Whenever adding something to a queue, include a timeout

No more wedged queues!

FREEBIE

libtextsecure/test/task_with_timeout_test.js

@@ -0,0 +1,60 @@
+'use strict';
+
+describe('createTaskWithTimeout', function() {
+    it('resolves when promise resolves', function() {
+        var task = function() {
+            return Promise.resolve('hi!');
+        };
+        var taskWithTimeout = textsecure.createTaskWithTimeout(task);
+
+        return taskWithTimeout().then(function(result) {
+            assert.strictEqual(result, 'hi!')
+        });
+    });
+    it('flows error from promise back', function() {
+        var error = new Error('original');
+        var task = function() {
+            return Promise.reject(error);
+        };
+        var taskWithTimeout = textsecure.createTaskWithTimeout(task);
+
+        return taskWithTimeout().catch(function(flowedError) {
+            assert.strictEqual(error, flowedError);
+        });
+    });
+    it('rejects if promise takes too long', function() {
+        var error = new Error('original');
+        var complete = false;
+        var task = function() {
+            return new Promise(function(resolve) {
+                setTimeout(function() {
+                    completed = true;
+                    resolve();
+                }, 3000);
+            });
+        };
+        var taskWithTimeout = textsecure.createTaskWithTimeout(task, this.name, {
+            timeout: 10
+        });
+
+        return taskWithTimeout().then(function() {
+            throw new Error('it was not supposed to resolve!');
+        }, function() {
+            assert.strictEqual(complete, false);
+        });
+    });
+    it('resolves if task returns something falsey', function() {
+        var task = function() {};
+        var taskWithTimeout = textsecure.createTaskWithTimeout(task);
+        return taskWithTimeout();
+    });
+    it('resolves if task returns a non-promise', function() {
+        var task = function() {
+            return 'hi!';
+        };
+        var taskWithTimeout = textsecure.createTaskWithTimeout(task);
+        return taskWithTimeout().then(function(result) {
+            assert.strictEqual(result, 'hi!')
+        });
+    });
+});