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// Copyright © 2019 Bjørn Erik Pedersen <bjorn.erik.pedersen@gmail.com>.
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
package tmc
import (
"encoding/json"
"math/big"
"testing"
"time"
yaml "gopkg.in/yaml.v2"
qt "github.com/frankban/quicktest"
"github.com/google/go-cmp/cmp"
)
func TestRoundtrip(t *testing.T) {
c := qt.New(t)
src := newTestMap()
for _, test := range []struct {
name string
options []Option
dataAssert func(c *qt.C, data string)
}{
{"Default", nil,
func(c *qt.C, data string) { c.Assert(data, qt.Contains, `{"nested":{"vduration|time.Duration":"5s"`) }},
{"Custom type separator",
[]Option{
WithTypeSep("TYPE:"),
},
func(c *qt.C, data string) { c.Assert(data, qt.Contains, "TYPE:") },
},
{"YAML",
[]Option{
WithMarshalUnmarshaler(new(yamlMarshaler)),
},
func(c *qt.C, data string) { c.Assert(data, qt.Contains, "vduration|time.Duration: 3s") },
},
{"JSON indent",
[]Option{
WithMarshalUnmarshaler(new(jsonMarshalerIndent)),
},
func(c *qt.C, data string) {
},
},
} {
test := test
c.Run(test.name, func(c *qt.C) {
c.Parallel()
codec, err := New(test.options...)
c.Assert(err, qt.IsNil)
data, err := codec.Marshal(src)
c.Assert(err, qt.IsNil)
//c.Log(string(data))
if test.dataAssert != nil {
test.dataAssert(c, string(data))
}
dst := make(map[string]interface{})
c.Assert(codec.Unmarshal(data, &dst), qt.IsNil)
c.Assert(dst, eq, src)
})
}
}
func TestErrors(t *testing.T) {
c := qt.New(t)
codec, err := New()
c.Assert(err, qt.IsNil)
marshal := func(v interface{}) error {
_, err := codec.Marshal(v)
return err
}
// OK
c.Assert(marshal(map[string]interface{}{"32": "a"}), qt.IsNil)
c.Assert(marshal(map[string]int{"32": 32}), qt.IsNil)
// Should fail
c.Assert(marshal([]string{"a"}), qt.Not(qt.IsNil))
c.Assert(marshal(map[int]interface{}{32: "a"}), qt.Not(qt.IsNil))
c.Assert(marshal(map[string]interface{}{"a": map[int]string{32: "32"}}), qt.Not(qt.IsNil))
}
func BenchmarkCodec(b *testing.B) {
b.Run("JSON regular", func(b *testing.B) {
b.StopTimer()
mi := newTestMap()
b.StartTimer()
for i := 0; i < b.N; i++ {
data, err := json.Marshal(mi)
if err != nil {
b.Fatal(err)
}
m := make(map[string]interface{})
if err := json.Unmarshal(data, &m); err != nil {
b.Fatal(err)
}
}
})
b.Run("JSON typed", func(b *testing.B) {
b.StopTimer()
mi := newTestMap()
c, err := New()
if err != nil {
b.Fatal(err)
}
b.StartTimer()
for i := 0; i < b.N; i++ {
data, err := c.Marshal(mi)
if err != nil {
b.Fatal(err)
}
m := make(map[string]interface{})
if err := c.Unmarshal(data, &m); err != nil {
b.Fatal(err)
}
}
})
}
func newTestMap() map[string]interface{} {
return map[string]interface{}{
"vstring": "Hello1",
"vstring|": "Hello2",
"vstring|foo": "Hello3",
// Numbers
"vint": 32,
"vfloat64": float64(3.14159),
"vrat": big.NewRat(1, 2),
// Time
"vtime": time.Now(),
"vduration": 3 * time.Second,
"vsliceint": []int{1, 3, 4},
"nested": map[string]interface{}{
"vint": 55,
"vduration": 5 * time.Second,
},
"nested-typed-int": map[string]int{
"vint": 42,
},
"nested-typed-duration": map[string]time.Duration{
"v1": 5 * time.Second,
"v2": 10 * time.Second,
},
}
}
var eq = qt.CmpEquals(
cmp.Comparer(
func(v1, v2 *big.Rat) bool {
return v1.RatString() == v2.RatString()
},
),
cmp.Comparer(func(v1, v2 time.Time) bool {
// UnmarshalText always create times with no monotonic clock reading,
// so we cannot compare with ==.
// TODO(bep) improve this
return v1.Unix() == v2.Unix()
}),
)
type yamlMarshaler int
func (yamlMarshaler) Marshal(v interface{}) ([]byte, error) {
return yaml.Marshal(v)
}
func (yamlMarshaler) Unmarshal(b []byte, v interface{}) error {
return yaml.Unmarshal(b, v)
}
// Useful for debugging
type jsonMarshalerIndent int
func (jsonMarshalerIndent) Marshal(v interface{}) ([]byte, error) {
return json.MarshalIndent(v, "", " ")
}
func (jsonMarshalerIndent) Unmarshal(b []byte, v interface{}) error {
return json.Unmarshal(b, v)
}
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