ContentOutputStream cos = new ContentOutputStream(10, Curl.tmpDir);
        cos.write(new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0 });
        assertFalse(cos.done);
        assertFalse(cos.isInMemory());
        cos.close();
        assertFalse(cos.done);
        assertFalse(cos.getFile().exists());
    }

    @Test
    public void testThresholdZero() throws IOException {

  public void testSpliteratorNullable() {
    initCollectionWithNullElement();
    assertFalse(collection.spliterator().hasCharacteristics(Spliterator.NONNULL));
  }

  @CollectionFeature.Require(SUPPORTS_ADD)
  public void testSpliteratorNotImmutable_collectionAllowsAdd() {
    // If add is supported, verify that IMMUTABLE is not reported.
    assertFalse(collection.spliterator().hasCharacteristics(Spliterator.IMMUTABLE));
  }

      Entry<V, K> reversed = reverseEntry(entry);
      BiMap<V, K> inv = getMap().inverse();
      assertFalse(
          "Inverse should not contain entry " + reversed, inv.entrySet().contains(reversed));
      assertFalse(
          "Inverse should not contain key " + reversed.getKey(),
          inv.containsKey(reversed.getKey()));
      assertFalse(
          "Inverse should not contain value " + reversed.getValue(),

    assertFalse(control("foo", 1).equals(entry("foo", 2)));
    assertFalse(foo1.equals(control("bar", 1)));
    assertFalse(foo1.equals(new Object()));
    assertFalse(foo1.equals(null));
  }

  public void testEqualsNull() {
    assertEquals(control(NK, 1), entry(NK, 1));
    assertEquals(control("bar", NV), entry("bar", NV));
    assertFalse(control(NK, 1).equals(entry(NK, 2)));

    // Later attempts to set the future should return false.
    assertFalse(future.set("x"));
    assertFalse(future.setException(new Exception("bar")));
    assertFalse(future.setFuture(SettableFuture.create()));
    // Check that the future has been set properly.
    assertFalse(future.isDone());
    assertFalse(future.isCancelled());
    assertThrows(TimeoutException.class, () -> future.get(0, MILLISECONDS));

        TestMessage m = new TestMessage();
        int FLAG_A = 0x01;
        int FLAG_B = 0x02;
        assertFalse(m.isFlagSet(FLAG_A));
        m.setFlag(FLAG_A);
        assertTrue(m.isFlagSet(FLAG_A));
        // unset correctly removes the flag
        m.unsetFlag(FLAG_A);
        assertFalse(m.isFlagSet(FLAG_A));
        // Test another flag
        m.setFlag(FLAG_B);
        assertTrue(m.isFlagSet(FLAG_B));

    public void testIsNumver() throws Exception {
        assertFalse(StringUtil.isNumber(null));
        assertTrue(StringUtil.isNumber("0123456789"));
        assertFalse(StringUtil.isNumber("aaaBBBccc"));
        assertFalse(StringUtil.isNumber("０１２３４５６７８９"));
        assertFalse(StringUtil.isNumber(""));
        assertFalse(StringUtil.isNumber("01234abcdef"));
        assertFalse(StringUtil.isNumber("abcdef01234"));
    }

    /**

        file.createNewFile();
        updateCheckManager.touch(a, remoteRepository, null);

        assertFalse(updateCheckManager.isUpdateRequired(a, remoteRepository));

        assertNull(
                updateCheckManager.readLastUpdated(touchFile, updateCheckManager.getRepositoryKey(remoteRepository)));

        assertFalse(updateCheckManager.getTouchfile(a).exists());
    }

    @Test

        assertFalse(Features.deployBuildPom(properties));
    }

    @Test
    void testDeployBuildPomWithInvalidStringValue() {
        // Test that invalid string values default to false (Boolean.parseBoolean behavior)
        Map<String, Object> properties = Map.of(Constants.MAVEN_DEPLOY_BUILD_POM, "invalid");
        assertFalse(Features.deployBuildPom(properties));
    }

        void testReceivedState() {
            assertFalse(echoResponse.isReceived());

            echoResponse.received();

            assertTrue(echoResponse.isReceived());
        }

        @Test
        @DisplayName("Should track error state")
        void testErrorState() {
            assertFalse(echoResponse.isError());

            echoResponse.error();