| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package util |
| |
| import ( |
| "fmt" |
| "testing" |
| ) |
| |
| type testStru struct { |
| f1 int |
| f2 string |
| f3 testField |
| f4 *testField |
| } |
| |
| type testField struct { |
| } |
| |
| func TestLoadStruct(t *testing.T) { |
| obj1 := testStru{} |
| v := Reflect(obj1) |
| if v.Type.String() != "util.testStru" { |
| t.Fatalf("TestLoadStruct failed, %s != 'testStru'", v.Type.String()) |
| } |
| if len(v.Fields) != 4 { |
| t.Fatalf("TestLoadStruct failed, wrong count of fields") |
| } |
| if v.Name() != "pkg/util.testStru" || v.FullName != "github.com/apache/servicecomb-service-center/pkg/util.testStru" { |
| t.Fatalf("TestLoadStruct failed") |
| } |
| for _, f := range v.Fields { |
| fmt.Println(f.Name, f.Type.String()) |
| } |
| |
| obj2 := testStru{} |
| v1 := Reflect(obj2) |
| if v1.FullName != v.FullName { |
| t.Fatalf("TestLoadStruct failed") |
| } |
| v2 := Reflect(&obj2) |
| if v2.FullName != v.FullName { |
| t.Fatalf("TestLoadStruct failed") |
| } |
| v = Reflect(nil) |
| if v.FullName != "" { |
| t.Fatalf("TestLoadStruct failed") |
| } |
| |
| if FuncName(TestLoadStruct) != "pkg/util.TestLoadStruct" { |
| t.Fatalf("TestLoadStruct failed") |
| } |
| f := TestLoadStruct |
| if FormatFuncName(FuncName(f)) != "TestLoadStruct" { |
| t.Fatalf("TestLoadStruct failed") |
| } |
| } |
| |
| func TestSizeof(t *testing.T) { |
| s := &S{} |
| if Sizeof(s) != 8+152 { |
| t.Fatalf("TestSizeof failed") |
| } |
| } |
| |
| func BenchmarkLoadStruct(b *testing.B) { |
| b.RunParallel(func(pb *testing.PB) { |
| for pb.Next() { |
| Reflect(testStru{}) |
| } |
| }) |
| b.ReportAllocs() |
| // 20000000 86.9 ns/op 32 B/op 1 allocs/op |
| } |
| |
| type S struct { |
| a int // 8 |
| s string // 16 |
| p *S // 8 |
| m map[int32]uint32 // 8 |
| u []uint64 // 24 |
| ua [8]uint64 // 64 |
| ch chan int // 8 |
| i interface{} // 16 |
| } |
| |
| func BenchmarkSizeof(b *testing.B) { |
| s := &S{} |
| b.RunParallel(func(pb *testing.PB) { |
| for pb.Next() { |
| Sizeof(S{ |
| p: s, |
| i: s, |
| }) |
| } |
| }) |
| b.ReportAllocs() |
| // 2000000 650 ns/op 160 B/op 1 allocs/op |
| } |