refactor config cache

common/loader/json_conf_test.go

@@ -0,0 +1,39 @@
+// +build json
+
+package loader_test
+
+import (
+	"testing"
+
+	. "v2ray.com/core/common/loader"
+	"v2ray.com/core/testing/assert"
+)
+
+type TestConfigA struct {
+	V int
+}
+
+type TestConfigB struct {
+	S string
+}
+
+func TestCreatorCache(t *testing.T) {
+	assert := assert.On(t)
+
+	cache := ConfigCreatorCache{}
+	creator1 := func() interface{} { return &TestConfigA{} }
+	creator2 := func() interface{} { return &TestConfigB{} }
+	cache.RegisterCreator("1", creator1)
+
+	loader := NewJSONConfigLoader(cache, "test", "")
+	rawA, err := loader.LoadWithID([]byte(`{"V": 2}`), "1")
+	assert.Error(err).IsNil()
+	instA := rawA.(*TestConfigA)
+	assert.Int(instA.V).Equals(2)
+
+	cache.RegisterCreator("2", creator2)
+	rawB, err := loader.LoadWithID([]byte(`{"S": "a"}`), "2")
+	assert.Error(err).IsNil()
+	instB := rawB.(*TestConfigB)
+	assert.String(instB.S).Equals("a")
+}