Fix vt test for conditional installation (#393)

mac/VibeTunnel/Utilities/CLIInstaller.swift

@@ -66,9 +66,13 @@ final class CLIInstaller {
                 // Check if it contains the correct app path reference
                 if let content = try? String(contentsOfFile: path, encoding: .utf8) {
                     // Verify it's our wrapper script with all expected components
+                    // Check for the exec command with flexible quoting and optional arguments
+                    // Allow for optional variables or arguments between $VIBETUNNEL_BIN and fwd
+                    let hasValidExecCommand = content.range(of: #"exec\s+["']?\$VIBETUNNEL_BIN["']?\s+fwd"#, options: .regularExpression) != nil
+                    
                     if content.contains("VibeTunnel CLI wrapper") &&
                         content.contains("$TRY_PATH/Contents/Resources/vibetunnel") &&
-                        content.contains("exec \"$VIBETUNNEL_BIN\" fwd")
+                        hasValidExecCommand
                     {
                         isCorrectlyInstalled = true
                         logger.info("CLIInstaller: Found valid vt script at \(path)")

web/CLAUDE.md

@@ -80,4 +80,11 @@ Do NOT use three separate commands (add, commit, push) as this is slow.
 - Do NOT modify `package.json` or `pnpm-lock.yaml` unless explicitly requested
 - Always ask for permission before suggesting new dependencies
 - Understand and work with the existing codebase architecture first
-- This project has custom implementations - don't assume we need standard packages
+- This project has custom implementations - don't assume we need standard packages
+
+## CRITICAL: vt Command in package.json
+**IMPORTANT: DO NOT add "vt": "./bin/vt" to the bin section of package.json or package.npm.json!**
+- The vt command must NOT be registered as a global binary in package.json
+- This is because it conflicts with other tools that use 'vt' (there are many)
+- Instead, vt is conditionally installed via postinstall script only if available
+- The postinstall script checks if vt already exists before creating a symlink

web/README.md

@@ -28,7 +28,8 @@ pnpm run build
 **npm package**:
 - Pre-built binaries for common platforms (macOS x64/arm64, Linux x64/arm64)
 - Automatic fallback to source compilation if pre-built binaries unavailable
-- Global installation makes `vibetunnel` and `vt` commands available system-wide
+- Global installation makes `vibetunnel` command available system-wide
+- Conditional `vt` command installation (see [VT Installation Guide](docs/VT_INSTALLATION.md))
 - Includes production dependencies only
 
