tests/migration/request-converter-thinking.test.js

import test from 'node:test';
import assert from 'node:assert/strict';

import { convertAnthropicToGoogle } from '../../src/format/request-converter.js';

test('OpenAI Flash high reaches Google as thinkingLevel high', () => {
    const google = convertAnthropicToGoogle({
        model: 'gemini-3.5-flash-low',
        messages: [{ role: 'user', content: 'hello' }],
        max_tokens: 1024,
        reasoning_effort: 'high'
    });

    assert.deepEqual(google.generationConfig.thinkingConfig, {
        includeThoughts: true,
        thinkingLevel: 'high'
    });
    assert.equal('thinkingBudget' in google.generationConfig.thinkingConfig, false);
});

test('Gemini 2.5 uses thinkingBudget', () => {
    const google = convertAnthropicToGoogle({
        model: 'gemini-2.5-flash',
        messages: [{ role: 'user', content: 'hello' }],
        reasoning_effort: 'medium'
    });

    assert.equal(google.generationConfig.thinkingConfig.thinkingBudget, 12288);
});