154 lines
4.0 KiB
Go
154 lines
4.0 KiB
Go
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package gob
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import (
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"reflect"
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"testing"
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)
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type typeT struct {
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id typeId
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str string
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}
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var basicTypes = []typeT{
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{tBool, "bool"},
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{tInt, "int"},
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{tUint, "uint"},
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{tFloat, "float"},
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{tBytes, "bytes"},
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{tString, "string"},
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}
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func getTypeUnlocked(name string, rt reflect.Type) gobType {
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typeLock.Lock()
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defer typeLock.Unlock()
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t, err := getType(name, rt)
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if err != nil {
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panic("getTypeUnlocked: " + err.String())
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}
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return t
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}
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// Sanity checks
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func TestBasic(t *testing.T) {
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for _, tt := range basicTypes {
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if tt.id.string() != tt.str {
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t.Errorf("checkType: expected %q got %s", tt.str, tt.id.string())
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}
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if tt.id == 0 {
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t.Errorf("id for %q is zero", tt.str)
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}
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}
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}
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// Reregister some basic types to check registration is idempotent.
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func TestReregistration(t *testing.T) {
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newtyp := getTypeUnlocked("int", reflect.Typeof(int(0)))
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if newtyp != tInt.gobType() {
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t.Errorf("reregistration of %s got new type", newtyp.string())
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}
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newtyp = getTypeUnlocked("uint", reflect.Typeof(uint(0)))
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if newtyp != tUint.gobType() {
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t.Errorf("reregistration of %s got new type", newtyp.string())
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}
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newtyp = getTypeUnlocked("string", reflect.Typeof("hello"))
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if newtyp != tString.gobType() {
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t.Errorf("reregistration of %s got new type", newtyp.string())
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}
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}
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func TestArrayType(t *testing.T) {
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var a3 [3]int
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a3int := getTypeUnlocked("foo", reflect.Typeof(a3))
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newa3int := getTypeUnlocked("bar", reflect.Typeof(a3))
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if a3int != newa3int {
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t.Errorf("second registration of [3]int creates new type")
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}
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var a4 [4]int
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a4int := getTypeUnlocked("goo", reflect.Typeof(a4))
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if a3int == a4int {
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t.Errorf("registration of [3]int creates same type as [4]int")
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}
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var b3 [3]bool
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a3bool := getTypeUnlocked("", reflect.Typeof(b3))
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if a3int == a3bool {
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t.Errorf("registration of [3]bool creates same type as [3]int")
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}
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str := a3bool.string()
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expected := "[3]bool"
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if str != expected {
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t.Errorf("array printed as %q; expected %q", str, expected)
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}
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}
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func TestSliceType(t *testing.T) {
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var s []int
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sint := getTypeUnlocked("slice", reflect.Typeof(s))
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var news []int
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newsint := getTypeUnlocked("slice1", reflect.Typeof(news))
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if sint != newsint {
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t.Errorf("second registration of []int creates new type")
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}
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var b []bool
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sbool := getTypeUnlocked("", reflect.Typeof(b))
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if sbool == sint {
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t.Errorf("registration of []bool creates same type as []int")
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}
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str := sbool.string()
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expected := "[]bool"
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if str != expected {
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t.Errorf("slice printed as %q; expected %q", str, expected)
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}
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}
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func TestMapType(t *testing.T) {
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var m map[string]int
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mapStringInt := getTypeUnlocked("map", reflect.Typeof(m))
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var newm map[string]int
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newMapStringInt := getTypeUnlocked("map1", reflect.Typeof(newm))
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if mapStringInt != newMapStringInt {
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t.Errorf("second registration of map[string]int creates new type")
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}
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var b map[string]bool
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mapStringBool := getTypeUnlocked("", reflect.Typeof(b))
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if mapStringBool == mapStringInt {
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t.Errorf("registration of map[string]bool creates same type as map[string]int")
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}
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str := mapStringBool.string()
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expected := "map[string]bool"
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if str != expected {
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t.Errorf("map printed as %q; expected %q", str, expected)
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}
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}
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type Bar struct {
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x string
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}
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// This structure has pointers and refers to itself, making it a good test case.
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type Foo struct {
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a int
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b int32 // will become int
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c string
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d []byte
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e *float // will become float
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f ****float64 // will become float
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g *Bar
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h *Bar // should not interpolate the definition of Bar again
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i *Foo // will not explode
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}
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func TestStructType(t *testing.T) {
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sstruct := getTypeUnlocked("Foo", reflect.Typeof(Foo{}))
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str := sstruct.string()
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// If we can print it correctly, we built it correctly.
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expected := "Foo = struct { a int; b int; c string; d bytes; e float; f float; g Bar = struct { x string; }; h Bar; i Foo; }"
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if str != expected {
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t.Errorf("struct printed as %q; expected %q", str, expected)
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}
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}
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