Files
gemini-cli/packages/core/src/utils/generateContentResponseUtilities.test.ts

676 lines
20 KiB
TypeScript

/**
* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import { describe, it, expect } from 'vitest';
import {
getResponseTextFromParts,
getFunctionCalls,
getFunctionCallsFromParts,
getFunctionCallsAsJson,
getFunctionCallsFromPartsAsJson,
getStructuredResponse,
getStructuredResponseFromParts,
getCitations,
convertToFunctionResponse,
} from './generateContentResponseUtilities.js';
import type {
GenerateContentResponse,
Part,
SafetyRating,
CitationMetadata,
PartListUnion,
} from '@google/genai';
import { FinishReason } from '@google/genai';
import {
DEFAULT_GEMINI_MODEL,
PREVIEW_GEMINI_MODEL,
} from '../config/models.js';
const mockTextPart = (text: string): Part => ({ text });
const mockFunctionCallPart = (
name: string,
args?: Record<string, unknown>,
): Part => ({
functionCall: { name, args: args ?? {} },
});
const mockResponse = (
parts: Part[],
finishReason: FinishReason = FinishReason.STOP,
safetyRatings: SafetyRating[] = [],
citationMetadata?: CitationMetadata,
): GenerateContentResponse => ({
candidates: [
{
content: {
parts,
role: 'model',
},
index: 0,
finishReason,
safetyRatings,
citationMetadata,
},
],
promptFeedback: {
safetyRatings: [],
},
text: undefined,
data: undefined,
functionCalls: undefined,
executableCode: undefined,
codeExecutionResult: undefined,
});
const minimalMockResponse = (
candidates: GenerateContentResponse['candidates'],
): GenerateContentResponse => ({
candidates,
promptFeedback: { safetyRatings: [] },
text: undefined,
data: undefined,
functionCalls: undefined,
executableCode: undefined,
codeExecutionResult: undefined,
});
describe('generateContentResponseUtilities', () => {
describe('convertToFunctionResponse', () => {
const toolName = 'testTool';
const callId = 'call1';
it('should handle simple string llmContent', () => {
const llmContent = 'Simple text output';
const result = convertToFunctionResponse(
toolName,
callId,
llmContent,
DEFAULT_GEMINI_MODEL,
);
expect(result).toEqual([
{
functionResponse: {
name: toolName,
id: callId,
response: { output: 'Simple text output' },
},
},
]);
});
it('should handle llmContent as a single Part with text', () => {
const llmContent: Part = { text: 'Text from Part object' };
const result = convertToFunctionResponse(
toolName,
callId,
llmContent,
DEFAULT_GEMINI_MODEL,
);
expect(result).toEqual([
{
functionResponse: {
name: toolName,
id: callId,
response: { output: 'Text from Part object' },
},
},
]);
});
it('should handle llmContent as a PartListUnion array with a single text Part', () => {
const llmContent: PartListUnion = [{ text: 'Text from array' }];
const result = convertToFunctionResponse(
toolName,
callId,
llmContent,
DEFAULT_GEMINI_MODEL,
);
expect(result).toEqual([
{
functionResponse: {
name: toolName,
id: callId,
response: { output: 'Text from array' },
},
},
]);
});
it('should handle llmContent as a PartListUnion array with multiple Parts', () => {
const llmContent: PartListUnion = [{ text: 'part1' }, { text: 'part2' }];
const result = convertToFunctionResponse(
toolName,
callId,
llmContent,
DEFAULT_GEMINI_MODEL,
);
expect(result).toEqual([
{
functionResponse: {
name: toolName,
id: callId,
response: { output: 'part1\npart2' },
},
},
]);
});
it('should handle llmContent with fileData for Gemini 3 model (should be siblings)', () => {
const llmContent: Part = {
fileData: { mimeType: 'application/pdf', fileUri: 'gs://...' },
};
const result = convertToFunctionResponse(
toolName,
callId,
llmContent,
PREVIEW_GEMINI_MODEL,
);
expect(result).toEqual([
{
functionResponse: {
name: toolName,
id: callId,
response: { output: 'Binary content provided (1 item(s)).' },
},
},
llmContent,
]);
});
it('should handle llmContent with inlineData for Gemini 3 model (should be nested)', () => {
const llmContent: Part = {
inlineData: { mimeType: 'image/png', data: 'base64...' },
};
const result = convertToFunctionResponse(
toolName,
callId,
llmContent,
