457 lines
10 KiB
V
457 lines
10 KiB
V
import json
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import time
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enum JobTitle {
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manager
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executive
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worker
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}
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struct Employee {
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name string
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age int
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salary f32
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title JobTitle
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}
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fn test_simple() ? {
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x := Employee{'Peter', 28, 95000.5, .worker}
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s := json.encode(x)
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eprintln('Employee x: $s')
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assert s == '{"name":"Peter","age":28,"salary":95000.5,"title":2}'
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y := json.decode(Employee, s) ?
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eprintln('Employee y: $y')
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assert y.name == 'Peter'
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assert y.age == 28
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assert y.salary == 95000.5
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assert y.title == .worker
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}
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fn test_decode_top_level_array() {
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s := '[{"name":"Peter", "age": 29}, {"name":"Bob", "age":31}]'
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x := json.decode([]Employee, s) or { panic(err) }
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assert x.len == 2
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assert x[0].name == 'Peter'
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assert x[0].age == 29
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assert x[1].name == 'Bob'
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assert x[1].age == 31
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}
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struct Human {
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name string
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}
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struct Item {
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tag string
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}
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enum Animal {
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dog // Will be encoded as `0`
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cat
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}
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type Entity = Animal | Human | Item | string | time.Time
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struct SomeGame {
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title string
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player Entity
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other []Entity
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}
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fn test_encode_decode_sumtype() ? {
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t := time.now()
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game := SomeGame{
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title: 'Super Mega Game'
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player: Human{'Monke'}
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other: [
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Entity(Item{'Pen'}),
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Item{'Cookie'},
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Animal.cat,
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'Stool',
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t,
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]
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}
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eprintln('Game: $game')
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enc := json.encode(game)
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eprintln('Encoded Game: $enc')
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assert enc == '{"title":"Super Mega Game","player":{"name":"Monke","_type":"Human"},"other":[{"tag":"Pen","_type":"Item"},{"tag":"Cookie","_type":"Item"},1,"Stool",{"_type":"Time","value":$t.unix_time()}]}'
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dec := json.decode(SomeGame, enc) ?
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eprintln('Decoded Game: $dec')
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assert game.title == dec.title
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assert game.player == dec.player
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assert (game.other[2] as Animal) == (dec.other[2] as Animal)
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assert (game.other[4] as time.Time).unix_time() == (dec.other[4] as time.Time).unix_time()
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}
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fn bar<T>(payload string) ?Bar { // ?T doesn't work currently
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result := json.decode(T, payload) ?
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return result
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}
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struct Bar {
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x string
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}
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fn test_generic() {
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result := bar<Bar>('{"x":"test"}') or { Bar{} }
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assert result.x == 'test'
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}
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struct User2 {
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age int
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nums []int
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reg_date time.Time
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}
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struct User {
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age int
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nums []int
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last_name string [json: lastName]
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is_registered bool [json: IsRegistered]
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typ int [json: 'type']
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pets string [json: 'pet_animals'; raw]
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}
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fn test_parse_user() ? {
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s := '{"age": 10, "nums": [1,2,3], "type": 1, "lastName": "Johnson", "IsRegistered": true, "pet_animals": {"name": "Bob", "animal": "Dog"}}'
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u2 := json.decode(User2, s) ?
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println(u2)
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u := json.decode(User, s) ?
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println(u)
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assert u.age == 10
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assert u.last_name == 'Johnson'
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assert u.is_registered == true
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assert u.nums.len == 3
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assert u.nums[0] == 1
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assert u.nums[1] == 2
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assert u.nums[2] == 3
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assert u.typ == 1
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assert u.pets == '{"name":"Bob","animal":"Dog"}'
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}
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fn test_encode_decode_time() ? {
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user := User2{
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age: 25
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reg_date: time.new_time(year: 2020, month: 12, day: 22, hour: 7, minute: 23)
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}
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s := json.encode(user)
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println(s)
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assert s.contains('"reg_date":1608621780')
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user2 := json.decode(User2, s) ?
