func Nil() TestDeep
Nil
operator checks that data is nil
(or is a non-nil
interface,
but containing a nil
pointer.)
See also Nil godoc.
t := &testing.T{}
var got fmt.Stringer // interface
// nil value can be compared directly with nil, no need of Nil() here
ok := Cmp(t, got, nil)
fmt.Println(ok)
// But it works with Nil() anyway
ok = Cmp(t, got, Nil())
fmt.Println(ok)
got = (*bytes.Buffer)(nil)
// In the case of an interface containing a nil pointer, comparing
// with nil fails, as the interface is not nil
ok = Cmp(t, got, nil)
fmt.Println(ok)
// In this case Nil() succeed
ok = Cmp(t, got, Nil())
fmt.Println(ok)
// Output:
// true
// true
// false
// true
func CmpNil(t TestingT, got interface{}, args ...interface{}) bool
CmpNil is a shortcut for:
Cmp(t, got, Nil(), 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 CmpNil godoc.
t := &testing.T{}
var got fmt.Stringer // interface
// nil value can be compared directly with nil, no need of Nil() here
ok := Cmp(t, got, nil)
fmt.Println(ok)
// But it works with Nil() anyway
ok = CmpNil(t, got)
fmt.Println(ok)
got = (*bytes.Buffer)(nil)
// In the case of an interface containing a nil pointer, comparing
// with nil fails, as the interface is not nil
ok = Cmp(t, got, nil)
fmt.Println(ok)
// In this case Nil() succeed
ok = CmpNil(t, got)
fmt.Println(ok)
// Output:
// true
// true
// false
// true
func (t *T) Nil(got interface{}, args ...interface{}) bool
Nil
is a shortcut for:
t.Cmp(got, Nil(), 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.Nil godoc.
t := NewT(&testing.T{})
var got fmt.Stringer // interface
// nil value can be compared directly with nil, no need of Nil() here
ok := t.Cmp(got, nil)
fmt.Println(ok)
// But it works with Nil() anyway
ok = t.Nil(got)
fmt.Println(ok)
got = (*bytes.Buffer)(nil)
// In the case of an interface containing a nil pointer, comparing
// with nil fails, as the interface is not nil
ok = t.Cmp(got, nil)
fmt.Println(ok)
// In this case Nil() succeed
ok = t.Nil(got)
fmt.Println(ok)
// Output:
// true
// true
// false
// true