gemini-cli/packages/cli/src/ui/hooks/useGeminiStream.test.tsx

1093 lines
33 KiB
TypeScript

/**
* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
/* eslint-disable @typescript-eslint/no-explicit-any */
import { describe, it, expect, vi, beforeEach, Mock } from 'vitest';
import { renderHook, act, waitFor } from '@testing-library/react';
import { useGeminiStream, mergePartListUnions } from './useGeminiStream.js';
import { useInput } from 'ink';
import {
useReactToolScheduler,
TrackedToolCall,
TrackedCompletedToolCall,
TrackedExecutingToolCall,
TrackedCancelledToolCall,
} from './useReactToolScheduler.js';
import { Config, EditorType, AuthType } from '@google/gemini-cli-core';
import { Part, PartListUnion } from '@google/genai';
import { UseHistoryManagerReturn } from './useHistoryManager.js';
import { HistoryItem, MessageType, StreamingState } from '../types.js';
import { Dispatch, SetStateAction } from 'react';
import { LoadedSettings } from '../../config/settings.js';
// --- MOCKS ---
const mockSendMessageStream = vi
.fn()
.mockReturnValue((async function* () {})());
const mockStartChat = vi.fn();
const MockedGeminiClientClass = vi.hoisted(() =>
vi.fn().mockImplementation(function (this: any, _config: any) {
// _config
this.startChat = mockStartChat;
this.sendMessageStream = mockSendMessageStream;
this.addHistory = vi.fn();
}),
);
const MockedUserPromptEvent = vi.hoisted(() =>
vi.fn().mockImplementation(() => {}),
);
vi.mock('@google/gemini-cli-core', async (importOriginal) => {
const actualCoreModule = (await importOriginal()) as any;
return {
...actualCoreModule,
GitService: vi.fn(),
GeminiClient: MockedGeminiClientClass,
UserPromptEvent: MockedUserPromptEvent,
};
});
const mockUseReactToolScheduler = useReactToolScheduler as Mock;
vi.mock('./useReactToolScheduler.js', async (importOriginal) => {
const actualSchedulerModule = (await importOriginal()) as any;
return {
...(actualSchedulerModule || {}),
useReactToolScheduler: vi.fn(),
};
});
vi.mock('ink', async (importOriginal) => {
const actualInkModule = (await importOriginal()) as any;
return { ...(actualInkModule || {}), useInput: vi.fn() };
});
vi.mock('./shellCommandProcessor.js', () => ({
useShellCommandProcessor: vi.fn().mockReturnValue({
handleShellCommand: vi.fn(),
}),
}));
vi.mock('./atCommandProcessor.js', () => ({
handleAtCommand: vi
.fn()
.mockResolvedValue({ shouldProceed: true, processedQuery: 'mocked' }),
}));
vi.mock('../utils/markdownUtilities.js', () => ({
findLastSafeSplitPoint: vi.fn((s: string) => s.length),
}));
vi.mock('./useStateAndRef.js', () => ({
useStateAndRef: vi.fn((initial) => {
let val = initial;
const ref = { current: val };
const setVal = vi.fn((updater) => {
if (typeof updater === 'function') {
val = updater(val);
} else {
val = updater;
}
ref.current = val;
});
return [ref, setVal];
}),
}));
vi.mock('./useLogger.js', () => ({
useLogger: vi.fn().mockReturnValue({
logMessage: vi.fn().mockResolvedValue(undefined),
}),
}));
const mockStartNewTurn = vi.fn();
const mockAddUsage = vi.fn();
vi.mock('../contexts/SessionContext.js', () => ({
useSessionStats: vi.fn(() => ({
startNewTurn: mockStartNewTurn,
addUsage: mockAddUsage,
})),
}));
vi.mock('./slashCommandProcessor.js', () => ({
handleSlashCommand: vi.fn().mockReturnValue(false),
}));
const mockParseAndFormatApiError = vi.hoisted(() => vi.fn());
vi.mock('../utils/errorParsing.js', () => ({
parseAndFormatApiError: mockParseAndFormatApiError,
}));
// --- END MOCKS ---
describe('mergePartListUnions', () => {
it('should merge multiple PartListUnion arrays', () => {
const list1: PartListUnion = [{ text: 'Hello' }];
const list2: PartListUnion = [
{ inlineData: { mimeType: 'image/png', data: 'abc' } },
];
const list3: PartListUnion = [{ text: 'World' }, { text: '!' }];
const result = mergePartListUnions([list1, list2, list3]);
expect(result).toEqual([
{ text: 'Hello' },
