simplify testing

testing/assert/pointer.go

@@ -0,0 +1,38 @@
+package assert
+
+import (
+	"github.com/v2ray/v2ray-core/common/serial"
+)
+
+func (this *Assert) Pointer(value interface{}) *PointerSubject {
+	return &PointerSubject{
+		Subject: Subject{
+			a:    this,
+			disp: serial.PointerToString(value),
+		},
+		value: value,
+	}
+}
+
+type PointerSubject struct {
+	Subject
+	value interface{}
+}
+
+func (subject *PointerSubject) Equals(expectation interface{}) {
+	if subject.value != expectation {
+		subject.Fail("is equal to", serial.PointerToString(expectation))
+	}
+}
+
+func (subject *PointerSubject) IsNil() {
+	if subject.value != nil {
+		subject.Fail("is", "nil")
+	}
+}
+
+func (subject *PointerSubject) IsNotNil() {
+	if subject.value == nil {
+		subject.Fail("is not", "nil")
+	}
+}