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test.html
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test.html
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<!DOCTYPE html>
<html>
<head>
<title>Tests for undo-manager</title>
<script type="text/javascript" src="build/build.js"></script>
<script type="text/javascript">
var UndoManager = require("undo-manager");
var manager = new UndoManager;
var obj = {
_foo: 0,
get foo()
{
return this._foo;
},
set foo(foo)
{
manager.registerPropertyUndo(this, "foo", this._foo);
this._foo = foo;
},
setFoo: function(foo)
{
manager.registerMethodUndo(this, this.setFoo, this._foo);
this._foo = foo;
}
};
function test(name, pass)
{
if (pass)
console.log("\tPASS:", name);
else
console.error("\tFAIL:", name);
}
function increment(times)
{
while(times--)
obj.foo++;
}
console.clear();
setTimeout(function() {
console.log("Increment obj.foo 5 times");
increment(5);
test("obj.foo === 5", obj.foo === 5);
console.log("Undo 4 times");
manager.undo();
manager.undo();
manager.undo();
manager.undo();
test("obj.foo === 1", obj.foo === 1);
console.log("Redo 3 times");
manager.redo();
manager.redo();
manager.redo();
test("obj.foo === 4", obj.foo === 4);
console.log("Undo 2 times");
manager.undo();
manager.undo();
test("obj.foo === 2", obj.foo === 2);
console.log("Set obj.foo = 6 to trash redo stack");
obj.foo = 6;
test("obj.foo === 6", obj.foo === 6);
test("manager.canRedo === false", !manager.canRedo);
console.log("Undo once");
manager.undo();
test("obj.foo === 2", obj.foo === 2);
test("manager.canRedo === true", manager.canRedo);
console.log("Redo once");
manager.redo();
test("obj.foo === 6", obj.foo === 6);
test("manager.canRedo === false", !manager.canRedo);
console.log("Increment once")
increment(1);
test("obj.foo === 7", obj.foo === 7);
console.log("Undo once");
manager.undo();
test("obj.foo === 6", obj.foo === 6);
console.log("Redo once");
manager.redo();
test("obj.foo === 7", obj.foo === 7);
console.log("Increment obj.foo 4 times within two nested groups");
manager.beginGroup();
increment(1);
manager.beginGroup();
increment(2);
manager.endGroup();
increment(1);
manager.endGroup();
test("obj.foo === 11", obj.foo === 11);
console.log("Undo once");
manager.undo();
test("obj.foo === 7", obj.foo === 7);
console.log("Redo once");
manager.redo();
test("obj.foo === 11", obj.foo === 11);
console.log("Increment once")
increment(1);
test("obj.foo === 12", obj.foo === 12);
console.log("Undo 4 times");
manager.undo();
manager.undo();
manager.undo();
manager.undo();
test("obj.foo === 2", obj.foo === 2);
console.log("obj.setFoo(20)");
obj.setFoo(20);
test("obj.foo === 20", obj.foo === 20);
console.log("Undo once");
manager.undo();
test("obj.foo === 2", obj.foo === 2);
console.log("Redo once");
manager.redo();
test("obj.foo === 20", obj.foo === 20);
console.log("Increment obj.foo 4 times within two unclosed nested groups");
manager.beginGroup();
increment(2);
manager.beginGroup();
increment(2);
test("obj.foo === 24", obj.foo === 24);
console.log("Undo twice");
manager.undo();
manager.undo();
test("obj.foo === 2", obj.foo === 2);
console.log("Redo twice");
manager.redo();
manager.redo();
test("obj.foo === 24", obj.foo === 24);
});
</script>
</head>
<body>
</body>
</html>