 **Source installation**:

web/docs/VT_INSTALLATION.md

@@ -0,0 +1,113 @@
+# VT Command Installation Guide
+
+The `vt` command is VibeTunnel's convenient wrapper that allows you to run any command with terminal sharing enabled. This guide explains how the installation works and how to manage it.
+
+## Installation Behavior
+
+When you install VibeTunnel via npm, the `vt` command installation follows these rules:
+
+### Global Installation (`npm install -g vibetunnel`)
+- **Checks for existing `vt` command** to avoid conflicts with other tools
+- If no `vt` command exists, creates it globally
+- If `vt` already exists, skips installation and shows a warning
+- You can still use `npx vt` or `vibetunnel fwd` as alternatives
+
+### Local Installation (`npm install vibetunnel`)
+- Configures `vt` for local use only
+- Access via `npx vt` within your project
+
+## Platform Support
+
+### macOS and Linux
+- Creates a symlink to the `vt` script
+- Falls back to copying if symlink creation fails
+- Script is made executable automatically
+
+### Windows
+- Creates a `.cmd` wrapper for proper command execution
+- Copies the actual script alongside the wrapper
+- Works with Command Prompt, PowerShell, and Git Bash
+
+## Common Scenarios
+
+### Existing VT Command
+If you already have a `vt` command from another tool:
+```bash
+# You'll see this warning during installation:
+⚠️  A "vt" command already exists in your system
+   VibeTunnel's vt wrapper was not installed to avoid conflicts
+   You can still use "npx vt" or the full path to run VibeTunnel's vt
+```
+
+**Alternatives:**
+- Use `npx vt` (works globally if installed with -g)
+- Use `vibetunnel fwd` directly
+- Manually install to a different name (see below)
+
+### Manual Installation
+If automatic installation fails or you want to customize:
+
+```bash
+# Find where npm installs global packages
+npm config get prefix
+
+# On macOS/Linux, create symlink manually
+ln -s $(npm root -g)/vibetunnel/bin/vt /usr/local/bin/vt
+
+# Or copy and rename to avoid conflicts
+cp $(npm root -g)/vibetunnel/bin/vt /usr/local/bin/vibetunnel-vt
+chmod +x /usr/local/bin/vibetunnel-vt
+```
+
+### Force Reinstallation
+To force VibeTunnel to overwrite an existing `vt` command:
+
+```bash
+# Remove existing vt first
+rm -f $(which vt)
+
+# Then reinstall VibeTunnel
+npm install -g vibetunnel
+```
+
+## Troubleshooting
+
+### Permission Denied
+If you get permission errors during global installation:
+```bash
+# Option 1: Use a Node version manager (recommended)
+# With nvm: https://github.com/nvm-sh/nvm
+# With fnm: https://github.com/Schniz/fnm
+
+# Option 2: Change npm's default directory
+# See: https://docs.npmjs.com/resolving-eacces-permissions-errors
+```
+
+### Command Not Found
+If `vt` is installed but not found:
+```bash
+# Check if npm bin directory is in PATH
+echo $PATH
+npm config get prefix
+
+# Add to your shell profile (.bashrc, .zshrc, etc.)
+export PATH="$(npm config get prefix)/bin:$PATH"
+```
+
+### Windows Specific Issues
+- Ensure Node.js is in your system PATH
+- Restart your terminal after installation
+- Try using `vt.cmd` explicitly if `vt` doesn't work
+
+## Uninstallation
+
+The `vt` command is removed automatically when you uninstall VibeTunnel:
+```bash
+npm uninstall -g vibetunnel
+```
+
+If it persists, remove manually:
+```bash
+rm -f $(which vt)
+# On Windows: del "%APPDATA%\npm\vt.cmd"
+```

web/package.npm.json

@@ -4,8 +4,7 @@
   "description": "Terminal sharing server with web interface - supports macOS, Linux, and headless environments",
   "main": "lib/cli.js",
   "bin": {
-    "vibetunnel": "./bin/vibetunnel",
-    "vt": "./bin/vt"
+    "vibetunnel": "./bin/vibetunnel"
   },
   "files": [
     "lib/",

web/scripts/build-npm.js

@@ -600,7 +600,8 @@ async function main() {
     
     // Scripts
     { src: 'scripts/postinstall-npm.js', dest: 'scripts/postinstall.js' },
-    { src: 'scripts/node-pty-plugin.js', dest: 'scripts/node-pty-plugin.js' }
+    { src: 'scripts/node-pty-plugin.js', dest: 'scripts/node-pty-plugin.js' },
+    { src: 'scripts/install-vt-command.js', dest: 'scripts/install-vt-command.js' }
   ];
   
