github.com/bobyang007/helper@v1.1.3/reflecth/assert_test.go (about)

     1  package reflecth
     2  
     3  import (
     4  	"errors"
     5  	"testing"
     6  )
     7  
     8  func TestTypeAssert(t *testing.T) {
     9  	b := true
    10  	var i interface{} = b
    11  	// interface with bool to bool
    12  	if r, ok, valid := TypeAssert(ValueOfPtr(&i), TypeBool()); !valid || !ok || r.Interface() != b {
    13  		t.Errorf("expect %v %v %v, got %v %v %v", b, true, true, r.Interface(), ok, valid)
    14  	}
    15  	// interface with bool to int
    16  	if _, ok, valid := TypeAssert(ValueOfPtr(&i), TypeInt()); !valid || ok {
    17  		t.Errorf("expect %v %v, got %v %v", false, true, ok, valid)
    18  	}
    19  	// interface woth bool to interface
    20  	if r, ok, valid := TypeAssert(ValueOfPtr(&i), TypeOfPtr(&i)); !valid || !ok || r.Interface() != b {
    21  		t.Errorf("expect %v %v %v, got %v %v %v", b, true, true, r.Interface(), ok, valid)
    22  	}
    23  
    24  	e := errors.New("str")
    25  	i = e
    26  	// error interface with error to interface
    27  	if r, ok, valid := TypeAssert(ValueOfPtr(&e), TypeOfPtr(&i)); !valid || !ok || r.Interface() != e {
    28  		t.Errorf("expect %v %v %v, got %v %v %v", e, true, true, r.Interface(), ok, valid)
    29  	}
    30  	// interface with error to error interface
    31  	if r, ok, valid := TypeAssert(ValueOfPtr(&i), TypeOfPtr(&e)); !valid || !ok || r.Interface() != e {
    32  		t.Errorf("expect %v %v %v, got %v %v %v", e, true, true, r.Interface(), ok, valid)
    33  	}
    34  	// error interface with error to bool
    35  	if _, ok, valid := TypeAssert(ValueOfPtr(&e), TypeBool()); valid || ok {
    36  		t.Errorf("expect %v %v, got %v %v", false, false, ok, valid)
    37  	}
    38  	i = b
    39  	// interface with error to error interface
    40  	if _, ok, valid := TypeAssert(ValueOfPtr(&i), TypeOfPtr(&e)); !valid || ok {
    41  		t.Errorf("expect %v %v, got %v %v", false, true, ok, valid)
    42  	}
    43  
    44  	i = nil
    45  	// interface with nil to bool
    46  	if _, ok, valid := TypeAssert(ValueOfPtr(&i), TypeBool()); !valid || ok {
    47  		t.Errorf("expect %v %v, got %v %v", false, true, ok, valid)
    48  	}
    49  }