Made minor changes in some patterns such as removed throws clause where not needed, changed incorrect order of arguments in assertEquals

dao/src/test/java/com/iluwatar/dao/CustomerTest.java

@@ -88,13 +88,7 @@ public class CustomerTest {
 
   @Test
   public void testToString() {
-    final StringBuffer buffer = new StringBuffer();
-    buffer.append("Customer{id=")
-            .append("" + customer.getId())
-            .append(", firstName='")
-            .append(customer.getFirstName())
-            .append("\', lastName='")
-            .append(customer.getLastName() + "\'}");
-    assertEquals(buffer.toString(), customer.toString());
+    assertEquals(String.format("Customer{id=%s, firstName='%s', lastName='%s'}",
+        customer.getId(), customer.getFirstName(), customer.getLastName()), customer.toString());
   }
 }

dao/src/test/java/com/iluwatar/dao/DbCustomerDaoTest.java

@@ -257,7 +257,7 @@ public class DbCustomerDaoTest {
 
   private void assertCustomerCountIs(int count) throws Exception {
     try (Stream<Customer> allCustomers = dao.getAll()) {
-      assertTrue(allCustomers.count() == count);
+      assertEquals(count, allCustomers.count());
     }
   }
 

dao/src/test/java/com/iluwatar/dao/InMemoryCustomerDaoTest.java

@@ -156,7 +156,7 @@ public class InMemoryCustomerDaoTest {
   
   private void assertCustomerCountIs(int count) throws Exception {
     try (Stream<Customer> allCustomers = dao.getAll()) {
-      assertTrue(allCustomers.count() == count);
+      assertEquals(count, allCustomers.count());
     }
   }
 }