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mirror of https://github.com/golang/go synced 2024-11-06 04:26:11 -07:00
go/test/map.go
Russ Cox 86145611b0 allow range on nil maps
R=ken
OCL=26663
CL=26663
2009-03-23 18:32:37 -07:00

497 lines
10 KiB
Go

// $G $F.go && $L $F.$A && ./$A.out
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package main
import (
"fmt";
"strconv";
)
const arraylen = 2; // BUG: shouldn't need this
func P(a []string) string {
s := "{";
for i := 0; i < len(a); i++ {
if i > 0 {
s += ","
}
s += `"` + a[i] + `"`;
}
s +="}";
return s;
}
func main() {
// Test a map literal.
mlit := map[string] int { "0":0, "1":1, "2":2, "3":3, "4":4 };
for i := 0; i < len(mlit); i++ {
s := string([]byte{byte(i)+'0'});
if mlit[s] != i {
fmt.Printf("mlit[%s] = %d\n", s, mlit[s])
}
}
mib := make(map[int] bool);
mii := make(map[int] int);
mfi := make(map[float] int);
mif := make(map[int] float);
msi := make(map[string] int);
mis := make(map[int] string);
mss := make(map[string] string);
mspa := make(map[string] []string);
// BUG need an interface map both ways too
type T struct {
i int64; // can't use string here; struct values are only compared at the top level
f float;
};
mipT := make(map[int] *T);
mpTi := make(map[*T] int);
mit := make(map[int] T);
// mti := make(map[T] int);
type M map[int] int;
mipM := make(map[int] M);
const count = 1000;
var apT [2*count]*T;
for i := 0; i < count; i++ {
s := strconv.Itoa(i);
s10 := strconv.Itoa(i*10);
f := float(i);
t := T{int64(i),f};
apT[i] = new(T);
apT[i].i = int64(i);
apT[i].f = f;
apT[2*i] = new(T); // need twice as many entries as we use, for the nonexistence check
apT[2*i].i = int64(i);
apT[2*i].f = f;
m := M{i: i+1};
mib[i] = (i != 0);
mii[i] = 10*i;
mfi[float(i)] = 10*i;
mif[i] = 10.0*f;
mis[i] = s;
msi[s] = i;
mss[s] = s10;
mss[s] = s10;
as := make([]string, arraylen);
as[0] = s10;
as[1] = s10;
mspa[s] = as;
mipT[i] = apT[i];
mpTi[apT[i]] = i;
mipM[i] = m;
mit[i] = t;
// mti[t] = i;
}
// test len
if len(mib) != count {
fmt.Printf("len(mib) = %d\n", len(mib));
}
if len(mii) != count {
fmt.Printf("len(mii) = %d\n", len(mii));
}
if len(mfi) != count {
fmt.Printf("len(mfi) = %d\n", len(mfi));
}
if len(mif) != count {
fmt.Printf("len(mif) = %d\n", len(mif));
}
if len(msi) != count {
fmt.Printf("len(msi) = %d\n", len(msi));
}
if len(mis) != count {
fmt.Printf("len(mis) = %d\n", len(mis));
}
if len(mss) != count {
fmt.Printf("len(mss) = %d\n", len(mss));
}
if len(mspa) != count {
fmt.Printf("len(mspa) = %d\n", len(mspa));
}
if len(mipT) != count {
fmt.Printf("len(mipT) = %d\n", len(mipT));
}
if len(mpTi) != count {
fmt.Printf("len(mpTi) = %d\n", len(mpTi));
}
// if len(mti) != count {
// fmt.Printf("len(mti) = %d\n", len(mti));
// }
if len(mipM) != count {
fmt.Printf("len(mipM) = %d\n", len(mipM));
}
// if len(mti) != count {
// fmt.Printf("len(mti) = %d\n", len(mti));
// }
if len(mit) != count {
fmt.Printf("len(mit) = %d\n", len(mit));
}
// test construction directly
for i := 0; i < count; i++ {
s := strconv.Itoa(i);
s10 := strconv.Itoa(i*10);
f := float(i);
t := T{int64(i), f};
// BUG m := M(i, i+1);
if mib[i] != (i != 0) {
fmt.Printf("mib[%d] = %t\n", i, mib[i]);
}
if(mii[i] != 10*i) {
fmt.Printf("mii[%d] = %d\n", i, mii[i]);
}
if(mfi[f] != 10*i) {
