Beispiel #1
0
 @NotNull
 public ImmutableList<Integer> range(final int lower, final int upper, final int step) {
   ImmutableList<Integer> result = ImmutableList.nil();
   for (int i = upper - ((upper - lower + step - 1) % step + 1); i >= lower; i -= step) {
     result = result.cons(i);
   }
   return result;
 }
Beispiel #2
0
public abstract class TestBase {
  private static final String BASE_PATH =
      System.getenv("CONFIG_DIR") == null ? "src/test/resources" : System.getenv("CONFIG_DIR");

  private static Random rand = new Random();

  protected static int rand(int low, int high) {
    return rand.nextInt(Math.max(high - low, 1)) + low;
  }

  protected static int rand() {
    return rand(-100, 101);
  }

  protected static Path getPath(String path) {
    Path pathObj = Paths.get(BASE_PATH + '/' + path);
    if (Files.exists(pathObj)) {
      return pathObj;
    } else {
      try {
        return Paths.get(TestBase.class.getResource("/" + path).toURI());
      } catch (URISyntaxException e) {
        throw new RuntimeException(e);
      }
    }
  }

  @NotNull
  protected static String readFile(@NotNull String path) throws IOException {
    byte[] encoded = Files.readAllBytes(getPath(path));
    return StandardCharsets.UTF_8.decode(ByteBuffer.wrap(encoded)).toString();
  }

  // Tests

  // static

  protected static NonEmptyImmutableList<Integer> LONG_LIST = ImmutableList.list(rand());

  static {
    for (int i = 0; i < 1000; i++) {
      LONG_LIST = LONG_LIST.cons(rand());
    }
  }

  @Before
  public void setUp() {
    rand = new Random(12345L);
  }

  @NotNull
  public ImmutableList<Integer> range(final int upper) {
    return range(0, upper);
  }

  @NotNull
  public ImmutableList<Integer> range(final int lower, final int upper) {
    return range(lower, upper, 1);
  }

  @NotNull
  public ImmutableList<Integer> range(final int lower, final int upper, final int step) {
    ImmutableList<Integer> result = ImmutableList.nil();
    for (int i = upper - ((upper - lower + step - 1) % step + 1); i >= lower; i -= step) {
      result = result.cons(i);
    }
    return result;
  }
}