test-scenarios.mjs > micromark-directive-extension-syntax.md 1`] = `
+{
+  "errors": [],
+  "fixed": "# micromark Directive Extension Syntax\\n\\n## Inline\\n\\n### Valid\\n\\n:name[content]{key=val}\\n\\n:name[content]\\n\\n:name{key=val}\\n\\n:name\\n\\nprefix:name\\n\\n## Leaf Block\\n\\n### Valid\\n\\n::name[content]{key=val}\\n\\n::name[content]\\n\\n::name{key=val}\\n\\n::name\\n\\n### Invalid\\n\\nprefix::name\\n\\n## Container Block\\n\\n### Valid\\n\\n:::name[inline-content]{key=val}\\ncontents\\n:::\\n\\n:::name[inline-content]\\ncontents\\n:::\\n\\n:::name{key=val}\\ncontents\\n:::\\n\\n:::name\\ncontents\\n:::\\n\\n### Invalid\\n\\nprefix:::name[inline-content]{key=val}\\ncontents\\n:::\\n\\n<!-- markdownlint-configure-file { \\"no-duplicate-heading\\": false } -->\\n"
+}
+`;
+
 exports[`markdownlint-test-scenarios.mjs > micromark-regressions.md 1`] = `
 {
   "errors": [],

test/markdownlint-test-scenarios.mjs.snapshot

@@ -1101,7 +1101,7 @@ test.suite(import.meta.url.replace(/^.*?\/(?<name>[^/]*)$/u, "$<name>"), () => {
   });
 
   test("validateJsonUsingConfigSchemaStrict", async(t) => {
-    t.plan(234);
+    t.plan(235);
     // @ts-ignore
     const ajv = new Ajv(ajvOptions);
     const validateSchemaStrict = ajv.compile(configSchemaStrict);

test/markdownlint-test.mjs

@@ -0,0 +1,59 @@
+# micromark Directive Extension Syntax
+
+## Inline
+
+### Valid
+
+:name[content]{key=val}
+
+:name[content]
+
+:name{key=val}
+
+:name
+
+prefix:name
+
+## Leaf Block
+
+### Valid
+
+::name[content]{key=val}
+
+::name[content]
+
+::name{key=val}
+
+::name
+
+### Invalid
+
+prefix::name
+
+## Container Block
+
+### Valid
+
+:::name[inline-content]{key=val}
+contents
+:::
+
+:::name[inline-content]
+contents
+:::
+
+:::name{key=val}
+contents
+:::
+
+:::name
+contents
+:::
+
+### Invalid
+
+prefix:::name[inline-content]{key=val}
+contents
+:::
+
+<!-- markdownlint-configure-file { "no-duplicate-heading": false } -->