You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
449 lines
10 KiB
449 lines
10 KiB
package binary
|
|
|
|
import (
|
|
"bytes"
|
|
"fmt"
|
|
"reflect"
|
|
"testing"
|
|
"time"
|
|
)
|
|
|
|
type SimpleStruct struct {
|
|
String string
|
|
Bytes []byte
|
|
Time time.Time
|
|
}
|
|
|
|
//-------------------------------------
|
|
|
|
type Animal interface{}
|
|
|
|
const (
|
|
AnimalTypeCat = byte(0x01)
|
|
AnimalTypeDog = byte(0x02)
|
|
AnimalTypeSnake = byte(0x03)
|
|
AnimalTypeViper = byte(0x04)
|
|
)
|
|
|
|
// Implements Animal
|
|
type Cat struct {
|
|
SimpleStruct
|
|
}
|
|
|
|
// Implements Animal
|
|
type Dog struct {
|
|
SimpleStruct
|
|
}
|
|
|
|
// Implements Animal
|
|
type Snake []byte
|
|
|
|
// Implements Animal
|
|
type Viper struct {
|
|
Bytes []byte
|
|
}
|
|
|
|
var _ = RegisterInterface(
|
|
struct{ Animal }{},
|
|
ConcreteType{Cat{}, AnimalTypeCat},
|
|
ConcreteType{Dog{}, AnimalTypeDog},
|
|
ConcreteType{Snake{}, AnimalTypeSnake},
|
|
ConcreteType{&Viper{}, AnimalTypeViper},
|
|
)
|
|
|
|
func TestAnimalInterface(t *testing.T) {
|
|
var foo Animal
|
|
|
|
// Type of pointer to Animal
|
|
rt := reflect.TypeOf(&foo)
|
|
fmt.Printf("rt: %v\n", rt)
|
|
|
|
// Type of Animal itself.
|
|
// NOTE: normally this is acquired through other means
|
|
// like introspecting on method signatures, or struct fields.
|
|
rte := rt.Elem()
|
|
fmt.Printf("rte: %v\n", rte)
|
|
|
|
// Get a new pointer to the interface
|
|
// NOTE: calling .Interface() is to get the actual value,
|
|
// instead of reflection values.
|
|
ptr := reflect.New(rte).Interface()
|
|
fmt.Printf("ptr: %v", ptr)
|
|
|
|
// Make a binary byteslice that represents a snake.
|
|
snakeBytes := BinaryBytes(Snake([]byte("snake")))
|
|
snakeReader := bytes.NewReader(snakeBytes)
|
|
|
|
// Now you can read it.
|
|
n, err := new(int64), new(error)
|
|
it := *ReadBinary(ptr, snakeReader, n, err).(*Animal)
|
|
fmt.Println(it, reflect.TypeOf(it))
|
|
}
|
|
|
|
//-------------------------------------
|
|
|
|
type Constructor func() interface{}
|
|
type Instantiator func() (o interface{}, ptr interface{})
|
|
type Validator func(o interface{}, t *testing.T)
|
|
|
|
type TestCase struct {
|
|
Constructor
|
|
Instantiator
|
|
Validator
|
|
}
|
|
|
|
//-------------------------------------
|
|
|
|
func constructBasic() interface{} {
|
|
cat := Cat{
|
|
SimpleStruct{
|
|
String: "String",
|
|
Bytes: []byte("Bytes"),
|
|
Time: time.Unix(123, 0),
|
|
},
|
|
}
|
|
return cat
|
|
}
|
|
|
|
func instantiateBasic() (interface{}, interface{}) {
|
|
return Cat{}, &Cat{}
|
|
}
|
|
|
|
func validateBasic(o interface{}, t *testing.T) {
|
|
cat := o.(Cat)
|
|
if cat.String != "String" {
|
|
t.Errorf("Expected cat.String == 'String', got %v", cat.String)
|
|
}
|
|
if string(cat.Bytes) != "Bytes" {
|
|
t.Errorf("Expected cat.Bytes == 'Bytes', got %X", cat.Bytes)
|
|
}
|
|
if cat.Time.Unix() != 123 {
|
|
