N

func N(num any, tolerance ...any) TestDeep

N operator compares a numeric data against num ± tolerance. If tolerance is missing, it defaults to 0. num and tolerance must be the same type as the compared value, except if BeLax config flag is true.

td.Cmp(t, 12.2, td.N(12., 0.3)) // succeeds
td.Cmp(t, 12.2, td.N(12., 0.1)) // fails

TypeBehind method returns the reflect.Type of num.

See also N godoc.

Example

Base example 
	t := &testing.T{}

	got := 1.12345

	ok := td.Cmp(t, got, td.N(1.1234, 0.00006),
		"checks %v = 1.1234 ± 0.00006", got)
	fmt.Println(ok)

	// Output:
	// true

CmpN shortcut

func CmpN(t TestingT, got, num , tolerance any, args ...any) bool

CmpN is a shortcut for:

td.Cmp(t, got, td.N(num, tolerance), args...)

See above for details.

N optional parameter tolerance is here mandatory. 0 value should be passed to mimic its absence in original N call.

Returns true if the test is OK, false if it fails.

If t is a *T then its Config field is inherited.

args… are optional and allow to name the test. This name is used in case of failure to qualify the test. If len(args) > 1 and the first item of args is a string and contains a ‘%’ rune then fmt.Fprintf is used to compose the name, else args are passed to fmt.Fprint. Do not forget it is the name of the test, not the reason of a potential failure.

See also CmpN godoc.

Example

Base example 
	t := &testing.T{}

	got := 1.12345

	ok := td.CmpN(t, got, 1.1234, 0.00006,
		"checks %v = 1.1234 ± 0.00006", got)
	fmt.Println(ok)

	// Output:
	// true

T.N shortcut

func (t *T) N(got, num , tolerance any, args ...any) bool

N is a shortcut for:

t.Cmp(got, td.N(num, tolerance), args...)

See above for details.

N optional parameter tolerance is here mandatory. 0 value should be passed to mimic its absence in original N call.

Returns true if the test is OK, false if it fails.

args… are optional and allow to name the test. This name is used in case of failure to qualify the test. If len(args) > 1 and the first item of args is a string and contains a ‘%’ rune then fmt.Fprintf is used to compose the name, else args are passed to fmt.Fprint. Do not forget it is the name of the test, not the reason of a potential failure.

See also T.N godoc.

Example

Base example 
	t := td.NewT(&testing.T{})

	got := 1.12345

	ok := t.N(got, 1.1234, 0.00006,
		"checks %v = 1.1234 ± 0.00006", got)
	fmt.Println(ok)

	// Output:
	// true