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assert user2.reg_date.str() == '2020-12-22 07:23:00'
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println(user2)
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println(user2.reg_date)
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}
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fn (mut u User) foo() string {
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return json.encode(u)
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}
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fn test_encode_user() {
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mut usr := User{
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age: 10
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nums: [1, 2, 3]
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last_name: 'Johnson'
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is_registered: true
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typ: 0
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pets: 'foo'
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}
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expected := '{"age":10,"nums":[1,2,3],"lastName":"Johnson","IsRegistered":true,"type":0,"pet_animals":"foo"}'
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out := json.encode(usr)
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println(out)
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assert out == expected
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// Test json.encode on mutable pointers
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assert usr.foo() == expected
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}
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struct Color {
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space string
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point string [raw]
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}
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fn test_raw_json_field() {
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color := json.decode(Color, '{"space": "YCbCr", "point": {"Y": 123}}') or {
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println('text')
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return
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}
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assert color.point == '{"Y":123}'
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assert color.space == 'YCbCr'
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}
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fn test_bad_raw_json_field() {
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color := json.decode(Color, '{"space": "YCbCr"}') or {
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println('text')
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return
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}
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assert color.point == ''
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assert color.space == 'YCbCr'
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}
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struct City {
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name string
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}
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struct Country {
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cities []City
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name string
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}
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fn test_struct_in_struct() ? {
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country := json.decode(Country, '{ "name": "UK", "cities": [{"name":"London"}, {"name":"Manchester"}]}') ?
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assert country.name == 'UK'
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assert country.cities.len == 2
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assert country.cities[0].name == 'London'
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assert country.cities[1].name == 'Manchester'
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println(country.cities)
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}
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fn test_encode_map() {
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expected := '{"one":1,"two":2,"three":3,"four":4}'
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numbers := {
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'one': 1
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'two': 2
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'three': 3
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'four': 4
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}
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out := json.encode(numbers)
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println(out)
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assert out == expected
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}
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fn test_parse_map() ? {
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expected := {
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'one': 1
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'two': 2
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'three': 3
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'four': 4
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}
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out := json.decode(map[string]int, '{"one":1,"two":2,"three":3,"four":4}') ?
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println(out)
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assert out == expected
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}
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struct Data {
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countries []Country
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users map[string]User
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extra map[string]map[string]int
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}
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fn test_nested_type() ? {
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data_expected := '{"countries":[{"cities":[{"name":"London"},{"name":"Manchester"}],"name":"UK"},{"cities":[{"name":"Donlon"},{"name":"Termanches"}],"name":"KU"}],"users":{"Foo":{"age":10,"nums":[1,2,3],"lastName":"Johnson","IsRegistered":true,"type":0,"pet_animals":"little foo"},"Boo":{"age":20,"nums":[5,3,1],"lastName":"Smith","IsRegistered":false,"type":4,"pet_animals":"little boo"}},"extra":{"2":{"n1":2,"n2":4,"n3":8,"n4":16},"3":{"n1":3,"n2":9,"n3":27,"n4":81}}}'
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data := Data{
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countries: [
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Country{
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name: 'UK'
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cities: [City{'London'}, City{'Manchester'}]
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},
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Country{
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name: 'KU'
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cities: [City{'Donlon'}, City{'Termanches'}]
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},
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]
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users: {
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'Foo': User{
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age: 10
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nums: [1, 2, 3]
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last_name: 'Johnson'
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is_registered: true
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typ: 0
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pets: 'little foo'
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}
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'Boo': User{
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age: 20
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nums: [5, 3, 1]
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last_name: 'Smith'
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is_registered: false
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typ: 4
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pets: 'little boo'
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}
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}
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extra: {
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'2': {
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'n1': 2
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'n2': 4
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'n3': 8
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'n4': 16
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}
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'3': {
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'n1': 3
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'n2': 9
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'n3': 27
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'n4': 81
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}
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}
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}
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out := json.encode(data)
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println(out)
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assert out == data_expected
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data2 := json.decode(Data, data_expected) ?
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assert data2.countries.len == data.countries.len
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for i in 0 .. 1 {
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assert data2.countries[i].name == data.countries[i].name
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assert data2.countries[i].cities.len == data.countries[i].cities.len
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for j in 0 .. 1 {
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assert data2.countries[i].cities[j].name == data.countries[i].cities[j].name
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}
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}
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for key, user in data.users {
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assert data2.users[key].age == user.age
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assert data2.users[key].nums == user.nums
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assert data2.users[key].last_name == user.last_name
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assert data2.users[key].is_registered == user.is_registered
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assert data2.users[key].typ == user.typ
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// assert data2.users[key].pets == user.pets // TODO FIX
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}
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for k, v in data.extra {
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for k2, v2 in v {
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assert data2.extra[k][k2] == v2
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}
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}
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}
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struct Foo<T> {
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pub:
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name string
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data T
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}
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fn test_generic_struct() ? {
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foo_int := Foo<int>{'bar', 12}
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foo_enc := json.encode(foo_int)
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assert foo_enc == '{"name":"bar","data":12}'
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foo_dec := json.decode(Foo<int>, foo_enc) ?
