jquery/test/lib/Test/More.js
2006-08-13 15:24:52 +00:00

429 lines
13 KiB
JavaScript

// # $Id: Kinetic.pm 1493 2005-04-07 19:20:18Z theory $
// Create a namespace for ourselves.
// Set up package.
if (typeof JSAN != 'undefined') new JSAN().use('Test.Builder');
else {
if (typeof Test == 'undefined' || typeof Test.Builder == 'undefined')
throw new Error(
"You must load either JSAN or Test.Builder "
+ "before loading Test.More"
);
}
Test.More = {};
Test.More.EXPORT = [
'plan',
'ok', 'is', 'isnt',
'like', 'unlike',
'cmpOK', 'canOK', 'isaOK',
'pass', 'fail', 'diag', 'loadOK',
'skip', 'todo', 'todoSkip', 'skipRest',
'isDeeply', 'isSet', 'isa'
];
Test.More.EXPORT_TAGS = { ':all': Test.More.EXPORT };
Test.More.VERSION = '0.11';
Test.More.ShowDiag = true;
Test.Builder.DNE = { dne: 'Does not exist' };
Test.More.Test = new Test.Builder();
Test.More.builder = function () { return Test.More.Test; };
Test.More.plan = function (cmds) {
if (cmds.noDiag) {
Test.More.ShowDiag = false;
delete cmds.noDiag;
}
return Test.More.Test.plan.apply(Test.More.Test, [cmds]);
};
Test.More.ok = function (test, desc) {
return Test.More.Test.ok(test, desc);
};
Test.More.is = function (got, expect, desc) {
return Test.More.Test.isEq(got, expect, desc);
};
Test.More.isnt = function (got, expect, desc) {
return Test.More.Test.isntEq(got, expect, desc);
};
Test.More.like = function (val, regex, desc) {
return Test.More.Test.like(val, regex, desc);
};
Test.More.unlike = function (val, regex, desc) {
return Test.More.Test.unlike(val, regex, desc);
};
Test.More.cmpOK = function (got, op, expect, desc) {
return Test.More.Test.cmpOK(got, op, expect, desc);
};
Test.More.canOK = function (proto) {
var ok;
// Make sure they passed some method names for us to check.
if (!arguments.length > 1) {
ok = Test.More.Test.ok(false, clas + '.can(...)');
Test.More.Test.diag(' canOK() called with no methods');
return ok;
}
// Get the class name and the prototype.
var clas;
if (typeof proto == 'string') {
// We just have a class name.
clas = proto;
proto = eval(clas + '.prototype');
} else {
// We have an object or something that can be converted to an object.
clas = Test.Builder.typeOf(proto);
proto = proto.constructor.prototype;
}
var nok = [];
for (var i = 1; i < arguments.length; i++) {
var method = arguments[i];
if (typeof proto[method] != 'function') nok.push(method);
}
// There'es no can() method in JavaScript, but what the hell!
var desc = clas + ".can('" + (arguments.length == 2 ? arguments[1] : '...') + "')";
ok = Test.More.Test.ok(!nok.length, desc);
for (var i = 0; i < nok.length; i++) {
Test.More.Test.diag(' ' + clas + ".can('" + nok[i] + "') failed");
}
return ok;
};
Test.More.isaOK = function (object, clas, objName) {
var mesg;
if (objName == null) objName = 'The object';
var name = objName + ' isa ' + clas;
if (object == null) {
mesg = objName + " isn't defined";
} else if (!Test.More._isRef(object)) {
mesg = objName + " isn't a reference";
} else {
var ctor = eval(clas);
if (Object.isPrototypeOf) {
// With JavaScript 1.5, we can determine inheritance.
if (!ctor.prototype.isPrototypeOf(object)) {
mesg = objName + " isn't a '" + clas + "' it's a '"
+ Test.Builder.typeOf(object) + "'";
}
} else {
// We can just determine what constructor was used. This will
// not work for inherited constructors.
if (object.constructor != ctor)
mesg = objName + " isn't a '" + clas + "' it's a '"
+ Test.Builder.typeOf(object) + '"';
}
}
var ok;
if (mesg) {
ok = Test.More.Test.ok(false, name);
Test.More.Test.diag(' ' + mesg);
} else {
ok = Test.More.Test.ok(true, name);
}
return ok;
};
Test.More.pass = function (name) {
return Test.More.Test.ok(true, name);
};
Test.More.fail = function (name) {
return Test.More.Test.ok(false, name);
};
Test.More.diag = function () {
if (!Test.More.ShowDiag) return;
return Test.More.Test.diag.apply(Test.More.Test, arguments);
};
// Use this instead of use_ok and require_ok.
