assertThat(transformation.isHorizontal()).isFalse();
    assertThat(transformation.isVertical()).isFalse();
    assertThat(transformation.slope()).isNaN();
    assertThat(transformation.transform(0.0)).isNaN();
    assertThat(transformation.inverse()).isSameInstanceAs(transformation);
  }

  /**
   * Creates a {@link PairedStats} from with the given lists of {@code x} and {@code y} values,

import static com.google.common.primitives.Doubles.isFinite;
import static java.lang.Double.NaN;
import static java.lang.Double.doubleToLongBits;
import static java.lang.Double.isNaN;

import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import com.google.common.base.MoreObjects;
import com.google.common.base.Objects;
import java.io.Serializable;

	}
	if dummys.Get("someFloat").Equal(dummys.Get("someInt")) {
		t.Errorf("different values are not unequal")
	}
}

func TestNaN(t *testing.T) {
	if !dummys.Get("NaN").IsNaN() {
		t.Errorf("JS NaN is not NaN")
	}
	if !js.ValueOf(math.NaN()).IsNaN() {
		t.Errorf("Go NaN is not NaN")
	}
	if dummys.Get("NaN").Equal(dummys.Get("NaN")) {
		t.Errorf("NaN is equal to NaN")
	}
}

func TestUndefined(t *testing.T) {

  //   - thinks +0.0 and -0.0 are 0 DLP's apart.
  bool AlmostEquals(const FloatingPoint& rhs) const {
    // The IEEE standard says that any comparison operation involving
    // a NAN must return false.
    if (is_nan() || rhs.is_nan()) return false;

    return DistanceBetweenSignAndMagnitudeNumbers(u_.bits_, rhs.u_.bits_)
        <= kMaxUlps;
  }

 private:
  // The data type used to store the actual floating-point number.

func Null() Value {
	return valueNull
}

// IsNull reports whether v is the JavaScript value "null".
func (v Value) IsNull() bool {
	return v.ref == valueNull.ref
}

// IsNaN reports whether v is the JavaScript value "NaN".
func (v Value) IsNaN() bool {
	return v.ref == valueNaN.ref
}

// Global returns the JavaScript global object, usually "window" or "global".
func Global() Value {
	return valueGlobal
}

func equal[T comparable](v1, v2 T) bool {
	return v1 == v2
}

// equalNaN is like == except that all NaNs are equal.
func equalNaN[T comparable](v1, v2 T) bool {
	isNaN := func(f T) bool { return f != f }
	return v1 == v2 || (isNaN(v1) && isNaN(v2))
}

// offByOne returns true if integers v1 and v2 differ by 1.
func offByOne(v1, v2 int) bool {
	return v1 == v2+1 || v1 == v2-1
}

func TestEqualFunc(t *testing.T) {

  //   - thinks +0.0 and -0.0 are 0 DLP's apart.
  bool AlmostEquals(const FloatingPoint& rhs) const {
    // The IEEE standard says that any comparison operation involving
    // a NAN must return false.
    if (is_nan() || rhs.is_nan()) return false;

    return DistanceBetweenSignAndMagnitudeNumbers(u_.bits_, rhs.u_.bits_)
        <= kMaxUlps;
  }

 private:
  // The data type used to store the actual floating-point number.

	for _, test := range atofRandomTests {
		x, _ := ParseFloat(test.s, 64)
		switch {
		default:
			t.Errorf("number %s badly parsed as %b (expected %b)", test.s, x, test.x)
		case x == test.x:
		case math.IsNaN(test.x) && math.IsNaN(x):
		}
	}
	t.Logf("tested %d random numbers", len(atofRandomTests))
}

var roundTripCases = []struct {
	f float64
	s string
}{
	// Issue 2917.

		_, err := rand.Read(b)
		if err != nil {
			panic(fmt.Sprintf("rand.Read failed: %v", err))
		}
		// and turn it into a float64
		x := math.Float64frombits(binary.LittleEndian.Uint64(b))
		if math.IsNaN(x) || math.IsInf(x, 0) {
			continue
		}
		x = math.Abs(x)
		if x < 0x1p-1000 { // avoid underflow patterns
			continue
		}
		frac, _ := math.Frexp(x) // 52 bits of randomness
		return frac*2 - 1
	}

		Tf    = -1.21486290535849611461e-01 // 0xBFBF19B9BCC38A42
		// Tt = -(tail of Tf)
		Tt = -3.63867699703950536541e-18 // 0xBC50C7CAA48A971F
	)
	// special cases
	sign = 1
	switch {
	case IsNaN(x):
		lgamma = x
		return
	case IsInf(x, 0):
		lgamma = x
		return
	case x == 0:
		lgamma = Inf(1)
		return
	}

	neg := false
	if x < 0 {
		x = -x
		neg = true
	}