feat(view,tests): query blocks stay code in text the agent did not write

tests/inert.test.ts

@@ -0,0 +1,27 @@
+import { describe, expect, it } from "vitest";
+import { inertFences } from "$lib/panel/fences";
+
+const runs = (language: string) => ["tasks", "dataview"].includes(language);
+
+describe("inertFences", () => {
+  it("turns a query block into code", () => {
+    expect(inertFences("```tasks\nnot done\n```", runs)).toBe(
+      "```text\nnot done\n```"
+    );
+    expect(inertFences("~~~Dataview\nlist\n~~~", runs)).toBe(
+      "~~~text\nlist\n~~~"
+    );
+  });
+
+  it("reaches a block opened inside a list item or a quote", () => {
+    expect(inertFences("+ ```tasks\n+ not done", runs)).toBe(
+      "+ ```text\n+ not done"
+    );
+    expect(inertFences("> 1. ````tasks {x}", runs)).toBe("> 1. ````text {x}");
+  });
+
+  it("leaves ordinary code and closing fences alone", () => {
+    const text = "```python\nprint(1)\n```\ninline `tasks` stays";
+    expect(inertFences(text, runs)).toBe(text);
+  });
+});

tests/obsidian-stub.ts

@@ -34,6 +34,12 @@ export const moment = () => undefined;
 export const requestUrl = () =>
   Promise.reject(new Error("no network in the stub"));
 export const setIcon = () => undefined;
+export const MarkdownPreviewRenderer = {
+  codeBlockPostProcessors: { tasks: () => undefined } as Record<
+    string,
+    unknown
+  >,
+};
 
 function escapeHtml(value: string): string {
   return value