t.Errorf("Expected cat.Time == 'Unix(123)', got %v", cat.Time)
|
|
}
|
|
}
|
|
|
|
//-------------------------------------
|
|
|
|
type NilTestStruct struct {
|
|
IntPtr *int
|
|
CatPtr *Cat
|
|
Animal Animal
|
|
}
|
|
|
|
func constructNilTestStruct() interface{} {
|
|
return NilTestStruct{}
|
|
}
|
|
|
|
func instantiateNilTestStruct() (interface{}, interface{}) {
|
|
return NilTestStruct{}, &NilTestStruct{}
|
|
}
|
|
|
|
func validateNilTestStruct(o interface{}, t *testing.T) {
|
|
nts := o.(NilTestStruct)
|
|
if nts.IntPtr != nil {
|
|
t.Errorf("Expected nts.IntPtr to be nil, got %v", nts.IntPtr)
|
|
}
|
|
if nts.CatPtr != nil {
|
|
t.Errorf("Expected nts.CatPtr to be nil, got %v", nts.CatPtr)
|
|
}
|
|
if nts.Animal != nil {
|
|
t.Errorf("Expected nts.Animal to be nil, got %v", nts.Animal)
|
|
}
|
|
}
|
|
|
|
//-------------------------------------
|
|
|
|
type ComplexStruct struct {
|
|
Name string
|
|
Animal Animal
|
|
}
|
|
|
|
func constructComplex() interface{} {
|
|
c := ComplexStruct{
|
|
Name: "Complex",
|
|
Animal: constructBasic(),
|
|
}
|
|
return c
|
|
}
|
|
|
|
func instantiateComplex() (interface{}, interface{}) {
|
|
return ComplexStruct{}, &ComplexStruct{}
|
|
}
|
|
|
|
func validateComplex(o interface{}, t *testing.T) {
|
|
c2 := o.(ComplexStruct)
|
|
if cat, ok := c2.Animal.(Cat); ok {
|
|
validateBasic(cat, t)
|
|
} else {
|
|
t.Errorf("Expected c2.Animal to be of type cat, got %v", reflect.ValueOf(c2.Animal).Elem().Type())
|
|
}
|
|
}
|
|
|
|
//-------------------------------------
|
|
|
|
type ComplexStruct2 struct {
|
|
Cat Cat
|
|
Dog *Dog
|
|
Snake Snake
|
|
Snake2 *Snake
|
|
Viper Viper
|
|
Viper2 *Viper
|
|
}
|
|
|
|
func constructComplex2() interface{} {
|
|
snake_ := Snake([]byte("hiss"))
|
|
snakePtr_ := &snake_
|
|
|
|
c := ComplexStruct2{
|
|
Cat: Cat{
|
|
SimpleStruct{
|
|
String: "String",
|
|
Bytes: []byte("Bytes"),
|
|
},
|
|
},
|
|
Dog: &Dog{
|
|
SimpleStruct{
|
|
String: "Woof",
|
|
Bytes: []byte("Bark"),
|
|
},
|
|
},
|
|
Snake: Snake([]byte("hiss")),
|
|
Snake2: snakePtr_,
|
|
Viper: Viper{Bytes: []byte("hizz")},
|
|
Viper2: &Viper{Bytes: []byte("hizz")},
|
|
}
|
|
return c
|
|
}
|
|
|
|
func instantiateComplex2() (interface{}, interface{}) {
|
|
return ComplexStruct2{}, &ComplexStruct2{}
|
|
}
|
|
|
|
func validateComplex2(o interface{}, t *testing.T) {
|
|
c2 := o.(ComplexStruct2)
|
|
cat := c2.Cat
|
|
if cat.String != "String" {
|
|
t.Errorf("Expected cat.String == 'String', got %v", cat.String)
|
|
}
|
|
if string(cat.Bytes) != "Bytes" {
|
|
t.Errorf("Expected cat.Bytes == 'Bytes', got %X", cat.Bytes)
|
|
}
|
|
|
|
dog := c2.Dog
|
|
if dog.String != "Woof" {
|
|
t.Errorf("Expected dog.String == 'Woof', got %v", dog.String)
|
|
}
|
|
if string(dog.Bytes) != "Bark" {
|
|
t.Errorf("Expected dog.Bytes == 'Bark', got %X", dog.Bytes)
|
|
}
|
|
|
|
snake := c2.Snake
|
|
if string(snake) != "hiss" {
|
|
