WB-707: test(resolveinlinebehaviortest): add tests for missing behaviors

Add tests to verify exceptions are thrown when behaviors are not found.
These tests ensure that `OrderMachine` correctly handles missing behavior types.

tests/ResolveInlineBehaviorTest.php

@@ -53,3 +53,18 @@
     expect($eventBehavior)->toBeInstanceOf(EventBehavior::class)
         ->and($eventBehavior::getType())->toBe('ORDER_CREATED');
 });
+
+test('it throws exception when behavior not found', function (): void {
+    expect(fn () => OrderMachine::getCalculator('nonExistentCalculator'))
+        ->toThrow(BehaviorNotFoundException::class, 'Behavior of type `calculators.nonExistentCalculator` not found.');
+
+    expect(fn () => OrderMachine::getGuard('nonExistentGuard'))
+        ->toThrow(BehaviorNotFoundException::class, 'Behavior of type `guards.nonExistentGuard` not found.');
+
+    expect(fn () => OrderMachine::getAction('nonExistentAction'))
+        ->toThrow(BehaviorNotFoundException::class, 'Behavior of type `actions.nonExistentAction` not found.');
+
+    expect(fn () => OrderMachine::getEvent('nonExistentEvent'))
+        ->toThrow(BehaviorNotFoundException::class, 'Behavior of type `events.nonExistentEvent` not found.');
+});
+