Update storage to new object format

storage/operator/modify_test.go

@@ -0,0 +1,65 @@
+package operator
+
+import (
+	"encoding/json"
+	"fmt"
+	"testing"
+
+	"go.mongodb.org/mongo-driver/bson"
+)
+
+func TestModify(t *testing.T) {
+	cases := map[string]struct {
+		marshalme interface{}
+		key1      string
+		key2      string
+		want      interface{}
+	}{
+		"unset": {
+			marshalme: Unset("field"),
+			key1:      "field",
+			key2:      "$unset",
+			want:      nil,
+		},
+		"popif": {
+			marshalme: PopIf{Key: "field", Filter: "world"},
+			key1:      "$pull",
+			key2:      "field",
+			want:      "world",
+		},
+		"popif map": {
+			marshalme: PopIf{Key: "field", Filter: map[string]string{"world": "jk"}},
+			key1:      "$pull",
+			key2:      "field",
+			want:      map[string]string{"world": "jk"},
+		},
+		"set": {
+			marshalme: Set{Key: "field", Value: "value"},
+			key1:      "$set",
+			key2:      "field",
+			want:      "value",
+		},
+		"push": {
+			marshalme: Push{Key: "field", Value: "value"},
+			key1:      "$push",
+			key2:      "field",
+			want:      "value",
+		},
+	}
+
+	for name, d := range cases {
+		c := d
+		t.Run(name, func(t *testing.T) {
+			var v map[string]map[string]interface{}
+			if b, err := bson.Marshal(c.marshalme); err != nil {
+				t.Error(err)
+			} else if err := bson.Unmarshal(b, &v); err != nil {
+				t.Error(err)
+			} else if got := v[c.key1][c.key2]; fmt.Sprint(got) != fmt.Sprint(c.want) {
+				a, _ := json.Marshal(got)
+				b, _ := json.Marshal(v)
+				t.Errorf("want [%s][%s] = %v, got %s from %s", c.key1, c.key2, c.want, string(a), string(b))
+			}
+		})
+	}
+}