fmt.Printf("mfi[%d] = %d\n", i, mfi[f]);
}
if(mif[i] != 10.0*f) {
fmt.Printf("mif[%d] = %g\n", i, mif[i]);
}
if(mis[i] != s) {
fmt.Printf("mis[%d] = %s\n", i, mis[i]);
}
if(msi[s] != i) {
fmt.Printf("msi[%s] = %d\n", s, msi[s]);
}
if mss[s] != s10 {
fmt.Printf("mss[%s] = %g\n", s, mss[s]);
}
for j := 0; j < arraylen; j++ {
if mspa[s][j] != s10 {
fmt.Printf("mspa[%s][%d] = %s\n", s, j, mspa[s][j]);
}
}
if(mipT[i].i != int64(i) || mipT[i].f != f) {
fmt.Printf("mipT[%d] = %v\n", i, mipT[i]);
}
if(mpTi[apT[i]] != i) {
fmt.Printf("mpTi[apT[%d]] = %d\n", i, mpTi[apT[i]]);
}
// if(mti[t] != i) {
// fmt.Printf("mti[%s] = %s\n", s, mti[t]);
// }
if (mipM[i][i] != i + 1) {
fmt.Printf("mipM[%d][%d] = %d\n", i, i, mipM[i][i]);
}
// if(mti[t] != i) {
// fmt.Printf("mti[%v] = %d\n", t, mti[t]);
// }
if(mit[i].i != int64(i) || mit[i].f != f) {
fmt.Printf("mit[%d] = {%d %g}\n", i, mit[i].i, mit[i].f);
}
}
// test existence with tuple check
// failed lookups yield a false value for the boolean.
for i := 0; i < count; i++ {
s := strconv.Itoa(i);
f := float(i);
t := T{int64(i), f};
{
a, b := mib[i];
if !b {
fmt.Printf("tuple existence decl: mib[%d]\n", i);
}
a, b = mib[i];
if !b {
fmt.Printf("tuple existence assign: mib[%d]\n", i);
}
}
{
a, b := mii[i];
if !b {
fmt.Printf("tuple existence decl: mii[%d]\n", i);
}
a, b = mii[i];
if !b {
fmt.Printf("tuple existence assign: mii[%d]\n", i);
}
}
{
a, b := mfi[f];
if !b {
fmt.Printf("tuple existence decl: mfi[%d]\n", i);
}
a, b = mfi[f];
if !b {
fmt.Printf("tuple existence assign: mfi[%d]\n", i);
}
}
{
a, b := mif[i];
if !b {
fmt.Printf("tuple existence decl: mif[%d]\n", i);
}
a, b = mif[i];
if !b {
fmt.Printf("tuple existence assign: mif[%d]\n", i);
}
}
{
a, b := mis[i];
if !b {
fmt.Printf("tuple existence decl: mis[%d]\n", i);
}
a, b = mis[i];
if !b {
fmt.Printf("tuple existence assign: mis[%d]\n", i);
}
}
{
a, b := msi[s];
if !b {
fmt.Printf("tuple existence decl: msi[%d]\n", i);
}
a, b = msi[s];
if !b {
fmt.Printf("tuple existence assign: msi[%d]\n", i);
}
}
{
a, b := mss[s];
if !b {
fmt.Printf("tuple existence decl: mss[%d]\n", i);
}
a, b = mss[s];
if !b {
fmt.Printf("tuple existence assign: mss[%d]\n", i);
}
}
{
a, b := mspa[s];
if !b {
fmt.Printf("tuple existence decl: mspa[%d]\n", i);
}
a, b = mspa[s];
if !b {
fmt.Printf("tuple existence assign: mspa[%d]\n", i);
}
}
{
a, b := mipT[i];
if !b {
fmt.Printf("tuple existence decl: mipT[%d]\n", i);
}
a, b = mipT[i];
if !b {
fmt.Printf("tuple existence assign: mipT[%d]\n", i);
}
}
{
a, b := mpTi[apT[i]];
if !b {
fmt.Printf("tuple existence decl: mpTi[apT[%d]]\n", i);
}
a, b = mpTi[apT[i]];
if !b {
fmt.Printf("tuple existence assign: mpTi[apT[%d]]\n", i);
}
}
{
a, b := mipM[i];
if !b {
fmt.Printf("tuple existence decl: mipM[%d]\n", i);
}
a, b = mipM[i];
if !b {
fmt.Printf("tuple existence assign: mipM[%d]\n", i);
}
}
{
a, b := mit[i];
if !b {
fmt.Printf("tuple existence decl: mit[%d]\n", i);
}
a, b = mit[i];
if !b {
fmt.Printf("tuple existence assign: mit[%d]\n", i);
}
}
// {
// a, b := mti[t];
// if !b {
// fmt.Printf("tuple existence decl: mti[%d]\n", i);
// }
// a, b = mti[t];
// if !b {
// fmt.Printf("tuple existence assign: mti[%d]\n", i);
// }
// }
}
// test nonexistence with tuple check
// failed lookups yield a false value for the boolean.
