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Badri Narayanan S
301
tests/test-multiturn-thinking-tools-streaming.cjs
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301
tests/test-multiturn-thinking-tools-streaming.cjs
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/**
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* Multi-Turn Tool Call Test (Streaming)
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*
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* Simulates Claude Code's streaming multi-turn conversation pattern.
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* Same flow as non-streaming but verifies:
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* - SSE events are properly formatted
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* - signature_delta events are present
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* - Thinking blocks accumulate correctly across deltas
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*/
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const http = require('http');
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const BASE_URL = 'localhost';
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const PORT = 8080;
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function streamRequest(body) {
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return new Promise((resolve, reject) => {
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const data = JSON.stringify(body);
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const req = http.request({
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host: BASE_URL,
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port: PORT,
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path: '/v1/messages',
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method: 'POST',
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headers: {
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'Content-Type': 'application/json',
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'x-api-key': 'test',
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'anthropic-version': '2023-06-01',
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'anthropic-beta': 'interleaved-thinking-2025-05-14',
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'Content-Length': Buffer.byteLength(data)
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}
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}, res => {
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const events = [];
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let fullData = '';
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res.on('data', chunk => {
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fullData += chunk.toString();
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});
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res.on('end', () => {
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// Parse SSE events
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const parts = fullData.split('\n\n').filter(e => e.trim());
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for (const part of parts) {
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const lines = part.split('\n');
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const eventLine = lines.find(l => l.startsWith('event:'));
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const dataLine = lines.find(l => l.startsWith('data:'));
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if (eventLine && dataLine) {
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try {
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const eventType = eventLine.replace('event:', '').trim();
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const eventData = JSON.parse(dataLine.replace('data:', '').trim());
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events.push({ type: eventType, data: eventData });
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} catch (e) { }
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}
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}
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// Build content from events
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const content = [];
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let currentBlock = null;
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for (const event of events) {
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if (event.type === 'content_block_start') {
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currentBlock = { ...event.data.content_block };
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if (currentBlock.type === 'thinking') {
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currentBlock.thinking = '';
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currentBlock.signature = '';
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}
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if (currentBlock.type === 'text') currentBlock.text = '';
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} else if (event.type === 'content_block_delta') {
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const delta = event.data.delta;
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if (delta.type === 'thinking_delta' && currentBlock) {
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currentBlock.thinking += delta.thinking || '';
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}
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if (delta.type === 'signature_delta' && currentBlock) {
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currentBlock.signature += delta.signature || '';
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}
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if (delta.type === 'text_delta' && currentBlock) {
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currentBlock.text += delta.text || '';
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}
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if (delta.type === 'input_json_delta' && currentBlock) {
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currentBlock.partial_json = (currentBlock.partial_json || '') + delta.partial_json;
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}
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} else if (event.type === 'content_block_stop') {
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if (currentBlock?.type === 'tool_use' && currentBlock.partial_json) {
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try { currentBlock.input = JSON.parse(currentBlock.partial_json); } catch (e) { }
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delete currentBlock.partial_json;
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}
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if (currentBlock) content.push(currentBlock);
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currentBlock = null;
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}
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}
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// Check for errors
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const errorEvent = events.find(e => e.type === 'error');
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if (errorEvent) {
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resolve({
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content,
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events,
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error: errorEvent.data.error,
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statusCode: res.statusCode,
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raw: fullData
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});
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} else {
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resolve({ content, events, statusCode: res.statusCode, raw: fullData });
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}
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});
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});
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req.on('error', reject);
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req.write(data);
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req.end();
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});
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}
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const tools = [{
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name: 'execute_command',
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description: 'Execute a shell command',
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input_schema: {
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type: 'object',
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properties: {
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command: { type: 'string', description: 'Command to execute' },
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cwd: { type: 'string', description: 'Working directory' }
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},
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required: ['command']
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}
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}];
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function analyzeContent(content) {
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const thinking = content.filter(b => b.type === 'thinking');
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const toolUse = content.filter(b => b.type === 'tool_use');
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const text = content.filter(b => b.type === 'text');
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return {
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thinking,
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toolUse,
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text,
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hasThinking: thinking.length > 0,
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hasToolUse: toolUse.length > 0,
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hasText: text.length > 0,
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thinkingHasSignature: thinking.some(t => t.signature && t.signature.length >= 50)
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};
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}
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function analyzeEvents(events) {
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return {
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messageStart: events.filter(e => e.type === 'message_start').length,
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blockStart: events.filter(e => e.type === 'content_block_start').length,
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blockDelta: events.filter(e => e.type === 'content_block_delta').length,
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blockStop: events.filter(e => e.type === 'content_block_stop').length,
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messageDelta: events.filter(e => e.type === 'message_delta').length,
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messageStop: events.filter(e => e.type === 'message_stop').length,
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thinkingDeltas: events.filter(e => e.data?.delta?.type === 'thinking_delta').length,
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signatureDeltas: events.filter(e => e.data?.delta?.type === 'signature_delta').length,
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textDeltas: events.filter(e => e.data?.delta?.type === 'text_delta').length,
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inputJsonDeltas: events.filter(e => e.data?.delta?.type === 'input_json_delta').length
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};
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}
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async function runTests() {
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console.log('='.repeat(60));
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console.log('MULTI-TURN TOOL CALL TEST (STREAMING)');
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console.log('Simulates Claude Code streaming conversation');
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console.log('='.repeat(60));
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console.log('');
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let messages = [];
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let allPassed = true;
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const results = [];
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// ===== TURN 1: Initial request =====
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console.log('TURN 1: User asks to run a command');
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console.log('-'.repeat(40));
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messages.push({
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role: 'user',
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content: 'Run "ls -la" in the current directory and tell me what files exist.'
