mathjs/test/error/IndexError.test.js
2014-06-09 09:34:53 +02:00

67 lines
2.2 KiB
JavaScript

var assert = require('assert'),
IndexError = require('../../lib/error/IndexError');
describe('IndexError', function () {
it('should construct an IndexError without min and max', function () {
var err = new IndexError(5);
assert(err instanceof Error);
assert(err instanceof RangeError);
assert(err instanceof IndexError);
assert.equal(err.index, 5);
assert.equal(err.min, 0);
assert.equal(err.max, undefined);
assert.equal(err.toString(), 'IndexError: Index out of range (5)');
});
it('should construct an IndexError without min and max (2)', function () {
var err = new IndexError(-5);
assert(err instanceof Error);
assert(err instanceof RangeError);
assert(err instanceof IndexError);
assert.equal(err.index, -5);
assert.equal(err.min, 0);
assert.equal(err.max, undefined);
assert.equal(err.toString(), 'IndexError: Index out of range (-5 < 0)');
});
it('should construct an IndexError with max', function () {
var err = new IndexError(5, 3);
assert(err instanceof Error);
assert(err instanceof RangeError);
assert(err instanceof IndexError);
assert.equal(err.index, 5);
assert.equal(err.min, 0);
assert.equal(err.max, 3);
assert.equal(err.toString(), 'IndexError: Index out of range (5 > 2)');
});
it('should construct an IndexError with min and max', function () {
var err = new IndexError(0, 2, 5);
assert(err instanceof Error);
assert(err instanceof RangeError);
assert(err instanceof IndexError);
assert.equal(err.index, 0);
assert.equal(err.min, 2);
assert.equal(err.max, 5);
assert.equal(err.toString(), 'IndexError: Index out of range (0 < 2)');
});
it('should construct an IndexError with min and max', function () {
var err = new IndexError(6, 1, 4);
assert(err instanceof Error);
assert(err instanceof RangeError);
assert(err instanceof IndexError);
assert.equal(err.index, 6);
assert.equal(err.min, 1);
assert.equal(err.max, 4);
assert.equal(err.toString(), 'IndexError: Index out of range (6 > 3)');
});
it('should throw an error when constructed without new operator', function() {
assert.throws(function () {
IndexError(5);
});
});
});