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'use strict';
var assert = require('assert');
var Ruler = require('../lib/ruler');
describe('Ruler', function () {
it('should replace rule (.at)', function () {
var ruler = new Ruler();
var res = 0;
ruler.push('test', function foo() { res = 1; });
ruler.at('test', function bar() { res = 2; });
var rules = ruler.getRules('');
assert.strictEqual(rules.length, 1);
rules[0]();
assert.strictEqual(res, 2);
});
it('should inject before/after rule', function () {
var ruler = new Ruler();
var res = 0;
ruler.push('test', function foo() { res = 1; });
ruler.before('test', 'before_test', function fooBefore() { res = -10; });
ruler.after('test', 'after_test', function fooAfter() { res = 10; });
var rules = ruler.getRules('');
assert.strictEqual(rules.length, 3);
rules[0]();
assert.strictEqual(res, -10);
rules[1]();
assert.strictEqual(res, 1);
rules[2]();
assert.strictEqual(res, 10);
});
it('should enable/disable rule', function () {
var rules, ruler = new Ruler();
ruler.push('test', function foo() {});
ruler.push('test2', function bar() {});
rules = ruler.getRules('');
assert.strictEqual(rules.length, 2);
ruler.disable('test');
rules = ruler.getRules('');
assert.strictEqual(rules.length, 1);
ruler.disable('test2');
rules = ruler.getRules('');
assert.strictEqual(rules.length, 0);
ruler.enable('test');
rules = ruler.getRules('');
assert.strictEqual(rules.length, 1);
ruler.enable('test2');
rules = ruler.getRules('');
assert.strictEqual(rules.length, 2);
});
it('should enable/disable multiple rule', function () {
var rules, ruler = new Ruler();
ruler.push('test', function foo() {});
ruler.push('test2', function bar() {});
ruler.disable([ 'test', 'test2' ]);
rules = ruler.getRules('');
assert.strictEqual(rules.length, 0);
ruler.enable([ 'test', 'test2' ]);
rules = ruler.getRules('');
assert.strictEqual(rules.length, 2);
});
it('should enable rules by whitelist', function () {
var rules, ruler = new Ruler();
ruler.push('test', function foo() {});
ruler.push('test2', function bar() {});
ruler.enableOnly('test');
rules = ruler.getRules('');
assert.strictEqual(rules.length, 1);
});
it('should support multiple chains', function () {
var rules, ruler = new Ruler();
ruler.push('test', function foo() {});
ruler.push('test2', function bar() {}, { alt: [ 'alt1' ] });
ruler.push('test2', function bar() {}, { alt: [ 'alt1', 'alt2' ] });
rules = ruler.getRules('');
assert.strictEqual(rules.length, 3);
rules = ruler.getRules('alt1');
assert.strictEqual(rules.length, 2);
rules = ruler.getRules('alt2');
assert.strictEqual(rules.length, 1);
});
it('should fail on invalid rule name', function () {
var ruler = new Ruler();
ruler.push('test', function foo() {});
assert.throws(function () {
ruler.at('invalid name', function bar() {});
});
assert.throws(function () {
ruler.before('invalid name', function bar() {});
});
assert.throws(function () {
ruler.after('invalid name', function bar() {});
});
assert.throws(function () {
ruler.enable('invalid name');
});
assert.throws(function () {
ruler.disable('invalid name');
});
});
it('should not fail on invalid rule name in silent mode', function () {
var ruler = new Ruler();
ruler.push('test', function foo() {});
assert.doesNotThrow(function () {
ruler.enable('invalid name', true);
});
assert.doesNotThrow(function () {
ruler.enableOnly('invalid name', true);
});
assert.doesNotThrow(function () {
ruler.disable('invalid name', true);
});
});
});