Lt

func Lt(maxExpectedValue any) TestDeep

Lt operator checks that data is lesser than maxExpectedValue. maxExpectedValue can be any numeric, string, time.Time (or assignable) value or implements at least one of the two following methods:

func (a T) Less(b T) bool   // returns true if a < b
func (a T) Compare(b T) int // returns -1 if a < b, 1 if a > b, 0 if a == b

maxExpectedValue must be the same type as the compared value, except if BeLax config flag is true.

td.Cmp(t, 17, td.Lt(19))
before := time.Now()
td.Cmp(t, before, td.Lt(time.Now()))

TypeBehind method returns the reflect.Type of maxExpectedValue.

See also Lt godoc.

Examples

Int example 
	t := &testing.T{}

	got := 156

	ok := td.Cmp(t, got, td.Lt(157), "checks %v is < 157", got)
	fmt.Println(ok)

	ok = td.Cmp(t, got, td.Lt(156), "checks %v is < 156", got)
	fmt.Println(ok)

	// Output:
	// true
	// false
String example 
	t := &testing.T{}

	got := "abc"

	ok := td.Cmp(t, got, td.Lt("abd"), `checks "%v" is < "abd"`, got)
	fmt.Println(ok)

	ok = td.Cmp(t, got, td.Lt("abc"), `checks "%v" is < "abc"`, got)
	fmt.Println(ok)

	// Output:
	// true
	// false

CmpLt shortcut

func CmpLt(t TestingT, got, maxExpectedValue any, args ...any) bool

CmpLt is a shortcut for:

td.Cmp(t, got, td.Lt(maxExpectedValue), args...)

See above for details.

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 CmpLt godoc.

Examples

Int example 
	t := &testing.T{}

	got := 156

	ok := td.CmpLt(t, got, 157, "checks %v is < 157", got)
	fmt.Println(ok)

	ok = td.CmpLt(t, got, 156, "checks %v is < 156", got)
	fmt.Println(ok)

	// Output:
	// true
	// false
String example 
	t := &testing.T{}

	got := "abc"

	ok := td.CmpLt(t, got, "abd", `checks "%v" is < "abd"`, got)
	fmt.Println(ok)

	ok = td.CmpLt(t, got, "abc", `checks "%v" is < "abc"`, got)
	fmt.Println(ok)

	// Output:
	// true
	// false

T.Lt shortcut

func (t *T) Lt(got, maxExpectedValue any, args ...any) bool

Lt is a shortcut for:

t.Cmp(got, td.Lt(maxExpectedValue), args...)

See above for details.

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.Lt godoc.

Examples

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

	got := 156

	ok := t.Lt(got, 157, "checks %v is < 157", got)
	fmt.Println(ok)

	ok = t.Lt(got, 156, "checks %v is < 156", got)
	fmt.Println(ok)

	// Output:
	// true
	// false
String example 
	t := td.NewT(&testing.T{})

	got := "abc"

	ok := t.Lt(got, "abd", `checks "%v" is < "abd"`, got)
	fmt.Println(ok)

	ok = t.Lt(got, "abc", `checks "%v" is < "abc"`, got)
	fmt.Println(ok)

	// Output:
	// true
	// false