PREVIEW_GEMINI_MODEL,
);
expect(result).toEqual([
{
functionResponse: {
name: toolName,
id: callId,
response: { output: 'Binary content provided (1 item(s)).' },
parts: [llmContent],
},
},
]);
});
it('should handle llmContent with fileData for non-Gemini 3 models', () => {
const llmContent: Part = {
fileData: { mimeType: 'application/pdf', fileUri: 'gs://...' },
};
const result = convertToFunctionResponse(
toolName,
callId,
llmContent,
DEFAULT_GEMINI_MODEL,
);
expect(result).toEqual([
{
functionResponse: {
name: toolName,
id: callId,
response: { output: 'Binary content provided (1 item(s)).' },
},
},
llmContent,
]);
});
it('should preserve existing functionResponse metadata', () => {
const innerId = 'inner-call-id';
const innerName = 'inner-tool-name';
const responseMetadata = {
flags: ['flag1'],
isError: false,
customData: { key: 'value' },
};
const input: Part = {
functionResponse: {
id: innerId,
name: innerName,
response: responseMetadata,
},
};
const result = convertToFunctionResponse(
toolName,
callId,
input,
DEFAULT_GEMINI_MODEL,
);
expect(result).toHaveLength(1);
expect(result[0].functionResponse).toEqual({
id: callId,
name: toolName,
response: responseMetadata,
});
});
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 result = convertToFunctionResponse(
toolName,
callId,
llmContent,
PREVIEW_GEMINI_MODEL,
);
expect(result).toEqual([
{
functionResponse: {
name: toolName,
id: callId,
response: {
output: 'Some textual description\nAnother text part',
},
parts: [
{
inlineData: { mimeType: 'image/jpeg', data: 'base64data...' },
},
],
},
},
]);
});
it('should handle llmContent as an array with a single inlineData Part', () => {
const llmContent: PartListUnion = [
{ inlineData: { mimeType: 'image/gif', data: 'gifdata...' } },
];
const result = convertToFunctionResponse(
toolName,
callId,
llmContent,
PREVIEW_GEMINI_MODEL,
);
expect(result).toEqual([
{
functionResponse: {
name: toolName,
id: callId,
response: { output: 'Binary content provided (1 item(s)).' },
parts: llmContent,
},
},
]);
});
it('should handle llmContent as a generic Part (not text, inlineData, or fileData)', () => {
const llmContent: Part = { functionCall: { name: 'test', args: {} } };
const result = convertToFunctionResponse(
toolName,
callId,
llmContent,
PREVIEW_GEMINI_MODEL,
);
expect(result).toEqual([
{
functionResponse: {
name: toolName,
id: callId,
response: {},
},
},
]);
});
it('should handle empty string llmContent', () => {
const llmContent = '';
const result = convertToFunctionResponse(
toolName,
callId,
llmContent,
PREVIEW_GEMINI_MODEL,
);
expect(result).toEqual([
{
functionResponse: {
name: toolName,
id: callId,
response: { output: '' },
},
},
]);
});
it('should handle llmContent as an empty array', () => {
const llmContent: PartListUnion = [];
const result = convertToFunctionResponse(
toolName,
callId,
llmContent,
PREVIEW_GEMINI_MODEL,
);
expect(result).toEqual([
{
functionResponse: {
name: toolName,
id: callId,
response: {},
},
},
]);
});
it('should handle llmContent as a Part with undefined inlineData/fileData/text', () => {
const llmContent: Part = {}; // An empty part object
const result = convertToFunctionResponse(
toolName,
callId,
llmContent,
PREVIEW_GEMINI_MODEL,
);
expect(result).toEqual([
{
functionResponse: {
name: toolName,
id: callId,
response: {},
},
},
]);
});
});
describe('getCitations', () => {
it('should return empty array for no candidates', () => {
expect(getCitations(minimalMockResponse(undefined))).toEqual([]);
});
it('should return empty array if no citationMetadata', () => {
const response = mockResponse([mockTextPart('Hello')]);
expect(getCitations(response)).toEqual([]);
});
it('should return citations with title and uri', () => {
const citationMetadata: CitationMetadata = {
citations: [
{
startIndex: 0,
endIndex: 10,
uri: 'https://example.com',
title: 'Example Title',
},
],
};
const response = mockResponse(
[mockTextPart('Hello')],
undefined,
undefined,
citationMetadata,
);
expect(getCitations(response)).toEqual([
