Basic, automatic JavaScript testing. Requires jQuery. This is just a start. TypedJS will soon provide more complex forms of program specification, and analysis. The goal: safe, correct JavaScript.
(Warning: In need of some refactoring).
First, annotate your javascript functions with Haskell-like type signatures:
//+ str_first :: String -> String -> String
function str_first(c1,c2){
return c1;
}
//+ my_prop :: {name:String, valid:Boolean} -> Boolean
function my_prop(obj){
if(obj.valid === true){
return "true"; // Error, we are
} // returning a string here
else{
return obj.valid;
}
};
// We can do objects, too:
MyObj = {
//+ MyObj.test_fun :: Number -> Number -> Number
test_fun:function(num1, num2){
return num1 + num2;
}
}
Then load your JavaScript file in a browser window and run:
TypedJS.run_tests()
If you want to instrument your annotated functions to dynamically detect type violations, run:
TypedJS.run_tests(true)
Currently available primitives:
Number
String
Boolean
And ORs of primitives:
Number | String // Number or String
Boolean | Number // Boolean or Number
...
And tuples (T1, T2, ... TN). For instance:
(Number, String, Boolean, Boolean) // An example instance => [4,"hello",true,true]
(Boolean, Boolean) // An example instance => [true, false]
And arrays:
[Number] // Array of Numbers. Example instances => [3,4,5] or [45,62,34,78,23]
[Number | String] // Array of Numbers or Strings. Example instance => [3,"s",5,6,"h"]
And objects, which can be nested and mixed with other types. For instance:
{key1: String, key2:[Number], key3:{subkey1:String, subkey2: Number}}
Copyright (C) 2012 Taazr Corporation
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