expect(built?.structuredInputBytes).toBeGreaterThan(0);

});

it("skips lazy multimodal indexing when the file grows after discovery", async () => {

const tmpDir = getTmpDir();

const target = path.join(tmpDir, "diagram.png");

await fs.writeFile(target, Buffer.from("png"));

const entry = await buildFileEntry(target, tmpDir, multimodal);

await fs.writeFile(target, Buffer.alloc(entry!.size + 32, 1));

await expect(buildMultimodalChunkForIndexing(entry!)).resolves.toBeNull();

});

it("skips lazy multimodal indexing when file bytes change after discovery", async () => {

const tmpDir = getTmpDir();

const target = path.join(tmpDir, "diagram.png");

await fs.writeFile(target, Buffer.from("png"));

const entry = await buildFileEntry(target, tmpDir, multimodal);

await fs.writeFile(target, Buffer.from("gif"));

await expect(buildMultimodalChunkForIndexing(entry!)).resolves.toBeNull();

it("skips lazy multimodal indexing when file state changes after discovery", async () => {

for (const testCase of [

{

name: "grows",

mutate: async (target: string, entrySize: number) => {

await fs.writeFile(target, Buffer.alloc(entrySize + 32, 1));

},

},

{

name: "bytes change",

mutate: async (target: string) => {

await fs.writeFile(target, Buffer.from("gif"));

},

},

] as const) {

const tmpDir = getTmpDir();

const target = path.join(tmpDir, `${testCase.name}.png`);

await fs.writeFile(target, Buffer.from("png"));

const entry = await buildFileEntry(target, tmpDir, multimodal);

expect(entry, testCase.name).not.toBeNull();

await testCase.mutate(target, entry!.size);

await expect(buildMultimodalChunkForIndexing(entry!), testCase.name).resolves.toBeNull();

}

});

});