'(Example Title) https://example.com',
]);
});
it('should return citations with uri only if no title', () => {
const citationMetadata: CitationMetadata = {
citations: [
{
startIndex: 0,
endIndex: 10,
uri: 'https://example.com',
},
],
};
const response = mockResponse(
[mockTextPart('Hello')],
undefined,
undefined,
citationMetadata,
);
expect(getCitations(response)).toEqual(['https://example.com']);
});
it('should filter out citations without uri', () => {
const citationMetadata: CitationMetadata = {
citations: [
{
startIndex: 0,
endIndex: 10,
title: 'No URI',
},
{
startIndex: 10,
endIndex: 20,
uri: 'https://valid.com',
},
],
};
const response = mockResponse(
[mockTextPart('Hello')],
undefined,
undefined,
citationMetadata,
);
expect(getCitations(response)).toEqual(['https://valid.com']);
});
});
describe('getResponseTextFromParts', () => {
it('should return undefined for no parts', () => {
expect(getResponseTextFromParts([])).toBeUndefined();
});
it('should extract text from a single text part', () => {
expect(getResponseTextFromParts([mockTextPart('Hello')])).toBe('Hello');
});
it('should concatenate text from multiple text parts', () => {
expect(
getResponseTextFromParts([
mockTextPart('Hello '),
mockTextPart('World'),
]),
).toBe('Hello World');
});
it('should ignore function call parts', () => {
expect(
getResponseTextFromParts([
mockTextPart('Hello '),
mockFunctionCallPart('testFunc'),
mockTextPart('World'),
]),
).toBe('Hello World');
});
it('should return undefined if only function call parts exist', () => {
expect(
getResponseTextFromParts([
mockFunctionCallPart('testFunc'),
mockFunctionCallPart('anotherFunc'),
]),
).toBeUndefined();
});
});
describe('getFunctionCalls', () => {
it('should return undefined for no candidates', () => {
expect(getFunctionCalls(minimalMockResponse(undefined))).toBeUndefined();
});
it('should return undefined for empty candidates array', () => {
expect(getFunctionCalls(minimalMockResponse([]))).toBeUndefined();
});
it('should return undefined for no parts', () => {
const response = mockResponse([]);
expect(getFunctionCalls(response)).toBeUndefined();
});
it('should extract a single function call', () => {
const func = { name: 'testFunc', args: { a: 1 } };
const response = mockResponse([
mockFunctionCallPart(func.name, func.args),
]);
expect(getFunctionCalls(response)).toEqual([func]);
});
it('should extract multiple function calls', () => {
const func1 = { name: 'testFunc1', args: { a: 1 } };
const func2 = { name: 'testFunc2', args: { b: 2 } };
const response = mockResponse([
mockFunctionCallPart(func1.name, func1.args),
mockFunctionCallPart(func2.name, func2.args),
]);
expect(getFunctionCalls(response)).toEqual([func1, func2]);
});
it('should ignore text parts', () => {
const func = { name: 'testFunc', args: { a: 1 } };
const response = mockResponse([
mockTextPart('Some text'),
mockFunctionCallPart(func.name, func.args),
mockTextPart('More text'),
]);
expect(getFunctionCalls(response)).toEqual([func]);
});
it('should return undefined if only text parts exist', () => {
const response = mockResponse([
mockTextPart('Some text'),
mockTextPart('More text'),
]);
expect(getFunctionCalls(response)).toBeUndefined();
});
});
describe('getFunctionCallsFromParts', () => {
it('should return undefined for no parts', () => {
expect(getFunctionCallsFromParts([])).toBeUndefined();
});
it('should extract a single function call', () => {
const func = { name: 'testFunc', args: { a: 1 } };
expect(
getFunctionCallsFromParts([mockFunctionCallPart(func.name, func.args)]),
).toEqual([func]);
});
it('should extract multiple function calls', () => {
const func1 = { name: 'testFunc1', args: { a: 1 } };
const func2 = { name: 'testFunc2', args: { b: 2 } };
expect(
getFunctionCallsFromParts([
mockFunctionCallPart(func1.name, func1.args),
mockFunctionCallPart(func2.name, func2.args),
]),
).toEqual([func1, func2]);
});
it('should ignore text parts', () => {
const func = { name: 'testFunc', args: { a: 1 } };
expect(
