array.js
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define(["doh", "dojo/_base/array", "dojo/_base/lang"], function(doh, array, lang){
doh.register("tests._base.array", [
function testIndexOf(t){
var foo = [128, 256, 512];
var bar = ["aaa", "bbb", "ccc"];
t.assertEqual(1, array.indexOf([45, 56, 85], 56));
t.assertEqual(1, array.indexOf([Number, String, Date], String));
t.assertEqual(1, array.indexOf(foo, foo[1]));
t.assertEqual(2, array.indexOf(foo, foo[2]));
t.assertEqual(1, array.indexOf(bar, bar[1]));
t.assertEqual(2, array.indexOf(bar, bar[2]));
t.assertEqual(-1, array.indexOf({a:1}, "a"));
foo.push(bar);
t.assertEqual(3, array.indexOf(foo, bar));
},
function testIndexOfFromIndex(t){
var foo = [128, 256, 512];
var bar = ["aaa", "bbb", "ccc"];
t.assertEqual(-1, array.indexOf([45, 56, 85], 56, 2));
t.assertEqual(1, array.indexOf([45, 56, 85], 56, 1));
t.assertEqual(1, array.indexOf([45, 56, 85], 56, -3));
// Make sure going out of bounds doesn't throw us in an infinite loop
t.assertEqual(-1, array.indexOf([45, 56, 85], 56, 3));
},
function testLastIndexOf(t){
var foo = [128, 256, 512];
var bar = ["aaa", "bbb", "aaa", "ccc"];
t.assertEqual(1, array.indexOf([45, 56, 85], 56));
t.assertEqual(1, array.indexOf([Number, String, Date], String));
t.assertEqual(1, array.lastIndexOf(foo, foo[1]));
t.assertEqual(2, array.lastIndexOf(foo, foo[2]));
t.assertEqual(1, array.lastIndexOf(bar, bar[1]));
t.assertEqual(2, array.lastIndexOf(bar, bar[2]));
t.assertEqual(2, array.lastIndexOf(bar, bar[0]));
},
function testLastIndexOfFromIndex(t){
t.assertEqual(1, array.lastIndexOf([45, 56, 85], 56, 1));
t.assertEqual(-1, array.lastIndexOf([45, 56, 85], 85, 1));
t.assertEqual(-1, array.lastIndexOf([45, 56, 85], 85, -2));
t.assertEqual(0, array.lastIndexOf([45, 56, 45], 45, 0));
},
function testForEach(t){
var foo = [128, "bbb", 512];
array.forEach(foo, function(elt, idx, array){
switch(idx){
case 0: t.assertEqual(128, elt); break;
case 1: t.assertEqual("bbb", elt); break;
case 2: t.assertEqual(512, elt); break;
default: t.assertTrue(false);
}
});
var noException = true;
try{
array.forEach(undefined, function(){});
}catch(e){
noException = false;
}
t.assertTrue(noException);
},
function testForEach_str(t){
var bar = 'abc';
array.forEach(bar, function(elt, idx, array){
switch(idx){
case 0: t.assertEqual("a", elt); break;
case 1: t.assertEqual("b", elt); break;
case 2: t.assertEqual("c", elt); break;
default: t.assertTrue(false);
}
});
},
// FIXME: test forEach w/ a NodeList()?
function testForEach_string_callback(t){
// Test using strings as callback", which accept the parameters with
// the names "item", "index" and "array"!
var foo = [128, "bbb", 512];
// Test that the variable "item" contains the value of each item.
var obj = {
_res: ""
};
array.forEach(foo, "this._res += item", obj);
t.assertEqual(obj._res, "128bbb512");
// Test that the variable "index" contains each index.
obj._res = [];
array.forEach(foo, "this._res.push(index)", obj);
t.assertEqual(obj._res, [0,1,2]);
// Test that the variable "array" always contains the entire array.
obj._res = [];
array.forEach(foo, "this._res.push(array)", obj);
t.assertEqual(obj._res, [
[128, "bbb", 512],
[128, "bbb", 512],
[128, "bbb", 512]
]);
// Catch undefined variable usage (I used to use "i" :-)).
