package otto
import (
"testing"
)
func TestArray(t *testing.T) {
tt(t, func() {
test, _ := test()
test(`
var abc = [ undefined, "Nothing happens." ];
abc.length;
`, 2)
test(`
abc = ""+[0, 1, 2, 3];
def = [].toString();
ghi = [null, 4, "null"].toString();
[ abc, def, ghi ];
`, "0,1,2,3,,,4,null")
test(`new Array(0).length`, 0)
test(`new Array(11).length`, 11)
test(`new Array(11, 1).length`, 2)
test(`
abc = [0, 1, 2, 3];
abc.xyzzy = "Nothing happens.";
delete abc[1];
var xyzzy = delete abc.xyzzy;
[ abc, xyzzy, abc.xyzzy ];
`, "0,,2,3,true,")
test(`
var abc = [0, 1, 2, 3, 4];
abc.length = 2;
abc;
`, "0,1")
test(`raise:
[].length = 3.14159;
`, "RangeError")
test(`raise:
new Array(3.14159);
`, "RangeError")
test(`
Object.defineProperty(Array.prototype, "0", {
value: 100,
writable: false,
configurable: true
});
abc = [101];
abc.hasOwnProperty("0") && abc[0] === 101;
`, true)
test(`
abc = [,,undefined];
[ abc.hasOwnProperty(0), abc.hasOwnProperty(1), abc.hasOwnProperty(2) ];
`, "false,false,true")
test(`
abc = Object.getOwnPropertyDescriptor(Array, "prototype");
[ [ typeof Array.prototype ],
[ abc.writable, abc.enumerable, abc.configurable ] ];
`, "object,false,false,false")
})
}
func TestArray_toString(t *testing.T) {
tt(t, func() {
{
test(`
Array.prototype.toString = function() {
return "Nothing happens.";
}
abc = Array.prototype.toString();
def = [].toString();
ghi = [null, 4, "null"].toString();
[ abc, def, ghi ].join(",");
`, "Nothing happens.,Nothing happens.,Nothing happens.")
}
{
test(`
Array.prototype.join = undefined
abc = Array.prototype.toString()
def = [].toString()
ghi = [null, 4, "null"].toString()
abc + "," + def + "," + ghi;
`, "[object Array],[object Array],[object Array]")
}
})
}
func TestArray_toLocaleString(t *testing.T) {
tt(t, func() {
test, _ := test()
defer mockUTC()()
test(`
[ 3.14159, "abc", undefined, new Date(0) ].toLocaleString();
`, "3.14159,abc,,1970-01-01 00:00:00")
test(`raise:
[ { toLocaleString: undefined } ].toLocaleString();
`, "TypeError")
})
}
func TestArray_concat(t *testing.T) {
tt(t, func() {
test, _ := test()
test(`
abc = [0, 1, 2];
def = [-1, -2, -3];
ghi = abc.concat(def);
jkl = abc.concat(def, 3, 4, 5);
mno = def.concat(-4, -5, abc);
[ ghi, jkl, mno ].join(";");
`, "0,1,2,-1,-2,-3;0,1,2,-1,-2,-3,3,4,5;-1,-2,-3,-4,-5,0,1,2")
test(`
var abc = [,1];
var def = abc.concat([], [,]);
def.getClass = Object.prototype.toString;
[ def.getClass(), typeof def[0], def[1], typeof def[2], def.length ];
`, "[object Array],undefined,1,undefined,3")
test(`
Object.defineProperty(Array.prototype, "0", {
value: 100,
writable: false,
configurable: true
});
var abc = Array.prototype.concat.call(101);
var hasProperty = abc.hasOwnProperty("0");
var instanceOfVerify = typeof abc[0] === "object";
var verifyValue = false;
verifyValue = abc[0] == 101;
var verifyEnumerable = false;
for (var property in abc) {
if (property === "0" && abc.hasOwnProperty("0")) {
verifyEnumerable = true;
}
}
var verifyWritable = false;
abc[0] = 12;
verifyWritable = abc[0] === 12;
var verifyConfigurable = false;
delete abc[0];
verifyConfigurable = abc.hasOwnProperty("0");
[ hasProperty, instanceOfVerify, verifyValue, !verifyConfigurable, verifyEnumerable, verifyWritable ];
`, "true,true,true,true,true,true")
})
}
func TestArray_splice(t *testing.T) {
tt(t, func() {
test, _ := test()
test(`
abc = [0, 1, 2];
def = abc.splice(1, 2, 3, 4, 5);
ghi = [].concat(abc);
jkl = ghi.splice(17, 21, 7, 8, 9);