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assert foo_dec.name == 'bar'
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assert foo_dec.data == 12
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}
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fn test_errors() {
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invalid_array := fn () {
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data := '{"countries":[{"cities":[{"name":"London"},{"name":"Manchester"}],"name":"UK"},{"cities":{"name":"Donlon"},"name":"KU"}],"users":{"Foo":{"age":10,"nums":[1,2,3],"lastName":"Johnson","IsRegistered":true,"type":0,"pet_animals":"little foo"},"Boo":{"age":20,"nums":[5,3,1],"lastName":"Smith","IsRegistered":false,"type":4,"pet_animals":"little boo"}},"extra":{"2":{"n1":2,"n2":4,"n3":8,"n4":16},"3":{"n1":3,"n2":9,"n3":27,"n4":81}}}'
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json.decode(Data, data) or {
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println(err)
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assert err.msg().starts_with('Json element is not an array:')
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return
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}
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assert false
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}
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invalid_object := fn () {
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data := '{"countries":[{"cities":[{"name":"London"},{"name":"Manchester"}],"name":"UK"},{"cities":[{"name":"Donlon"},{"name":"Termanches"}],"name":"KU"}],"users":[{"age":10,"nums":[1,2,3],"lastName":"Johnson","IsRegistered":true,"type":0,"pet_animals":"little foo"},{"age":20,"nums":[5,3,1],"lastName":"Smith","IsRegistered":false,"type":4,"pet_animals":"little boo"}],"extra":{"2":{"n1":2,"n2":4,"n3":8,"n4":16},"3":{"n1":3,"n2":9,"n3":27,"n4":81}}}'
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json.decode(Data, data) or {
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println(err)
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assert err.msg().starts_with('Json element is not an object:')
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return
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}
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assert false
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}
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invalid_array()
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invalid_object()
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}
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type ID = string
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struct Message {
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id ID
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}
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fn test_decode_alias_struct() ? {
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msg := json.decode(Message, '{"id": "118499178790780929"}') ?
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// hacky way of comparing aliased strings
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assert msg.id.str() == '118499178790780929'
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}
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fn test_encode_alias_struct() {
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expected := '{"id":"118499178790780929"}'
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msg := Message{'118499178790780929'}
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out := json.encode(msg)
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assert out == expected
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}
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struct List {
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id int
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items []string
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}
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fn test_list() ? {
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list := json.decode(List, '{"id": 1, "items": ["1", "2"]}') ?
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assert list.id == 1
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assert list.items == ['1', '2']
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}
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fn test_list_no_id() ? {
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list := json.decode(List, '{"items": ["1", "2"]}') ?
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assert list.id == 0
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assert list.items == ['1', '2']
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}
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fn test_list_no_items() ? {
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list := json.decode(List, '{"id": 1}') ?
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assert list.id == 1
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assert list.items == []
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}
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struct Info {
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id int
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items []string
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maps map[string]string
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}
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fn test_decode_null_object() ? {
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info := json.decode(Info, '{"id": 22, "items": null, "maps": null}') ?
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assert info.id == 22
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assert '$info.items' == '[]'
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assert '$info.maps' == '{}'
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}
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struct Foo2 {
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name string
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}
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fn test_pretty() {
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foo := Foo2{'Bob'}
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assert json.encode_pretty(foo) == '{
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"name": "Bob"
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}'
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}
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struct Foo3 {
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name string
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age int [omitempty]
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}
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fn test_omit_empty() {
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foo := Foo3{'Bob', 0}
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assert json.encode_pretty(foo) == '{
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"name": "Bob"
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}'
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// println('omitempty:')
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// println(json.encode_pretty(foo))
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}
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struct Asdasd {
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data GamePacketData
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}
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type GamePacketData = GPEquipItem | GPScale
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struct GPScale {
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value f32
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}
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struct GPEquipItem {
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name string
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}
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fn create_game_packet(data &GamePacketData) string {
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return json.encode(data)
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}
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fn test_encode_sumtype_defined_ahead() {
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ret := create_game_packet(&GamePacketData(GPScale{}))
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println(ret)
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assert ret == '{"value":0,"_type":"GPScale"}'
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}
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