In this post, we have introduces the simplest way of doing unit tests in VBScript, here is the equivalent version in Javascript. With Javascript, it allows more flexible and powerful syntax. So you can throw exceptions which makes more sense when things go wrong.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | // Simple Unit Tests in Javascript var Assert = { IsTrue: function(x, msg) { if (!x) { throw msg; } }, IsFalse: function(x, msg) { this.IsTrue(!x, msg); }, AreEqual: function(a, b, msg) { if (a !== b) { throw msg; } } } |
// Simple Unit Tests in Javascript
var Assert = {
IsTrue: function(x, msg) {
if (!x) {
throw msg;
}
},
IsFalse: function(x, msg) {
this.IsTrue(!x, msg);
},
AreEqual: function(a, b, msg) {
if (a !== b) {
throw msg;
}
}
}You could keep adding more test methods such as AreDifferent, AreSame, IsNotNull etc. The following will fail the test, just to demonstrate the usage:
1 2 3 4 5 | try { Assert.AreEqual(1, "1", "not equal"); } catch(e) { WScript.Echo(e); } |
try {
Assert.AreEqual(1, "1", "not equal");
} catch(e) {
WScript.Echo(e);
}You can wrap all the tests in a JS file, and run (e.g. using cscript.exe or nodejs) the test file capture any exceptions/output.
–EOF (The Ultimate Computing & Technology Blog) —
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You could also use some assertion libraries like ‘should’, ‘expect’ and ‘assert’. For unit test, you can use Chai or Mocha.
I know, this just demonstrates the basis, the prototyping.