linesman v0.3.1

linesman

The functions which show the filename and line numbers if the assertion fails, and then continue.

Installation

Locally install to your project:

npm install linesman

Or globally install it:

npm install -g linesman

Usage

For a demo project with more detail, please check linesman-demo.

Demo 1

Use positive logic by default:

const {ok, no, le, se, de} = require('linesman');

ok(true);
no(false);
ok(false); // LINE 5 - **assertion failed**

le(12, 12); // Loosely Equal
le(12, '12');
se(12, 10 + 2); // Strictly Equal
se(12, '12'); // LINE 10 - **assertion failed** : not `strictly equal`

se('5' + 3, '53'); // '5' is converted to string by JS.
se('5' - 3, 2); // '5' is converted to number by JS.

// Deeply Equal
de({age: 21}, {age: 20 + 1});

Result:

$ node demo-1.js
Assertion failed at: demo-1.js:5.
   Expected  : (boolean) true
   Provided  : (boolean) false
Assertion failed at: demo-1.js:10.
   Evaluated : (number) 12
   Provided  : (string) "12"

Demo 2

Use yes (positive logic) and not(negative logic):

const {yes, not} = require('linesman');

yes.ok(true);
yes.no(false);
yes.ok(false); // LINE 5 - **assertion failed**
not.ok(false);

yes.le(12, '12'); // Loosely Equal
yes.le(12, 12);
yes.se(12, 10 + 2); // Strictly Equal
yes.se(12, '12'); // LINE 11 - **assertion failed**: not `strictly equal`

yes.se('5' + 3, '53'); // '5' is converted to string by JS.
yes.se('5' - 3, 2); // '5' is converted to number by JS.

// Deeply Equal
yes.de({age: 21}, {age: 20 + 1});

Result:

$ node demo-2.js
Assertion failed at: demo-2.js:5.
   Expected  : (boolean) true
   Provided  : (boolean) false
Assertion failed at: demo-2.js:11.
   Evaluated : (number) 12
   Provided  : (string) "12"

License

MIT