t.Errorf("Expected string(snake) == 'hiss', got %v", string(snake))
|
|
}
|
|
|
|
snake2 := c2.Snake2
|
|
if string(*snake2) != "hiss" {
|
|
t.Errorf("Expected string(snake2) == 'hiss', got %v", string(*snake2))
|
|
}
|
|
|
|
viper := c2.Viper
|
|
if string(viper.Bytes) != "hizz" {
|
|
t.Errorf("Expected string(viper.Bytes) == 'hizz', got %v", string(viper.Bytes))
|
|
}
|
|
|
|
viper2 := c2.Viper2
|
|
if string(viper2.Bytes) != "hizz" {
|
|
t.Errorf("Expected string(viper2.Bytes) == 'hizz', got %v", string(viper2.Bytes))
|
|
}
|
|
}
|
|
|
|
//-------------------------------------
|
|
|
|
type ComplexStructArray struct {
|
|
Animals []Animal
|
|
}
|
|
|
|
func constructComplexArray() interface{} {
|
|
c := ComplexStructArray{
|
|
Animals: []Animal{
|
|
Cat{
|
|
SimpleStruct{
|
|
String: "String",
|
|
Bytes: []byte("Bytes"),
|
|
},
|
|
},
|
|
Dog{
|
|
SimpleStruct{
|
|
String: "Woof",
|
|
Bytes: []byte("Bark"),
|
|
},
|
|
},
|
|
Snake([]byte("hiss")),
|
|
&Viper{
|
|
Bytes: []byte("hizz"),
|
|
},
|
|
},
|
|
}
|
|
return c
|
|
}
|
|
|
|
func instantiateComplexArray() (interface{}, interface{}) {
|
|
return ComplexStructArray{}, &ComplexStructArray{}
|
|
}
|
|
|
|
func validateComplexArray(o interface{}, t *testing.T) {
|
|
c2 := o.(ComplexStructArray)
|
|
if cat, ok := c2.Animals[0].(Cat); ok {
|
|
if cat.String != "String" {
|
|
t.Errorf("Expected cat.String == 'String', got %v", cat.String)
|
|
}
|
|
if string(cat.Bytes) != "Bytes" {
|
|
t.Errorf("Expected cat.Bytes == 'Bytes', got %X", cat.Bytes)
|
|
}
|
|
} else {
|
|
t.Errorf("Expected c2.Animals[0] to be of type cat, got %v", reflect.ValueOf(c2.Animals[0]).Elem().Type())
|
|
}
|
|
|
|
if dog, ok := c2.Animals[1].(Dog); ok {
|
|
if dog.String != "Woof" {
|
|
t.Errorf("Expected dog.String == 'Woof', got %v", dog.String)
|
|
}
|
|
if string(dog.Bytes) != "Bark" {
|
|
t.Errorf("Expected dog.Bytes == 'Bark', got %X", dog.Bytes)
|
|
}
|
|
} else {
|
|
t.Errorf("Expected c2.Animals[1] to be of type dog, got %v", reflect.ValueOf(c2.Animals[1]).Elem().Type())
|
|
}
|
|
|
|
if snake, ok := c2.Animals[2].(Snake); ok {
|
|
if string(snake) != "hiss" {
|
|
t.Errorf("Expected string(snake) == 'hiss', got %v", string(snake))
|
|
}
|
|
} else {
|
|
t.Errorf("Expected c2.Animals[2] to be of type Snake, got %v", reflect.ValueOf(c2.Animals[2]).Elem().Type())
|
|
}
|
|
|
|
if viper, ok := c2.Animals[3].(*Viper); ok {
|
|
if string(viper.Bytes) != "hizz" {
|
|
t.Errorf("Expected string(viper.Bytes) == 'hizz', got %v", string(viper.Bytes))
|
|
}
|
|
} else {
|
|
t.Errorf("Expected c2.Animals[3] to be of type *Viper, got %v", reflect.ValueOf(c2.Animals[3]).Elem().Type())
|
|
}
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
var testCases = []TestCase{}
|
|
|
|
func init() {
|
|
testCases = append(testCases, TestCase{constructBasic, instantiateBasic, validateBasic})
|
|
testCases = append(testCases, TestCase{constructComplex, instantiateComplex, validateComplex})