{ inlineData: { mimeType: 'image/png', data: 'abc' } },
{ text: 'World' },
{ text: '!' },
]);
});
it('should handle empty arrays in the input list', () => {
const list1: PartListUnion = [{ text: 'First' }];
const list2: PartListUnion = [];
const list3: PartListUnion = [{ text: 'Last' }];
const result = mergePartListUnions([list1, list2, list3]);
expect(result).toEqual([{ text: 'First' }, { text: 'Last' }]);
});
it('should handle a single PartListUnion array', () => {
const list1: PartListUnion = [
{ text: 'One' },
{ inlineData: { mimeType: 'image/jpeg', data: 'xyz' } },
];
const result = mergePartListUnions([list1]);
expect(result).toEqual(list1);
});
it('should return an empty array if all input arrays are empty', () => {
const list1: PartListUnion = [];
const list2: PartListUnion = [];
const result = mergePartListUnions([list1, list2]);
expect(result).toEqual([]);
});
it('should handle input list being empty', () => {
const result = mergePartListUnions([]);
expect(result).toEqual([]);
});
it('should correctly merge when PartListUnion items are single Parts not in arrays', () => {
const part1: Part = { text: 'Single part 1' };
const part2: Part = { inlineData: { mimeType: 'image/gif', data: 'gif' } };
const listContainingSingleParts: PartListUnion[] = [
part1,
[part2],
{ text: 'Another single part' },
];
const result = mergePartListUnions(listContainingSingleParts);
expect(result).toEqual([
{ text: 'Single part 1' },
{ inlineData: { mimeType: 'image/gif', data: 'gif' } },
{ text: 'Another single part' },
]);
});
it('should handle a mix of arrays and single parts, including empty arrays and undefined/null parts if they were possible (though PartListUnion typing restricts this)', () => {
const list1: PartListUnion = [{ text: 'A' }];
const list2: PartListUnion = [];
const part3: Part = { text: 'B' };
const list4: PartListUnion = [
{ text: 'C' },
{ inlineData: { mimeType: 'text/plain', data: 'D' } },
];
const result = mergePartListUnions([list1, list2, part3, list4]);
expect(result).toEqual([
{ text: 'A' },
{ text: 'B' },
{ text: 'C' },
{ inlineData: { mimeType: 'text/plain', data: 'D' } },
]);
});
it('should preserve the order of parts from the input arrays', () => {
const listA: PartListUnion = [{ text: '1' }, { text: '2' }];
const listB: PartListUnion = [{ text: '3' }];
const listC: PartListUnion = [{ text: '4' }, { text: '5' }];
const result = mergePartListUnions([listA, listB, listC]);
expect(result).toEqual([
{ text: '1' },
{ text: '2' },
{ text: '3' },
{ text: '4' },
{ text: '5' },
]);
});
it('should handle cases where some PartListUnion items are single Parts and others are arrays of Parts', () => {
const singlePart1: Part = { text: 'First single' };
const arrayPart1: Part[] = [
{ text: 'Array item 1' },
{ text: 'Array item 2' },
];
const singlePart2: Part = {
inlineData: { mimeType: 'application/json', data: 'e30=' },
}; // {}
const arrayPart2: Part[] = [{ text: 'Last array item' }];
const result = mergePartListUnions([
singlePart1,
arrayPart1,
singlePart2,
arrayPart2,
]);
expect(result).toEqual([
{ text: 'First single' },
{ text: 'Array item 1' },
{ text: 'Array item 2' },
{ inlineData: { mimeType: 'application/json', data: 'e30=' } },
{ text: 'Last array item' },
]);
});
});
// --- Tests for useGeminiStream Hook ---
describe('useGeminiStream', () => {
let mockAddItem: Mock;
let mockSetShowHelp: Mock;
let mockConfig: Config;
let mockOnDebugMessage: Mock;
let mockHandleSlashCommand: Mock;
let mockScheduleToolCalls: Mock;
let mockCancelAllToolCalls: Mock;
let mockMarkToolsAsSubmitted: Mock;
beforeEach(() => {
vi.clearAllMocks(); // Clear mocks before each test
mockAddItem = vi.fn();
mockSetShowHelp = vi.fn();
// Define the mock for getGeminiClient
const mockGetGeminiClient = vi.fn().mockImplementation(() => {
// MockedGeminiClientClass is defined in the module scope by the previous change.
