Closer closer = new Closer(suppressor);

    TestCloseable c1 = closer.register(TestCloseable.normal());
    TestCloseable c2 = closer.register(TestCloseable.normal());
    TestCloseable c3 = closer.register(TestCloseable.normal());

    assertFalse(c1.isClosed());
    assertFalse(c2.isClosed());
    assertFalse(c3.isClosed());

    closer.close();

    assertTrue(c1.isClosed());
    assertTrue(c2.isClosed());

    val poolApi = ConnectionPool(pool)
    val c1 = factory.newConnection(pool, routeA1, 0L)
    allocateAndLeakAllocation(poolApi, c1)
    awaitGarbageCollection()
    assertThat(pool.closeConnections(100L)).isEqualTo(0L)
    assertThat(c1.calls).isEmpty()

    // Can't allocate once a leak has been detected.
    assertThat(c1.noNewExchanges).isTrue()
  }

  @Test fun interruptStopsThread() {

    Closer closer = new Closer(suppressor);

    TestCloseable c1 = closer.register(TestCloseable.normal());
    TestCloseable c2 = closer.register(TestCloseable.normal());
    TestCloseable c3 = closer.register(TestCloseable.normal());

    assertFalse(c1.isClosed());
    assertFalse(c2.isClosed());
    assertFalse(c3.isClosed());

    closer.close();

    assertTrue(c1.isClosed());
    assertTrue(c2.isClosed());

        Comparable c1 = newComparable(v1);
        Comparable c2 = newComparable(v2);
        assertEquals(0, c1.compareTo(c2), "expected " + v1 + " == " + v2);
        assertEquals(0, c2.compareTo(c1), "expected " + v2 + " == " + v1);
        assertEquals(c1.hashCode(), c2.hashCode(), "expected same hashcode for " + v1 + " and " + v2);
        assertEquals(c1, c2, "expected " + v1 + ".equals( " + v2 + " )");

    checkNotNull(seq);
    if (index < end) {
      char c1 = seq.charAt(index++);
      if (c1 < Character.MIN_HIGH_SURROGATE || c1 > Character.MAX_LOW_SURROGATE) {
        // Fast path (first test is probably all we need to do)
        return c1;
      } else if (c1 <= Character.MAX_HIGH_SURROGATE) {
        // If the high surrogate was the last character, return its inverse

      while (i + 4 <= utf16Length) {
        char c0 = input.charAt(i);
        char c1 = input.charAt(i + 1);
        char c2 = input.charAt(i + 2);
        char c3 = input.charAt(i + 3);
        if (c0 < 0x80 && c1 < 0x80 && c2 < 0x80 && c3 < 0x80) {
          int k1 = c0 | (c1 << 8) | (c2 << 16) | (c3 << 24);
          k1 = mixK1(k1);
          h1 = mixH1(h1, k1);
          i += 4;

    CharSource c1 = CharSource.wrap("abc");
    CharSource c2 = CharSource.wrap("");
    CharSource c3 = CharSource.wrap("de");

    String expected = "abcde";

    assertEquals(expected, CharSource.concat(ImmutableList.of(c1, c2, c3)).read());
    assertEquals(expected, CharSource.concat(c1, c2, c3).read());
    assertEquals(expected, CharSource.concat(ImmutableList.of(c1, c2, c3).iterator()).read());

	}

	if len(p) > avail {
		err = ErrTooMuchDataToWrite
		p = p[:avail]
	}
	n = len(p)

	if r.w >= r.r {
		c1 := r.size - r.w
		if c1 >= n {
			copy(r.buf[r.w:], p)
			r.w += n
		} else {
			copy(r.buf[r.w:], p[:c1])
			c2 := n - c1
			copy(r.buf[0:], p[c1:])
			r.w = c2
		}
	} else {
		copy(r.buf[r.w:], p)
		r.w += n
	}

	if r.w == r.size {
		r.w = 0
	}

     *
     * @param c1 first signature to compare
     * @param c2 second signature to compare
     * @return MORE_SPECIFIC if c1 is more specific than c2, LESS_SPECIFIC if
     *         c1 is less specific than c2, INCOMPARABLE if they are incomparable.
     */
    private static int moreSpecific(Class<?>[] c1, Class<?>[] c2) {
        boolean c1MoreSpecific = false;

    CharSource c1 = CharSource.wrap("abc");
    CharSource c2 = CharSource.wrap("");
    CharSource c3 = CharSource.wrap("de");

    String expected = "abcde";

    assertEquals(expected, CharSource.concat(ImmutableList.of(c1, c2, c3)).read());
    assertEquals(expected, CharSource.concat(c1, c2, c3).read());
    assertEquals(expected, CharSource.concat(ImmutableList.of(c1, c2, c3).iterator()).read());