[ abc, def, ghi, jkl ].join(";");
`, "0,3,4,5;1,2;0,3,4,5,7,8,9;")
})
}
func TestArray_shift(t *testing.T) {
tt(t, func() {
test, _ := test()
test(`
abc = [0, 1, 2];
def = abc.shift();
ghi = [].concat(abc);
jkl = abc.shift();
mno = [].concat(abc);
pqr = abc.shift();
stu = [].concat(abc);
vwx = abc.shift();
[ abc, def, ghi, jkl, mno, pqr, stu, vwx ].join(";");
`, ";0;1,2;1;2;2;;")
})
}
func TestArray_push(t *testing.T) {
tt(t, func() {
test, _ := test()
test(`
abc = [0];
def = abc.push(1);
ghi = [].concat(abc);
jkl = abc.push(2,3,4);
[ abc, def, ghi, jkl ].join(";");
`, "0,1,2,3,4;2;0,1;5")
})
}
func TestArray_pop(t *testing.T) {
tt(t, func() {
test, _ := test()
test(`
abc = [0,1];
def = abc.pop();
ghi = [].concat(abc);
jkl = abc.pop();
mno = [].concat(abc);
pqr = abc.pop();
[ abc, def, ghi, jkl, mno, pqr ].join(";");
`, ";1;0;0;;")
})
}
func TestArray_slice(t *testing.T) {
tt(t, func() {
test, _ := test()
test(`
abc = [0,1,2,3];
def = abc.slice();
ghi = abc.slice(1);
jkl = abc.slice(3,-1);
mno = abc.slice(2,-1);
pqr = abc.slice(-1, -10);
[ abc, def, ghi, jkl, mno, pqr ].join(";");
`, "0,1,2,3;0,1,2,3;1,2,3;;2;")
// Array.protoype.slice is generic
test(`
abc = { 0: 0, 1: 1, 2: 2, 3: 3 };
abc.length = 4;
def = Array.prototype.slice.call(abc);
ghi = Array.prototype.slice.call(abc,1);
jkl = Array.prototype.slice.call(abc,3,-1);
mno = Array.prototype.slice.call(abc,2,-1);
pqr = Array.prototype.slice.call(abc,-1,-10);
[ abc, def, ghi, jkl, pqr ].join(";");
`, "[object Object];0,1,2,3;1,2,3;;")
})
}
func TestArray_sliceArguments(t *testing.T) {
tt(t, func() {
test, _ := test()
test(`
(function(){
return Array.prototype.slice.call(arguments, 1)
})({}, 1, 2, 3);
`, "1,2,3")
})
}
func TestArray_unshift(t *testing.T) {
tt(t, func() {
test, _ := test()
test(`
abc = [];
def = abc.unshift(0);
ghi = [].concat(abc);
jkl = abc.unshift(1,2,3,4);
[ abc, def, ghi, jkl ].join(";");
`, "1,2,3,4,0;1;0;5")
})
}
func TestArray_reverse(t *testing.T) {
tt(t, func() {
test, _ := test()
test(`
abc = [0,1,2,3].reverse();
def = [0,1,2].reverse();
[ abc, def ];
`, "3,2,1,0,2,1,0")
})
}
func TestArray_sort(t *testing.T) {
tt(t, func() {
test, _ := test()
test(`
abc = [0,1,2,3].sort();
def = [3,2,1,0].sort();
ghi = [].sort();
jkl = [0].sort();
mno = [1,0].sort();
pqr = [1,5,-10, 100, 8, 72, 401, 0.05].sort();
stu = [1,5,-10, 100, 8, 72, 401, 0.05].sort(function(x, y){
return x == y ? 0 : x < y ? -1 : 1
});
[ abc, def, ghi, jkl, mno, pqr, stu ].join(";");
`, "0,1,2,3;0,1,2,3;;0;0,1;-10,0.05,1,100,401,5,72,8;-10,0.05,1,5,8,72,100,401")
test(`Array.prototype.sort.length`, 1)
})
}
func TestArray_isArray(t *testing.T) {
tt(t, func() {
test, _ := test()
test(`
[ Array.isArray.length, Array.isArray(), Array.isArray([]), Array.isArray({}) ];
`, "1,false,true,false")
test(`Array.isArray(Math)`, false)
})
}
func TestArray_indexOf(t *testing.T) {
tt(t, func() {
test, _ := test()
test(`['a', 'b', 'c', 'b'].indexOf('b')`, 1)
test(`['a', 'b', 'c', 'b'].indexOf('b', 2)`, 3)
test(`['a', 'b', 'c', 'b'].indexOf('b', -2)`, 3)
test(`
Object.prototype.indexOf = Array.prototype.indexOf;
var abc = {0: 'a', 1: 'b', 2: 'c', length: 3};
abc.indexOf('c');
`, 2)
test(`[true].indexOf(true, "-Infinity")`, 0)
test(`
var target = {};
Math[3] = target;
Math.length = 5;
Array.prototype.indexOf.call(Math, target) === 3;
`, true)
test(`
var _NaN = NaN;
var abc = new Array("NaN", undefined, 0, false, null, {toString:function(){return NaN}}, "false", _NaN, NaN);
abc.indexOf(NaN);