// It will use the mockStartChat and mockSendMessageStream that are managed within beforeEach.
const clientInstance = new MockedGeminiClientClass(mockConfig);
return clientInstance;
});
mockConfig = {
apiKey: 'test-api-key',
model: 'gemini-pro',
sandbox: false,
targetDir: '/test/dir',
debugMode: false,
question: undefined,
fullContext: false,
coreTools: [],
toolDiscoveryCommand: undefined,
toolCallCommand: undefined,
mcpServerCommand: undefined,
mcpServers: undefined,
userAgent: 'test-agent',
userMemory: '',
geminiMdFileCount: 0,
alwaysSkipModificationConfirmation: false,
vertexai: false,
showMemoryUsage: false,
contextFileName: undefined,
getToolRegistry: vi.fn(
() => ({ getToolSchemaList: vi.fn(() => []) }) as any,
),
getProjectRoot: vi.fn(() => '/test/dir'),
getCheckpointingEnabled: vi.fn(() => false),
getGeminiClient: mockGetGeminiClient,
getUsageStatisticsEnabled: () => true,
getDebugMode: () => false,
addHistory: vi.fn(),
} as unknown as Config;
mockOnDebugMessage = vi.fn();
mockHandleSlashCommand = vi.fn().mockResolvedValue(false);
// Mock return value for useReactToolScheduler
mockScheduleToolCalls = vi.fn();
mockCancelAllToolCalls = vi.fn();
mockMarkToolsAsSubmitted = vi.fn();
// Default mock for useReactToolScheduler to prevent toolCalls being undefined initially
mockUseReactToolScheduler.mockReturnValue([
[], // Default to empty array for toolCalls
mockScheduleToolCalls,
mockCancelAllToolCalls,
mockMarkToolsAsSubmitted,
]);
// Reset mocks for GeminiClient instance methods (startChat and sendMessageStream)
// The GeminiClient constructor itself is mocked at the module level.