Test.More.loadOK = function () {
// XXX What do I do here? Eval?
// XXX Just always fail for now, to keep people from using it just yet.
return false;
};
Test.More.skip = function (why, howMany) {
if (howMany == null) {
if (!Test.Builder.NoPlan)
Test.More.Test.warn("skip() needs to know howMany tests are in the block");
howMany = 1;
}
for (i = 0; i < howMany; i++) {
Test.More.Test.skip(why);
}
};
Test.More.todo = function (why, howMany) {
if (howMany == null) {
if (!Test.Builder.NoPlan)
Test.More.Test.warn("todo() needs to know howMany tests are in the block");
howMany = 1;
}
return Test.More.Test.todo(why, howMany);
};
Test.More.todoSkip = function (why, howMany) {
if (howMany == null) {
if (!Test.Builder.NoPlan)
Test.More.Test.warn("todoSkip() needs to know howMany tests are in the block");
howMany = 1;
}
for (i = 0; i < howMany; i++) {
Test.More.Test.todoSkip(why);
}
};
Test.More.skipRest = function (why) {
Test.More.Test.skipRest(why);
};
Test.More.isDeeply = function (it, as, name) {
if (arguments.length != 2 && arguments.length != 3) {
Test.More.Test.warn(
'isDeeply() takes two or three args, you gave '
+ arguments.length + "."
);
}
var ok;
// ^ is the XOR operator.
if (Test.More._isRef(it) ^ Test.More._isRef(as)) {
// One's a reference, one isn't.
ok = false;
} else if (!Test.More._isRef(it) && !Test.More._isRef(as)) {
// Neither is an object.
ok = Test.More.Test.isEq(it, as, name);
} else {
// We have two objects. Do a deep comparison.
var stack = [], seen = [];
if ( Test.More._deepCheck(it, as, stack, seen)) {
ok = Test.More.Test.ok(true, name);
} else {
ok = Test.More.Test.ok(false, name);
Test.More.Test.diag(Test.More._formatStack(stack));
}
}
return ok;
};
Test.More._deepCheck = function (e1, e2, stack, seen) {
var ok = false;
// Either they're both references or both not.
var sameRef = !(!Test.More._isRef(e1) ^ !Test.More._isRef(e2));
if (e1 == null && e2 == null) {
ok = true;
} else if (e1 != null ^ e2 != null) {
ok = false;
} else if (e1 == Test.More.DNE ^ e2 == Test.More.DNE) {
ok = false;
} else if (sameRef && e1 == e2) {
// Handles primitives and any variables that reference the same
// object, including functions.
ok = true;
} else if (isa(e1, 'Array') && isa(e2, 'Array')) {
ok = Test.More._eqArray(e1, e2, stack, seen);
} else if (typeof e1 == "object" && typeof e2 == "object") {
ok = Test.More._eqAssoc(e1, e2, stack, seen);
} else {
// If we get here, they're not the same (function references must
// always simply rererence the same function).
stack.push({ vals: [e1, e2] });
ok = false;
}
return ok;
};
Test.More._isRef = function (object) {
var type = typeof object;
return type == 'object' || type == 'function';
};
Test.More._formatStack = function (stack) {
var variable = '$Foo';
for (var i = 0; i < stack.length; i++) {
var entry = stack[i];
var type = entry['type'];
var idx = entry['idx'];
if (idx != null) {
if (/^\d+$/.test(idx)) {
// Numeric array index.
variable += '[' + idx + ']';
} else {
// Associative array index.
idx = idx.replace("'", "\\'");
variable += "['" + idx + "']";
}
}
}
var vals = stack[stack.length-1]['vals'].slice(0, 2);
var vars = [
variable.replace('$Foo', 'got'),
variable.replace('$Foo', 'expected')
];
var out = "Structures begin differing at:" + Test.Builder.LF;
for (var i = 0; i < vals.length; i++) {
var val = vals[i];
if (val == null) {
val = 'undefined';
} else {
val == Test.More.DNE ? "Does not exist" : "'" + val + "'";
}
}
out += vars[0] + ' = ' + vals[0] + Test.Builder.LF;
out += vars[1] + ' = ' + vals[1] + Test.Builder.LF;
return ' ' + out;
};
/* Commented out per suggestion from Michael Schwern. It turned out to be
confusing to Test::More users because it isn't atually a test. Use
isDeeply() instead and don't worry about it.