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});
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const turn1 = await streamRequest({
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model: 'claude-sonnet-4-5-thinking',
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max_tokens: 4096,
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stream: true,
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tools,
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thinking: { type: 'enabled', budget_tokens: 10000 },
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messages
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});
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if (turn1.error) {
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console.log(` ERROR: ${turn1.error.message}`);
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allPassed = false;
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results.push({ name: 'Turn 1: Streaming request', passed: false });
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} else {
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const content = analyzeContent(turn1.content);
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const events = analyzeEvents(turn1.events);
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console.log(' Content:');
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console.log(` Thinking: ${content.hasThinking ? 'YES' : 'NO'} (${content.thinking.length} blocks)`);
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console.log(` Signature: ${content.thinkingHasSignature ? 'YES' : 'NO'}`);
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console.log(` Tool Use: ${content.hasToolUse ? 'YES' : 'NO'} (${content.toolUse.length} calls)`);
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console.log(' Events:');
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console.log(` message_start: ${events.messageStart}`);
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console.log(` content_block_start/stop: ${events.blockStart}/${events.blockStop}`);
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console.log(` thinking_delta: ${events.thinkingDeltas}`);
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console.log(` signature_delta: ${events.signatureDeltas}`);
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console.log(` input_json_delta: ${events.inputJsonDeltas}`);
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if (content.hasThinking && content.thinking[0].thinking) {
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console.log(` Thinking: "${content.thinking[0].thinking.substring(0, 60)}..."`);
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}
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if (content.hasToolUse) {
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console.log(` Tool: ${content.toolUse[0].name}(${JSON.stringify(content.toolUse[0].input)})`);
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}
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const passed = content.hasThinking && content.thinkingHasSignature &&
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events.signatureDeltas > 0 && content.hasToolUse;
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results.push({ name: 'Turn 1: Thinking + Signature + Tool Use + Events', passed });
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if (!passed) allPassed = false;
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if (content.hasToolUse) {
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messages.push({ role: 'assistant', content: turn1.content });
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}
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}
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// ===== TURN 2: Provide tool result =====
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if (messages.length >= 2) {
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console.log('\nTURN 2: Provide command output, expect summary');
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console.log('-'.repeat(40));
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const lastAssistant = messages[messages.length - 1];
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const toolUseBlock = lastAssistant.content.find(b => b.type === 'tool_use');
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messages.push({
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role: 'user',
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content: [{
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type: 'tool_result',
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tool_use_id: toolUseBlock.id,
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content: `total 32
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drwxr-xr-x 10 user staff 320 Dec 19 10:00 .
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drwxr-xr-x 5 user staff 160 Dec 19 09:00 ..
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-rw-r--r-- 1 user staff 1024 Dec 19 10:00 package.json
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-rw-r--r-- 1 user staff 2048 Dec 19 10:00 README.md
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drwxr-xr-x 8 user staff 256 Dec 19 10:00 src
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drwxr-xr-x 4 user staff 128 Dec 19 10:00 tests`
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}]
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});
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const turn2 = await streamRequest({
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model: 'claude-sonnet-4-5-thinking',
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max_tokens: 4096,
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stream: true,
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tools,
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thinking: { type: 'enabled', budget_tokens: 10000 },
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messages
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});
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if (turn2.error) {
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console.log(` ERROR: ${turn2.error.message}`);
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allPassed = false;
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results.push({ name: 'Turn 2: After tool result', passed: false });
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} else {
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const content = analyzeContent(turn2.content);
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const events = analyzeEvents(turn2.events);
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console.log(' Content:');
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console.log(` Thinking: ${content.hasThinking ? 'YES' : 'NO'} (${content.thinking.length} blocks)`);
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console.log(` Signature: ${content.thinkingHasSignature ? 'YES' : 'NO'}`);
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console.log(` Text: ${content.hasText ? 'YES' : 'NO'}`);
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console.log(' Events:');
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console.log(` thinking_delta: ${events.thinkingDeltas}`);
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console.log(` signature_delta: ${events.signatureDeltas}`);
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console.log(` text_delta: ${events.textDeltas}`);
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if (content.hasText && content.text[0].text) {
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console.log(` Response: "${content.text[0].text.substring(0, 100)}..."`);
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}
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const passed = content.hasThinking && content.hasText && events.textDeltas > 0;
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results.push({ name: 'Turn 2: Thinking + Text response', passed });
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if (!passed) allPassed = false;
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}
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}
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// ===== Summary =====
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console.log('\n' + '='.repeat(60));
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console.log('SUMMARY');
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console.log('='.repeat(60));
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for (const result of results) {
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const status = result.passed ? 'PASS' : 'FAIL';
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console.log(` [${status}] ${result.name}`);
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}
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console.log('\n' + '='.repeat(60));
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console.log(`OVERALL: ${allPassed ? 'ALL TESTS PASSED' : 'SOME TESTS FAILED'}`);
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console.log('='.repeat(60));
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process.exit(allPassed ? 0 : 1);
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}
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runTests().catch(err => {
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console.error('Test failed with error:', err);
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process.exit(1);
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});
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