Add a quick unit test

package.json

@@ -4,7 +4,7 @@
   "description": "Native System V message queues in Node.js",
   "main": "index.js",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1",
+    "test": "jasmine spec/**/*.js",
     "install": "node-gyp rebuild"
   },
   "repository": {
@@ -30,5 +30,8 @@
   "homepage": "https://github.com/jhead/node-svmq#readme",
   "dependencies": {
     "nan": "^2.2.0"
+  },
+  "devDependencies": {
+    "jasmine": "^3.6.1"
   }
 }

spec/queueSpec.js

@@ -0,0 +1,32 @@
+const MessageQueue = require('../');
+
+const inputs = [
+  Buffer.alloc(0),
+  Buffer.from(""),
+  Buffer.from("test"),
+  Buffer.from("test 1234 foo bar 567890"),
+  Buffer.from([1, 2, 3, 4]),
+  Buffer.from(new Uint8Array([1, 2, 3, 4, 5, 6, 7, 8])),
+  Buffer.alloc(1024)
+];
+
+describe("MessageQueue", function () {
+
+  // Test a batch of diverse inputs that should be supported
+  inputs.forEach((input, index) =>{
+    const msgType = index + 1;
+    const selectedInput = input;
+
+    it("push and pop a message: " + selectedInput, function (done) {
+      const queue = new MessageQueue(31337);
+
+      queue.push(selectedInput, { type: msgType })
+      queue.pop({ type: msgType }, function(err, msg) {
+        expect(err).toBeNull();
+        expect(msg).toEqual(selectedInput);
+        done();
+      })
+    });
+  })
+
+});

spec/support/jasmine.json

@@ -0,0 +1,11 @@
+{
+  "spec_dir": "spec",
+  "spec_files": [
+    "**/*[sS]pec.js"
+  ],
+  "helpers": [
+    "helpers/**/*.js"
+  ],
+  "stopSpecOnExpectationFailure": false,
+  "random": true
+}