source: class DiskLruCacheTest {
  
    private final int appVersion;
    private String javaTmpDir;
    private File cacheDir;
    private File journalFile;
    private File journalBkpFile;
    private DiskLruCache cache;
  
    @Test public void constructorDoesNotAllowZeroValuesPerEntry() throws Exception {
  
target:     try {
        DiskLruCache.open(cacheDir, appVersion, 0, 10);
        fail();
      } catch (IllegalArgumentException expected) {
      }
    }
  
  }