store async cb cleanup

src/js/lib/Store.js

@@ -20,7 +20,6 @@ export default class Store extends EventEmitter {
   }
 
   // Register an async function callback, handle loading state.
-  // TODO: unit-test.
   cb(fn) {
     let id = _.uniqueId();
     actions.emit('system.loading', true);

test/Store.js

@@ -1,10 +1,10 @@
 import { assert } from 'chai';
 
 import Store from '../src/js/lib/Store.js';
+import actions from '../src/js/actions/appActions.js';
 
 export default {
-  Store: {
+  'store - set': (done) => {
-    set(done) {
     let s = new Store();
     
     s.set('A.B', 1);
@@ -14,7 +14,7 @@ export default {
     done();
   },
 
-    setSilent(done) {
+  'store - setSilent': (done) => {
     let s = new Store();
 
     let val;
@@ -30,7 +30,7 @@ export default {
     done();
   },
 
-    assign(done) {
+  'store - assign': (done) => {
     let s = new Store({ A: 1 });
 
     s.set({ B: 1 });
@@ -40,7 +40,7 @@ export default {
     done();
   },
 
-    changes(done) {
+  'store - changes': (done) => {
     let s = new Store({ A: { B: { C: 1 } } });
     
     let key;
@@ -52,6 +52,42 @@ export default {
     assert.equal('A.B.C', key);
 
     done();
-    }
+  },
+
+  'store - cb called': (done) => {
+    let s = new Store();
+
+    let events = [];
+    actions.on('system.loading', (val) => events.push(val));
+
+    let called = false;
+    let cb = s.cb(() => called = true);
+    assert.equal(Object.keys(s._cbs).length, 1);
+    cb();
+    assert.ok(called);
+    assert.equal(Object.keys(s._cbs).length, 0);
+    assert.deepEqual(events, [ true, false ]);
+
+    done();
+  },
+
+  'store - cb cancelled': (done) => {
+    let s = new Store();
+
+    let events = [];
+    actions.on('system.loading', (val) => events.push(val));
+
+    let called = false;
+    let cb = s.cb(() => called = true);
+    assert.equal(Object.keys(s._cbs).length, 1);
+    setTimeout(cb, 10);
+    s.clean();
+    assert.equal(Object.keys(s._cbs).length, 0);
+
+    setTimeout(() => {
+      assert.ok(!called);
+      assert.deepEqual(events, [ true, false ]);
+      done();
+    }, 20);
   }
 };