feat: 초기 프로젝트 설정 및 룰.md 파일 추가

api.hyungi.net/node_modules/shimmer/test/massWrap.tap.js

@@ -0,0 +1,174 @@
+'use strict'
+
+var tap = require('tap')
+var test = tap.test
+var sinon = require('sinon')
+var shimmer = require('../index.js')
+
+var outsider = 0
+function counter () { return ++outsider }
+function anticounter () { return --outsider }
+
+var generator = {
+  inc: counter,
+  dec: anticounter
+}
+
+var arrow = {
+  in: counter,
+  out: anticounter
+}
+
+var nester = {
+  in: counter,
+  out: anticounter
+}
+
+test('should wrap multiple functions safely', function (t) {
+  t.plan(9)
+
+  t.equal(counter, generator.inc, 'basic function equality testing should work')
+  t.equal(anticounter, generator.dec, 'basic function equality testing should work')
+  t.doesNotThrow(function () { generator.inc() })
+  t.doesNotThrow(function () { generator.dec() })
+  t.equal(0, outsider, 'calls have side effects')
+
+  var count = 0
+  function wrapper (original) {
+    return function () {
+      count++
+      var returned = original.apply(this, arguments)
+      count++
+      return returned
+    }
+  }
+  shimmer.massWrap(generator, ['inc', 'dec'], wrapper)
+
+  t.doesNotThrow(function () { generator.inc() })
+  t.doesNotThrow(function () { generator.dec() })
+  t.equal(4, count, 'both pre and post increments should have happened')
+  t.equal(0, outsider, 'original function has still been called')
+})
+
+test('should wrap multiple functions on multiple modules safely', function (t) {
+  t.plan(15)
+
+  t.equal(counter, arrow.in, 'basic function equality testing should work')
+  t.equal(counter, nester.in, 'basic function equality testing should work')
+  t.equal(anticounter, arrow.out, 'basic function equality testing should work')
+  t.equal(anticounter, nester.out, 'basic function equality testing should work')
+
+  t.doesNotThrow(function () { arrow.in() })
+  t.doesNotThrow(function () { nester.in() })
+  t.doesNotThrow(function () { arrow.out() })
+  t.doesNotThrow(function () { nester.out() })
+
+  t.equal(0, outsider, 'calls have side effects')
+
+  var count = 0
+  function wrapper (original) {
+    return function () {
+      count++
+      var returned = original.apply(this, arguments)
+      count++
+      return returned
+    }
+  }
+  shimmer.massWrap([arrow, nester], ['in', 'out'], wrapper)
+
+  t.doesNotThrow(function () { arrow.in() })
+  t.doesNotThrow(function () { arrow.out() })
+  t.doesNotThrow(function () { nester.in() })
+  t.doesNotThrow(function () { nester.out() })
+
+  t.equal(8, count, 'both pre and post increments should have happened')
+  t.equal(0, outsider, 'original function has still been called')
+})
+
+test('wrap called with no arguments', function (t) {
+  t.plan(2)
+
+  var mock = sinon.expectation
+    .create('logger')
+    .twice()
+  shimmer({ logger: mock })
+
+  t.doesNotThrow(function () {
+    shimmer.massWrap()
+  }, "wrapping with no arguments doesn't throw")
+
+  t.doesNotThrow(function () {
+    mock.verify()
+  }, 'logger was called with the expected message')
+})
+
+test('wrap called with module but nothing else', function (t) {
+  t.plan(2)
+
+  var mock = sinon.expectation
+    .create('logger')
+    .withExactArgs('must provide one or more functions to wrap on modules')
+    .once()
+  shimmer({ logger: mock })
+
+  t.doesNotThrow(function () {
+    shimmer.massWrap(generator)
+  }, "wrapping with only 1 argument doesn't throw")
+
+  t.doesNotThrow(function () {
+    mock.verify()
+  }, 'logger was called with the expected message')
+})
+
+test('wrap called with original but no wrapper', function (t) {
+  t.plan(2)
+
+  var mock = sinon.expectation
+    .create('logger')
+    .twice()
+  shimmer({ logger: mock })
+
+  t.doesNotThrow(function () {
+    shimmer.massWrap(generator, ['inc'])
+  }, "wrapping with only original function doesn't throw")
+
+  t.doesNotThrow(function () {
+    mock.verify()
+  }, 'logger was called with the expected message')
+})
+
+test('wrap called with non-function original', function (t) {
+  t.plan(2)
+
+  var mock = sinon.expectation
+    .create('logger')
+    .withExactArgs('must provide one or more functions to wrap on modules')
+    .once()
+  shimmer({ logger: mock })
+
+  t.doesNotThrow(function () {
+    shimmer.massWrap({ orange: 'slices' }, 'orange', function () {})
+  }, "wrapping non-function original doesn't throw")
+
+  t.doesNotThrow(function () {
+    mock.verify()
+  }, 'logger was called with the expected message')
+})
+
+test('wrap called with non-function wrapper', function (t) {
+  t.plan(2)
+
+  var mock = sinon.expectation
+    .create('logger')
+    .withArgs('must provide one or more functions to wrap on modules')
+    .once()
+  shimmer({ logger: mock })
+
+  t.doesNotThrow(function () {
+    shimmer.massWrap({ orange: function () {} }, 'orange', 'hamchunx')
+  }, "wrapping with non-function wrapper doesn't throw")
+
+  t.doesNotThrow(function () {
+    mock.verify()
+  }, 'logger was called with the expected message')
+})