int originalCount = getMultiset().count(e0());
    assertEquals("old count", originalCount, getMultiset().remove(e0(), 0));
    expectUnchanged();
  }

  @CollectionSize.Require(absent = ZERO)
  @CollectionFeature.Require(SUPPORTS_REMOVE)
  public void testRemove_occurrences_present() {
    assertEquals(
        "multiset.remove(present, 2) didn't return the old count",
        1,
        getMultiset().remove(e0(), 2));

    int originalCount = getMultiset().count(e0());
    assertEquals("old count", originalCount, getMultiset().remove(e0(), 0));
    expectUnchanged();
  }

  @CollectionSize.Require(absent = ZERO)
  @CollectionFeature.Require(SUPPORTS_REMOVE)
  public void testRemove_occurrences_present() {
    assertEquals(
        "multiset.remove(present, 2) didn't return the old count",
        1,
        getMultiset().remove(e0(), 2));

        // Poll all items
        int count = 0;
        while (true) {
            final OpenSearchUrlQueue polled = urlQueueService.poll(sessionId);
            if (polled == null) {
                break;
            }
            count++;
            assertTrue(polled.getUrl().startsWith("http://www.example.com/page"));
        }

        assertEquals(5, count);
        urlQueueService.delete(sessionId);

        assertEquals(0x1234L, resp.getCount(), "Count should reflect value from buffer");
    }

    @Test
    public void testToStringContainsCount() {
        // Little-endian: count = 512 (0x0200)
        byte[] buf = new byte[12];
        buf[0] = 0x00;
        buf[1] = 0x02; // count = 512 in little-endian
        resp.readParameterWordsWireFormat(buf, 0);

  void setCountCheckReturnValue(E element, int count) {
    assertEquals(
        "multiset.setCount() should return the old count",
        getMultiset().count(element),
        setCount(element, count));
  }

  @Override
  void setCountNoCheckReturnValue(E element, int count) {
    setCount(element, count);
  }

  @CanIgnoreReturnValue
  private int setCount(E element, int count) {

        setScopedVertices(scopedVertices);

        this.versionedVertices = scopedVertices || versionedVertices;
        this.scopedVertices = scopedVertices;

        int count = countNodes(tree);

        init(count, count + (count / 2));

        processTreeNodes(null, tree, 0, 0);
    }
    // ------------------------------------------------------------------------

    getMultiset()
        .forEachEntry((element, count) -> actual.add(Multisets.immutableEntry(element, count)));
    assertEquals(expected, actual);
  }

  public void testForEachEntryDuplicates() {
    initThreeCopies();
    List<Entry<E>> expected = singletonList(Multisets.immutableEntry(e0(), 3));
    List<Entry<E>> actual = new ArrayList<>();
    getMultiset()

  public void testCount() {
    assertThat(EMPTY_STATS_VARARGS.count()).isEqualTo(0);
    assertThat(EMPTY_STATS_ITERABLE.count()).isEqualTo(0);
    assertThat(ONE_VALUE_STATS.count()).isEqualTo(1);
    assertThat(TWO_VALUES_STATS.count()).isEqualTo(2);
    assertThat(MANY_VALUES_STATS_VARARGS.count()).isEqualTo(MANY_VALUES_COUNT);
    assertThat(MANY_VALUES_STATS_ITERABLE.count()).isEqualTo(MANY_VALUES_COUNT);

        final int start = dstIndex;

        dst[dstIndex] = (byte) 0x01; /* BufferFormat */
        dstIndex++;
        writeInt2(count, dst, dstIndex); /* DataLength? */
        dstIndex += 2;
        System.arraycopy(b, off, dst, dstIndex, count);
        dstIndex += count;

        return dstIndex - start;
    }

    @Override
    int readParameterWordsWireFormat(final byte[] buffer, final int bufferIndex) {

from fastapi.testclient import TestClient


@pytest.fixture(name="call_counter")
def call_counter_fixture():
    return {"count": 0}


@pytest.fixture(name="app")
def app_fixture(call_counter: dict[str, int]):
    def get_db():
        call_counter["count"] += 1
        return f"db_{call_counter['count']}"

    def get_user(db: Annotated[str, Depends(get_db)]):
        return "user"

    app = FastAPI()