fix sonarbugs - adding test cases for Commander class

commander/src/test/java/com/iluwatar/commander/CommanderTest.java

@@ -0,0 +1,100 @@
+package com.iluwatar.commander;
+
+import com.iluwatar.commander.employeehandle.EmployeeDatabase;
+import com.iluwatar.commander.employeehandle.EmployeeHandle;
+import com.iluwatar.commander.exceptions.DatabaseUnavailableException;
+import com.iluwatar.commander.messagingservice.MessagingDatabase;
+import com.iluwatar.commander.messagingservice.MessagingService;
+import com.iluwatar.commander.paymentservice.PaymentDatabase;
+import com.iluwatar.commander.paymentservice.PaymentService;
+import com.iluwatar.commander.queue.QueueDatabase;
+import com.iluwatar.commander.shippingservice.ShippingDatabase;
+import com.iluwatar.commander.shippingservice.ShippingService;
+
+import org.junit.jupiter.api.Test;
+
+class CommanderTest {
+
+    private final int numOfRetries = 1;
+    private final long retryDuration = 10_000;
+    private final long queueTime = 1_000;
+    private final long queueTaskTime = 10_000;
+    private final long paymentTime = 60_000;
+    private final long messageTime = 50_000;
+    private final long employeeTime = 20_000;
+
+    private Commander buildCommanderObject() {
+        PaymentService paymentService = new PaymentService
+                (new PaymentDatabase(), new DatabaseUnavailableException(),
+                        new DatabaseUnavailableException(), new DatabaseUnavailableException(),
+                        new DatabaseUnavailableException(), new DatabaseUnavailableException(),
+                        new DatabaseUnavailableException());
+        var shippingService = new ShippingService(new ShippingDatabase());
+        var messagingService = new MessagingService(new MessagingDatabase());
+        var employeeHandle = new EmployeeHandle
+                (new EmployeeDatabase(), new DatabaseUnavailableException(),
+                        new DatabaseUnavailableException(), new DatabaseUnavailableException(),
+                        new DatabaseUnavailableException(), new DatabaseUnavailableException(),
+                        new DatabaseUnavailableException());
+        var qdb = new QueueDatabase
+                (new DatabaseUnavailableException(), new DatabaseUnavailableException(),
+                        new DatabaseUnavailableException(), new DatabaseUnavailableException(),
+                        new DatabaseUnavailableException(), new DatabaseUnavailableException());
+        return new Commander(employeeHandle, paymentService, shippingService,
+                messagingService, qdb, numOfRetries, retryDuration,
+                queueTime, queueTaskTime, paymentTime, messageTime, employeeTime);
+    }
+
+    private Commander buildCommanderObjectWithoutPaymentDB() {
+        return buildCommanderObjectWithoutPaymentDB(false);
+    }
+
+    private Commander buildCommanderObjectWithoutPaymentDB(boolean includeException) {
+        var l = new DatabaseUnavailableException();
+        PaymentService paymentService;
+        ShippingService shippingService;
+        MessagingService messagingService;
+        EmployeeHandle employeeHandle;
+        if (includeException) {
+            paymentService = new PaymentService
+                    (null, l);
+            shippingService = new ShippingService(null, l);
+            messagingService = new MessagingService(null, l);
+            employeeHandle = new EmployeeHandle
+                    (null, l);
+        } else {
+            paymentService = new PaymentService
+                    (null);
+            shippingService = new ShippingService(null);
+            messagingService = new MessagingService(null);
+            employeeHandle = new EmployeeHandle
+                    (null);
+        }
+
+
+        return new Commander(employeeHandle, paymentService, shippingService,
+                messagingService, null, numOfRetries, retryDuration,
+                queueTime, queueTaskTime, paymentTime, messageTime, employeeTime);
+    }
+
+    @Test
+    void testPlaceOrder() throws Exception {
+        Commander c = buildCommanderObject();
+        var order = new Order(new User("K", "J"), "pen", 1f);
+        c.placeOrder(order);
+    }
+
+    @Test
+    void testPlaceOrderWithServiceException() throws Exception {
+        Commander c = buildCommanderObjectWithoutPaymentDB();
+        var order = new Order(new User("K", null), "pen", 1f);
+        c.placeOrder(order);
+    }
+
+    @Test
+    void testPlaceOrderWithServiceExceptionAndList() throws Exception {
+        Commander c = buildCommanderObjectWithoutPaymentDB(true);
+        var order = new Order(new User("K", null), "pen", 1f);
+        c.placeOrder(order);
+    }
+}