for i := count; i < 2*count; i++ {
s := strconv.Itoa(i);
f := float(i);
t := T{int64(i),f};
{
a, b := mib[i];
if b {
fmt.Printf("tuple nonexistence decl: mib[%d]", i);
}
a, b = mib[i];
if b {
fmt.Printf("tuple nonexistence assign: mib[%d]", i);
}
}
{
a, b := mii[i];
if b {
fmt.Printf("tuple nonexistence decl: mii[%d]", i);
}
a, b = mii[i];
if b {
fmt.Printf("tuple nonexistence assign: mii[%d]", i);
}
}
{
a, b := mfi[f];
if b {
fmt.Printf("tuple nonexistence decl: mfi[%d]", i);
}
a, b = mfi[f];
if b {
fmt.Printf("tuple nonexistence assign: mfi[%d]", i);
}
}
{
a, b := mif[i];
if b {
fmt.Printf("tuple nonexistence decl: mif[%d]", i);
}
a, b = mif[i];
if b {
fmt.Printf("tuple nonexistence assign: mif[%d]", i);
}
}
{
a, b := mis[i];
if b {
fmt.Printf("tuple nonexistence decl: mis[%d]", i);
}
a, b = mis[i];
if b {
fmt.Printf("tuple nonexistence assign: mis[%d]", i);
}
}
{
a, b := msi[s];
if b {
fmt.Printf("tuple nonexistence decl: msi[%d]", i);
}
a, b = msi[s];
if b {
fmt.Printf("tuple nonexistence assign: msi[%d]", i);
}
}
{
a, b := mss[s];
if b {
fmt.Printf("tuple nonexistence decl: mss[%d]", i);
}
a, b = mss[s];
if b {
fmt.Printf("tuple nonexistence assign: mss[%d]", i);
}
}
{
a, b := mspa[s];
if b {
fmt.Printf("tuple nonexistence decl: mspa[%d]", i);
}
a, b = mspa[s];
if b {
fmt.Printf("tuple nonexistence assign: mspa[%d]", i);
}
}
{
a, b := mipT[i];
if b {
fmt.Printf("tuple nonexistence decl: mipT[%d]", i);
}
a, b = mipT[i];
if b {
fmt.Printf("tuple nonexistence assign: mipT[%d]", i);
}
}
{
a, b := mpTi[apT[i]];
if b {
fmt.Printf("tuple nonexistence decl: mpTi[apt[%d]]", i);
}
a, b = mpTi[apT[i]];
if b {
fmt.Printf("tuple nonexistence assign: mpTi[apT[%d]]", i);
}
}
{
a, b := mipM[i];
if b {
fmt.Printf("tuple nonexistence decl: mipM[%d]", i);
}
a, b = mipM[i];
if b {
fmt.Printf("tuple nonexistence assign: mipM[%d]", i);
}
}
// {
// a, b := mti[t];
// if b {
// fmt.Printf("tuple nonexistence decl: mti[%d]", i);
// }
// a, b = mti[t];
// if b {
// fmt.Printf("tuple nonexistence assign: mti[%d]", i);
// }
// }
{
a, b := mit[i];
if b {
fmt.Printf("tuple nonexistence decl: mit[%d]", i);
}
a, b = mit[i];
if b {
fmt.Printf("tuple nonexistence assign: mit[%d]", i);
}
}
}
// tests for structured map element updates
for i := 0; i < count; i++ {
s := strconv.Itoa(i);
mspa[s][i % 2] = "deleted";
if mspa[s][i % 2] != "deleted" {
fmt.Printf("update mspa[%s][%d] = %s\n", s, i %2, mspa[s][i % 2]);
}
mipT[i].i += 1;
if mipT[i].i != int64(i)+1 {
fmt.Printf("update mipT[%d].i = %d\n", i, mipT[i].i);
}
mipT[i].f = float(i + 1);
if (mipT[i].f != float(i + 1)) {
fmt.Printf("update mipT[%d].f = %g\n", i, mipT[i].f);
}
mipM[i][i]++;
if mipM[i][i] != (i + 1) + 1 {
fmt.Printf("update mipM[%d][%d] = %i\n", i, i, mipM[i][i]);
}
}
// test range on nil map
var mnil map[string] int;
for x, y := range mnil {
panic("range mnil");
}
}