本文转自测试人社区，原文链接： https://ceshiren.com/t/topic/28218
创建动态测试的规则
- 不能是
privateor,static。 - 返回类型必须为：
Stream、Collection、Iterable、或Iterator、DynamicNode。
返回类型
DynamicNode- Stream
- Collection
- Iterable
- Iterator
返回DynamicNode
- 返回DynamicTest
- 返回DynamicContainer
package com.junit5.createdynamictest;import org.junit.jupiter.api.*;import java.util.Arrays;
import java.util.Collection;import static org.junit.jupiter.api.Assertions.assertEquals;public class DynamicBaseTest {// Static test 1@Test@DisplayName("加法静态测试用例")void test_Add() {assertEquals(5, 3+2);}// Static test 2@Test@DisplayName("除法静态测试用例")void test_Devide() {assertEquals(5,25/5);}@TestFactory@DisplayName("动态测试用例")Collection<DynamicNode> dynamicForCollecion(){DynamicTest dynamicTest1 = DynamicTest.dynamicTest("加法动态测试用例", () -> {System.out.println("这是一个加法动态测试用例");assertEquals(5, 3 + 2);});DynamicTest dynamicTest2 = DynamicTest.dynamicTest("除法动态测试用例", () -> {System.out.println("这是一个除法动态测试用例");assertEquals(5,25/5);});return Arrays.asList(dynamicTest1,dynamicTest2);}
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Stream
- 单个动态测试
- 多个动态测试
package com.junit5.dynamictest_rule;import org.hamcrest.MatcherAssert;
import org.junit.jupiter.api.*;import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.PrimitiveIterator;
import java.util.stream.IntStream;
import java.util.stream.Stream;import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.*;
import static org.junit.jupiter.api.Assertions.assertEquals;public class DynamicNodeTest {@TestFactory@DisplayName("单个动态测试")DynamicTest dynamicTest() {return DynamicTest.dynamicTest("返回DynamicTest", () -> {assertEquals(5, 3 + 2);});}@TestFactory@DisplayName("容器动态测试")DynamicContainer dynamicContainer() {return DynamicContainer.dynamicContainer("多个动态测试的容器",Stream.of(DynamicTest.dynamicTest("加法动态测试用例", () -> {System.out.println("这是一个加法动态测试用例");assertEquals(5, 3 + 2);}),DynamicTest.dynamicTest("除法动态测试用例", () -> {System.out.println("这是一个除法动态测试用例");assertEquals(5, 25 / 5);})));}//5,6,7 是不是比2大@TestFactory@DisplayName("动态测试单个Stream流")Stream<DynamicTest> dynamicTestStream() {return Stream.of(5, 6, 7).map(arg ->DynamicTest.dynamicTest("动态测试-" + arg, () -> {System.out.println("参数：" + arg);assertThat(arg, is(greaterThan(2)));}));}//5,6,7 是不是比2大@TestFactory@DisplayName("动态测试多个Stream流")Stream<DynamicContainer> dynamicTestStreams() {return Stream.of(5, 6, 7).map(arg -> DynamicContainer.dynamicContainer("Container-" + arg,Stream.of(DynamicTest.dynamicTest("1动态测试：" + arg, () -> {System.out.println("参数：" + arg);assertThat(arg, is(greaterThan(2)));}),DynamicTest.dynamicTest("2动态测试：" + arg, () -> {System.out.println("参数：" + arg);assertThat(arg, is(lessThan(9)));}))));}
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Collection
- 单个动态测试
- 多个动态测试
package com.junit5.dynamictest_rule;import org.hamcrest.MatcherAssert;
import org.junit.jupiter.api.*;import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.PrimitiveIterator;
import java.util.stream.IntStream;
import java.util.stream.Stream;import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.*;
import static org.junit.jupiter.api.Assertions.assertEquals;public class DynamicNodeTest {@TestFactory@DisplayName("动态测试Collection")Collection<DynamicTest> dynamicTestCollection(){Collection<DynamicTest> dynamicTests = new ArrayList<>();DynamicTest dynamicTest1=DynamicTest.dynamicTest("add-动态测试",()->{System.out.println("add动态测试用例：");});DynamicTest dynamicTest2=DynamicTest.dynamicTest("sub-动态测试",()->{System.out.println("sub动态测试用例：");});dynamicTests.add(dynamicTest1);dynamicTests.add(dynamicTest2);return dynamicTests;}}- 1.
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迭代器
Iterator
- 具有迭代状态的对象
- 有
hasNext()/next()
Iterable
- 是一系列可以迭代的元素 > Java中集合使用.iterator() 返回可迭代的对象
package com.junit5.dynamictest_rule;import org.hamcrest.MatcherAssert;
import org.junit.jupiter.api.*;import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.PrimitiveIterator;
import java.util.stream.IntStream;
import java.util.stream.Stream;import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.*;
import static org.junit.jupiter.api.Assertions.assertEquals;public class DynamicNodeTest {//返回类型为迭代器@TestFactory@DisplayName("迭代器动态测试")Iterator<DynamicTest> dynamicTestIterator(){Collection<DynamicTest> dynamicTests= new ArrayList<>();PrimitiveIterator.OfInt iterator = IntStream.iterate(2, n -> n + 1).limit(3).iterator();while (iterator.hasNext()){Integer next = iterator.next();DynamicTest dynamicTest1=DynamicTest.dynamicTest("n-动态测试",()->{System.out.println("n："+next);assertThat(next,is(greaterThan(1)));});DynamicTest dynamicTest2=DynamicTest.dynamicTest("2.n+1-动态测试",()->{int a=next+1;a+=1;System.out.println("n2："+a);assertThat(a,is(greaterThan(2)));});dynamicTests.add(dynamicTest1);dynamicTests.add(dynamicTest2);}return dynamicTests.iterator();}@TestFactory@DisplayName("迭代器的动态测试2")Iterable<DynamicTest> dynamicTestIterable(){Collection<DynamicTest> dynamicTests= new ArrayList<>();PrimitiveIterator.OfInt iterator = IntStream.iterate(2, n -> n + 1).limit(3).iterator();while (iterator.hasNext()){Integer next = iterator.next();DynamicTest dynamicTest1=DynamicTest.dynamicTest("迭代器n-动态测试",()->{System.out.println("n："+next);assertThat(next,is(greaterThan(1)));});DynamicTest dynamicTest2=DynamicTest.dynamicTest("迭代器n2.n+1-动态测试",()->{int a=next+1;a+=1;System.out.println("n2："+a);assertThat(a,is(greaterThan(2)));});dynamicTests.add(dynamicTest1);dynamicTests.add(dynamicTest2);}return dynamicTests;}
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