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/**
* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import { describe, it, expect } from 'vitest';
import { formatLlmContentForFunctionResponse } from './useToolScheduler.js';
import { Part, PartListUnion } from '@google/genai';
describe('formatLlmContentForFunctionResponse', () => {
it('should handle simple string llmContent', () => {
const llmContent = 'Simple text output';
const { functionResponseJson, additionalParts } =
formatLlmContentForFunctionResponse(llmContent);
expect(functionResponseJson).toEqual({ output: 'Simple text output' });
expect(additionalParts).toEqual([]);
});
it('should handle llmContent as a single Part with text', () => {
const llmContent: Part = { text: 'Text from Part object' };
const { functionResponseJson, additionalParts } =
formatLlmContentForFunctionResponse(llmContent);
expect(functionResponseJson).toEqual({ output: 'Text from Part object' });
expect(additionalParts).toEqual([]);
});
it('should handle llmContent as a PartListUnion array with a single text Part', () => {
const llmContent: PartListUnion = [{ text: 'Text from array' }];
const { functionResponseJson, additionalParts } =
formatLlmContentForFunctionResponse(llmContent);
expect(functionResponseJson).toEqual({ output: 'Text from array' });
expect(additionalParts).toEqual([]);
});
it('should handle llmContent with inlineData', () => {
const llmContent: Part = {
inlineData: { mimeType: 'image/png', data: 'base64...' },
};
const { functionResponseJson, additionalParts } =
formatLlmContentForFunctionResponse(llmContent);
expect(functionResponseJson).toEqual({
status: 'Binary content of type image/png was processed.',
});
expect(additionalParts).toEqual([llmContent]);
});
it('should handle llmContent with fileData', () => {
const llmContent: Part = {
fileData: { mimeType: 'application/pdf', fileUri: 'gs://...' },
};
const { functionResponseJson, additionalParts } =
formatLlmContentForFunctionResponse(llmContent);
expect(functionResponseJson).toEqual({
status: 'Binary content of type application/pdf was processed.',
});
expect(additionalParts).toEqual([llmContent]);
});
it('should handle llmContent as an array of multiple Parts (text and inlineData)', () => {
const llmContent: PartListUnion = [
{ text: 'Some textual description' },
{ inlineData: { mimeType: 'image/jpeg', data: 'base64data...' } },
{ text: 'Another text part' },
];
const { functionResponseJson, additionalParts } =
formatLlmContentForFunctionResponse(llmContent);
expect(functionResponseJson).toEqual({
status: 'Tool execution succeeded.',
});
expect(additionalParts).toEqual(llmContent);
});
it('should handle llmContent as an array with a single inlineData Part', () => {
const llmContent: PartListUnion = [
{ inlineData: { mimeType: 'image/gif', data: 'gifdata...' } },
];
const { functionResponseJson, additionalParts } =
formatLlmContentForFunctionResponse(llmContent);
// When the array is a single Part and that part is inlineData
expect(functionResponseJson).toEqual({
status: 'Binary content of type image/gif was processed.',
});
expect(additionalParts).toEqual(llmContent);
});
it('should handle llmContent as a generic Part (not text, inlineData, or fileData)', () => {
// This case might represent a malformed or unexpected Part type.
// For example, a Part that is just an empty object or has other properties.
const llmContent: Part = { functionCall: { name: 'test', args: {} } }; // Example of a non-standard part for this context
const { functionResponseJson, additionalParts } =
formatLlmContentForFunctionResponse(llmContent);
expect(functionResponseJson).toEqual({
status: 'Tool execution succeeded.',
});
expect(additionalParts).toEqual([llmContent]);
});
it('should handle empty string llmContent', () => {
const llmContent = '';
const { functionResponseJson, additionalParts } =
formatLlmContentForFunctionResponse(llmContent);
expect(functionResponseJson).toEqual({ output: '' });
expect(additionalParts).toEqual([]);
});
it('should handle llmContent as an empty array', () => {
const llmContent: PartListUnion = [];
const { functionResponseJson, additionalParts } =
formatLlmContentForFunctionResponse(llmContent);
expect(functionResponseJson).toEqual({
status: 'Tool execution succeeded.',
});
expect(additionalParts).toEqual([]);
});
it('should handle llmContent as a Part with undefined inlineData/fileData/text', () => {
const llmContent: Part = {}; // An empty part object
const { functionResponseJson, additionalParts } =
formatLlmContentForFunctionResponse(llmContent);
expect(functionResponseJson).toEqual({
status: 'Tool execution succeeded.',
});
expect(additionalParts).toEqual([llmContent]);
});
});
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