add test for #1892

Author: progfay

package.json

@@ -23,7 +23,7 @@
 		"build": "tsdown",
 		"prepare": "npm run build",
 		"test": "node --experimental-default-config-file --test --experimental-test-coverage",
-		"test:update": "npm test -- --experimental-test-snapshots",
+		"test:update": "npm test -- --test-update-snapshots",
 		"lint": "npm run lint:biome && npm run lint:tsc",
 		"lint:biome": "biome check .",
 		"lint:tsc": "tsc -p ./tsconfig.lint.json",

test/line/formula.test.ts

@@ -17,4 +17,11 @@ describe("formula", () => {
 	it("Formula includes [] without tail half-space", ({ assert }) => {
 		assert.snapshot(parse("[$ [x]]", { hasTitle: false }));
 	});
+
+	// ref. https://github.com/progfay/scrapbox-parser/issues/1892
+	it("Formula followed immediately by a decoration notation with trailing spaces", ({
+		assert,
+	}) => {
+		assert.snapshot(parse("[$ 1+1=2][. [link] ]", { hasTitle: false }));
+	});
 });

test/line/formula.test.ts.snapshot

@@ -1,3 +1,19 @@
+exports[`formula > Formula followed immediately by a decoration notation with trailing spaces 1`] = `
+[
+  {
+    "indent": 0,
+    "type": "line",
+    "nodes": [
+      {
+        "type": "formula",
+        "raw": "[$ 1+1=2][. [link] ]",
+        "formula": "1+1=2][. [link]"
+      }
+    ]
+  }
+]
+`;
+
 exports[`formula > Formula includes [] with tail half-space 1`] = `
 [
   {