NATSBridge/test/test_js_binary_receiver.js

/**
 * JavaScript Binary Receiver Test
 * Tests the smartreceive function with binary/image/audio/video payloads
 */

const NATSBridge = require('../src/natsbridge.js');

const TEST_BROKER_URL = process.env.NATS_URL || 'nats://localhost:4222';
const TEST_FILESERVER_URL = process.env.FILESERVER_URL || 'http://localhost:8080';

async function runTest() {
    console.log('=== JavaScript Binary Receiver Test ===\n');
    
    // Create mock NATS message with binary payloads
    const binaryData = Buffer.from([0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A]); // PNG header
    const audioData = Buffer.from([0x46, 0x4C, 0x41, 0x43, 0x00, 0x00, 0x00, 0x00]); // FLAC header
    const videoData = Buffer.from([0x00, 0x00, 0x00, 0x18, 0x66, 0x74, 0x79, 0x70]); // MP4 header
    const genericBinary = Buffer.from([0xDE, 0xAD, 0xBE, 0xEF, 0xCA, 0xFE, 0xBA, 0xBE]);
    
    const testData = {
        correlation_id: 'js-binary-receiver-' + Date.now(),
        msg_id: 'msg-' + Date.now(),
        timestamp: new Date().toISOString(),
        send_to: '/test/binary',
        msg_purpose: 'test',
        sender_name: 'js-binary-test',
        sender_id: 'sender-' + Date.now(),
        receiver_name: 'js-receiver',
        receiver_id: 'receiver-' + Date.now(),
        reply_to: '',
        reply_to_msg_id: '',
        broker_url: TEST_BROKER_URL,
        metadata: {},
        payloads: [
            {
                id: 'payload-1',
                dataname: 'image',
                payload_type: 'image',
                transport: 'direct',
                encoding: 'base64',
                size: binaryData.length,
                data: binaryData.toString('base64'),
                metadata: { payload_bytes: binaryData.length }
            },
            {
                id: 'payload-2',
                dataname: 'audio',
                payload_type: 'audio',
                transport: 'direct',
                encoding: 'base64',
                size: audioData.length,
                data: audioData.toString('base64'),
                metadata: { payload_bytes: audioData.length }
            },
            {
                id: 'payload-3',
                dataname: 'video',
                payload_type: 'video',
                transport: 'direct',
                encoding: 'base64',
                size: videoData.length,
                data: videoData.toString('base64'),
                metadata: { payload_bytes: videoData.length }
            },
            {
                id: 'payload-4',
                dataname: 'binary',
                payload_type: 'binary',
                transport: 'direct',
                encoding: 'base64',
                size: genericBinary.length,
                data: genericBinary.toString('base64'),
                metadata: { payload_bytes: genericBinary.length }
            }
        ]
    };
    
    const mockMsg = {
        payload: JSON.stringify(testData)
    };
    
    console.log('Mock Message Created:');
    console.log(`  Correlation ID: ${testData.correlation_id}`);
    console.log(`  Payloads: ${testData.payloads.length}`);
    console.log(`  Payload types: ${testData.payloads.map(p => p.payload_type).join(', ')}\n`);
    
    try {
        // Receive and process the message
        console.log('Receiving and processing message...');
        const env = await NATSBridge.smartreceive(
            mockMsg,
            {
                max_retries: 3,
                base_delay: 100,
                max_delay: 1000
            }
        );
        
        console.log('\n=== Received Envelope ===');
        console.log(`Correlation ID: ${env.correlation_id}`);
        console.log(`Message ID: ${env.msg_id}`);
        console.log(`Timestamp: ${env.timestamp}`);
        console.log(`Subject: ${env.send_to}`);
        console.log(`Payloads: ${env.payloads.length}\n`);
        
        // Validate received data
        console.log('=== Validation ===');
        let passed = true;
        
        if (!env.correlation_id) {
            console.log('❌ correlation_id is missing');
            passed = false;
        } else {
            console.log('✅ correlation_id present');
        }
        
        if (env.payloads.length !== 4) {
            console.log(`❌ Expected 4 payloads, got ${env.payloads.length}`);
            passed = false;
        } else {
            console.log('✅ Correct number of payloads');
        }
        
        // Expected data
        const expectedData = [
            ['image', binaryData, 'image'],
            ['audio', audioData, 'audio'],
            ['video', videoData, 'video'],
            ['binary', genericBinary, 'binary']
        ];
        
        for (let i = 0; i < env.payloads.length; i++) {
            const payload = env.payloads[i];
            const expected = expectedData[i];
            
            if (payload[0] !== expected[0]) {
                console.log(`❌ Payload ${i + 1}: Expected dataname '${expected[0]}', got '${payload[0]}'`);
                passed = false;
            } else {
                console.log(`✅ Payload ${i + 1}: Correct dataname`);
            }
            
            if (payload[2] !== expected[2]) {
                console.log(`❌ Payload ${i + 1}: Expected type '${expected[2]}', got '${payload[2]}'`);
                passed = false;
            } else {
                console.log(`✅ Payload ${i + 1}: Correct type`);
            }
            
            // Verify binary data integrity
            const receivedData = payload[1];
            if (!(receivedData instanceof Buffer || receivedData instanceof Uint8Array)) {
                console.log(`❌ Payload ${i + 1}: Expected Buffer/Uint8Array, got ${typeof receivedData}`);
                passed = false;
            } else if (Buffer.isBuffer(receivedData)) {
                if (receivedData.length !== expected[1].length) {
                    console.log(`❌ Payload ${i + 1}: Length mismatch`);
                    passed = false;
                } else {
                    let dataMatch = true;
                    for (let j = 0; j < expected[1].length; j++) {
                        if (receivedData[j] !== expected[1][j]) {
                            dataMatch = false;
                            break;
                        }
                    }
                    if (dataMatch) {
                        console.log(`✅ Payload ${i + 1}: Data correctly deserialized`);
                    } else {
                        console.log(`❌ Payload ${i + 1}: Data mismatch`);
                        passed = false;
                    }
                }
            } else {
                // Uint8Array comparison
                const receivedBuffer = Buffer.from(receivedData);
                if (receivedBuffer.length !== expected[1].length) {
                    console.log(`❌ Payload ${i + 1}: Length mismatch`);
                    passed = false;
                } else {
                    let dataMatch = true;
                    for (let j = 0; j < expected[1].length; j++) {
                        if (receivedBuffer[j] !== expected[1][j]) {
                            dataMatch = false;
                            break;
                        }
                    }
                    if (dataMatch) {
                        console.log(`✅ Payload ${i + 1}: Data correctly deserialized`);
                    } else {
                        console.log(`❌ Payload ${i + 1}: Data mismatch`);
                        passed = false;
                    }
                }
            }
        }
        
        // Final result
        console.log('\n=== Test Result ===');
        if (passed) {
            console.log('✅ ALL TESTS PASSED');
            process.exit(0);
        } else {
            console.log('❌ SOME TESTS FAILED');
            process.exit(1);
        }
        
    } catch (error) {
        console.error('❌ Test failed with error:', error.message);
        console.error(error.stack);
        process.exit(1);
    }
}

runTest();