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decolua--9router/tests/unit/capabilities-opus-context.test.js
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JavaScript

import { describe, expect, it } from "vitest";
import { getCapabilitiesForModel } from "../../open-sse/providers/capabilities.js";
// Claude Opus 4.6+ ships a 1M-token context window (GA, standard pricing).
// The registry exposes dashed ids (claude-opus-4-8, claude-opus-4-7), which
// must resolve to the 1M context + adaptive thinking caps rather than falling
// through to the generic *claude*opus* pattern (200k / budget thinking).
describe("Claude Opus 1M context capabilities", () => {
const expected = {
contextWindow: 1000000,
maxOutput: 128000,
thinkingFormat: "claude-adaptive",
reasoning: true,
vision: true,
search: true,
};
for (const model of [
"claude-opus-4-8",
"claude-opus-4.8",
"claude-opus-4-7",
"claude-opus-4.7",
"claude-opus-4-6",
]) {
it(`resolves ${model} to a 1M context window`, () => {
expect(getCapabilitiesForModel("cc", model)).toMatchObject(expected);
});
}
it("keeps the older Opus 4.5 at the standard 200k context", () => {
expect(getCapabilitiesForModel("cc", "claude-opus-4-5-20251101").contextWindow).toBe(200000);
});
});