`, -1)
test(`
var abc = {toString:function (){return 0}};
var def = 1;
var ghi = -(4/3);
var jkl = new Array(false, undefined, null, "0", abc, -1.3333333333333, "string", -0, true, +0, def, 1, 0, false, ghi, -(4/3));
[ jkl.indexOf(-(4/3)), jkl.indexOf(0), jkl.indexOf(-0), jkl.indexOf(1) ];
`, "14,7,7,10")
})
}
func TestArray_lastIndexOf(t *testing.T) {
tt(t, func() {
test, _ := test()
test(`['a', 'b', 'c', 'b'].lastIndexOf('b')`, 3)
test(`['a', 'b', 'c', 'b'].lastIndexOf('b', 2)`, 1)
test(`['a', 'b', 'c', 'b'].lastIndexOf('b', -2)`, 1)
test(`
Object.prototype.lastIndexOf = Array.prototype.lastIndexOf;
var abc = {0: 'a', 1: 'b', 2: 'c', 3: 'b', length: 4};
abc.lastIndexOf('b');
`, 3)
test(`
var target = {};
Math[3] = target;
Math.length = 5;
[ Array.prototype.lastIndexOf.call(Math, target) === 3 ];
`, "true")
test(`
var _NaN = NaN;
var abc = new Array("NaN", undefined, 0, false, null, {toString:function(){return NaN}}, "false", _NaN, NaN);
abc.lastIndexOf(NaN);
`, -1)
test(`
var abc = {toString:function (){return 0}};
var def = 1;
var ghi = -(4/3);
var jkl = new Array(false, undefined, null, "0", abc, -1.3333333333333, "string", -0, true, +0, def, 1, 0, false, ghi, -(4/3));
[ jkl.lastIndexOf(-(4/3)), jkl.indexOf(0), jkl.indexOf(-0), jkl.indexOf(1) ];
`, "15,7,7,10")
})
}
func TestArray_every(t *testing.T) {
tt(t, func() {
test, _ := test()
test(`raise: [].every()`, "TypeError")
test(`raise: [].every("abc")`, "TypeError")
test(`[].every(function() { return false })`, true)
test(`[1,2,3].every(function() { return false })`, false)
test(`[1,2,3].every(function() { return true })`, true)
test(`[1,2,3].every(function(_, index) { if (index === 1) return true })`, false)
test(`
var abc = function(value, index, object) {
return ('[object Math]' !== Object.prototype.toString.call(object));
};
Math.length = 1;
Math[0] = 1;
!Array.prototype.every.call(Math, abc);
`, true)
test(`
var def = false;
var abc = function(value, index, object) {
def = true;
return this === Math;
};
[11].every(abc, Math) && def;
`, true)
test(`
var def = false;
var abc = function(value, index, object) {
def = true;
return Math;
};
[11].every(abc) && def;
`, true)
})
}
func TestArray_some(t *testing.T) {
tt(t, func() {
test, _ := test()
test(`raise: [].some("abc")`, "TypeError")
test(`[].some(function() { return true })`, false)
test(`[1,2,3].some(function() { return false })`, false)
test(`[1,2,3].some(function() { return true })`, true)
test(`[1,2,3].some(function(_, index) { if (index === 1) return true })`, true)
test(`
var abc = function(value, index, object) {
return ('[object Math]' !== Object.prototype.toString.call(object));
};
Math.length = 1;
Math[0] = 1;
!Array.prototype.some.call(Math, abc);
`, true)
test(`
var abc = function(value, index, object) {
return this === Math;
};
[11].some(abc, Math);
`, true)
test(`
var abc = function(value, index, object) {
return Math;
};
[11].some(abc);
`, true)
})
}
func TestArray_forEach(t *testing.T) {
tt(t, func() {
test, _ := test()
test(`raise: [].forEach("abc")`, "TypeError")
test(`
var abc = 0;
[].forEach(function(value) {
abc += value;
});
abc;
`, 0)
test(`
abc = 0;
var def = [];
[1,2,3].forEach(function(value, index) {
abc += value;
def.push(index);
});
[ abc, def ];
`, "6,0,1,2")
test(`
var def = false;
var abc = function(value, index, object) {
def = ('[object Math]' === Object.prototype.toString.call(object));
};
Math.length = 1;
Math[0] = 1;
Array.prototype.forEach.call(Math, abc);
