From 5695e1d97c7f8dc0359fe766e66cc687b353842f Mon Sep 17 00:00:00 2001
From: Mark Michaelis <mark.michaelis@coremedia.com>
Date: Mon, 16 Oct 2023 08:51:55 +0200
Subject: [PATCH] test: BBCodeListItem

---
 .../__tests__/BBCodeListItem.test.ts          | 26 +++++++++++++++++++
 .../ckeditor5-bbcode/__tests__/DOMUtils.ts    |  2 +-
 .../src/rules/BBCodeListItem.ts               |  5 +++-
 3 files changed, 31 insertions(+), 2 deletions(-)
 create mode 100644 packages/ckeditor5-bbcode/__tests__/BBCodeListItem.test.ts

diff --git a/packages/ckeditor5-bbcode/__tests__/BBCodeListItem.test.ts b/packages/ckeditor5-bbcode/__tests__/BBCodeListItem.test.ts
new file mode 100644
index 0000000000..755f7a63cb
--- /dev/null
+++ b/packages/ckeditor5-bbcode/__tests__/BBCodeListItem.test.ts
@@ -0,0 +1,26 @@
+import { asHTMLElement, requireHTMLElement } from "./DOMUtils";
+import { bbCodeListItem } from "../src";
+
+describe("BBCodeListItem", () => {
+  describe("Default Configuration", () => {
+    const rule = bbCodeListItem;
+
+    it.each`
+      dataView           | expected
+      ${`<li>TEXT</li>`} | ${`[*] TEXT\n`}
+    `(
+      "$[$#] Should process '$dataView' to '$expected'",
+      ({ dataView, expected }: { dataView: string; expected: string | undefined }) => {
+        const embeddedInListDataView = `<ul>${dataView}</ul>`;
+        const listElement = requireHTMLElement(embeddedInListDataView);
+        const element = asHTMLElement(listElement.firstElementChild);
+        if (!element) {
+          throw new Error(`Test setup error: Could not find the required <li> element: ${embeddedInListDataView}.`);
+        }
+        const content = element.textContent ?? "";
+        const bbCode = rule.toData(element, content);
+        expect(bbCode).toEqual(expected);
+      },
+    );
+  });
+});
diff --git a/packages/ckeditor5-bbcode/__tests__/DOMUtils.ts b/packages/ckeditor5-bbcode/__tests__/DOMUtils.ts
index 43cc29b25d..2eec7ffd19 100644
--- a/packages/ckeditor5-bbcode/__tests__/DOMUtils.ts
+++ b/packages/ckeditor5-bbcode/__tests__/DOMUtils.ts
@@ -3,7 +3,7 @@ import { isHTMLElement } from "@coremedia/ckeditor5-dom-support";
 const parser = new DOMParser();
 const parseHtml = (html: string): Document => parser.parseFromString(html, "text/html");
 const parseFirstElement = (html: string): Element | undefined => parseHtml(html).body.firstElementChild ?? undefined;
-const asHTMLElement = (value: unknown): HTMLElement | undefined => (isHTMLElement(value) ? value : undefined);
+export const asHTMLElement = (value: unknown): HTMLElement | undefined => (isHTMLElement(value) ? value : undefined);
 
 /**
  * Parses the given HTML and returns contained `HTMLElement`.
diff --git a/packages/ckeditor5-bbcode/src/rules/BBCodeListItem.ts b/packages/ckeditor5-bbcode/src/rules/BBCodeListItem.ts
index 4a5d007cda..1c538116c7 100644
--- a/packages/ckeditor5-bbcode/src/rules/BBCodeListItem.ts
+++ b/packages/ckeditor5-bbcode/src/rules/BBCodeListItem.ts
@@ -1,7 +1,7 @@
 import { BBCodeProcessingRule } from "./BBCodeProcessingRule";
 
 /**
- * Maps `<li>` to `[*]`.
+ * Rule that maps `<li>` to `[*]`.
  */
 export class BBCodeListItem implements BBCodeProcessingRule {
   readonly id = "list-item";
@@ -13,4 +13,7 @@ export class BBCodeListItem implements BBCodeProcessingRule {
   }
 }
 
+/**
+ * Rule instance that maps `<li>` to `[*]`.
+ */
 export const bbCodeListItem = new BBCodeListItem();