org.evosuite.junit

Class JUnitAnalyzer

java.lang.Object

org.evosuite.junit.JUnitAnalyzer

public class JUnitAnalyzer
extends Object

This class is used to check if a set of test cases are valid for JUnit: ie, if they can be compiled, they do not fail, and if running them a second time produces same result (ie not fail).

Author:

arcuri

Constructor Summary

Constructors

Constructor and Description
JUnitAnalyzer()

Method Summary

Modifier and Type	Method and Description
protected static File	createNewTmpDir()
static int	handleTestsThatAreUnstable(List<TestCase> tests) Compile and run all the test cases, and mark as "unstable" all the ones that fail during execution (ie, unstable assertions).
static boolean	isJavaCompilerAvailable() Check if it is possible to use the Java compiler.
static void	removeTestsThatDoNotCompile(List<TestCase> tests) Try to compile each test separately, and remove the ones that cannot be compiled
static boolean	verifyCompilationAndExecution(List<TestCase> tests) Deprecated. not used anymore, as check are done in different methods now, and old "assert" was not really valid

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

JUnitAnalyzer

public JUnitAnalyzer()

Method Detail

removeTestsThatDoNotCompile

public static void removeTestsThatDoNotCompile(List<TestCase> tests)

Try to compile each test separately, and remove the ones that cannot be compiled

Parameters:

tests -

handleTestsThatAreUnstable

public static int handleTestsThatAreUnstable(List<TestCase> tests)

Compile and run all the test cases, and mark as "unstable" all the ones that fail during execution (ie, unstable assertions).

If a test fail due to an exception not related to a JUnit assertion, then remove such test from the input list

Parameters:

tests -

Returns:

the number of unstable tests

isJavaCompilerAvailable

public static boolean isJavaCompilerAvailable()

Check if it is possible to use the Java compiler.

Returns:

createNewTmpDir

protected static File createNewTmpDir()

verifyCompilationAndExecution

public static boolean verifyCompilationAndExecution(List<TestCase> tests)

Deprecated. not used anymore, as check are done in different methods now, and old "assert" was not really valid

The output of EvoSuite is a set of test cases. For debugging and experiment, we usually would not write any JUnit to file. But we still want to see if test cases can compile and execute properly. As EvoSuite is supposed to only capture the current behavior of the SUT, all generated test cases should pass.

Here we compile to a tmp folder, load and execute the test cases, and then clean up (ie delete all generated files).

Parameters:

tests -

Returns: