| Conditions | 11 |
| Paths | 1 |
| Total Lines | 67 |
| Lines | 0 |
| Ratio | 0 % |
| Changes | 1 | ||
| Bugs | 0 | Features | 0 |
Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.
For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.
Commonly applied refactorings include:
If many parameters/temporary variables are present:
Complex classes like Transition.spec.js ➔ ... ➔ describe(ꞌ#run()ꞌ) often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
| 1 | /* eslint-env mocha */ |
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| 79 | describe('#run()', function () { |
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| 80 | it('throws on second call', function () { |
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| 81 | var transition = factory() |
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| 82 | transition.run() |
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| 83 | expect(transition.run).to.throw() |
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| 84 | }) |
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| 85 | |||
| 86 | it('ends with Executed status if everything went smoothly', function () { |
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| 87 | var value = {x: 12} |
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| 88 | var target = stateFactory(function () { |
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| 89 | return value |
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| 90 | }) |
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| 91 | var transition = factory(target) |
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| 92 | return transition |
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| 93 | .run() |
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| 94 | .then(function (result) { |
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| 95 | expect(result.value).to.eq(value) |
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| 96 | expect(result.status).to.eq(Transition.Status.Executed) |
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| 97 | }) |
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| 98 | }) |
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| 99 | |||
| 100 | it('ends with Executed status if timeout handler has rescued situation', function () { |
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| 101 | var value = {x: 12} |
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| 102 | var target = stateFactory() |
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| 103 | var promise = new Promise(function () {}) |
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| 104 | target.transition.handler = Sinon.stub().returns(promise) |
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| 105 | target.transition.timeout = 0 |
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| 106 | target.transition.onTimeout.handler = Sinon.stub().returns(value) |
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| 107 | var transition = factory(target) |
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| 108 | return transition |
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| 109 | .run() |
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| 110 | .then(function (result) { |
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| 111 | expect(target.transition.handler.callCount).to.eq(1) |
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| 112 | expect(target.transition.onTimeout.handler.callCount).to.eq(1) |
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| 113 | var token = target.transition.handler.getCall(0).args[2] |
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| 114 | expect(token.isCancelled()).to.be.true |
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| 115 | expect(result.value).to.eq(value) |
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| 116 | expect(result.status).to.eq(Status.Executed) |
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| 117 | }) |
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| 118 | }) |
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| 119 | |||
| 120 | it('ends with ExecutionFailure status if everything has timed out', function () { |
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| 121 | var target = stateFactory(function () { |
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| 122 | return new Promise(function () { |
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| 123 | }) |
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| 124 | }, 0) |
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| 125 | var transition = factory(target) |
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| 126 | return transition |
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| 127 | .run() |
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| 128 | .then(function (result) { |
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| 129 | expect(result.value).to.be.instanceOf(TimeoutException) |
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| 130 | expect(result.status).to.eq(Status.ExecutionFailure) |
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| 131 | }) |
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| 132 | }) |
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| 133 | |||
| 134 | it('passes hints to handler', function () { |
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| 135 | var target = stateFactory() |
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| 136 | var hints = {x: 12} |
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| 137 | var transition = factory(target, hints) |
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| 138 | return transition |
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| 139 | .run() |
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| 140 | .then(function () { |
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| 141 | var arg = target.transition.handler.getCall(0).args[1] |
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| 142 | expect(arg).to.eq(hints) |
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| 143 | }) |
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| 144 | }) |
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| 145 | }) |
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| 146 | |||
| 290 |