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Add dynamic test logic
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‎README.md

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@@ -8,12 +8,12 @@ This repository contains some examples of JUnit 5
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## Sample Code Component contains
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- [X] [Junit 5 Basic Test Sample](/src/main/java/com/example/junit5/test/basic)
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- [ ] [Junit 5 Dynamic Test Sample](/src/main/java/com/example/junit5/test/dynamic)
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- [X] [Junit 5 Spring Boot Test Sample](/src/main/java/com/example/junit5/test/springboot)
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- [X] [Junit 5 Basic Test Sample](/src/main/java/com/example/junit5/test/basic) (done)
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- [X] [Junit 5 Dynamic Test Sample](/src/main/java/com/example/junit5/test/dynamic) (done)
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- [X] [Junit 5 Spring Boot Test Sample](/src/main/java/com/example/junit5/test/springboot) (done)
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## Test Steps
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> NOTE: You can choose clone this repo. or Download Zip file to local.
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> NOTE: You can choose *clone* this repo. or *Download Zip* file to local.
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1. [Clone the repo](#1-clone-the-repo)
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As the repo using *maven-surefire-report-plugin* plug, you can find the test report in **scr/target/surefire-reports** folder.
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##Sample output
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## Sample output
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> Spring Running
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![](doc/source/images/test-result-report.jpg)
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# License
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## License
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[Apache 2.0](LICENSE)
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‎doc/source/images/.gitkeep

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‎doc/source/images/coverage.jpg

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‎pom.xml

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<version>1.2.0</version>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>org.junit.platform</groupId>
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<artifactId>junit-platform-commons</artifactId>
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<version>1.2.0</version>
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</dependency>
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<!-- end::tests[] -->
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</dependencies>
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</pluginRepository>
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</pluginRepositories>
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<reporting>
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<plugins>
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<plugin>

‎src/main/java/com/example/junit5/test/dynamic/.gitkeep

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‎src/main/java/com/example/junit5/test/dynamic/TranslatorEngine.java

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package com.example.junit5.test.dynamic;
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import org.junit.platform.commons.util.StringUtils;
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/**
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* @author bluetata / [email protected]</br>
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* @version java-maven-junit5-example version(1.0)</br>
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* @date 09/06/18 15:44</br>
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* @since JDK 1.8</br>
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*/
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public class TranslatorEngine {
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public String tranlate(String text) {
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if (StringUtils.isBlank(text)) {
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throw new IllegalArgumentException("Translated text must not be empty.");
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}
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if ("Hello".equalsIgnoreCase(text)) {
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return "你好";
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} else if ("Yes".equalsIgnoreCase(text)) {
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return "是";
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} else if ("No".equalsIgnoreCase(text)) {
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return "否";
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} else if ("Goodbye".equalsIgnoreCase(text)) {
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return "再见";
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} else if ("Good night".equalsIgnoreCase(text)) {
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return "晚安";
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} else if ("Thank you".equalsIgnoreCase(text)) {
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return "谢谢";
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} else {
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return "Not found";
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}
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}
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}

