feat(smartshell): Add secure spawn APIs, PTY support, interactive/streaming control, timeouts and buffer limits; update README and tests

test/test.spawn.ts

@@ -0,0 +1,150 @@
+import { expect, tap } from '@git.zone/tstest/tapbundle';
+import * as smartshell from '../ts/index.js';
+
+tap.test('execSpawn should execute commands with args array (shell:false)', async () => {
+  const testSmartshell = new smartshell.Smartshell({
+    executor: 'bash',
+    sourceFilePaths: [],
+  });
+  
+  // Test basic command with args
+  const result = await testSmartshell.execSpawn('echo', ['Hello', 'World']);
+  expect(result.exitCode).toEqual(0);
+  expect(result.stdout).toContain('Hello World');
+});
+
+tap.test('execSpawn should handle command not found errors', async () => {
+  const testSmartshell = new smartshell.Smartshell({
+    executor: 'bash',
+    sourceFilePaths: [],
+  });
+  
+  let errorThrown = false;
+  try {
+    await testSmartshell.execSpawn('nonexistentcommand123', ['arg1']);
+  } catch (error) {
+    errorThrown = true;
+    expect(error.code).toEqual('ENOENT');
+  }
+  expect(errorThrown).toBeTrue();
+});
+
+tap.test('execSpawn should properly escape arguments', async () => {
+  const testSmartshell = new smartshell.Smartshell({
+    executor: 'bash',
+    sourceFilePaths: [],
+  });
+  
+  // Test that shell metacharacters are treated as literals
+  const result = await testSmartshell.execSpawn('echo', ['$HOME', '&&', 'ls']);
+  expect(result.exitCode).toEqual(0);
+  // Should output literal strings, not expanded/executed
+  expect(result.stdout).toContain('$HOME && ls');
+});
+
+tap.test('execSpawn streaming should work', async () => {
+  const testSmartshell = new smartshell.Smartshell({
+    executor: 'bash',
+    sourceFilePaths: [],
+  });
+  
+  const streaming = await testSmartshell.execSpawnStreaming('echo', ['Streaming test']);
+  const result = await streaming.finalPromise;
+  expect(result.exitCode).toEqual(0);
+  expect(result.stdout).toContain('Streaming test');
+});
+
+tap.test('execSpawn interactive control should work', async (tools) => {
+  const testSmartshell = new smartshell.Smartshell({
+    executor: 'bash',
+    sourceFilePaths: [],
+  });
+  
+  const interactive = await testSmartshell.execSpawnInteractiveControl('cat', []);
+  
+  await interactive.sendLine('Input line');
+  interactive.endInput();
+  
+  const result = await interactive.finalPromise;
+  expect(result.exitCode).toEqual(0);
+  expect(result.stdout).toContain('Input line');
+});
+
+tap.test('execSpawn should capture stderr', async () => {
+  const testSmartshell = new smartshell.Smartshell({
+    executor: 'bash',
+    sourceFilePaths: [],
+  });
+  
+  // ls on non-existent directory should produce stderr
+  const result = await testSmartshell.execSpawn('ls', ['/nonexistent/directory/path']);
+  expect(result.exitCode).not.toEqual(0);
+  expect(result.stderr).toBeTruthy();
+  expect(result.stderr).toContain('No such file or directory');
+});
+
+tap.test('execSpawn with timeout should terminate process', async () => {
+  const testSmartshell = new smartshell.Smartshell({
+    executor: 'bash',
+    sourceFilePaths: [],
+  });
+  
+  const start = Date.now();
+  const result = await testSmartshell.execSpawn('sleep', ['10'], { timeout: 100 });
+  const duration = Date.now() - start;
+  
+  // Process should be terminated by timeout
+  expect(duration).toBeLessThan(500);
+  expect(result.exitCode).not.toEqual(0);
+  expect(result.signal).toBeTruthy(); // Should have been killed by signal
+});
+
+tap.test('execSpawn with maxBuffer should truncate output', async () => {
+  const testSmartshell = new smartshell.Smartshell({
+    executor: 'bash',
+    sourceFilePaths: [],
+  });
+  
+  // Generate large output
+  const result = await testSmartshell.execSpawn('bash', ['-c', 'for i in {1..1000}; do echo "Line $i with some padding text to make it longer"; done'], {
+    maxBuffer: 1024, // Very small buffer
+  });
+  
+  expect(result.exitCode).toEqual(0);
+  expect(result.stdout).toContain('[Output truncated - exceeded maxBuffer]');
+});
+
+tap.test('execSpawn with onData callback should stream data', async (tools) => {
+  const testSmartshell = new smartshell.Smartshell({
+    executor: 'bash',
+    sourceFilePaths: [],
+  });
+  
+  let dataReceived = '';
+  const result = await testSmartshell.execSpawn('echo', ['Test data'], {
+    onData: (chunk) => {
+      dataReceived += chunk.toString();
+    }
+  });
+  
+  expect(result.exitCode).toEqual(0);
+  expect(dataReceived).toContain('Test data');
+});
+
+tap.test('execSpawn with signal should report signal in result', async () => {
+  const testSmartshell = new smartshell.Smartshell({
+    executor: 'bash',
+    sourceFilePaths: [],
+  });
+  
+  const streaming = await testSmartshell.execSpawnStreaming('sleep', ['10']);
+  
+  // Send SIGTERM after a short delay
+  setTimeout(() => streaming.terminate(), 100);
+  
+  const result = await streaming.finalPromise;
+  expect(result.exitCode).not.toEqual(0);
+  expect(result.signal).toEqual('SIGTERM');
+});
+
+export default tap.start();