Package org.checkerframework.framework.test

Class CheckerFrameworkPerFileTest

java.lang.Object

org.checkerframework.framework.test.CheckerFrameworkPerFileTest

public abstract class CheckerFrameworkPerFileTest
extends Object

Compiles all test files individually. Use CheckerFrameworkPerDirectoryTest to compile all files in a test directory together.

To use this class you must do two things:

1. Create exactly 1 constructor in the subclass with exactly 1 argument of type java.io.File. This File will be the Java file that is compiled and whose output is verified.
2. Create one of the following 2 public static methods with the annotation org.junit.runners.Parameterized.Parameters. The method name and signature must match exactly.
   • @Parameters public static String [] getTestDirs()

     getTestDir must return an array of directories that exist in the test folder, e.g.

       @Parameters
        public static String [] getTestDirs() {
           return new String[]{"all-systems", "flow"};
        }

     The directories can contain more path information (e.g., "myTestDir/moreTests") but note, the test suite will find all of the Java test files that exists below the listed directories. It is unnecessary to list child directories of a directory you have already listed.
   • @Parameters public static List<File> getTestFiles()

     The method returns a List of Java files. There are methods like TestUtilities.findNestedJavaTestFiles(java.lang.String...) to help you construct this List. The PerDirectorySuite will then instantiate the subclass once for each file returned by getTestFiles and execute the run method. An example of this method is:

       @Parameters
        public static List<File> getTestFiles() {
          return TestUtilities.findNestedJavaTestFiles("aggregate");
        }

Field Summary

Fields

Modifier and Type	Field	Description
protected final Class<?>	checker	The checker to use for tests.
protected final List<String>	checkerOptions	Extra options to pass to javac when running the checker.
protected final String	testDir	The path, relative to the test root directory (see CheckerFrameworkRootedTest.resolveTestDirectory()), to the directory containing test inputs.
protected final File	testFile	The file containing test code, which will be type-checked.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	CheckerFrameworkPerFileTest(File testFile, Class<? extends AbstractProcessor> checker, String testDir, String... checkerOptions)	Creates a new checker test.

Method Summary

Modifier and Type	Method	Description
void	checkResult(TypecheckResult typecheckResult)	Check that the TypecheckResult did not fail.
List<String>	customizeOptions(List<String> previousOptions)	Override this method if you would like to supply a checker command-line option that depends on the Java file passed to the test.
protected File	resolveTestDirectory()	Resolves the test root directory from the optional TestRootDirectory annotation or falls back to the default of currentDir/tests.
void	run()

Methods inherited from class java.lang.Object

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

Field Details

testFile

protected final File testFile

The file containing test code, which will be type-checked.

checker

protected final Class<?> checker

The checker to use for tests.

testDir

protected final String testDir

The path, relative to the test root directory (see CheckerFrameworkRootedTest.resolveTestDirectory()), to the directory containing test inputs.

checkerOptions

protected final List<String> checkerOptions

Extra options to pass to javac when running the checker.

Constructor Details

CheckerFrameworkPerFileTest

protected CheckerFrameworkPerFileTest(File testFile,
 Class<? extends AbstractProcessor> checker,
 String testDir,
 String... checkerOptions)

Creates a new checker test.

TestConfigurationBuilder.getDefaultConfigurationBuilder(String, File, String, Iterable, Iterable, List, boolean) adds additional checker options.

Parameters:

testFile - the file containing test code, which will be type-checked

checker - the class for the checker to use

testDir - the path, relative to currentDir/tests, to the directory of test inputs

checkerOptions - options to pass to the compiler when running tests

Method Details

run

public void run()

customizeOptions

public List<String> customizeOptions(List<String> previousOptions)

Override this method if you would like to supply a checker command-line option that depends on the Java file passed to the test. That file name is available in field testFile.

If you want to specify the same command-line option for all tests of a particular checker, then pass it to the CheckerFrameworkPerFileTest constructor.

Parameters:

previousOptions - the options specified in the constructor of the test previousOptions is unmodifiable

Returns:

a new list of options or the original passed through

resolveTestDirectory

protected File resolveTestDirectory()

Resolves the test root directory from the optional TestRootDirectory annotation or falls back to the default of currentDir/tests.

Returns:

the resolved directory

checkResult

public void checkResult(TypecheckResult typecheckResult)

Check that the TypecheckResult did not fail.

Parameters:

typecheckResult - result to check