‎src/test/java/com/example/junit5/test/dynamic/TranslationEngineDynamicTest.java

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package com.example.junit5.test.dynamic;
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import org.junit.jupiter.api.*;
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import org.junit.jupiter.api.function.Executable;
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import java.util.*;
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import java.util.stream.Collectors;
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import java.util.stream.Stream;
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import static org.junit.jupiter.api.Assertions.assertEquals;
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/**
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* 使用Junit 5 dynamic test 进行动态测试
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* @author bluetata / [email protected]</br>
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* @version java-maven-junit5-example version(1.0)</br>
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* @date 09/06/18 15:44</br>
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* @since JDK 1.8</br>
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*/
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public class TranslationEngineDynamicTest {
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private TranslatorEngine translatorEngine;
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@BeforeEach
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@DisplayName("Before run test case to init resource -> TranslatorEngine")
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public void init() {
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translatorEngine = new TranslatorEngine();
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}
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public void translateDynamicTestsRaw() {
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List<String> inPhrases = new ArrayList<>(Arrays.asList("Hello", "Yes", "No"));
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List<String> outPhrases = new ArrayList<>(Arrays.asList("你好", "是", "否"));
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Collection<DynamicTest> dynamicTests = new ArrayList<>();
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for (int i = 0; i < inPhrases.size(); i++) {
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String phr = inPhrases.get(i);
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String outPhr = outPhrases.get(i);
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// create an test execution
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Executable exec = () -> assertEquals(outPhr, translatorEngine.tranlate(phr));
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// create a test display name
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String testName = "Test tranlate " + phr;
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// create dynamic test
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DynamicTest dTest = DynamicTest.dynamicTest(testName, exec);
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// add the dynamic test to collection
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dynamicTests.add(dTest);
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}
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}
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//
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//
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/**
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* @TestFactory method must return a Stream, Collection, Iterable, or Iterator of DynamicTest instances
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* @TestFactory 方法强制限制返回实例为: Stream, Collection, Iterable, or Iterator of DynamicTest.
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*
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* @return Collection 集合
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*/
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@Disabled
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// @TestFactory
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public Collection<DynamicTest> translateDynamicTests() {
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List<String> inPhrases =
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new ArrayList<>(Arrays.asList("Hello", "Yes", "No", "Goodbye", "Good night", "Thank you"));
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List<String> outPhrases =
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new ArrayList<>(Arrays.asList("你好", "是", "否", "再见", "晚安", "谢谢"));
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Collection<DynamicTest> dynamicTests = new ArrayList<>();
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for (int i = 0; i < inPhrases.size(); i++) {
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String phr = inPhrases.get(i);
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String outPhr = outPhrases.get(i);
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// create an test execution
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Executable exec = () -> assertEquals(outPhr, translatorEngine.tranlate(phr));
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// create a test display name
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String testName = "Test tranlate " + phr;
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// create dynamic test
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DynamicTest dTest = DynamicTest.dynamicTest(testName, exec);
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// add the dynamic test to collection
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dynamicTests.add(dTest);
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}
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return dynamicTests;
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}
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// 返回 Stream 流
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// @Disabled
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@TestFactory
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public Stream<DynamicTest> translateDynamicTestsFromStream() {
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// set all test action to cover 100%
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List<String> inPhrases =
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new ArrayList<>(Arrays.asList("Hello", "Yes", "No", "Goodbye", "Good night", "Thank you", "Other", " "));
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List<String> outPhrases =
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new ArrayList<>(Arrays.asList("你好", "是", "否", "再见", "晚安", "谢谢", "Not found", null));
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return inPhrases.stream().map(phrs -> DynamicTest.dynamicTest("Test translate " + phrs, () -> {
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int idx = inPhrases.indexOf(phrs);
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assertEquals(outPhrases.get(idx), translatorEngine.tranlate(phrs));
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}));
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}
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// 返回 Iterable 迭代器
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// @TestFactory
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public Iterable<DynamicTest> translateDynamicTestsFromIterate() {
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List<String> inPhrases =
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new ArrayList<>(Arrays.asList("Hello", "Yes", "No", "Goodbye", "Good night", "Thank you"));
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List<String> outPhrases =
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new ArrayList<>(Arrays.asList("你好", "是", "否", "再见", "晚安", "谢谢"));
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return inPhrases.stream().map(phrs -> DynamicTest.dynamicTest("Test translate " + phrs, () -> {
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int idx = inPhrases.indexOf(phrs);
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assertEquals(outPhrases.get(idx), translatorEngine.tranlate(phrs));
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})).collect(Collectors.toList());
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}
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// 返回 Iterator 迭代器
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@Disabled
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// @TestFactory
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public Iterator<DynamicTest> translateDynamicTestsFromIterator() {
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List<String> inPhrases =
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new ArrayList<>(Arrays.asList("Hello", "Yes", "No", "Goodbye", "Good night", "Thank you"));
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List<String> outPhrases =
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new ArrayList<>(Arrays.asList("你好", "是", "否", "再见", "晚安", "谢谢"));
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return inPhrases.stream().map(phrs -> DynamicTest.dynamicTest("Test translate " + phrs, () -> {
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int idx = inPhrases.indexOf(phrs);
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assertEquals(outPhrases.get(idx), translatorEngine.tranlate(phrs));
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})).iterator();
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}
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}

‎src/test/java/com/example/junit5/test/dynamic/TranslatorEngineTest.java

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package com.example.junit5.test.dynamic;
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import org.junit.jupiter.api.BeforeEach;
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import org.junit.jupiter.api.DisplayName;
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import org.junit.jupiter.api.Test;
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import static org.junit.jupiter.api.Assertions.assertEquals;
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/**
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* 非动态测试示例, 需要对每个branch创建测试用例, 并进行测试
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* @author bluetata / [email protected]</br>
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* @version java-maven-junit5-example version(1.0)</br>
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* @date 09/06/18 15:44</br>
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* @since JDK 1.8</br>
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*/
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class TranslatorEngineTest {
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private TranslatorEngine translatorEngine;
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@BeforeEach
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@DisplayName("Before run test case to init resource -> TranslatorEngine")
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void init() {
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translatorEngine = new TranslatorEngine();
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}
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@Test
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public void testTranlsateHello() {
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assertEquals("你好", translatorEngine.tranlate("Hello"));
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}
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@Test
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public void testTranlsateYes() {
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assertEquals("是", translatorEngine.tranlate("Yes"));
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}
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@Test
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public void testTranlsateNo() {
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assertEquals("否", translatorEngine.tranlate("No"));
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}
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//... other test case
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}

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