mockStartChat.mockClear().mockResolvedValue({
sendMessageStream: mockSendMessageStream,
} as unknown as any); // GeminiChat -> any
mockSendMessageStream
.mockClear()
.mockReturnValue((async function* () {})());
});
const mockLoadedSettings: LoadedSettings = {
merged: { preferredEditor: 'vscode' },
user: { path: '/user/settings.json', settings: {} },
workspace: { path: '/workspace/.gemini/settings.json', settings: {} },
errors: [],
forScope: vi.fn(),
setValue: vi.fn(),
} as unknown as LoadedSettings;
const renderTestHook = (
initialToolCalls: TrackedToolCall[] = [],
geminiClient?: any,
) => {
let currentToolCalls = initialToolCalls;
const setToolCalls = (newToolCalls: TrackedToolCall[]) => {
currentToolCalls = newToolCalls;
};
mockUseReactToolScheduler.mockImplementation(() => [
currentToolCalls,
mockScheduleToolCalls,
mockCancelAllToolCalls,
mockMarkToolsAsSubmitted,
]);
const client = geminiClient || mockConfig.getGeminiClient();
const { result, rerender } = renderHook(
(props: {
client: any;
history: HistoryItem[];
addItem: UseHistoryManagerReturn['addItem'];
setShowHelp: Dispatch<SetStateAction<boolean>>;
config: Config;
onDebugMessage: (message: string) => void;
handleSlashCommand: (
cmd: PartListUnion,
) => Promise<
| import('./slashCommandProcessor.js').SlashCommandActionReturn
| boolean
>;
shellModeActive: boolean;
loadedSettings: LoadedSettings;
toolCalls?: TrackedToolCall[]; // Allow passing updated toolCalls
}) => {
// Update the mock's return value if new toolCalls are passed in props
if (props.toolCalls) {
setToolCalls(props.toolCalls);
}
return useGeminiStream(
props.client,
props.history,
props.addItem,
props.setShowHelp,
props.config,
props.onDebugMessage,
props.handleSlashCommand,
props.shellModeActive,
() => 'vscode' as EditorType,
() => {},
() => Promise.resolve(),
);
},
{
initialProps: {
client,
history: [],
addItem: mockAddItem as unknown as UseHistoryManagerReturn['addItem'],
setShowHelp: mockSetShowHelp,
config: mockConfig,
onDebugMessage: mockOnDebugMessage,
handleSlashCommand: mockHandleSlashCommand as unknown as (
cmd: PartListUnion,
) => Promise<
| import('./slashCommandProcessor.js').SlashCommandActionReturn
| boolean
>,
shellModeActive: false,
loadedSettings: mockLoadedSettings,
toolCalls: initialToolCalls,
},
},
);
return {
result,
rerender,
mockMarkToolsAsSubmitted,
mockSendMessageStream,
client,
};
};
it('should not submit tool responses if not all tool calls are completed', () => {
const toolCalls: TrackedToolCall[] = [
{
request: {
callId: 'call1',
name: 'tool1',
args: {},
isClientInitiated: false,
},
status: 'success',
responseSubmittedToGemini: false,
response: {
callId: 'call1',
responseParts: [{ text: 'tool 1 response' }],
error: undefined,
resultDisplay: 'Tool 1 success display',
},
tool: {
name: 'tool1',
description: 'desc1',
getDescription: vi.fn(),
} as any,
startTime: Date.now(),
endTime: Date.now(),
} as TrackedCompletedToolCall,
{
request: { callId: 'call2', name: 'tool2', args: {} },
status: 'executing',
responseSubmittedToGemini: false,
tool: {
name: 'tool2',
description: 'desc2',
getDescription: vi.fn(),
} as any,
startTime: Date.now(),
liveOutput: '...',
} as TrackedExecutingToolCall,
];
const { mockMarkToolsAsSubmitted, mockSendMessageStream } =
renderTestHook(toolCalls);
// Effect for submitting tool responses depends on toolCalls and isResponding
// isResponding is initially false, so the effect should run.
expect(mockMarkToolsAsSubmitted).not.toHaveBeenCalled();
expect(mockSendMessageStream).not.toHaveBeenCalled(); // submitQuery uses this
});
it('should submit tool responses when all tool calls are completed and ready', async () => {
const toolCall1ResponseParts: PartListUnion = [
{ text: 'tool 1 final response' },
];
const toolCall2ResponseParts: PartListUnion = [
{ text: 'tool 2 final response' },
];
const completedToolCalls: TrackedToolCall[] = [
{
request: {
callId: 'call1',
name: 'tool1',
args: {},
isClientInitiated: false,
},
status: 'success',
responseSubmittedToGemini: false,
response: { callId: 'call1', responseParts: toolCall1ResponseParts },
} as TrackedCompletedToolCall,
{
request: {
callId: 'call2',
name: 'tool2',
args: {},
isClientInitiated: false,
},
status: 'error',
responseSubmittedToGemini: false,
response: { callId: 'call2', responseParts: toolCall2ResponseParts },
} as TrackedCompletedToolCall, // Treat error as a form of completion for submission
];
// 1. On the first render, there are no tool calls.