   function copyRecursive(src, dest) {

web/scripts/install-vt-command.js

@@ -0,0 +1,121 @@
+#!/usr/bin/env node
+const fs = require('fs');
+const path = require('path');
+const { execSync } = require('child_process');
+
+// Helper function to detect global installation
+const detectGlobalInstall = () => {
+  if (process.env.npm_config_global === 'true') return true;
+  if (process.env.npm_config_global === 'false') return false;
+  
+  try {
+    const globalPrefix = execSync('npm config get prefix', { encoding: 'utf8' }).trim();
+    const globalModules = path.join(globalPrefix, process.platform === 'win32' ? 'node_modules' : 'lib/node_modules');
+    const packagePath = path.resolve(__dirname, '..');
+    return packagePath.startsWith(globalModules);
+  } catch {
+    return false; // Default to local install
+  }
+};
+
+// Helper function to get npm global bin directory
+const getNpmBinDir = () => {
+  try {
+    // Try npm config first (more reliable)
+    const npmPrefix = execSync('npm config get prefix', { encoding: 'utf8' }).trim();
+    return path.join(npmPrefix, 'bin');
+  } catch (e) {
+    console.warn('⚠️  Could not determine npm global bin directory');
+    return null;
+  }
+};
+
+// Helper function to install vt globally
+const installGlobalVt = (vtSource, npmBinDir) => {
+  const vtTarget = path.join(npmBinDir, 'vt');
+  const isWindows = process.platform === 'win32';
+  
+  // Check if vt already exists
+  if (fs.existsSync(vtTarget) || (isWindows && fs.existsSync(vtTarget + '.cmd'))) {
+    console.log('⚠️  A "vt" command already exists in your system');
+    console.log('   VibeTunnel\'s vt wrapper was not installed to avoid conflicts');
+    console.log('   You can still use "npx vt" or the full path to run VibeTunnel\'s vt');
+    return true;
+  }
+  
+  try {
+    if (isWindows) {
+      // On Windows, create a .cmd wrapper
+      const cmdContent = `@echo off\r\nnode "%~dp0\\vt" %*\r\n`;
+      fs.writeFileSync(vtTarget + '.cmd', cmdContent);
+      // Also copy the actual script
+      fs.copyFileSync(vtSource, vtTarget);
+      console.log('✓ vt command installed globally (Windows)');
+    } else {
+      // On Unix-like systems, create symlink
+      fs.symlinkSync(vtSource, vtTarget);
+      console.log('✓ vt command installed globally');
+    }
+    console.log('  You can now use "vt" to wrap commands with VibeTunnel');
+    return true;
+  } catch (symlinkError) {
+    // If symlink fails on Unix, try copying the file
+    if (!isWindows) {
+      try {
+        fs.copyFileSync(vtSource, vtTarget);
+        fs.chmodSync(vtTarget, '755');
+        console.log('✓ vt command installed globally (copied)');
+        console.log('  You can now use "vt" to wrap commands with VibeTunnel');
+        return true;
+      } catch (copyError) {
+        console.warn('⚠️  Could not install vt command globally:', copyError.message);
+        console.log('   Use "npx vt" or "vibetunnel fwd" instead');
+        return false;
+      }
+    } else {
+      console.warn('⚠️  Could not install vt command on Windows:', symlinkError.message);
+      console.log('   Use "npx vt" or "vibetunnel fwd" instead');
+      return false;
+    }
+  }
+};
+
+// Install vt command handler
+const installVtCommand = (vtSource, isGlobalInstall) => {
+  if (!fs.existsSync(vtSource)) {
+    console.warn('⚠️  vt command script not found in package');
+    console.log('   Use "vibetunnel" command instead');
+    return false;
+  }
+  
+  try {
+    // Make vt script executable (Unix-like systems only)
+    if (process.platform !== 'win32') {
+      fs.chmodSync(vtSource, '755');
+    }
+    
+    if (!isGlobalInstall) {
+      console.log('✓ vt command configured for local use');
+      console.log('  Use "npx vt" to run the vt wrapper');
+      return true;
+    }
+    
+    const npmBinDir = getNpmBinDir();
+    if (!npmBinDir) {
+      return false;
+    }
+    
+    return installGlobalVt(vtSource, npmBinDir);
+  } catch (error) {
+    console.warn('⚠️  Could not configure vt command:', error.message);
+    console.log('   Use "vibetunnel" command instead');
+    return false;
+  }
+};
+
+module.exports = {
+  detectGlobalInstall,
+  getNpmBinDir,
+  installGlobalVt,
+  installVtCommand
+};

web/scripts/postinstall-npm.js

@@ -232,27 +232,19 @@ for (const module of modules) {
   }
 }
 
+// Import vt installation functions
+const { detectGlobalInstall, installVtCommand } = require('./install-vt-command');
+
 // Install vt symlink/wrapper
 if (!hasErrors && !isDevelopment) {
   console.log('\nSetting up vt command...');
   
   const vtSource = path.join(__dirname, '..', 'bin', 'vt');
   
-  // Check if vt script exists
-  if (!fs.existsSync(vtSource)) {
-    console.warn('⚠️  vt command script not found in package');
-    console.log('   Use "vibetunnel" command instead');
-  } else {
-    try {
-      // Make vt script executable
-      fs.chmodSync(vtSource, '755');
-      console.log('✓ vt command configured');
-      console.log('  Note: The vt command is available through npm/npx');
-    } catch (error) {
-      console.warn('⚠️  Could not configure vt command:', error.message);
-      console.log('   Use "vibetunnel" command instead');
-    }
-  }
+  // Use the improved global install detection
+  const isGlobalInstall = detectGlobalInstall();
+  console.log(`  Detected ${isGlobalInstall ? 'global' : 'local'} installation`);
+  installVtCommand(vtSource, isGlobalInstall);
 }
 
