// When
            copy.encode(buffer, startIndex);

            // Then
            // The implementation skips 4 reserved bytes without writing zeros
            // This is consistent with the actual implementation behavior
            // The reserved bytes remain as they were in the buffer
            for (int i = 0; i < 4; i++) {

   * concurrency, and performance characteristics as the backing map. In essence, this factory
   * method provides a {@link Set} implementation corresponding to any {@link Map} implementation.
   * There is no need to use this method on a {@link Map} implementation that already has a
   * corresponding {@link Set} implementation (such as {@link java.util.HashMap} or {@link
   * java.util.TreeMap}).
   *

              @Override
              public String pendingToString() {
                throw new RuntimeException("I'm a misbehaving implementation");
              }
            }.toString())
        .matches(
            "[^\\[]+\\[status=PENDING, info=\\[Exception thrown from implementation: "
                + "class java.lang.RuntimeException\\]\\]");
  }

  public void testCompletionFinishesWithDone() {

    public void test_basicAssertion() {
        assertTrue(true);
        assertFalse(false);
        assertNotNull("test");
        assertEquals(1, 1);
    }

    // Test placeholder for future implementation
    public void test_placeholder() {
        // This test verifies the test class can be instantiated and run
        String testValue = "test";
        assertNotNull(testValue);
        assertEquals("test", testValue);

    public void test_basicAssertion() {
        assertTrue(true);
        assertFalse(false);
        assertNotNull("test");
        assertEquals(1, 1);
    }

    // Test placeholder for future implementation
    public void test_placeholder() {
        // This test verifies the test class can be instantiated and run
        String testValue = "test";
        assertNotNull(testValue);
        assertEquals("test", testValue);

    public void test_basicAssertion() {
        assertTrue(true);
        assertFalse(false);
        assertNotNull("test");
        assertEquals(1, 1);
    }

    // Test placeholder for future implementation
    public void test_placeholder() {
        // This test verifies the test class can be instantiated and run
        String testValue = "test";
        assertNotNull(testValue);
        assertEquals("test", testValue);

    public void test_basicAssertion() {
        assertTrue(true);
        assertFalse(false);
        assertNotNull("test");
        assertEquals(1, 1);
    }

    // Test placeholder for future implementation
    public void test_placeholder() {
        // This test verifies the test class can be instantiated and run
        String testValue = "test";
        assertNotNull(testValue);
        assertEquals("test", testValue);

    public void test_basicAssertion() {
        assertTrue(true);
        assertFalse(false);
        assertNotNull("test");
        assertEquals(1, 1);
    }

    // Test placeholder for future implementation
    public void test_placeholder() {
        // This test verifies the test class can be instantiated and run
        String testValue = "test";
        assertNotNull(testValue);
        assertEquals("test", testValue);

    int size = getNumElements();

    assertThrows(
        NullPointerException.class, () -> multimap().putAll(k3(), newArrayList(null, v3())));

    /*
     * In principle, a Multimap implementation could add e3 first before failing on the null. But
     * that seems unlikely enough to be worth complicating the test over, especially if there's any
     * chance that a permissive test could mask a bug.
     */

        // per bouncycastle
        // <li>1: K(i) := PRF( KI, [i]_2 || Label || 0x00 || Context || [L]_2 ) with the counter at the very beginning
        // of the fixedInputData (The default implementation has this format)</li>
        // with the parameters
        // <li>1. KDFCounterParameters(ki, null, "Label || 0x00 || Context || [L]_2]", 8);

        // all fixed inputs go into the suffix:
        // + label