|
|
testCases = append(testCases, TestCase{constructComplex2, instantiateComplex2, validateComplex2})
|
|
testCases = append(testCases, TestCase{constructComplexArray, instantiateComplexArray, validateComplexArray})
|
|
testCases = append(testCases, TestCase{constructNilTestStruct, instantiateNilTestStruct, validateNilTestStruct})
|
|
}
|
|
|
|
func TestBinary(t *testing.T) {
|
|
|
|
for i, testCase := range testCases {
|
|
|
|
log.Info(fmt.Sprintf("Running test case %v", i))
|
|
|
|
// Construct an object
|
|
o := testCase.Constructor()
|
|
|
|
// Write the object
|
|
data := BinaryBytes(o)
|
|
t.Logf("Binary: %X", data)
|
|
|
|
instance, instancePtr := testCase.Instantiator()
|
|
|
|
// Read onto a struct
|
|
n, err := new(int64), new(error)
|
|
res := ReadBinary(instance, bytes.NewReader(data), n, err)
|
|
if *err != nil {
|
|
t.Fatalf("Failed to read into instance: %v", *err)
|
|
}
|
|
|
|
// Validate object
|
|
testCase.Validator(res, t)
|
|
|
|
// Read onto a pointer
|
|
n, err = new(int64), new(error)
|
|
res = ReadBinary(instancePtr, bytes.NewReader(data), n, err)
|
|
if *err != nil {
|
|
t.Fatalf("Failed to read into instance: %v", *err)
|
|
}
|
|
|
|
if res != instancePtr {
|
|
t.Errorf("Expected pointer to pass through")
|
|
}
|
|
|
|
// Validate object
|
|
testCase.Validator(reflect.ValueOf(res).Elem().Interface(), t)
|
|
}
|
|
|
|
}
|
|
|
|
func TestJSON(t *testing.T) {
|
|
|
|
for i, testCase := range testCases {
|
|
|
|
log.Info(fmt.Sprintf("Running test case %v", i))
|
|
|
|
// Construct an object
|
|
o := testCase.Constructor()
|
|
|
|
// Write the object
|
|
data := JSONBytes(o)
|
|
t.Logf("JSON: %v", string(data))
|
|
|
|
instance, instancePtr := testCase.Instantiator()
|
|
|
|
// Read onto a struct
|
|
err := new(error)
|
|
res := ReadJSON(instance, data, err)
|
|
if *err != nil {
|
|
t.Fatalf("Failed to read cat: %v", *err)
|
|
}
|
|
|
|
// Validate object
|
|
testCase.Validator(res, t)
|
|
|
|
// Read onto a pointer
|
|
res = ReadJSON(instancePtr, data, err)
|
|
if *err != nil {
|
|
t.Fatalf("Failed to read cat: %v", *err)
|
|
}
|
|
|
|
if res != instancePtr {
|
|
t.Errorf("Expected pointer to pass through")
|
|
}
|
|
|
|
// Validate object
|
|
testCase.Validator(reflect.ValueOf(res).Elem().Interface(), t)
|
|
}
|
|
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
type Foo struct {
|
|
FieldA string `json:"fieldA"` // json field name is "fieldA"
|
|
FieldB string // json field name is "FieldB"
|
|
fieldC string // not exported, not serialized.
|
|
}
|
|
|
|
func TestJSONFieldNames(t *testing.T) {
|
|
for i := 0; i < 20; i++ { // Try to ensure deterministic success.
|
|
foo := Foo{"a", "b", "c"}
|
|
stringified := string(JSONBytes(foo))
|
|
expected := `{"fieldA":"a","FieldB":"b"}`
|
|
if stringified != expected {
|
|
t.Fatalf("JSONFieldNames error: expected %v, got %v",
|
|
expected, stringified)
|
|
}
|
|
}
|
|
}
|