// This is for tests only.
func RemoveAll() {
	vars.keysMu.Lock()
	defer vars.keysMu.Unlock()
	for _, k := range vars.keys {
		vars.m.Delete(k)
	}
	vars.keys = nil
}

func TestNil(t *testing.T) {
	RemoveAll()
	val := Get("missing")
	if val != nil {
		t.Errorf("got %v, want nil", val)
	}
}

func TestInt(t *testing.T) {
	RemoveAll()
	reqs := NewInt("requests")

  /* The names of the expected method that tests null checks. */
  private static final ImmutableList<String> NULL_TEST_METHOD_NAMES =
      ImmutableList.of(
          "testNulls", "testNull",
          "testNullPointers", "testNullPointer",
          "testNullPointerExceptions", "testNullPointerException");

  /* The names of the expected method that tests serializable. */

          public void tearDown() {
            Thread.interrupted();
          }
        });
  }

  @Override
  protected void tearDown() {
    tearDownStack.runTearDown();
  }

  public void testNull() throws Exception {
    new NullPointerTester()
        .setDefault(CountDownLatch.class, new CountDownLatch(0))
        .setDefault(Semaphore.class, new Semaphore(999))

	for _, n := range mulBenchSizes {
		if isRaceBuilder && n > 1e3 {
			continue
		}
		b.Run(fmt.Sprintf("%d", n), func(b *testing.B) {
			benchmarkNatMul(b, n)
		})
	}
}

func TestNLZ(t *testing.T) {
	var x Word = _B >> 1
	for i := 0; i <= _W; i++ {
		if int(nlz(x)) != i {
			t.Errorf("failed at %x: got %d want %d", x, nlz(x), i)
		}
		x >>= 1
	}
}

type shiftTest struct {

func TestCapWithSliceAndWrittenData(t *testing.T) {
	buf := NewBuffer(make([]byte, 0, 10))
	buf.Write([]byte("test"))
	n := buf.Cap()
	if n != 10 {
		t.Errorf("expected 10, got %d", n)
	}
}

func TestNil(t *testing.T) {
	var b *Buffer
	if b.String() != "<nil>" {
		t.Errorf("expected <nil>; got %q", b.String())
	}
}

func TestReadFrom(t *testing.T) {
	var buf Buffer
	for i := 3; i < 30; i += 3 {

	Draw(a, image.Rect(0, 0, 1, 1), b, image.Pt(1, 1), Over)
	if !eq(color.RGBA{5, 0, 0, 5}, a.At(0, 0)) {
		t.Errorf("non-zero src pt: want %v got %v", color.RGBA{5, 0, 0, 5}, a.At(0, 0))
	}
}

func TestFill(t *testing.T) {
	rr := []image.Rectangle{
		image.Rect(0, 0, 0, 0),
		image.Rect(0, 0, 40, 30),
		image.Rect(10, 0, 40, 30),
		image.Rect(0, 20, 40, 30),
		image.Rect(10, 20, 40, 30),

}

// Test multiple calls to syncClaim/syncVolume and periodic sync of all
// volume/claims. The test follows this pattern:
//  0. Load the controller with initial data.
//  1. Call controllerTest.testCall() once as in TestSync()
//  2. For all volumes/claims changed by previous syncVolume/syncClaim calls,
//     call appropriate syncVolume/syncClaim (simulating "volume/claim changed"

				}
			}
		}()
		return ch
	}
}

func (fp *fakePoller) GetwaitFunc() waitFunc {
	fp.wg.Add(1)
	return fakeTicker(fp.max, &fp.used, fp.wg.Done)
}

func TestPoll(t *testing.T) {
	invocations := 0
	f := ConditionWithContextFunc(func(ctx context.Context) (bool, error) {
		invocations++
		return true, nil
	})
	fp := fakePoller{max: 1}

}

func checkMul(a, b []byte) bool {
	var x, y, z1 Int
	x.SetBytes(a)
	y.SetBytes(b)
	z1.Mul(&x, &y)

	var z2 Int
	z2.SetBytes(mulBytes(a, b))

	return z1.Cmp(&z2) == 0
}

func TestMul(t *testing.T) {
	if err := quick.Check(checkMul, nil); err != nil {
		t.Error(err)
	}
}

var mulRangesZ = []struct {
	a, b int64
	prod string
}{

	for i, test := range tests {
		test.a.Add(test.b)
		if test.a.Cmp(test.expected) != 0 {
			t.Errorf("[%d] Expected %q, got %q", i, test.expected.String(), test.a.String())
		}
	}
}

func TestMul(t *testing.T) {
	tests := []struct {
		a        Quantity
		b        int64
		expected Quantity
		ok       bool
	}{
		{decQuantity(10, 0, DecimalSI), 10, decQuantity(100, 0, DecimalSI), true},