func TestIsFloat64Integer(t *testing.T) {
// fails. MaxUint64 is to large for JS anyway, so we can ignore it here.
//assert.True(t, isFloat64AnInteger(float64(math.MaxUint64)))
assert.False(t, isFloat64AnInteger(math.MaxInt64))
assert.False(t, isFloat64AnInteger(1<<62))
assert.False(t, isFloat64AnInteger(math.MinInt64))
assert.True(t, isFloat64AnInteger(100100100100))
assert.True(t, isFloat64AnInteger(-100100100100))
assert.True(t, isFloat64AnInteger(100100100))
assert.True(t, isFloat64AnInteger(-100100100))
assert.True(t, isFloat64AnInteger(100100))
assert.True(t, isFloat64AnInteger(-100100))
assert.True(t, isFloat64AnInteger(100))
assert.True(t, isFloat64AnInteger(-100))
assert.True(t, isFloat64AnInteger(-0))
assert.True(t, isFloat64AnInteger(-1))
assert.True(t, isFloat64AnInteger(1))
assert.True(t, isFloat64AnInteger(0))
assert.True(t, isFloat64AnInteger(77))
assert.True(t, isFloat64AnInteger(-77))
assert.True(t, isFloat64AnInteger(1e10))
assert.True(t, isFloat64AnInteger(-1e10))
assert.True(t, isFloat64AnInteger(100100100.0))
assert.True(t, isFloat64AnInteger(-100100100.0))
assert.False(t, isFloat64AnInteger(100100100100.1))
assert.False(t, isFloat64AnInteger(-100100100100.1))
assert.False(t, isFloat64AnInteger(math.MaxFloat64))
assert.False(t, isFloat64AnInteger(-math.MaxFloat64))
assert.False(t, isFloat64AnInteger(1.1))
assert.False(t, isFloat64AnInteger(-1.1))
assert.False(t, isFloat64AnInteger(1.000000000001))
assert.False(t, isFloat64AnInteger(-1.000000000001))
assert.False(t, isFloat64AnInteger(1e-10))
assert.False(t, isFloat64AnInteger(-1e-10))
assert.False(t, isFloat64AnInteger(1.001))
assert.False(t, isFloat64AnInteger(-1.001))
assert.False(t, isFloat64AnInteger(0.0001))
assert.False(t, isFloat64AnInteger(1<<62))
assert.False(t, isFloat64AnInteger(math.MinInt64))
assert.False(t, isFloat64AnInteger(math.MaxInt64))
assert.False(t, isFloat64AnInteger(-1<<62))
assert.False(t, isFloat64AnInteger(1e-10))
assert.False(t, isFloat64AnInteger(-1e-10))
assert.False(t, isFloat64AnInteger(1.000000000001))
assert.False(t, isFloat64AnInteger(-1.000000000001))
assert.False(t, isFloat64AnInteger(4.611686018427387904e7))
assert.False(t, isFloat64AnInteger(-4.611686018427387904e7))
}
func TestIsFloat64IntegerA(t *testing.T) {
assert.False(t, isFloat64AnInteger(math.Inf(+1)))
assert.False(t, isFloat64AnInteger(math.Inf(-1)))
assert.False(t, isFloat64AnInteger(math.NaN()))
assert.False(t, isFloat64AnInteger(math.Float64frombits((1<<11-1)<<52|1)))
assert.True(t, isFloat64AnInteger(float64(0.0)))
assert.True(t, isFloat64AnInteger(-float64(0.0)))
assert.False(t, isFloat64AnInteger(float64(0.5)))
assert.True(t, isFloat64AnInteger(float64(1.0)))
assert.True(t, isFloat64AnInteger(-float64(1.0)))
assert.False(t, isFloat64AnInteger(float64(1.1)))
assert.True(t, isFloat64AnInteger(float64(131.0)))
assert.True(t, isFloat64AnInteger(-float64(131.0)))
assert.True(t, isFloat64AnInteger(float64(1<<52-1)))
assert.True(t, isFloat64AnInteger(-float64(1<<52-1)))
assert.True(t, isFloat64AnInteger(float64(1<<52)))
assert.True(t, isFloat64AnInteger(-float64(1<<52)))
assert.True(t, isFloat64AnInteger(float64(1<<53-1)))
assert.True(t, isFloat64AnInteger(-float64(1<<53-1)))
assert.True(t, isFloat64AnInteger(float64(1<<53-1)))
assert.False(t, isFloat64AnInteger(float64(1<<53)))
assert.False(t, isFloat64AnInteger(-float64(1<<53)))
assert.False(t, isFloat64AnInteger(float64(1<<63)))
assert.False(t, isFloat64AnInteger(-float64(1<<63)))
assert.False(t, isFloat64AnInteger(math.Nextafter(float64(1<<63), math.MaxFloat64)))
assert.False(t, isFloat64AnInteger(-math.Nextafter(float64(1<<63), math.MaxFloat64)))
assert.False(t, isFloat64AnInteger(float64(1<<70+3<<21)))
assert.False(t, isFloat64AnInteger(-float64(1<<70+3<<21)))
assert.False(t, isFloat64AnInteger(math.Nextafter(float64(9007199254740991.0), math.MaxFloat64)))
assert.True(t, isFloat64AnInteger(float64(9007199254740991.0)))
assert.True(t, isFloat64AnInteger(float64(-9007199254740991.0)))
assert.False(t, isFloat64AnInteger(math.Nextafter(float64(-9007199254740991.0), -math.MaxFloat64)))
}