codekingpro/portable-devtools

1// run2 3// Copyright 2009 The Go Authors. All rights reserved.4// Use of this source code is governed by a BSD-style5// license that can be found in the LICENSE file.6 7// Test the internal "algorithms" for objects larger than a word: hashing, equality etc.8 9package main10 11type T struct {12	a float6413	b int6414	c string15	d byte16}17 18var a = []int{1, 2, 3}19var NIL []int20 21func arraycmptest() {22	if NIL != nil {23		println("fail1:", NIL, "!= nil")24		panic("bigalg")25	}26	if nil != NIL {27		println("fail2: nil !=", NIL)28		panic("bigalg")29	}30	if a == nil || nil == a {31		println("fail3:", a, "== nil")32		panic("bigalg")33	}34}35 36func SameArray(a, b []int) bool {37	if len(a) != len(b) || cap(a) != cap(b) {38		return false39	}40	if len(a) > 0 && &a[0] != &b[0] {41		return false42	}43	return true44}45 46var t = T{1.5, 123, "hello", 255}47var mt = make(map[int]T)48var ma = make(map[int][]int)49 50func maptest() {51	mt[0] = t52	t1 := mt[0]53	if t1.a != t.a || t1.b != t.b || t1.c != t.c || t1.d != t.d {54		println("fail: map val struct", t1.a, t1.b, t1.c, t1.d)55		panic("bigalg")56	}57 58	ma[1] = a59	a1 := ma[1]60	if !SameArray(a, a1) {61		println("fail: map val array", a, a1)62		panic("bigalg")63	}64}65 66var ct = make(chan T)67var ca = make(chan []int)68 69func send() {70	ct <- t71	ca <- a72}73 74func chantest() {75	go send()76 77	t1 := <-ct78	if t1.a != t.a || t1.b != t.b || t1.c != t.c || t1.d != t.d {79		println("fail: map val struct", t1.a, t1.b, t1.c, t1.d)80		panic("bigalg")81	}82 83	a1 := <-ca84	if !SameArray(a, a1) {85		println("fail: map val array", a, a1)86		panic("bigalg")87	}88}89 90type E struct{}91 92var e E93 94func interfacetest() {95	var i interface{}96 97	i = a98	a1 := i.([]int)99	if !SameArray(a, a1) {100		println("interface <-> []int", a, a1)101		panic("bigalg")102	}103	pa := new([]int)104	*pa = a105	i = pa106	a1 = *i.(*[]int)107	if !SameArray(a, a1) {108		println("interface <-> *[]int", a, a1)109		panic("bigalg")110	}111 112	i = t113	t1 := i.(T)114	if t1.a != t.a || t1.b != t.b || t1.c != t.c || t1.d != t.d {115		println("interface <-> struct", t1.a, t1.b, t1.c, t1.d)116		panic("bigalg")117	}118 119	i = e120	e1 := i.(E)121	// nothing to check; just verify it doesn't crash122	_ = e1123}124 125func main() {126	arraycmptest()127	maptest()128	chantest()129	interfacetest()130}131