mockUseReactToolScheduler.mockReturnValue([
[],
mockScheduleToolCalls,
mockMarkToolsAsSubmitted,
]);
const { rerender } = renderHook(() =>
useGeminiStream(
new MockedGeminiClientClass(mockConfig),
[],
mockAddItem,
mockSetShowHelp,
mockConfig,
mockOnDebugMessage,
mockHandleSlashCommand,
false,
() => 'vscode' as EditorType,
() => {},
() => Promise.resolve(),
),
);
// 2. Before the second render, change the mock to return the completed tools.
mockUseReactToolScheduler.mockReturnValue([
completedToolCalls,
mockScheduleToolCalls,
mockMarkToolsAsSubmitted,
]);
// 3. Trigger a re-render. The hook will now receive the completed tools, causing the effect to run.
act(() => {
rerender();
});
await waitFor(() => {
expect(mockMarkToolsAsSubmitted).toHaveBeenCalledTimes(1);
expect(mockSendMessageStream).toHaveBeenCalledTimes(1);
});
const expectedMergedResponse = mergePartListUnions([
toolCall1ResponseParts,
toolCall2ResponseParts,
]);
expect(mockSendMessageStream).toHaveBeenCalledWith(
expectedMergedResponse,
expect.any(AbortSignal),
);
});
it('should handle all tool calls being cancelled', async () => {
const cancelledToolCalls: TrackedToolCall[] = [
{
request: {
callId: '1',
name: 'testTool',
args: {},
isClientInitiated: false,
},
status: 'cancelled',
response: { callId: '1', responseParts: [{ text: 'cancelled' }] },
responseSubmittedToGemini: false,
} as TrackedCancelledToolCall,
];
const client = new MockedGeminiClientClass(mockConfig);
// 1. First render: no tool calls.
mockUseReactToolScheduler.mockReturnValue([
[],
mockScheduleToolCalls,
mockMarkToolsAsSubmitted,
]);
const { rerender } = renderHook(() =>
useGeminiStream(
client,
[],
mockAddItem,
mockSetShowHelp,
mockConfig,
mockOnDebugMessage,
mockHandleSlashCommand,
false,
() => 'vscode' as EditorType,
() => {},
() => Promise.resolve(),
),
);
// 2. Second render: tool calls are now cancelled.
mockUseReactToolScheduler.mockReturnValue([
cancelledToolCalls,
mockScheduleToolCalls,
mockMarkToolsAsSubmitted,
]);
// 3. Trigger the re-render.
act(() => {
rerender();
});
await waitFor(() => {
expect(mockMarkToolsAsSubmitted).toHaveBeenCalledWith(['1']);
expect(client.addHistory).toHaveBeenCalledWith({
role: 'user',
parts: [{ text: 'cancelled' }],
});
// Ensure we do NOT call back to the API
expect(mockSendMessageStream).not.toHaveBeenCalled();
});
});
describe('Session Stats Integration', () => {
it('should call startNewTurn and addUsage for a simple prompt', async () => {
const mockMetadata = { totalTokenCount: 123 };
const mockStream = (async function* () {
yield { type: 'content', value: 'Response' };
yield { type: 'usage_metadata', value: mockMetadata };
})();
mockSendMessageStream.mockReturnValue(mockStream);
const { result } = renderTestHook();
await act(async () => {
await result.current.submitQuery('Hello, world!');
});
expect(mockStartNewTurn).toHaveBeenCalledTimes(1);
expect(mockAddUsage).toHaveBeenCalledTimes(1);
expect(mockAddUsage).toHaveBeenCalledWith(mockMetadata);
});
it('should only call addUsage for a tool continuation prompt', async () => {
const mockMetadata = { totalTokenCount: 456 };
const mockStream = (async function* () {
yield { type: 'content', value: 'Final Answer' };
yield { type: 'usage_metadata', value: mockMetadata };