Test.More.eqArray = function (a1, a2) {
if (!isa(a1, 'Array') || !isa(a2, 'Array')) {
Test.More.Test.warn("Non-array passed to eqArray()");
return false;
}
return Test.More._eqArray(a1, a2, [], []);
};
*/
Test.More._eqArray = function (a1, a2, stack, seen) {
// Return if they're the same object.
if (a1 == a2) return true;
// JavaScript objects have no unique identifiers, so we have to store
// references to them all in an array, and then compare the references
// directly. It's slow, but probably won't be much of an issue in
// practice. Start by making a local copy of the array to as to avoid
// confusing a reference seen more than once (such as [a, a]) for a
// circular reference.
for (var j = 0; j < seen.length; j++) {
if (seen[j][0] == a1) {
return seen[j][1] == a2;
}
}
// If we get here, we haven't seen a1 before, so store it with reference
// to a2.
seen.push([ a1, a2 ]);
var ok = true;
// Only examines enumerable attributes. Only works for numeric arrays!
// Associative arrays return 0. So call _eqAssoc() for them, instead.
var max = a1.length > a2.length ? a1.length : a2.length;
if (max == 0) return Test.More._eqAssoc(a1, a2, stack, seen);
for (var i = 0; i < max; i++) {
var e1 = i > a1.length - 1 ? Test.More.DNE : a1[i];
var e2 = i > a2.length - 1 ? Test.More.DNE : a2[i];
stack.push({ type: 'Array', idx: i, vals: [e1, e2] });
if (ok = Test.More._deepCheck(e1, e2, stack, seen)) {
stack.pop();
} else {
break;
}
}
return ok;
};
/* Commented out per suggestion from Michael Schwern. It turned out to be
confusing to Test::More users because it isn't atually a test. Use
isDeeply() instead and don't worry about it.
Test.More.eqHash = function () {
return eqAssoc.apply(this, arguments);
};
Test.More.eqAssoc = function (o1, o2) {
if (typeof o1 != "object" || typeof o2 != "object") {
Test.More.Test.warn("Non-object passed to eqAssoc()");
return false;
} else if ( (isa(o1, 'Array') && o1.length > 0)
|| (isa(o2, 'Array') && o2.length > 0))
{
Test.More.Test.warn("Ordered array passed to eqAssoc()");
return false;
}
return Test.More._eqAssoc(o1, o2, [], []);
};
*/
Test.More._eqAssoc = function (o1, o2, stack, seen) {
// Return if they're the same object.
if (o1 == o2) return true;
// JavaScript objects have no unique identifiers, so we have to store
// references to them all in an array, and then compare the references
// directly. It's slow, but probably won't be much of an issue in
// practice. Start by making a local copy of the array to as to avoid
// confusing a reference seen more than once (such as [a, a]) for a
// circular reference.
seen = seen.slice(0);
for (var j = 0; j < seen.length; j++) {
if (seen[j][0] == o1) {
return seen[j][1] == o2;
}
}
// If we get here, we haven't seen o1 before, so store it with reference
// to o2.
seen.push([ o1, o2 ]);
// They should be of the same class.
var ok = true;
// Only examines enumerable attributes.
var o1Size = 0; for (var i in o1) o1Size++;
var o2Size = 0; for (var i in o2) o2Size++;
var bigger = o1Size > o2Size ? o1 : o2;
for (var i in bigger) {
var e1 = o1[i] == undefined ? Test.More.DNE : o1[i];
var e2 = o2[i] == undefined ? Test.More.DNE : o2[i];
stack.push({ type: 'Object', idx: i, vals: [e1, e2] });
if (ok = Test.More._deepCheck(e1, e2, stack, seen)) {
stack.pop();
} else {
break;
}
}
return ok;
};
Test.More._eqSet = function (a1, a2, stack, seen) {
return Test.More._eqArray(a1.slice(0).sort(), a2.slice(0).sort(), stack, seen);
};
Test.More.isSet = function (a1, a2, desc) {
var stack = [], seen = [], ok = true;
if (Test.More._eqSet(a1, a2, stack, seen)) {
ok = Test.More.Test.ok(true, desc);
} else {
ok = Test.More.Test.ok(false, desc);
Test.More.Test.diag(Test.More._formatStack(stack));
}
return ok;
};
Test.More.isa = function (object, clas) {
return Test.Builder.typeOf(object) == clas;
};
// Handle exporting.
if (typeof JSAN == 'undefined') Test.Builder.exporter(Test.More);