Show an invalid option error when module does not exist

CHANGELOG.md

@@ -9,6 +9,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Addressed issue where `make:migration` and `make:livewire` were not loading the custom `--module` option
 - Added additional tests for `make:` commands to catch necessary changes quicker in the future
+- Passing a `--module` flag for an unknown module now triggers a console error
 
 ## [1.8.0] - 2022-06-04
 

src/Console/Commands/Modularize.php

@@ -4,16 +4,21 @@
 
 use InterNACHI\Modular\Support\ModuleConfig;
 use InterNACHI\Modular\Support\ModuleRegistry;
+use Symfony\Component\Console\Exception\InvalidOptionException;
 use Symfony\Component\Console\Input\InputOption;
 
 trait Modularize
 {
 	protected function module(): ?ModuleConfig
 	{
-		if ($module = $this->option('module')) {
-			return $this->getLaravel()
-				->make(ModuleRegistry::class)
-				->module($module);
+		if ($name = $this->option('module')) {
+			$registry = $this->getLaravel()->make(ModuleRegistry::class);
+
+			if ($module = $registry->module($name)) {
+				return $module;
+			}
+
+			throw new InvalidOptionException(sprintf('The "%s" module does not exist.', $name));
 		}
 
 		return null;

tests/Commands/Make/MakeControllerTest.php

@@ -6,6 +6,7 @@
 use InterNACHI\Modular\Tests\Concerns\TestsMakeCommands;
 use InterNACHI\Modular\Tests\Concerns\WritesToAppFilesystem;
 use InterNACHI\Modular\Tests\TestCase;
+use Symfony\Component\Console\Exception\InvalidOptionException;
 
 class MakeControllerTest extends TestCase
 {
@@ -21,6 +22,14 @@ public function test_it_overrides_the_default_command(): void
 			->assertExitCode(0);
 	}
 
+	public function test_it_produces_an_error_if_the_module_does_not_exist(): void
+	{
+		$this->expectException(InvalidOptionException::class);
+		$this->expectExceptionMessage('The "does-not-exist" module does not exist.');
+
+		$this->artisan('make:controller', ['name' => 'Test', '--module' => 'does-not-exist']);
+	}
+
 	public function test_it_scaffolds_a_controller_in_the_module_when_module_option_is_set(): void
 	{
 		$command = MakeController::class;