})();
mockSendMessageStream.mockReturnValue(mockStream);
const { result } = renderTestHook();
await act(async () => {
await result.current.submitQuery([{ text: 'tool response' }], {
isContinuation: true,
});
});
expect(mockStartNewTurn).not.toHaveBeenCalled();
expect(mockAddUsage).toHaveBeenCalledTimes(1);
expect(mockAddUsage).toHaveBeenCalledWith(mockMetadata);
});
it('should not call addUsage if the stream contains no usage metadata', async () => {
// Arrange: A stream that yields content but never a usage_metadata event
const mockStream = (async function* () {
yield { type: 'content', value: 'Some response text' };
})();
mockSendMessageStream.mockReturnValue(mockStream);
const { result } = renderTestHook();
await act(async () => {
await result.current.submitQuery('Query with no usage data');
});
expect(mockStartNewTurn).toHaveBeenCalledTimes(1);
expect(mockAddUsage).not.toHaveBeenCalled();
});
it('should not call startNewTurn for a slash command', async () => {
mockHandleSlashCommand.mockReturnValue(true);
const { result } = renderTestHook();
await act(async () => {
await result.current.submitQuery('/stats');
});
expect(mockStartNewTurn).not.toHaveBeenCalled();
expect(mockSendMessageStream).not.toHaveBeenCalled();
});
});
it('should not flicker streaming state to Idle between tool completion and submission', async () => {
const toolCallResponseParts: PartListUnion = [
{ text: 'tool 1 final response' },
];
const initialToolCalls: TrackedToolCall[] = [
{
request: { callId: 'call1', name: 'tool1', args: {} },
status: 'executing',
responseSubmittedToGemini: false,
tool: {
name: 'tool1',
description: 'desc',
getDescription: vi.fn(),
} as any,
startTime: Date.now(),
} as TrackedExecutingToolCall,
];
const completedToolCalls: TrackedToolCall[] = [
{
...(initialToolCalls[0] as TrackedExecutingToolCall),
status: 'success',
response: {
callId: 'call1',
responseParts: toolCallResponseParts,
error: undefined,
resultDisplay: 'Tool 1 success display',
},
endTime: Date.now(),
} as TrackedCompletedToolCall,
];
const { result, rerender, client } = renderTestHook(initialToolCalls);
// 1. Initial state should be Responding because a tool is executing.
expect(result.current.streamingState).toBe(StreamingState.Responding);
// 2. Rerender with the completed tool call.
// The useEffect should pick this up but hasn't called submitQuery yet.
act(() => {
rerender({
client,
history: [],
addItem: mockAddItem,
setShowHelp: mockSetShowHelp,
config: mockConfig,
onDebugMessage: mockOnDebugMessage,
handleSlashCommand:
mockHandleSlashCommand as unknown as typeof mockHandleSlashCommand,
shellModeActive: false,
loadedSettings: mockLoadedSettings,
// This is the key part of the test: update the toolCalls array
// to simulate the tool finishing.
toolCalls: completedToolCalls,
});
});
// 3. The state should *still* be Responding, not Idle.
// This is because the completed tool's response has not been submitted yet.
expect(result.current.streamingState).toBe(StreamingState.Responding);
// 4. Wait for the useEffect to call submitQuery.
await waitFor(() => {
expect(mockSendMessageStream).toHaveBeenCalledWith(
toolCallResponseParts,
expect.any(AbortSignal),
);
});
// 5. After submission, the state should remain Responding.
