Fehler beim Testen einer erwarteten Ausnahme, obwohl die richtige Ausnahme ausgelöst wird

Question

Ich mache ein Kinoprojekt, und ich mache meine Komponententests. Beim Testen einer Methode namens addMovie: Ich erwarte die Ausnahme ausgelöst, aber der Test schlägt immer noch fehl.

public static void addMovie(Movie movie) { 
    MySQL.queryUpdate("INSERT INTO movies (title, genre, duration) VALUES " + 
      "('" + movie.getTitle() + "', '" + movie.getGenre() + "', '" + movie.getDuration() + "')"); 
} 

Testmethode:

@Test(expected=MySQLIntegrityConstraintViolationException.class) 
public void addMovieWithSameTitle() { 
    Movie.addMovie(m2); 

Und hier ist meine Fehlermeldung:

com.mysql.jdbc.exceptions.MySQLIntegrityConstraintViolationException: Duplicate entry 'Saw IV' for key 'title_UNIQUE' 
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:931) 
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2985) 
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1631) 
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1723) 
at com.mysql.jdbc.Connection.execSQL(Connection.java:3277) 
at com.mysql.jdbc.Statement.executeUpdate(Statement.java:1402) 
at com.mysql.jdbc.Statement.executeUpdate(Statement.java:1317) 
at com.gruppe37.MySQL.queryUpdate(MySQL.java:40) 
at com.gruppe37.Movie.addMovie(Movie.java:72) 
at com.gruppe37.MovieTest.addMovieWithSameTitle(MovieTest.java:71) 
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 org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50) 
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) 
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47) 
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) 
at org.junit.internal.runners.statements.ExpectException.evaluate(ExpectException.java:19) 
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26) 
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27) 
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325) 
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78) 
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57) 
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) 
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) 
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) 
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) 
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) 
at org.junit.runners.ParentRunner.run(ParentRunner.java:363) 
at org.junit.runner.JUnitCore.run(JUnitCore.java:137) 
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:117) 
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:42) 
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:262) 
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:84) 
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) 

java.lang.AssertionError: Erwartete Ausnahme: com.mysql.jdbc.exceptions.MySQLIntegrityConstraintViolationException

at org.junit.internal.runners.statements.ExpectException.evaluate(ExpectException.java:32) 
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26) 
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27) 
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325) 
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78) 
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57) 
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) 
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) 
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) 
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) 
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) 
at org.junit.runners.ParentRunner.run(ParentRunner.java:363) 
at org.junit.runner.JUnitCore.run(JUnitCore.java:137) 
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:117) 
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:42) 
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:262) 
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:84) 
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) 

Was mache ich falsch? i importierte die Klasse und alle

Answer 1

MySQLIntegrityConstraintViolationException ist eine geprüfte Ausnahme, aber Ihre MySQL.queryUpdate versteckt die geprüfte Ausnahmen (keine catch und keine throws in addMovie). Daher können Sie es im Test nicht abfangen.