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Exercise6Test.java
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Exercise6Test.java
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/*
* Copyright 2012 Goldman Sachs.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.gs.collections.kata;
import com.gs.collections.api.list.MutableList;
import com.gs.collections.impl.list.mutable.FastList;
import com.gs.collections.impl.utility.Iterate;
import org.junit.Assert;
import org.junit.Test;
public class Exercise6Test extends CompanyDomainForKata
{
@Test
public void filterOrderValues()
{
MutableList<Order> orders = this.company.getMostRecentCustomer().getOrders();
/**
* Same exercise but don't use static utility - refactor the type of orders and {@link Customer#getOrders()}
* instead.
* Get the order values that are greater than 1.5.
*/
MutableList<Double> orderValues = orders.collect(Order::getValue);
MutableList<Double> filtered = orderValues.select(orderValue -> orderValue > 1.5);
Assert.assertEquals(FastList.newListWith(372.5, 1.75), filtered);
}
@Test
public void filterOrders()
{
MutableList<Order> orders = this.company.getMostRecentCustomer().getOrders();
/**
* Same exercise but don't use static utility - refactor the type of orders and {@link Customer#getOrders()}
* instead.
* Get the actual orders (not their double values) where those orders have a value greater than 2.0.
*/
MutableList<Order> filtered = orders.select(order -> order.getValue() > 2.0);
Assert.assertEquals(FastList.newListWith(this.company.getMostRecentCustomer().getOrders().getFirst()), filtered);
}
}