func TestQuantity(t *testing.T) {
	twelveMi := resource.MustParse("12Mi")
	trueVal := types.Bool(true)
	falseVal := types.Bool(false)

	cases := []struct {
		name               string
		expr               string
		expectValue        ref.Val
		expectedCompileErr []string
		expectedRuntimeErr string
	}{
		{
			name:        "parse",
			expr:        `quantity("12Mi")`,
			expectValue: apiservercel.Quantity{Quantity: &twelveMi},

}

// Format lists the three possible formattings of a quantity.
type Format string

const (
	DecimalExponent = Format("DecimalExponent") // e.g., 12e6
	BinarySI        = Format("BinarySI")        // e.g., 12Mi (12 * 2^20)
	DecimalSI       = Format("DecimalSI")       // e.g., 12M  (12 * 10^6)
)

// MustParse turns the given string into a quantity or panics; for tests
// or other cases where you know the string is valid.

		name                string
		expr                string
		expectEstimatedCost checker.CostEstimate
		expectRuntimeCost   uint64
	}{
		{
			name:                "path",
			expr:                `quantity("12Mi")`,
			expectEstimatedCost: checker.CostEstimate{Min: 1, Max: 1},
			expectRuntimeCost:   1,
		},
		{
			name:                "isQuantity",
			expr:                `isQuantity("20")`,

		{FloatLit, "0p0", "0p0", "'p' exponent requires hexadecimal mantissa"},
		{FloatLit, "1.0P-1", "1.0P-1", "'P' exponent requires hexadecimal mantissa"},

		{ImagLit, "0.i", "0.i", ""},
		{ImagLit, ".123i", ".123i", ""},
		{ImagLit, "123.123i", "123.123i", ""},
		{ImagLit, "123e+0i", "123e+0i", ""},
		{ImagLit, "123.E-10i", "123.E-10i", ""},
		{ImagLit, ".123E+10i", ".123E+10i", ""},

		// hexadecimals
		{IntLit, "0x0", "0x0", ""},

		{token.FLOAT, "1.0P-1", "1.0P-1", "'P' exponent requires hexadecimal mantissa"},

		{token.IMAG, "0.i", "0.i", ""},
		{token.IMAG, ".123i", ".123i", ""},
		{token.IMAG, "123.123i", "123.123i", ""},
		{token.IMAG, "123e+0i", "123e+0i", ""},
		{token.IMAG, "123.E-10i", "123.E-10i", ""},
		{token.IMAG, ".123E+10i", ".123E+10i", ""},

		// hexadecimals

	_ = 0x_dead_cafe.p-10
	_ = 0x12_34.p1_2_3
	_ = 0x1_2_3_4.p-1_2_3

	// imaginaries
	_ = 0i
	_ = 0i
	_ = 8i
	_ = 0i
	_ = 123i
	_ = 123i
	_ = 56789i
	_ = 1234i
	_ = 1234567i

	_ = 0i
	_ = 0i
	_ = 8i
	_ = 0i
	_ = 123i
	_ = 123i
	_ = 56_789i
	_ = 1_234i
	_ = 1_234_567i

	_ = 0.i
	_ = 123.i
	_ = 0123.i
	_ = 000123.i

	_ = 0e0i
	_ = 123e0i

	_	= 0x_dead_cafe.p-10
	_	= 0x12_34.p1_2_3
	_	= 0x1_2_3_4.p-1_2_3

	// imaginaries
	_	= 0i
	_	= 0i
	_	= 8i
	_	= 0i
	_	= 123i
	_	= 123i
	_	= 56789i
	_	= 1234i
	_	= 1234567i

	_	= 0i
	_	= 0i
	_	= 8i
	_	= 0i
	_	= 123i
	_	= 123i
	_	= 56_789i
	_	= 1_234i
	_	= 1_234_567i

	_	= 0.i
	_	= 123.i
	_	= 0123.i
	_	= 000123.i

	_	= 0e0i
	_	= 123e0i

		{"+0e-0+0e-0i", 0, nil},
		{"0e+0+0e+0i", 0, nil},
		{"-0e+0-0e+0i", 0, nil},

		// Regular non-zeroes
		{"0.1", 0.1, nil},
		{"0.1i", 0 + 0.1i, nil},
		{"0.123", 0.123, nil},
		{"0.123i", 0 + 0.123i, nil},
		{"0.123+0.123i", 0.123 + 0.123i, nil},
		{"99", 99, nil},
		{"+99", 99, nil},
		{"-99", -99, nil},
		{"+1i", 1i, nil},
		{"-1i", -1i, nil},
		{"+3+1i", 3 + 1i, nil},
		{"30+3i", 30 + 3i, nil},

	assert(0X_dead_cafe.p-10 == 0xdeadcafe.p-10)
	assert(0x12_34.P1_2_3 == 0x1234.p123)

	assert(1_234i == 1234i)
	assert(1_234_567i == 1234567i)

	assert(0.i == 0i)
	assert(123.i == 123i)
	assert(0123.i == 123i)

	assert(0.e+1i == 0i)
	assert(123.E-1_0i == 123e-10i)
	assert(01_23.e123i == 123e123i)

// Test that it is so even when numbers are normalized.
func TestNodeNoModify(t *testing.T) {
	const (
		src    = "package p\n\nconst _ = 0000000123i\n"
		golden = "package p\n\nconst _ = 123i\n"
	)

	fset := token.NewFileSet()
	file, err := parser.ParseFile(fset, "", src, parser.ParseComments)
	if err != nil {
		t.Fatal(err)
	}

	// Capture original address and value of a BasicLit node