added install command sanity checks

tests/Feature/Commands/InstallCommandTest.php

@@ -0,0 +1,82 @@
+<?php
+
+use Illuminate\Process\PendingProcess;
+use Illuminate\Support\Facades\Process;
+
+beforeEach(function () {
+    Process::fake();
+});
+
+it('follows the happy path')
+    ->artisan('bundle:install')
+    ->expectsQuestion('Do you want to install Bun?', true)
+    ->expectsQuestion('Would you like to use CSS loading?', 'none')
+    ->assertSuccessful();
+
+it('installs Bun when selected', function () {
+    $this->artisan('bundle:install')
+        ->expectsQuestion('Do you want to install Bun?', true)
+        ->expectsQuestion('Would you like to use CSS loading?', 'none')
+        ->assertSuccessful();
+
+    Process::assertRan('npm install bun@^1 --save-dev');
+});
+
+it('doesnt install Bun when not selected', function () {
+    $this->artisan('bundle:install')
+        ->expectsQuestion('Do you want to install Bun?', false)
+        ->expectsQuestion('Would you like to use CSS loading?', 'none')
+        ->assertSuccessful();
+
+    Process::assertDidntRun('npm install bun@^1 --save-dev');
+});
+
+it('installs LightningCSS when selected', function () {
+    $this->artisan('bundle:install')
+        ->expectsQuestion('Do you want to install Bun?', false)
+        ->expectsQuestion('Would you like to use CSS loading?', 'css')
+        ->assertSuccessful();
+
+    Process::assertRan('npm install lightningcss --save-dev');
+});
+
+it('doesnt install LightningCSS when not selected', function () {
+    $this->artisan('bundle:install')
+        ->expectsQuestion('Do you want to install Bun?', false)
+        ->expectsQuestion('Would you like to use CSS loading?', 'none')
+        ->assertSuccessful();
+
+    Process::assertDidntRun('npm install lightningcss --save-dev');
+});
+
+it('installs Sass when selected', function () {
+    $this->artisan('bundle:install')
+        ->expectsQuestion('Do you want to install Bun?', false)
+        ->expectsQuestion('Would you like to use CSS loading?', 'sass')
+        ->assertSuccessful();
+
+    Process::assertRan('npm install lightningcss --save-dev');
+    Process::assertRan('npm install sass --save-dev');
+});
+
+it('doesnt install Sass when not selected', function () {
+    $this->artisan('bundle:install')
+        ->expectsQuestion('Do you want to install Bun?', false)
+        ->expectsQuestion('Would you like to use CSS loading?', 'none')
+        ->assertSuccessful();
+
+    Process::assertDidntRun('npm install lightningcss --save-dev');
+    Process::assertDidntRun('npm install sass --save-dev');
+});
+
+it('doesnt install anything when nothing selected', function () {
+    $this->artisan('bundle:install')
+        ->expectsQuestion('Do you want to install Bun?', false)
+        ->expectsQuestion('Would you like to use CSS loading?', 'none')
+        ->assertSuccessful();
+
+    // Assert for absence of npm install commands
+    Process::assertDidntRun(function (PendingProcess $process) {
+        return str($process->command)->startsWith('npm install');
+    });
+});