expect(result.current.streamingState).toBe(StreamingState.Responding);
});
describe('User Cancellation', () => {
let useInputCallback: (input: string, key: any) => void;
const mockUseInput = useInput as Mock;
beforeEach(() => {
// Capture the callback passed to useInput
mockUseInput.mockImplementation((callback) => {
useInputCallback = callback;
});
});
const simulateEscapeKeyPress = () => {
act(() => {
useInputCallback('', { escape: true });
});
};
it('should cancel an in-progress stream when escape is pressed', async () => {
const mockStream = (async function* () {
yield { type: 'content', value: 'Part 1' };
// Keep the stream open
await new Promise(() => {});
})();
mockSendMessageStream.mockReturnValue(mockStream);
const { result } = renderTestHook();
// Start a query
await act(async () => {
result.current.submitQuery('test query');
});
// Wait for the first part of the response
await waitFor(() => {
expect(result.current.streamingState).toBe(StreamingState.Responding);
});
// Simulate escape key press
simulateEscapeKeyPress();
// Verify cancellation message is added
await waitFor(() => {
expect(mockAddItem).toHaveBeenCalledWith(
{
type: MessageType.INFO,
text: 'Request cancelled.',
},
expect.any(Number),
);
});
// Verify state is reset
expect(result.current.streamingState).toBe(StreamingState.Idle);
});
it('should not do anything if escape is pressed when not responding', () => {
const { result } = renderTestHook();
expect(result.current.streamingState).toBe(StreamingState.Idle);
// Simulate escape key press
simulateEscapeKeyPress();
// No change should happen, no cancellation message
expect(mockAddItem).not.toHaveBeenCalledWith(
expect.objectContaining({
text: 'Request cancelled.',
}),
expect.any(Number),
);
});
it('should prevent further processing after cancellation', async () => {
let continueStream: () => void;
const streamPromise = new Promise<void>((resolve) => {
continueStream = resolve;
});
const mockStream = (async function* () {
yield { type: 'content', value: 'Initial' };
await streamPromise; // Wait until we manually continue
yield { type: 'content', value: ' Canceled' };
})();
mockSendMessageStream.mockReturnValue(mockStream);
const { result } = renderTestHook();
await act(async () => {
result.current.submitQuery('long running query');
});
await waitFor(() => {
expect(result.current.streamingState).toBe(StreamingState.Responding);
});
// Cancel the request
simulateEscapeKeyPress();
// Allow the stream to continue
act(() => {
continueStream();
});
// Wait a bit to see if the second part is processed
await new Promise((resolve) => setTimeout(resolve, 50));
// The text should not have been updated with " Canceled"
const lastCall = mockAddItem.mock.calls.find(
(call) => call[0].type === 'gemini',
);
expect(lastCall?.[0].text).toBe('Initial');
// The final state should be idle after cancellation
expect(result.current.streamingState).toBe(StreamingState.Idle);
});
it('should not cancel if a tool call is in progress (not just responding)', async () => {
const toolCalls: TrackedToolCall[] = [
{
request: { callId: 'call1', name: 'tool1', args: {} },
status: 'executing',
responseSubmittedToGemini: false,
tool: {
name: 'tool1',
description: 'desc1',
getDescription: vi.fn(),
} as any,
startTime: Date.now(),
liveOutput: '...',
} as TrackedExecutingToolCall,
];
const abortSpy = vi.spyOn(AbortController.prototype, 'abort');
const { result } = renderTestHook(toolCalls);
// State is `Responding` because a tool is running
expect(result.current.streamingState).toBe(StreamingState.Responding);
// Try to cancel
simulateEscapeKeyPress();
// Nothing should happen because the state is not `Responding`
expect(abortSpy).not.toHaveBeenCalled();
});
});
describe('Client-Initiated Tool Calls', () => {
it('should execute a client-initiated tool without sending a response to Gemini', async () => {
const clientToolRequest = {
shouldScheduleTool: true,
toolName: 'save_memory',
toolArgs: { fact: 'test fact' },
};
mockHandleSlashCommand.mockResolvedValue(clientToolRequest);
const completedToolCall: TrackedCompletedToolCall = {
request: {
callId: 'client-call-1',
name: clientToolRequest.toolName,
args: clientToolRequest.toolArgs,
isClientInitiated: true,
},
status: 'success',
responseSubmittedToGemini: false,
response: {
callId: 'client-call-1',
responseParts: [{ text: 'Memory saved' }],
resultDisplay: 'Success: Memory saved',
error: undefined,
},
tool: {
name: clientToolRequest.toolName,
description: 'Saves memory',
getDescription: vi.fn(),
} as any,
};
// 1. Initial render state: no tool calls
mockUseReactToolScheduler.mockReturnValue([
[],
mockScheduleToolCalls,
mockMarkToolsAsSubmitted,
]);
const { result, rerender } = renderHook(() =>
useGeminiStream(
new MockedGeminiClientClass(mockConfig),
[],
mockAddItem,
mockSetShowHelp,
mockConfig,
mockOnDebugMessage,
mockHandleSlashCommand,
false,
() => 'vscode' as EditorType,
() => {},
() => Promise.resolve(),
),
);
// --- User runs the slash command ---
await act(async () => {
await result.current.submitQuery('/memory add "test fact"');
});
// The command handler schedules the tool. Now we simulate the tool completing.
