chore: import upstream snapshot with attribution

packages/admin/tests/editor/CodeBlockNode.test.ts

@@ -0,0 +1,77 @@
+/**
+ * Tests for the custom CodeBlockExtension (language picker node view).
+ *
+ * Verifies that:
+ *   - The extension keeps the canonical `codeBlock` schema name so existing
+ *     code that calls `editor.isActive("codeBlock")` keeps working.
+ *   - The `language` attribute is settable and round-trips through getJSON.
+ *   - StarterKit's backtick input rule still fires when our extension is
+ *     swapped in (since we extend the base extension rather than replace
+ *     it). We can't drive real keyboard input in jsdom, so we verify the
+ *     rule's regex is registered via the extension's inputRules schema.
+ */
+
+import { Editor } from "@tiptap/core";
+import StarterKit from "@tiptap/starter-kit";
+import { describe, it, expect, beforeEach, afterEach } from "vitest";
+
+import { CodeBlockExtension } from "../../src/components/editor/CodeBlockNode";
+
+describe("CodeBlockExtension", () => {
+	let editor: Editor;
+
+	beforeEach(() => {
+		editor = new Editor({
+			extensions: [
+				StarterKit.configure({
+					heading: { levels: [1, 2, 3] },
+					codeBlock: false,
+				}),
+				CodeBlockExtension,
+			],
+			content: "",
+		});
+	});
+
+	afterEach(() => {
+		editor.destroy();
+	});
+
+	it("registers the codeBlock schema node", () => {
+		expect(editor.schema.nodes.codeBlock).toBeDefined();
+	});
+
+	it("registers under the name 'codeBlock' so isActive lookups keep working", () => {
+		const ext = editor.extensionManager.extensions.find((e) => e.name === "codeBlock");
+		expect(ext).toBeDefined();
+	});
+
+	it("toggleCodeBlock activates the node", () => {
+		editor.commands.toggleCodeBlock();
+		expect(editor.isActive("codeBlock")).toBe(true);
+	});
+
+	it("language attribute round-trips through the editor state", () => {
+		editor.commands.insertContent({
+			type: "codeBlock",
+			attrs: { language: "html" },
+			content: [{ type: "text", text: "<p>hi</p>" }],
+		});
+		const json = editor.getJSON();
+		const node = json.content?.find((n) => n.type === "codeBlock");
+		expect(node).toBeDefined();
+		expect((node as { attrs?: { language?: string } }).attrs?.language).toBe("html");
+	});
+
+	it("updateAttributes can change the language on an existing code block", () => {
+		editor.commands.insertContent({
+			type: "codeBlock",
+			attrs: { language: null },
+			content: [{ type: "text", text: "x" }],
+		});
+		editor.commands.setNodeSelection(0);
+		editor.commands.updateAttributes("codeBlock", { language: "typescript" });
+		const node = editor.getJSON().content?.find((n) => n.type === "codeBlock");
+		expect((node as { attrs?: { language?: string } }).attrs?.language).toBe("typescript");
+	});
+});