试图用IntelliJ IDEA学习JUnit 5。创建一个测试类并尝试测试一种方法。这里的消息(见第三行):JUnit说我的测试方法“无法解析为独特的方法”
INFO: Discovered TestEngines with IDs: [junit-jupiter]
Internal Error occurred.
org.junit.platform.commons.util.PreconditionViolationException:'DirectoryTest#directory2bytes' could not be resolved to a unique method
at org.junit.platform.engine.discovery.DiscoverySelectors.lambda$selectMethod$1(DiscoverySelectors.java:131)
at java.util.Optional.orElseThrow(Optional.java:290)
at org.junit.platform.engine.discovery.DiscoverySelectors.selectMethod(DiscoverySelectors.java:130)
at com.intellij.junit5.JUnit5TestRunnerUtil.createSelector(JUnit5TestRunnerUtil.java:111)
at com.intellij.junit5.JUnit5TestRunnerUtil.buildRequest(JUnit5TestRunnerUtil.java:86)
at com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:46)
at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:51)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:237)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)
Process finished with exit code 254
Empty test suite.
我不明白为什么这种方法不能得到解决:它编译,它绝对有:
@Test
void directory2bytes() {
testBytes = testDir.directory2bytes();
for(int i = 0; i <= 10; i++) {
System.out.print(testBytes[i] + " ")
}
System.out.println();
}
而且我已经定义了这一点:
@BeforeEach
void setUp() {
testDir = new Directory()
testBytes = new byte[1000];
}
更新:退出并重新IntelliJ IDEA的,我现在越来越导入的符号“junit的”解决不了的消息,与各种注释“@beforeEach”以来,“afterEach”和“测试” 。
更新2:找到并修复了测试类中缺少的分号,但没有更改。注意:在某些未进行测试的类中存在编译错误,但我将测试运行配置设置为“构建,无错误检查”。这是正确的吗?我也尝试使用JUnit 4创建相同的测试(使用不同的类名),但这也不起作用。
下面是错误消息的前几行:
Dec 07, 2016 9:51:41 AM org.junit.platform.launcher.core.ServiceLoaderTestEngineRegistry loadTestEngines
INFO: Discovered TestEngines with IDs: [junit-jupiter, junit-vintage]
Internal Error occurred.
org.junit.platform.commons.util.PreconditionViolationException: Could not load class with name: DirectoryTest
at org.junit.platform.engine.discovery.MethodSelector.lambda$lazyLoadJavaClass$0(MethodSelector.java:154)
试图添加这个,但显然它没有记录:我现在正在Project Structure的Dependencies选项卡中显示消息“Library JUnit5 has broken path”。 –
你能否在GitHub上创建一个缩小的示例项目来演示你遇到的错误,而不是更多? –
另外,你有没有尝试在IDEA中创建一个新项目,看看是否以某种方式解决了你现有项目中存在的问题? –