testnow
v2.0.9
Published
Minimalistic testing framework designed for writing inline tests
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testnow
Minimalistic testing framework
npm install testnowThis framework doesn't have any CLI, only programmatic API.
It's designed to be cross-platform and to be able to be
integrated with any build / CICD / deployment tools.
Examples are in typescript.
Setting up / describing tests
import test from "testnow";
function mySetImmediate(cb: () => void) {
return setTimeout(cb, 0);
}
test.group("mySetImmediate", () => {
test("Executes callback", (end: test.Handler) =>
mySetImmediate(() => end()));
test("May be cancelled with clearTimeout", (end: test.Handler) => {
let timeoutId = mySetImmediate(
() => end(new Error(`Callback executed`))
);
clearTimeout(timeoutId);
setTimeout(() => end(), 100);
});
});Executing tests
nodejs
import test from "testnow";
import "./mySetImmediate";
import util from "util";
test.run().then(result => {
console.log(util.inspect(result, true, 10, true));
});Several simple reporters are now built in testnow. Reporter is simply a function that
takes test results and does something with them. Usually reporters output the results somewhere.
Right now there are 4 simple reporter types: plain - using the most basic and cross-platform
console.log functionality, console and terminal - are similar to plain for now,
dom - inserts a html-formatted report as innerHTML into a given dom-node. The reporter
export provided by testnow contains not reporters themselves, but reporter creators,
functions that have optional reporter-options object as a parameter and return a reporter.
We could rewrite the above example using a simple built-in reporter which just logs results
to the console:
import test, {reporter} from "testnow";
import "./mySetImmediate";
test.run().then(result => {
reporter.plain({})(result);
});browser
import test, { reporter } from "testnow";
window.onload = () => {
test.run().then(result => {
reporter.dom({})(result);
});
}We should compile the code above into a bundle.js somehow, and then we can see the results
using following html:
<html>
<head>
<script src="bundle.js"></script>
</head>
<body>
</body>
</html>