implement stubbing-finder

Author: searls

src/satisfy/find-last-stubbing-match.js

@@ -1,2 +1,10 @@
-export default function findLastStubbingMatch () {
+import _ from '../wrap/lodash'
+
+import StubbingRegister from '../value/stubbing-register'
+import argsMatch from '../args-match'
+
+export default function findLastStubbingMatch (double, call) {
+  return _.findLast(StubbingRegister.instance.get(double), (stubbing) =>
+    argsMatch(stubbing.args, call.args, stubbing.config) && stubbing.hasTimesRemaining
+  )
 }

src/value/stubbing.js

@@ -7,8 +7,9 @@ export default class Stubbing {
     this.satisfactionCount = 0
   }
 
-  get timesSatisfied () {
-    return this.satisfactionCount
+  get hasTimesRemaining () {
+    if (this.options.times == null) return true
+    return this.satisfactionCount < this.options.times
   }
 
   incrementSatisfactions () {

test/unit/satisfy/find-last-stubbing-match.test.js

@@ -0,0 +1,64 @@
+import Call from '../../../src/value/call'
+import Double from '../../../src/value/double'
+import Stubbing from '../../../src/value/stubbing'
+import StubbingRegister from '../../../src/value/stubbing-register'
+
+import subject from '../../../src/satisfy/find-last-stubbing-match'
+
+let stubbingRegister
+module.exports = {
+  beforeEach: () => {
+    stubbingRegister = StubbingRegister.instance
+  },
+  'no stubbings': () => {
+    const double = Double.create()
+    const call = new Call(this, [])
+
+    const result = subject(double, call)
+
+    assert.equal(result, null)
+  },
+  '2 stub 1 match': () => {
+    const double = Double.create()
+    const call = new Call(this, [42])
+    const stubbing1 = new Stubbing('thenBlah', [42], ['blah'])
+    const stubbing2 = new Stubbing('thenBlah', [43], ['blah'])
+    stubbingRegister.add(double, stubbing1)
+    stubbingRegister.add(double, stubbing2)
+
+    const result = subject(double, call)
+
+    assert.equal(result, stubbing1)
+  },
+  '3 stub 2 matches': () => {
+    const double = Double.create()
+    const call = new Call(this, [42])
+    const stubbing1 = new Stubbing('thenBlah', [42], ['blah'])
+    const stubbing2 = new Stubbing('thenBlah', ['pants'], ['blah'])
+    const stubbing3 = new Stubbing('thenBlah', [42], ['blah'])
+    stubbingRegister.add(double, stubbing1)
+    stubbingRegister.add(double, stubbing2)
+    stubbingRegister.add(double, stubbing3)
+
+    const result = subject(double, call)
+
+    assert.equal(result, stubbing3)
+  },
+  'stubbing has limited satisfactions': () => {
+    const double = Double.create()
+    const call = new Call(this, [42])
+    const stubbing1 = new Stubbing('thenBlah', [42], ['blah'])
+    const stubbing2 = new Stubbing('thenBlah', ['pants'], ['blah'])
+    const stubbing3 = new Stubbing('thenBlah', [42], ['blah'], {times: 2})
+    stubbingRegister.add(double, stubbing1)
+    stubbingRegister.add(double, stubbing2)
+    stubbingRegister.add(double, stubbing3)
+    stubbing3.incrementSatisfactions()
+    stubbing3.incrementSatisfactions()
+
+    const result = subject(double, call)
+
+    assert.equal(result, stubbing1)
+  }
+}
+

test/unit/value/stubbing.test.js

@@ -1,15 +1,47 @@
 import Stubbing from '../../../src/value/stubbing'
 
 module.exports = {
-  'increments timesSatisfied (used for satisfaction-limits)': () => {
-    const subject = new Stubbing()
+  '.hasTimesRemaining': {
+    'no option set': () => {
+      const subject = new Stubbing()
 
-    assert.equal(subject.timesSatisfied, 0)
+      assert.equal(subject.hasTimesRemaining, true)
 
-    subject.incrementSatisfactions()
-    assert.equal(subject.timesSatisfied, 1)
+      subject.incrementSatisfactions()
+
+      assert.equal(subject.hasTimesRemaining, true)
+    },
+    'times set to 0': () => {
+      const subject = new Stubbing(null, null, null, {times: 0})
+
+      assert.equal(subject.hasTimesRemaining, false)
+
+      subject.incrementSatisfactions()
+
+      assert.equal(subject.hasTimesRemaining, false)
+    },
+    'times set to 1': () => {
+      const subject = new Stubbing(null, null, null, {times: 1})
+
+      assert.equal(subject.hasTimesRemaining, true)
+
+      subject.incrementSatisfactions()
+
+      assert.equal(subject.hasTimesRemaining, false)
+    },
+    'times set to 2': () => {
+      const subject = new Stubbing(null, null, null, {times: 2})
+
+      assert.equal(subject.hasTimesRemaining, true)
+
+      subject.incrementSatisfactions()
+
+      assert.equal(subject.hasTimesRemaining, true)
+
+      subject.incrementSatisfactions()
+
+      assert.equal(subject.hasTimesRemaining, false)
+    }
 
-    subject.incrementSatisfactions()
-    assert.equal(subject.timesSatisfied, 2)
   }
 }