def;
`, true)
test(`
var def = false;
var abc = function(value, index, object) {
def = this === Math;
};
[11].forEach(abc, Math);
def;
`, true)
})
}
func TestArray_indexing(t *testing.T) {
tt(t, func() {
test, _ := test()
test(`
var abc = new Array(0, 1);
var def = abc.length;
abc[4294967296] = 10; // 2^32 => 0
abc[4294967297] = 11; // 2^32+1 => 1
[ def, abc.length, abc[0], abc[1], abc[4294967296] ];
`, "2,2,0,1,10")
test(`
abc = new Array(0, 1);
def = abc.length;
abc[4294967295] = 10;
var ghi = abc.length;
abc[4294967299] = 12;
var jkl = abc.length;
abc[4294967294] = 11;
[ def, ghi, jkl, abc.length, abc[4294967295], abc[4294967299] ];
`, "2,2,2,4294967295,10,12")
})
}
func TestArray_map(t *testing.T) {
tt(t, func() {
test, _ := test()
test(`raise: [].map("abc")`, "TypeError")
test(`[].map(function() { return 1 }).length`, 0)
test(`[1,2,3].map(function(value) { return value * value })`, "1,4,9")
test(`[1,2,3].map(function(value) { return 1 })`, "1,1,1")
test(`
var abc = function(value, index, object) {
return ('[object Math]' === Object.prototype.toString.call(object));
};
Math.length = 1;
Math[0] = 1;
Array.prototype.map.call(Math, abc)[0];
`, true)
test(`
var abc = function(value, index, object) {
return this === Math;
};
[11].map(abc, Math)[0];
`, true)
})
}
func TestArray_filter(t *testing.T) {
tt(t, func() {
test, _ := test()
test(`raise: [].filter("abc")`, "TypeError")
test(`[].filter(function() { return 1 }).length`, 0)
test(`[1,2,3].filter(function() { return false }).length`, 0)
test(`[1,2,3].filter(function() { return true })`, "1,2,3")
})
}
func TestArray_reduce(t *testing.T) {
tt(t, func() {
test, _ := test()
test(`raise: [].reduce("abc")`, "TypeError")
test(`raise: [].reduce(function() {})`, "TypeError")
test(`[].reduce(function() {}, 0)`, 0)
test(`[].reduce(function() {}, undefined)`, "undefined")
test(`['a','b','c'].reduce(function(result, value) { return result+', '+value })`, "a, b, c")
test(`[1,2,3].reduce(function(result, value) { return result + value }, 4)`, 10)
test(`[1,2,3].reduce(function(result, value) { return result + value })`, 6)
})
}
func TestArray_reduceRight(t *testing.T) {
tt(t, func() {
test, _ := test()
test(`raise: [].reduceRight("abc")`, "TypeError")
test(`raise: [].reduceRight(function() {})`, "TypeError")
test(`[].reduceRight(function() {}, 0)`, 0)
test(`[].reduceRight(function() {}, undefined)`, "undefined")
test(`['a','b','c'].reduceRight(function(result, value) { return result+', '+value })`, "c, b, a")
test(`[1,2,3].reduceRight(function(result, value) { return result + value }, 4)`, 10)
test(`[1,2,3].reduceRight(function(result, value) { return result + value })`, 6)
})
}
func TestArray_defineOwnProperty(t *testing.T) {
tt(t, func() {
test, _ := test()
test(`
var abc = [];
Object.defineProperty(abc, "length", {
writable: false
});
abc.length;
`, 0)
test(`raise:
var abc = [];
var exception;
Object.defineProperty(abc, "length", {
writable: false
});
Object.defineProperty(abc, "length", {
writable: true
});
`, "TypeError")
})
}
func TestArray_new(t *testing.T) {
tt(t, func() {
test, _ := test()
test(`
var abc = new Array(null);
var def = new Array(undefined);
[ abc.length, abc[0] === null, def.length, def[0] === undefined ]
`, "1,true,1,true")
test(`
var abc = new Array(new Number(0));
var def = new Array(new Number(4294967295));
[ abc.length, typeof abc[0], abc[0] == 0, def.length, typeof def[0], def[0] == 4294967295 ]
`, "1,object,true,1,object,true")
})
}