 if (hasErrors) {

web/scripts/test-vt-install.js

@@ -0,0 +1,94 @@
+#!/usr/bin/env node
+/**
+ * Test script for vt installation functionality
+ * This tests the install-vt-command module without relying on command substitution
+ */
+const fs = require('fs');
+const path = require('path');
+const os = require('os');
+let { execSync } = require('child_process');
+
+// Import the module we're testing
+const { detectGlobalInstall, installVtCommand } = require('./install-vt-command');
+
+// Create a test directory
+const testDir = fs.mkdtempSync(path.join(os.tmpdir(), 'vt-install-test-'));
+const testBinDir = path.join(testDir, 'bin');
+const vtPath = path.join(testBinDir, 'vt');
+
+// Create test vt script
+fs.mkdirSync(testBinDir, { recursive: true });
+fs.writeFileSync(vtPath, '#!/bin/bash\necho "test vt script"', { mode: 0o755 });
+
+console.log('Running vt installation tests...\n');
+
+// Test 1: Local installation
+console.log('Test 1: Local installation');
+process.env.npm_config_global = 'false';
+const localResult = installVtCommand(vtPath, false);
+console.log(`  Result: ${localResult ? 'PASS' : 'FAIL'}`);
+console.log(`  Expected: vt configured for local use\n`);
+
+// Test 2: Global installation detection
+console.log('Test 2: Global installation detection');
+process.env.npm_config_global = 'true';
+const isGlobal = detectGlobalInstall();
+console.log(`  Detected as global: ${isGlobal}`);
+console.log(`  Result: ${isGlobal === true ? 'PASS' : 'FAIL'}\n`);
+
+// Test 3: Global installation with existing vt
+console.log('Test 3: Global installation with existing vt');
+// Mock the existence check
+const originalExistsSync = fs.existsSync;
+const originalSymlinkSync = fs.symlinkSync;
+let existsCheckCalled = false;
+let symlinkCalled = false;
+
+fs.existsSync = (path) => {
+  if (path.endsWith('/vt')) {
+    existsCheckCalled = true;
+    return true; // Simulate existing vt
+  }
+  return originalExistsSync(path);
+};
+
+fs.symlinkSync = (target, path) => {
+  symlinkCalled = true;
+  return originalSymlinkSync(target, path);
+};
+
+// Create a mock npm bin directory
+const mockNpmBinDir = path.join(testDir, 'npm-bin');
+fs.mkdirSync(mockNpmBinDir, { recursive: true });
+
+// Mock execSync to return our test directory
+const originalExecSync = require('child_process').execSync;
+require('child_process').execSync = (cmd, opts) => {
+  if (cmd.includes('npm config get prefix')) {
+    return testDir;
+  }
+  return originalExecSync(cmd, opts);
+};
+
+process.env.npm_config_global = 'true';
+const globalResult = installVtCommand(vtPath, true);
+console.log(`  Existing vt check called: ${existsCheckCalled}`);
+console.log(`  Symlink attempted: ${symlinkCalled}`);
+console.log(`  Result: ${globalResult && existsCheckCalled && !symlinkCalled ? 'PASS' : 'FAIL'}`);
+console.log(`  Expected: Should detect existing vt and skip installation\n`);
+
+// Restore original functions
+fs.existsSync = originalExistsSync;
+fs.symlinkSync = originalSymlinkSync;
+require('child_process').execSync = originalExecSync;
+
+// Test 4: Missing vt script
+console.log('Test 4: Missing vt script');
+const missingResult = installVtCommand(path.join(testDir, 'nonexistent'), false);
+console.log(`  Result: ${!missingResult ? 'PASS' : 'FAIL'}`);
+console.log(`  Expected: Should return false for missing script\n`);
+
+// Cleanup
+fs.rmSync(testDir, { recursive: true, force: true });
+
+console.log('All tests completed.');

web/scripts/test-vt-syntax.sh

@@ -53,20 +53,22 @@ if awk '/if.*then/{start=NR; in_if=1; has_content=0} in_if && !/^[[:space:]]*#/
 fi
 echo "✅ vt script has no empty if statements"
 