var caughtException = false;
try{
array.forEach(foo, "this._res += arr[i];", obj);
}catch(e){
caughtException = true;
}
t.assertTrue(caughtException);
},
// FIXME: test forEach w/ a NodeList()?
function testEvery(t){
var foo = [128, "bbb", 512];
t.assertTrue(
array.every(foo, function(elt, idx, array){
t.assertEqual(Array, array.constructor);
t.assertTrue(lang.isArray(array));
t.assertTrue(typeof idx == "number");
if(idx == 1){ t.assertEqual("bbb" , elt); }
return true;
})
);
t.assertTrue(
array.every(foo, function(elt, idx, array){
switch(idx){
case 0: t.assertEqual(128, elt); return true;
case 1: t.assertEqual("bbb", elt); return true;
case 2: t.assertEqual(512, elt); return true;
default: return false;
}
})
);
t.assertFalse(
array.every(foo, function(elt, idx, array){
switch(idx){
case 0: t.assertEqual(128, elt); return true;
case 1: t.assertEqual("bbb", elt); return true;
case 2: t.assertEqual(512, elt); return false;
default: return true;
}
})
);
},
function testEvery_str(t){
var bar = 'abc';
t.assertTrue(
array.every(bar, function(elt, idx, array){
switch(idx){
case 0: t.assertEqual("a", elt); return true;
case 1: t.assertEqual("b", elt); return true;
case 2: t.assertEqual("c", elt); return true;
default: return false;
}
})
);
t.assertFalse(
array.every(bar, function(elt, idx, array){
switch(idx){
case 0: t.assertEqual("a", elt); return true;
case 1: t.assertEqual("b", elt); return true;
case 2: t.assertEqual("c", elt); return false;
default: return true;
}
})
);
},
// FIXME: test NodeList for every()?
function testSome(t){
var foo = [128, "bbb", 512];
t.assertTrue(
array.some(foo, function(elt, idx, array){
t.assertEqual(3, array.length);
return true;
})
);
t.assertTrue(
array.some(foo, function(elt, idx, array){
return idx < 1;
})
);
t.assertFalse(
array.some(foo, function(elt, idx, array){
return false;
})
);
t.assertTrue(
array.some(foo, function(elt, idx, array){
t.assertEqual(Array, array.constructor);
t.assertTrue(lang.isArray(array));
t.assertTrue(typeof idx == "number");
if(idx == 1){ t.assertEqual("bbb" , elt); }
return true;
})
);
},
function testSome_str(t){
var bar = 'abc';
t.assertTrue(
array.some(bar, function(elt, idx, array){
t.assertEqual(3, array.length);
switch(idx){
case 0: t.assertEqual("a", elt); return true;
case 1: t.assertEqual("b", elt); return true;
case 2: t.assertEqual("c", elt); return true;
default: return false;
}
})
);
t.assertTrue(
array.some(bar, function(elt, idx, array){
switch(idx){
case 0: t.assertEqual("a", elt); return true;
case 1: t.assertEqual("b", elt); return true;
case 2: t.assertEqual("c", elt); return false;
default: return true;
}
})
);
t.assertFalse(
array.some(bar, function(elt, idx, array){
return false;
})
);
},
// FIXME: need to add scoping tests for all of these!!!
function testFilter(t){
var foo = ["foo", "bar", 10];
t.assertEqual(["foo"],
array.filter(foo, function(elt, idx, array){
return idx < 1;
})
);
t.assertEqual(["foo"],
array.filter(foo, function(elt, idx, array){
return elt == "foo";
})
);
t.assertEqual([],
array.filter(foo, function(elt, idx, array){
return false;
})
);
t.assertEqual([10],
array.filter(foo, function(elt, idx, array){
return typeof elt == "number";
})
);
},
function testFilter_str(t){
var foo = "thinger blah blah blah";
t.assertEqual(["t", "h", "i"],
array.filter(foo, function(elt, idx, array){
return idx < 3;
})
);
t.assertEqual([],
array.filter(foo, function(elt, idx, array){
return false;
})
);
},
function testMap(t){
t.assertEqual([],
array.map([], function(){ return true; })
);
t.assertEqual([1, 2, 3],
array.map(["cat", "dog", "mouse"], function(elt, idx, array){
return idx+1;
})
);
}
]);
});