public CompilationUnitImpl getCompUnit(Class<?> base, String relPath)
throws CoreException, IOException, DartModelException {
DartLibraryImpl lib = getDartApp();
String expected = TestFileUtil.readResource(base, relPath);
String fileName = relPath.substring(relPath.lastIndexOf('/') + 1);
IFile file = getOrCreateFile(fileName, expected);
DefaultWorkingCopyOwner wcopy = DefaultWorkingCopyOwner.getInstance();
CompilationUnitImpl unit = new CompilationUnitImpl(lib, file, wcopy);
String actual = unit.getSource();
assertEquals(expected, actual);
return unit;
}
