mirror of https://github.com/n2geoff/testit.git
replace expect with simpler assert
This commit is contained in:
parent
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36
README.md
36
README.md
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@ -2,7 +2,7 @@
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> A minimalistic testing library
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> A minimalistic testing library
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**Test.it** is a small testing library for people that want to live in code, not in tests. No over engineering here. Inspired by the simplicity of libraries like [Tape](https://github.com/substack/tape),but the implementation ideas of things like [Expect](https://github.com/Automattic/expect.js) and [TinyTest](https://github.com/joewalnes/jstinytest)
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**Test.it** is a small client-side testing library for people that want to live in code, not in tests. No over engineering here. Inspired by the simplicity of libraries like [Jasmine](https://jasmine.github.io/), but implementation ideas based on [TinyTest](https://github.com/joewalnes/jstinytest)
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This is probally not a *cure-all* testing solution, if you want something more robust checkout [Jasmine](https://jasmine.github.io/), [Tape](https://github.com/substack/tape) or [Mocha](https://mochajs.org/) -- this is to...
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This is probally not a *cure-all* testing solution, if you want something more robust checkout [Jasmine](https://jasmine.github.io/), [Tape](https://github.com/substack/tape) or [Mocha](https://mochajs.org/) -- this is to...
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@ -11,13 +11,12 @@ This is probally not a *cure-all* testing solution, if you want something more r
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### Features
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### Features
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- Designed for the Browser
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- Designed for the Browser
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- Works with NodeJS
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- *Under* a 100 lines
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- *Under* a 100 lines
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- Single File
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- Single File
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- No Dependicies
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- No Dependicies
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- 2kb footprint (*before gzip*)
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- 2kb footprint (*before gzip*)
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- Extend with custom reporters
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- Extend with custom reporters
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- Has an Expect-like style BDD assertions
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- Uses Simple Assert
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**No Bloat Here!**
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**No Bloat Here!**
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@ -29,12 +28,14 @@ This is probally not a *cure-all* testing solution, if you want something more r
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By default, you can run your tests like
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By default, you can run your tests like
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```js
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```js
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import test from 'testit';
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test.it({
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test.it({
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'my passing test': function() {
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'my passing test': function() {
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test.expects().to.pass();
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test.assert(true);
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},
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},
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'my failing test': function() {
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'my failing test': function() {
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test.expects().to.fail('just wanted to fail fast');
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test.assert(true === false, 'just wanted to fail fast');
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}
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}
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}).run();
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}).run();
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```
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```
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@ -68,7 +69,7 @@ For Example...
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```js
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```js
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test.it({
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test.it({
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'my passing test': function() {
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'my passing test': function() {
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test.pass();
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test.assert(true);
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}
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}
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}, function(results) {
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}, function(results) {
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if (window.document && document.body) {
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if (window.document && document.body) {
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@ -92,38 +93,27 @@ From this object you can easily find the number of tests ran `pass.length`, numb
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> REMEMBER: you can bypass error output too
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> REMEMBER: you can bypass error output too
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A sample test runner is provided for both **HTML** and **NODE** in the `test/` directory; `run.html` and `run.js` respectfully.
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A sample test runner is provided for the **BROWSER** in the `test/` directory; `index.html` and `runner.js` respectfully, with the spec in `index.spec.js`.
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## Methods
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## Methods
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To stay minimal, `test.it` only has 3 core functions:
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To stay minimal, `test.it` only has 3 core functions:
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- `it` to capture your tests
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- `it` to capture your tests
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- `run` to execute yours tests
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- `run` to execute yours tests
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- and `expects` to write your assertions
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- and `assert` to write your assertions
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While you can use your own assertion library, the included `expects` provides the following methods for writing your tests:
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While you can use your own assertion library, the included `assert` evaluates an expression/condition tests:
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| Methods | Description |
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| --------------------------------- | --------------------------------------- |
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| `.expects(tests).to.exist()` | truthy evalution `.exist` or `.be.ok()` |
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| `.expects().to.pass()` | pass test |
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| `.expects().to.fail(message)` | fails test with message |
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| `.expects(this).to.equal(that)` | strictly equal evaluation using `===` |
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| `.expects(this).to.be.like(that)` | loose evaluation using `==` |
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| `.expects(123).to.be.a('number')` | check typeof value (`.a()` or `.an()`) |
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> NOTE: wish `eval` was not so evil, `assert(expression, message)` would be ideal
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if you want to shorten test typing try
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if you want to shorten test typing try
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let expect = test.expects;
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let assert = test.assert;
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putting that above your tests will allow you to write like
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putting that above your tests will allow you to write like
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```js
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```js
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test.it({
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test.it({
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"my test should work": function() {
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"my test should work": function() {
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expect().to.pass();
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assert(true);
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}
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}
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});
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});
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## TODO
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## TODO
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- write `not` expects, ie `expects(this).to.not.equal(this)`
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- provide sample test runner for CI environments
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- provide sample test runner for CI environments
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- maybe spec files export results && runner identifies failure
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## Support
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## Support
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@ -48,46 +48,14 @@ const test = {
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this._tests = tests;
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this._tests = tests;
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return this;
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return this;
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},
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},
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"expects": function expects(val) {
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"assert": (expression, msg) => {
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return {
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try {
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"to": {
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if(!expression) {
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"be": {
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throw new Error(msg || "Assertion Failed");
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"a": (type) => { return test.expects(val).to.be.an(type); },
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"an": (type) => {
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if(["array"].indexOf(type) !== -1) {
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if(val.constructor.name.toLowerCase() !== "array") {
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throw new Error(`expected ${typeof val} to be an ${type}`);
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}
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return true;
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}
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if(typeof val !== type) {
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throw new Error(`expected ${typeof val} to be an ${type}`);
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}
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},
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"ok": () => { return test.expects(val).to.exist(); },
