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package bson_test
import (
"gopkg.in/mgo.v2/bson"
. "gopkg.in/check.v1"
"reflect"
"strings"
"time"
)
type jsonTest struct {
a interface{} // value encoded into JSON (optional)
b string // JSON expected as output of <a>, and used as input to <c>
c interface{} // Value expected from decoding <b>, defaults to <a>
e string // error string, if decoding (b) should fail
}
var jsonTests = []jsonTest{
// $binary
{
a: []byte("foo"),
b: `{"$binary":"Zm9v","$type":"0x0"}`,
}, {
a: bson.Binary{Kind: 2, Data: []byte("foo")},
b: `{"$binary":"Zm9v","$type":"0x2"}`,
}, {
b: `BinData(2,"Zm9v")`,
c: bson.Binary{Kind: 2, Data: []byte("foo")},
},
// $date
{
a: time.Date(2016, 5, 15, 1, 2, 3, 4000000, time.UTC),
b: `{"$date":"2016-05-15T01:02:03.004Z"}`,
}, {
b: `{"$date": {"$numberLong": "1002"}}`,
c: time.Date(1970, 1, 1, 0, 0, 1, 2e6, time.UTC),
}, {
b: `ISODate("2016-05-15T01:02:03.004Z")`,
c: time.Date(2016, 5, 15, 1, 2, 3, 4000000, time.UTC),
}, {
b: `new Date(1000)`,
c: time.Date(1970, 1, 1, 0, 0, 1, 0, time.UTC),
}, {
b: `new Date("2016-05-15")`,
c: time.Date(2016, 5, 15, 0, 0, 0, 0, time.UTC),
},
// $timestamp
{
a: bson.MongoTimestamp(4294967298),
b: `{"$timestamp":{"t":1,"i":2}}`,
}, {
b: `Timestamp(1, 2)`,
c: bson.MongoTimestamp(4294967298),
},
// $regex
{
a: bson.RegEx{"pattern", "options"},
b: `{"$regex":"pattern","$options":"options"}`,
},
// $oid
{
a: bson.ObjectIdHex("0123456789abcdef01234567"),
b: `{"$oid":"0123456789abcdef01234567"}`,
}, {
b: `ObjectId("0123456789abcdef01234567")`,
c: bson.ObjectIdHex("0123456789abcdef01234567"),
},
// $ref (no special type)
{
b: `DBRef("name", "id")`,
c: map[string]interface{}{"$ref": "name", "$id": "id"},
},
// $numberLong
{
a: 123,
b: `123`,
}, {
a: int64(9007199254740992),
b: `{"$numberLong":9007199254740992}`,
}, {
a: int64(1<<53 + 1),
b: `{"$numberLong":"9007199254740993"}`,
}, {
a: 1<<53 + 1,
b: `{"$numberLong":"9007199254740993"}`,
c: int64(9007199254740993),
}, {
b: `NumberLong(9007199254740992)`,
c: int64(1 << 53),
}, {
b: `NumberLong("9007199254740993")`,
c: int64(1<<53 + 1),
},
// $minKey, $maxKey
{
a: bson.MinKey,
b: `{"$minKey":1}`,
}, {
a: bson.MaxKey,
b: `{"$maxKey":1}`,
}, {
b: `MinKey`,
c: bson.MinKey,
}, {
b: `MaxKey`,
c: bson.MaxKey,
}, {
b: `{"$minKey":0}`,
e: `invalid $minKey object: {"$minKey":0}`,
}, {
b: `{"$maxKey":0}`,
e: `invalid $maxKey object: {"$maxKey":0}`,
},
{
a: bson.Undefined,
b: `{"$undefined":true}`,
}, {
b: `undefined`,
c: bson.Undefined,
}, {
b: `{"v": undefined}`,
c: struct{ V interface{} }{bson.Undefined},
},
// Unquoted keys and trailing commas
{
b: `{$foo: ["bar",],}`,
c: map[string]interface{}{"$foo": []interface{}{"bar"}},
},
}
func (s *S) TestJSON(c *C) {
for i, item := range jsonTests {
c.Logf("------------ (#%d)", i)
c.Logf("A: %#v", item.a)
c.Logf("B: %#v", item.b)
if item.c == nil {
item.c = item.a
} else {
c.Logf("C: %#v", item.c)
}
if item.e != "" {
c.Logf("E: %s", item.e)
}
if item.a != nil {
data, err := bson.MarshalJSON(item.a)
c.Assert(err, IsNil)
c.Logf("Dumped: %#v", string(data))
c.Assert(strings.TrimSuffix(string(data), "\n"), Equals, item.b)
}
var zero interface{}
if item.c == nil {
zero = &struct{}{}
} else {
zero = reflect.New(reflect.TypeOf(item.c)).Interface()
}
err := bson.UnmarshalJSON([]byte(item.b), zero)
if item.e != "" {
c.Assert(err, NotNil)
c.Assert(err.Error(), Equals, item.e)
continue
}
c.Assert(err, IsNil)
zerov := reflect.ValueOf(zero)
value := zerov.Interface()
if zerov.Kind() == reflect.Ptr {
value = zerov.Elem().Interface()
}
c.Logf("Loaded: %#v", value)
c.Assert(value, DeepEquals, item.c)
}
}
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