Espresso

This is a custom testing framework built with javascript.

This was the first section of a project in building a single page app in vanilla javascript with no external frameworks or libraries.

Installation

Clone this repository by typing in git clone git@github.com:puyanwei/espresso.git.

Go to the project folder and copy your source files in the lib folder, and your test files in the tests folder.

Open SpecRunner.html in your text editor and require the source and test files in the location suggested.

Open SpecRunner.html in the browser to see your tests.

Testing Syntax

Use Describe to put a description of the tests. It is recommended to have multiple levels of describe for the constructor, and methods to help with the location of your tests.

describe("Espresso", () => {
  describe("#taste", () => {

  });
});

Expect compares the second parameter to the third. The first parameter is a detailed description of that is tested.

describe("Espresso", () => {
  describe("#taste", () => {
    expect.isEqual("coffee tastes good", espresso.taste, "Mmmm");
  });
});

isNull will test if it is null. The first parameter is a description and the second is what you test to check if it is null.

describe("Espresso", () => {
  describe("#exists", () => {
    expect.isNull("is there coffee in my cup?", exists());
  });
});

isTrue tests if the argument is true. The first parameter is a description and the second is what you test to see if it is true.

describe("Espresso", () => {
  describe("#name", () => {
expect.isTrue("this coffee is spelt covfefe", espresso.name() == "covfefe");  
  });
});

Those tests would be testing the following code;

function Espresso() {}

Espresso.prototype.taste = function() {
  return "Mmmm";
};

Espresso.prototype.exists = function() {
  return null;
};

Espresso.prototype.name = function() {
  return "covfefe";
};

Testing Espresso

The Espresso methods have tests within the espresso folder.

To see them require the source file from espresso/lib/espresso.js and the test file from espresso/tests/espresso-test.js to SpecRunner.html.