getFunctionCallsFromParts([
mockTextPart('Some text'),
mockFunctionCallPart(func.name, func.args),
mockTextPart('More text'),
]),
).toEqual([func]);
});
it('should return undefined if only text parts exist', () => {
expect(
getFunctionCallsFromParts([
mockTextPart('Some text'),
mockTextPart('More text'),
]),
).toBeUndefined();
});
});
describe('getFunctionCallsAsJson', () => {
it('should return JSON string of function calls', () => {
const func1 = { name: 'testFunc1', args: { a: 1 } };
const func2 = { name: 'testFunc2', args: { b: 2 } };
const response = mockResponse([
mockFunctionCallPart(func1.name, func1.args),
mockTextPart('text in between'),
mockFunctionCallPart(func2.name, func2.args),
]);
const expectedJson = JSON.stringify([func1, func2], null, 2);
expect(getFunctionCallsAsJson(response)).toBe(expectedJson);
});
it('should return undefined if no function calls', () => {
const response = mockResponse([mockTextPart('Hello')]);
expect(getFunctionCallsAsJson(response)).toBeUndefined();
});
});
describe('getFunctionCallsFromPartsAsJson', () => {
it('should return JSON string of function calls from parts', () => {
const func1 = { name: 'testFunc1', args: { a: 1 } };
const func2 = { name: 'testFunc2', args: { b: 2 } };
const parts = [
mockFunctionCallPart(func1.name, func1.args),
mockTextPart('text in between'),
mockFunctionCallPart(func2.name, func2.args),
];
const expectedJson = JSON.stringify([func1, func2], null, 2);
expect(getFunctionCallsFromPartsAsJson(parts)).toBe(expectedJson);
});
it('should return undefined if no function calls in parts', () => {
const parts = [mockTextPart('Hello')];
expect(getFunctionCallsFromPartsAsJson(parts)).toBeUndefined();
});
});
describe('getStructuredResponse', () => {
it('should return only text if only text exists', () => {
const response = mockResponse([mockTextPart('Hello World')]);
expect(getStructuredResponse(response)).toBe('Hello World');
});
it('should return only function call JSON if only function calls exist', () => {
const func = { name: 'testFunc', args: { data: 'payload' } };
const response = mockResponse([
mockFunctionCallPart(func.name, func.args),
]);
const expectedJson = JSON.stringify([func], null, 2);
expect(getStructuredResponse(response)).toBe(expectedJson);
});
it('should return text and function call JSON if both exist', () => {
const text = 'Consider this data:';
const func = { name: 'processData', args: { item: 42 } };
const response = mockResponse([
mockTextPart(text),
mockFunctionCallPart(func.name, func.args),
]);
const expectedJson = JSON.stringify([func], null, 2);
expect(getStructuredResponse(response)).toBe(`${text}\n${expectedJson}`);
});
it('should return undefined if neither text nor function calls exist', () => {
const response = mockResponse([]);
expect(getStructuredResponse(response)).toBeUndefined();
});
});
describe('getStructuredResponseFromParts', () => {
it('should return only text if only text exists in parts', () => {
const parts = [mockTextPart('Hello World')];
expect(getStructuredResponseFromParts(parts)).toBe('Hello World');
});
it('should return only function call JSON if only function calls exist in parts', () => {
const func = { name: 'testFunc', args: { data: 'payload' } };
const parts = [mockFunctionCallPart(func.name, func.args)];
const expectedJson = JSON.stringify([func], null, 2);
expect(getStructuredResponseFromParts(parts)).toBe(expectedJson);
});
it('should return text and function call JSON if both exist in parts', () => {
const text = 'Consider this data:';
const func = { name: 'processData', args: { item: 42 } };
const parts = [
mockTextPart(text),
mockFunctionCallPart(func.name, func.args),
];
const expectedJson = JSON.stringify([func], null, 2);
expect(getStructuredResponseFromParts(parts)).toBe(
`${text}\n${expectedJson}`,
);
});
it('should return undefined if neither text nor function calls exist in parts', () => {
const parts: Part[] = [];
expect(getStructuredResponseFromParts(parts)).toBeUndefined();
});
});
});