[#190] Add POST object

Signed-off-by: Denis Kirillov <denis@nspcc.ru>

api/handler/put_test.go

@@ -1,7 +1,9 @@
 package handler
 
 import (
+	"encoding/json"
 	"testing"
+	"time"
 
 	"github.com/stretchr/testify/require"
 )
@@ -43,3 +45,44 @@ func TestCheckBucketName(t *testing.T) {
 		}
 	}
 }
+
+func TestCustomJSONMarshal(t *testing.T) {
+	data := []byte(`
+{ "expiration": "2015-12-30T12:00:00.000Z",
+  "conditions": [
+	["content-length-range", 1048576, 10485760],
+    {"bucket": "bucketName"},
+    ["starts-with", "$key", "user/user1/"]
+  ]
+}`)
+
+	parsedTime, err := time.Parse(time.RFC3339, "2015-12-30T12:00:00.000Z")
+	require.NoError(t, err)
+
+	expectedPolicy := &postPolicy{
+		Expiration: parsedTime,
+		Conditions: []*policyCondition{
+			{
+				Matching: "content-length-range",
+				Key:      "1048576",
+				Value:    "10485760",
+			},
+			{
+				Matching: "eq",
+				Key:      "bucket",
+				Value:    "bucketName",
+			},
+			{
+				Matching: "starts-with",
+				Key:      "key",
+				Value:    "user/user1/",
+			},
+		},
+	}
+
+	policy := &postPolicy{}
+	err = json.Unmarshal(data, policy)
+	require.NoError(t, err)
+
+	require.Equal(t, expectedPolicy, policy)
+}