// 2. Before the next render, set the mock to return the completed tool.
mockUseReactToolScheduler.mockReturnValue([
[completedToolCall],
mockScheduleToolCalls,
mockMarkToolsAsSubmitted,
]);
// 3. Trigger a re-render to process the completed tool.
act(() => {
rerender();
});
// --- Assert the outcome ---
await waitFor(() => {
// The tool should be marked as submitted locally
expect(mockMarkToolsAsSubmitted).toHaveBeenCalledWith([
'client-call-1',
]);
// Crucially, no message should be sent to the Gemini API
expect(mockSendMessageStream).not.toHaveBeenCalled();
});
});
});
describe('Memory Refresh on save_memory', () => {
it('should call performMemoryRefresh when a save_memory tool call completes successfully', async () => {
const mockPerformMemoryRefresh = vi.fn();
const completedToolCall: TrackedCompletedToolCall = {
request: {
callId: 'save-mem-call-1',
name: 'save_memory',
args: { fact: 'test' },
isClientInitiated: true,
},
status: 'success',
responseSubmittedToGemini: false,
response: {
callId: 'save-mem-call-1',
responseParts: [{ text: 'Memory saved' }],
resultDisplay: 'Success: Memory saved',
error: undefined,
},
tool: {
name: 'save_memory',
description: 'Saves memory',
getDescription: vi.fn(),
} as any,
};
mockUseReactToolScheduler.mockReturnValue([
[completedToolCall],
mockScheduleToolCalls,
mockMarkToolsAsSubmitted,
]);
const { rerender } = renderHook(() =>
useGeminiStream(
new MockedGeminiClientClass(mockConfig),
[],
mockAddItem,
mockSetShowHelp,
mockConfig,
mockOnDebugMessage,
mockHandleSlashCommand,
false,
() => 'vscode' as EditorType,
() => {},
mockPerformMemoryRefresh,
),
);
act(() => {
rerender();
});
await waitFor(() => {
expect(mockPerformMemoryRefresh).toHaveBeenCalledTimes(1);
});
});
});
describe('Error Handling', () => {
it('should call parseAndFormatApiError with the correct authType on stream initialization failure', async () => {
// 1. Setup
const mockError = new Error('Rate limit exceeded');
const mockAuthType = AuthType.LOGIN_WITH_GOOGLE_PERSONAL;
mockParseAndFormatApiError.mockClear();
mockSendMessageStream.mockReturnValue(
(async function* () {
yield { type: 'content', value: '' };
throw mockError;
})(),
);
const testConfig = {
...mockConfig,
getContentGeneratorConfig: vi.fn(() => ({
authType: mockAuthType,
})),
} as unknown as Config;
const { result } = renderHook(() =>
useGeminiStream(
new MockedGeminiClientClass(testConfig),
[],
mockAddItem,
mockSetShowHelp,
testConfig,
mockOnDebugMessage,
mockHandleSlashCommand,
false,
() => 'vscode' as EditorType,
() => {},
() => Promise.resolve(),
),
);
// 2. Action
await act(async () => {
await result.current.submitQuery('test query');
});
// 3. Assertion
await waitFor(() => {
expect(mockParseAndFormatApiError).toHaveBeenCalledWith(
'Rate limit exceeded',
mockAuthType,
);
});
});
});
});