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"like": (comp) => {
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if(val != comp) {
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throw new Error(`expected ${val} == ${comp}`);
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}
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}
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},
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"equal": (comp) => {
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if(val !== comp) {
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throw new Error(`expected ${val} === ${comp}`);
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}
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},
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"exist": () => {
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if(!val) {
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throw new Error(`expected ${val} to be truthy`);
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}
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},
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"pass": () => { return true; },
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"fail": (msg) => { throw new Error(msg); }
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}
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}
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};
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} catch (e) {
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throw new Error(msg);
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}
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}
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}
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};
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};
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<meta http-equiv="x-ua-compatible" content="ie=edge">
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<title>Test It Spec</title>
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<style>
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#summary {font-size: 2rem; text-transform: uppercase;}
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</style>
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</head>
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<body>
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<div id="summary"></div>
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<div id="errors"></div>
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<script type="module" src="./runner.js"></script>
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</body>
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</html>
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function spec(test) {
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import test from "../src/testit.js";
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// npm run test
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if(!test) {
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try {
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var test = require("../dist/testit.umd.js");
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} catch(e) {};
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}
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return {
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export default test.it({
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"'like' should do truthy evaluation via ==": function() {
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"'like' should do truthy evaluation via ==": function () {
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test.expects(1).to.be.like('1');
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test.assert(1 == '1');
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test.expects("1").to.be.like(1);
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test.assert(1);
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test.expects(1).to.be.ok();
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},
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},
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"'equal' should do === evaluation exist": function () {
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"'equal' should do === evaluation exist": function() {
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test.assert(1 === 1);
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test.expects(1).to.equal(1);
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test.assert('hello' === 'hello');
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test.expects('hello').to.equal('hello');
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},
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},
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"you should be able to 'pass' a test": function () {
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"you should be able to 'pass' a test": function() {
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test.assert(1);
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test.expects().to.pass();
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},
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},
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"you should be able to fail' a test too": function () {
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"you should be able to fail' a test too": function() {
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try {
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try {
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test.assert(0);
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test.expects().to.fail();
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} catch (e) {
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} catch(e) {
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test.expects().to.pass();
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}
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},
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"you should be able to test if something 'exists'": function() {
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test.expects({}).to.exist();
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test.expects({}).to.be.ok();
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test.expects({}).to.be.a('object');
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},
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"should be able to check types": function() {
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test.expects(123).to.be.a('number');
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test.expects([]).to.be.an('array');
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test.expects({}).to.be.a('object');
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test.expects(true).to.be.a('boolean');
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test.expects(false).to.be.a('boolean');
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test.expects(undefined).to.be.a('undefined');
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}
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}
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};
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},
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}
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"you should be able to test if something 'exists'": function () {
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test.assert({});
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test.assert(typeof ({}) === 'object');
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},
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"should be able to check types": function () {
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test.assert(Array.isArray([]));
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test.assert(typeof (123) === 'number');
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test.assert(typeof ({}) === 'object');
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test.assert(typeof (true) === 'boolean');
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test.assert(typeof (false) === 'boolean');
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test.assert(typeof (undefined) === 'undefined');
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}
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});
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<meta http-equiv="x-ua-compatible" content="ie=edge">
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<title>Test It Spec</title>
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<script src="index.spec.js"></script>
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<style>
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#summary {font-size: 2rem; text-transform: uppercase;}
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</style>
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</head>
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<body>
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<div id="summary"></div>
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<div id="errors"></div>
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<script type="module">
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import test from "../src/testit.js";
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test.it(spec(test)).run(false, function(r) {
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let errors = [];
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document.body.style.backgroundColor = (
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r.fail.length ? "#ff9999" : "#99ff99"
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);
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r.pass.forEach((p) => errors.push(`<br>${p}`));
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r.fail.forEach((f) => errors.push(`<br><b>${f}</b>`));
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document.querySelector('#errors').innerHTML = errors;
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document.querySelector('#summary').innerHTML = `tests: ${r.pass.length + r.fail.length} pass: ${r.pass.length} fail: ${r.fail.length}`;
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});
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</script>
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</body>
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</html>
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25
test/run.js
25
test/run.js
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var path = require("path");
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var fs = require("fs");
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var test = require("../dist/testit.umd.js");
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fs.readdir(__dirname, function(err, files) {
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if(err) {
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process.exit(1);
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}
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var tests = files.filter(function(item) {
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return item.indexOf("spec.js") !== -1;
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});
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tests.forEach(function(file) {
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console.log(`: ${file}`);
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var me = fs.readFileSync(path.join(__dirname, file));
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// eval can be evil, but it is YOUR code, are you evil?
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eval(me.toString());
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test.it(spec()).run();
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});
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});
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import spec from "./index.spec.js";
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spec.run(false, function (r) {
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let errors = [];
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document.body.style.backgroundColor = (
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r.fail.length ? "#ff9999" : "#99ff99"
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);
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r.pass.forEach((p) => errors.push(`<br>${p}`));
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r.fail.forEach((f) => errors.push(`<br><b>${f}</b>`));
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document.querySelector('#errors').innerHTML = errors;
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document.querySelector('#summary').innerHTML = `| tests: ${r.pass.length + r.fail.length} | pass: ${r.pass.length} | fail: ${r.fail.length} |`;
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});
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