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package json_test
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import (
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"github.com/tendermint/tendermint/libs/json"
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)
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func TestMarshal(t *testing.T) {
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s := "string"
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sPtr := &s
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i64 := int64(64)
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ti := time.Date(2020, 6, 2, 18, 5, 13, 4346374, time.FixedZone("UTC+2", 2*60*60))
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car := &Car{Wheels: 4}
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boat := Boat{Sail: true}
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testcases := map[string]struct {
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value interface{}
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output string
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}{
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"nil": {nil, `null`},
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"string": {"foo", `"foo"`},
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"float32": {float32(3.14), `3.14`},
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"float32 neg": {float32(-3.14), `-3.14`},
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"float64": {float64(3.14), `3.14`},
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"float64 neg": {float64(-3.14), `-3.14`},
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"int32": {int32(32), `32`},
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"int64": {int64(64), `"64"`},
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"int64 neg": {int64(-64), `"-64"`},
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"int64 ptr": {&i64, `"64"`},
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"uint64": {uint64(64), `"64"`},
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"time": {ti, `"2020-06-02T16:05:13.004346374Z"`},
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"time empty": {time.Time{}, `"0001-01-01T00:00:00Z"`},
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"time ptr": {&ti, `"2020-06-02T16:05:13.004346374Z"`},
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"customptr": {CustomPtr{Value: "x"}, `{"Value":"x"}`}, // same as encoding/json
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"customptr ptr": {&CustomPtr{Value: "x"}, `"custom"`},
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"customvalue": {CustomValue{Value: "x"}, `"custom"`},
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"customvalue ptr": {&CustomValue{Value: "x"}, `"custom"`},
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"slice nil": {[]int(nil), `null`},
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"slice empty": {[]int{}, `[]`},
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"slice bytes": {[]byte{1, 2, 3}, `"AQID"`},
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"slice int64": {[]int64{1, 2, 3}, `["1","2","3"]`},
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"slice int64 ptr": {[]*int64{&i64, nil}, `["64",null]`},
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"array bytes": {[3]byte{1, 2, 3}, `"AQID"`},
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"array int64": {[3]int64{1, 2, 3}, `["1","2","3"]`},
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"map nil": {map[string]int64(nil), `{}`}, // retain Amino compatibility
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"map empty": {map[string]int64{}, `{}`},
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"map int64": {map[string]int64{"a": 1, "b": 2, "c": 3}, `{"a":"1","b":"2","c":"3"}`},
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"car": {car, `{"type":"vehicle/car","value":{"Wheels":4}}`},
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"car value": {*car, `{"type":"vehicle/car","value":{"Wheels":4}}`},
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"car iface": {Vehicle(car), `{"type":"vehicle/car","value":{"Wheels":4}}`},
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"car nil": {(*Car)(nil), `null`},
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"boat": {boat, `{"type":"vehicle/boat","value":{"Sail":true}}`},
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"boat ptr": {&boat, `{"type":"vehicle/boat","value":{"Sail":true}}`},
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"boat iface": {Vehicle(boat), `{"type":"vehicle/boat","value":{"Sail":true}}`},
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"key public": {PublicKey{1, 2, 3, 4, 5, 6, 7, 8}, `{"type":"key/public","value":"AQIDBAUGBwg="}`},
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"tags": {
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Tags{JSONName: "name", OmitEmpty: "foo", Hidden: "bar", Tags: &Tags{JSONName: "child"}},
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`{"name":"name","OmitEmpty":"foo","tags":{"name":"child"}}`,
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},
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"tags empty": {Tags{}, `{"name":""}`},
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// The encoding of the Car and Boat fields do not have type wrappers, even though they get
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// type wrappers when encoded directly (see "car" and "boat" tests). This is to retain the
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// same behavior as Amino. If the field was a Vehicle interface instead, it would get
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// type wrappers, as seen in the Vehicles field.
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"struct": {
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Struct{
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Bool: true, Float64: 3.14, Int32: 32, Int64: 64, Int64Ptr: &i64,
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String: "foo", StringPtrPtr: &sPtr, Bytes: []byte{1, 2, 3},
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Time: ti, Car: car, Boat: boat, Vehicles: []Vehicle{car, boat},
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Child: &Struct{Bool: false, String: "child"}, private: "private",
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},
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`{
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"Bool":true, "Float64":3.14, "Int32":32, "Int64":"64", "Int64Ptr":"64",
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"String":"foo", "StringPtrPtr": "string", "Bytes":"AQID",
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"Time":"2020-06-02T16:05:13.004346374Z",
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"Car":{"Wheels":4},
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"Boat":{"Sail":true},
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"Vehicles":[
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{"type":"vehicle/car","value":{"Wheels":4}},
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{"type":"vehicle/boat","value":{"Sail":true}}
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],
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"Child":{
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"Bool":false, "Float64":0, "Int32":0, "Int64":"0", "Int64Ptr":null,
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"String":"child", "StringPtrPtr":null, "Bytes":null,
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"Time":"0001-01-01T00:00:00Z",
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"Car":null, "Boat":{"Sail":false}, "Vehicles":null, "Child":null
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}
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}`,
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},
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}
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for name, tc := range testcases {
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tc := tc
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t.Run(name, func(t *testing.T) {
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bz, err := json.Marshal(tc.value)
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require.NoError(t, err)
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assert.JSONEq(t, tc.output, string(bz))
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})
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}
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}
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