/**
* Copyright 2013, Landz and its contributors. All rights reserved.
*
* 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 z.function;
import org.junit.Test;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.core.Is.is;
public class PipelineTest {
@Test
public void sanityCheck() {
Pipeline<Integer, Boolean> testPipeline =
Pipeline
.create(PipelineTest::func1)
.next(PipelineTest::func2)
.end();
assertThat(testPipeline.apply(12),is(false));
assertThat(testPipeline.apply(123),is(true));
//
Pipeline<String, Double> pl2 =
Pipeline
.create(PipelineTest::func3)
.end();
//
assertThat(pl2.apply("3.14159"),is(3.14159));
//
Pipeline<Boolean, Integer> pl3 =
Pipeline
.create(PipelineTest::find)
.next(PipelineTest::stat)
.end();
//
assertThat(pl3.apply(true),is(2));
assertThat(pl3.apply(false),is(0));
}
static String func1(int x) {
return String.valueOf(x);
}
static boolean func2(String s) {
return s.startsWith("123")?true:false;
}
static Double func3(String s) {
return Double.valueOf(s);
}
static List<String> find(boolean need) {
return need ?
Arrays.asList("s1","s2","1s","2s") : Collections.<String>emptyList();
}
static int stat(List<String> list) {
return list.stream().filter(s->s.startsWith("s")).mapToInt(e->1).sum();
}
static void voidReturn(List<String> list) {
}
}