-# Test 6: Check if package.json includes vt in bin section
+# Test 6: Check that package.json does NOT include vt in bin section
+# (vt is installed conditionally via postinstall script to avoid conflicts)
 PACKAGE_JSON="$PROJECT_ROOT/package.json"
 if [ -f "$PACKAGE_JSON" ]; then
-    if ! grep -q '"vt".*:.*"./bin/vt"' "$PACKAGE_JSON"; then
-        echo "❌ ERROR: package.json missing vt in bin section"
+    if grep -q '"vt".*:.*"./bin/vt"' "$PACKAGE_JSON"; then
+        echo "❌ ERROR: package.json should NOT include vt in bin section"
+        echo "   vt must be installed conditionally via postinstall to avoid conflicts"
         exit 1
     fi
-    echo "✅ package.json includes vt in bin section"
+    echo "✅ package.json correctly omits vt from bin section (installed conditionally)"
 fi
 
 # Test 7: Basic functionality test (help command)
-# Skip this test if we're already inside a VibeTunnel session
+# Skip if already inside a VibeTunnel session (recursive sessions not supported)
 if [ -n "$VIBETUNNEL_SESSION_ID" ]; then
-    echo "✅ vt script detected we're inside a VibeTunnel session (expected behavior)"
+    echo "⚠️  Skipping vt --help test (already inside VibeTunnel session)"
 else
     # Use gtimeout if available, otherwise skip timeout
     if command -v gtimeout >/dev/null 2>&1; then
@@ -81,7 +83,7 @@ else
             exit 1
         fi
     fi
+    echo "✅ vt --help command works"
 fi
-echo "✅ vt --help command works"
 
 echo "🎉 All vt command tests passed!"

