1 files changed, 49 insertions, 0 deletions
diff --git a/mocha_test/queue.js b/mocha_test/queue.js
new file mode 100644
index 0000000..fab423a
--- /dev/null
+++ b/mocha_test/queue.js
@@ -0,0 +1,49 @@
+var async = require('../lib');
+var expect = require('chai').expect;
+
+
+describe('queue', function(){
+    context('q.unsaturated(): ',function() {
+        it('should have a default buffer property that equals 25% of the concurrenct rate', function(done){
+            var q = async.queue(function(task, cb) {
+                // nop
+                calls.push('process ' + task);
+                async.setImmediate(cb);
+            }, 10);
+            expect(q.buffer).to.equal(2.5);
+            done();
+        });
+        it('should allow a user to change the buffer property', function(done){
+            var q = async.queue(function(task, cb) {
+                // nop
+                calls.push('process ' + task);
+                async.setImmediate(cb);
+            }, 10);
+            q.buffer = 4;
+            expect(q.buffer).to.not.equal(2.5);
+            expect(q.buffer).to.equal(4);
+            done();
+        });
+        it('should call the unsaturated callback if tasks length is less than concurrency minus buffer', function(done){
+            var calls = [];
+            var q = async.queue(function(task, cb) {
+                // nop
+                calls.push('process ' + task);
+                async.setImmediate(cb);
+            }, 10);
+            q.unsaturated = function() {
+                calls.push('unsaturated');
+            };
+            q.empty = function() {
+                expect(calls.indexOf('unsaturated')).to.be.above(-1);
+                done();
+            };
+            q.push('foo0', function () {calls.push('foo0 cb');});
+            q.push('foo1', function () {calls.push('foo1 cb');});
+            q.push('foo2', function () {calls.push('foo2 cb');});
+            q.push('foo3', function () {calls.push('foo3 cb');});
+            q.push('foo4', function () {calls.push('foo4 cb');});
+        });
+    });
+});
+