public static void runInMain(Class<?> testClass, String[] args)
throws InitializationError, NoTestsRemainException {
JUnitCore core = new JUnitCore();
core.addListener(new TextListener(System.out));
SLTestRunner suite = new SLTestRunner(testClass);
if (args.length > 0) {
suite.filter(new NameFilter(args[0]));
}
Result r = core.run(suite);
if (!r.wasSuccessful()) {
System.exit(1);
}
}
/**
* Tests are created based on the files that exist in the directory specified in the passed in
* annotation. Each test must have a source file and an expected output file. Optionally, each
* test can also include an input file. Source files have an ".sl" extension. Expected output have
* a ".output" extension. Input files have an ".input" extension. All these files must share the
* same base name to be correctly grouped. For example: "test1_assnCount.sl",
* "test1_assnCount.output" and "test1_assnCount.input" would all be used to create a single test
* called "test1_assnCount".
*
* <p>This method iterates over the files in the directory and creates a new InstrumentTestCase
* for each group of related files. Each file is also expected to end with an identified at the
* end of the base name to indicate what visitor needs to be attached. Currently, visitors are
* hard coded to work on specific lines, so the code here is not currently generalizable.
*
* @param c The annotation containing the directory with tests
* @return A list of {@link InstrumentTestCase}s to run.
* @throws IOException If the directory is invalid.
* @throws InitializationError If no directory is provided.
* @see #runChild(InstrumentTestCase, RunNotifier)
*/
protected static List<InstrumentTestCase> createTests(final Class<?> c)
throws IOException, InitializationError {
SLInstrumentTestSuite suite = c.getAnnotation(SLInstrumentTestSuite.class);
if (suite == null) {
throw new InitializationError(
String.format(
"@%s annotation required on class '%s' to run with '%s'.",
SLInstrumentTestSuite.class.getSimpleName(),
c.getName(),
SLInstrumentTestRunner.class.getSimpleName()));
}
String[] paths = suite.value();
Path root = SLTestRunner.getRootViaResourceURL(c, paths);
if (root == null) {
for (String path : paths) {
root = FileSystems.getDefault().getPath(path);
if (Files.exists(root)) {
break;
}
}
}
if (root == null && paths.length > 0) {
throw new FileNotFoundException(paths[0]);
}
final Path rootPath = root;
final List<InstrumentTestCase> testCases = new ArrayList<>();
// Scaffolding in place for future automation
Files.walkFileTree(
rootPath,
new SimpleFileVisitor<Path>() {
@Override
public FileVisitResult visitFile(Path sourceFile, BasicFileAttributes attrs)
throws IOException {
String sourceName = sourceFile.getFileName().toString();
if (sourceName.endsWith(SOURCE_SUFFIX)) {
String baseName =
sourceName.substring(0, sourceName.length() - SOURCE_SUFFIX.length());
Path inputFile = sourceFile.resolveSibling(baseName + INPUT_SUFFIX);
String testInput = "";
if (Files.exists(inputFile)) {
testInput = readAllLines(inputFile);
}
Path outputFile = sourceFile.resolveSibling(baseName + OUTPUT_SUFFIX);
String expectedOutput = "";
if (Files.exists(outputFile)) {
expectedOutput = readAllLines(outputFile);
}
testCases.add(
new InstrumentTestCase(
c, baseName, sourceName, sourceFile, testInput, expectedOutput));
}
return FileVisitResult.CONTINUE;
}
});
return testCases;
}