web/src/test/unit/postinstall-vt.test.ts

@@ -0,0 +1,188 @@
+import * as fs from 'node:fs';
+import * as os from 'node:os';
+import * as path from 'node:path';
+import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
+
+describe('postinstall vt installation', () => {
+  let testDir: string;
+  let originalEnv: NodeJS.ProcessEnv;
+
+  beforeEach(() => {
+    // Create a temporary directory for testing
+    testDir = fs.mkdtempSync(path.join(os.tmpdir(), 'vt-test-'));
+    originalEnv = { ...process.env };
+    vi.clearAllMocks();
+  });
+
+  afterEach(() => {
+    // Clean up
+    process.env = originalEnv;
+    fs.rmSync(testDir, { recursive: true, force: true });
+    vi.restoreAllMocks();
+  });
+
+  describe('installVtCommand - local installation', () => {
+    it('should configure vt for local use when not global install', () => {
+      const vtSource = path.join(testDir, 'vt');
+      fs.writeFileSync(vtSource, '#!/bin/bash\necho "test vt"');
+
+      const consoleSpy = vi.spyOn(console, 'log').mockImplementation(() => {});
+
+      const { installVtCommand } = require('../../../scripts/install-vt-command');
+      const result = installVtCommand(vtSource, false);
+
+      expect(result).toBe(true);
+      expect(consoleSpy).toHaveBeenCalledWith('✓ vt command configured for local use');
+      expect(consoleSpy).toHaveBeenCalledWith('  Use "npx vt" to run the vt wrapper');
+
+      // Check file is executable on Unix
+      if (process.platform !== 'win32') {
+        const stats = fs.statSync(vtSource);
+        expect(stats.mode & 0o111).toBeTruthy(); // Check execute bit
+      }
+
+      consoleSpy.mockRestore();
+    });
+
+    it('should handle missing vt script gracefully', () => {
+      const vtSource = path.join(testDir, 'nonexistent');
+      const consoleWarnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});
+      const consoleLogSpy = vi.spyOn(console, 'log').mockImplementation(() => {});
+
+      const { installVtCommand } = require('../../../scripts/install-vt-command');
+      const result = installVtCommand(vtSource, false);
+
+      expect(result).toBe(false);
+      expect(consoleWarnSpy).toHaveBeenCalledWith('⚠️  vt command script not found in package');
+      expect(consoleLogSpy).toHaveBeenCalledWith('   Use "vibetunnel" command instead');
+
+      consoleWarnSpy.mockRestore();
+      consoleLogSpy.mockRestore();
+    });
+  });
+
+  describe('detectGlobalInstall - environment variables', () => {
+    it('should detect global install when npm_config_global is true', () => {
+      process.env.npm_config_global = 'true';
+
+      const { detectGlobalInstall } = require('../../../scripts/install-vt-command');
+      const result = detectGlobalInstall();
+
+      expect(result).toBe(true);
+    });
+
+    it('should detect local install when npm_config_global is false', () => {
+      process.env.npm_config_global = 'false';
+
+      const { detectGlobalInstall } = require('../../../scripts/install-vt-command');
+      const result = detectGlobalInstall();
+
+      expect(result).toBe(false);
+    });
+  });
+
+  describe('Installation helpers', () => {
+    it('should check for existing vt command', () => {
+      const mockBinDir = path.join(testDir, 'bin');
+      fs.mkdirSync(mockBinDir);
+
+      // Test when vt doesn't exist
+      const vtPath = path.join(mockBinDir, 'vt');
+      expect(fs.existsSync(vtPath)).toBe(false);
+
+      // Create vt and test it exists
+      fs.writeFileSync(vtPath, '#!/bin/bash\necho "test"');
+      expect(fs.existsSync(vtPath)).toBe(true);
+    });
+
+    it('should handle Windows .cmd files', () => {
+      if (process.platform !== 'win32') {
+        // Skip on non-Windows
+        return;
+      }
+
+      const mockBinDir = path.join(testDir, 'bin');
+      fs.mkdirSync(mockBinDir);
+
+      const cmdPath = path.join(mockBinDir, 'vt.cmd');
+      const cmdContent = '@echo off\r\nnode "%~dp0\\vt" %*\r\n';
+
+      fs.writeFileSync(cmdPath, cmdContent);
+
+      const content = fs.readFileSync(cmdPath, 'utf8');
+      expect(content).toContain('@echo off');
+      expect(content).toContain('node "%~dp0\\vt" %*');
+    });
+
+    it('should handle symlink creation', () => {
+      if (process.platform === 'win32') {
+        // Skip on Windows
+        return;
+      }
+
+      const sourceFile = path.join(testDir, 'source');
+      const targetLink = path.join(testDir, 'target');
+
+      fs.writeFileSync(sourceFile, '#!/bin/bash\necho "test"');
+
+      // Create symlink
+      fs.symlinkSync(sourceFile, targetLink);
+
+      // Verify symlink exists and points to correct file
+      expect(fs.existsSync(targetLink)).toBe(true);
+      expect(fs.lstatSync(targetLink).isSymbolicLink()).toBe(true);
+      expect(fs.readlinkSync(targetLink)).toBe(sourceFile);
+    });
+
+    it('should handle file copying as fallback', () => {
+      const sourceFile = path.join(testDir, 'source');
+      const targetFile = path.join(testDir, 'target');
+
+      const content = '#!/bin/bash\necho "test"';
+      fs.writeFileSync(sourceFile, content);
+
+      // Copy file
+      fs.copyFileSync(sourceFile, targetFile);
+
+      // Make executable on Unix
+      if (process.platform !== 'win32') {
+        fs.chmodSync(targetFile, '755');
+      }
+
+      // Verify copy
+      expect(fs.existsSync(targetFile)).toBe(true);
+      expect(fs.readFileSync(targetFile, 'utf8')).toBe(content);
+
+      if (process.platform !== 'win32') {
+        const stats = fs.statSync(targetFile);
+        expect(stats.mode & 0o111).toBeTruthy(); // Check execute bit
+      }
+    });
+  });
+
+  describe('Edge cases', () => {
+    it('should handle permission errors gracefully', () => {
+      const vtSource = path.join(testDir, 'vt');
+      fs.writeFileSync(vtSource, '#!/bin/bash\necho "test vt"');
+
+      // Create a read-only directory to trigger permission error
+      const readOnlyDir = path.join(testDir, 'readonly');
+      fs.mkdirSync(readOnlyDir);
+
+      // This would normally fail with permission denied if we made it truly read-only
+      // but that's hard to test cross-platform, so we just verify the setup
+      expect(fs.existsSync(readOnlyDir)).toBe(true);
+    });
+
+    it('should handle path with spaces', () => {
+      const dirWithSpaces = path.join(testDir, 'dir with spaces');
+      fs.mkdirSync(dirWithSpaces);
+
+      const vtSource = path.join(dirWithSpaces, 'vt');
+      fs.writeFileSync(vtSource, '#!/bin/bash\necho "test vt"');
+
+      expect(fs.existsSync(vtSource)).toBe(true);
+      expect(fs.readFileSync(vtSource, 'utf8')).toContain('test vt');
+    });
+  });
+});