quickjs/tests/test_loop.js

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2020-09-06 16:53:08 +00:00
function assert(actual, expected, message) {
if (arguments.length == 1)
expected = true;
if (actual === expected)
return;
if (actual !== null && expected !== null
&& typeof actual == 'object' && typeof expected == 'object'
&& actual.toString() === expected.toString())
return;
throw Error("assertion failed: got |" + actual + "|" +
", expected |" + expected + "|" +
(message ? " (" + message + ")" : ""));
}
// load more elaborate version of assert if available
try { __loadScript("test_assert.js"); } catch(e) {}
/*----------------*/
function test_while()
{
var i, c;
i = 0;
c = 0;
while (i < 3) {
c++;
i++;
}
assert(c === 3);
}
function test_while_break()
{
var i, c;
i = 0;
c = 0;
while (i < 3) {
c++;
if (i == 1)
break;
i++;
}
assert(c === 2 && i === 1);
}
function test_do_while()
{
var i, c;
i = 0;
c = 0;
do {
c++;
i++;
} while (i < 3);
assert(c === 3 && i === 3);
}
function test_for()
{
var i, c;
c = 0;
for(i = 0; i < 3; i++) {
c++;
}
assert(c === 3 && i === 3);
c = 0;
for(var j = 0; j < 3; j++) {
c++;
}
assert(c === 3 && j === 3);
}
function test_for_in()
{
var i, tab, a, b;
tab = [];
for(i in {x:1, y: 2}) {
tab.push(i);
}
assert(tab.toString(), "x,y", "for_in");
/* prototype chain test */
a = {x:2, y: 2, "1": 3};
b = {"4" : 3 };
Object.setPrototypeOf(a, b);
tab = [];
for(i in a) {
tab.push(i);
}
assert(tab.toString(), "1,x,y,4", "for_in");
/* non enumerable properties hide enumerables ones in the
prototype chain */
a = {y: 2, "1": 3};
Object.defineProperty(a, "x", { value: 1 });
b = {"x" : 3 };
Object.setPrototypeOf(a, b);
tab = [];
for(i in a) {
tab.push(i);
}
assert(tab.toString(), "1,y", "for_in");
/* array optimization */
a = [];
for(i = 0; i < 10; i++)
a.push(i);
tab = [];
for(i in a) {
tab.push(i);
}
assert(tab.toString(), "0,1,2,3,4,5,6,7,8,9", "for_in");
/* iterate with a field */
a={x:0};
tab = [];
for(a.x in {x:1, y: 2}) {
tab.push(a.x);
}
assert(tab.toString(), "x,y", "for_in");
/* iterate with a variable field */
a=[0];
tab = [];
for(a[0] in {x:1, y: 2}) {
tab.push(a[0]);
}
assert(tab.toString(), "x,y", "for_in");
/* variable definition in the for in */
tab = [];
for(var j in {x:1, y: 2}) {
tab.push(j);
}
assert(tab.toString(), "x,y", "for_in");
/* variable assigment in the for in */
tab = [];
for(var k = 2 in {x:1, y: 2}) {
tab.push(k);
}
assert(tab.toString(), "x,y", "for_in");
}
function test_for_in2()
{
var i;
tab = [];
for(i in {x:1, y: 2, z:3}) {
if (i === "y")
continue;
tab.push(i);
}
assert(tab.toString() == "x,z");
tab = [];
for(i in {x:1, y: 2, z:3}) {
if (i === "z")
break;
tab.push(i);
}
assert(tab.toString() == "x,y");
}
function test_for_break()
{
var i, c;
c = 0;
L1: for(i = 0; i < 3; i++) {
c++;
if (i == 0)
continue;
while (1) {
break L1;
}
}
assert(c === 2 && i === 1);
}
function test_switch1()
{
var i, a, s;
s = "";
for(i = 0; i < 3; i++) {
a = "?";
switch(i) {
case 0:
a = "a";
break;
case 1:
a = "b";
break;
default:
a = "c";
break;
}
s += a;
}
assert(s === "abc" && i === 3);
}
function test_switch2()
{
var i, a, s;
s = "";
for(i = 0; i < 4; i++) {
a = "?";
switch(i) {
case 0:
a = "a";
break;
case 1:
a = "b";
break;
case 2:
continue;
default:
a = "" + i;
break;
}
s += a;
}
assert(s === "ab3" && i === 4);
}
function test_try_catch1()
{
try {
throw "hello";
} catch (e) {
assert(e, "hello", "catch");
return;
}
assert(false, "catch");
}
function test_try_catch2()
{
var a;
try {
a = 1;
} catch (e) {
a = 2;
}
assert(a, 1, "catch");
}
function test_try_catch3()
{
var s;
s = "";
try {
s += "t";
} catch (e) {
s += "c";
} finally {
s += "f";
}
assert(s, "tf", "catch");
}
function test_try_catch4()
{
var s;
s = "";
try {
s += "t";
throw "c";
} catch (e) {
s += e;
} finally {
s += "f";
}
assert(s, "tcf", "catch");
}
function test_try_catch5()
{
var s;
s = "";
for(;;) {
try {
s += "t";
break;
s += "b";
} finally {
s += "f";
}
}
assert(s, "tf", "catch");
}
function test_try_catch6()
{
function f() {
try {
s += 't';
return 1;
} finally {
s += "f";
}
}
var s = "";
assert(f() === 1);
assert(s, "tf", "catch6");
}
function test_try_catch7()
{
var s;
s = "";
try {
try {
s += "t";
throw "a";
} finally {
s += "f";
}
} catch(e) {
s += e;
} finally {
s += "g";
}
assert(s, "tfag", "catch");
}
function test_try_catch8()
{
var i, s;
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s = "";
for(var i in {x:1, y:2}) {
try {
s += i;
throw "a";
} catch (e) {
s += e;
} finally {
s += "f";
}
}
assert(s === "xafyaf");
}
test_while();
test_while_break();
test_do_while();
test_for();
test_for_break();
test_switch1();
test_switch2();
test_for_in();
test_for_in2();
test_try_catch1();
test_try_catch2();
test_try_catch3();
test_try_catch4();
test_try_catch5();
test_try_catch6();
test_try_catch7();
test_try_catch8();