Better no board instance verify message

Author: Alan Shaw

exercises/blink_blink/exercise.js

@@ -38,10 +38,7 @@ exercise.addVerifyProcessor(function (callback) {
   try {
     var io = five.stubs.firmata.singleton
 
-    if (!io) {
-      // yikes, board was never created
-      return callback(null, false)
-    }
+    expect(io, 'no board instance created').to.exist
 
     var led = five.Led.instances[0]
 

exercises/fire_alarm/exercise.js

@@ -45,10 +45,7 @@ exercise.addVerifyProcessor(function (callback) {
   try {
     var io = five.stubs.firmata.singleton
 
-    if (!io) {
-      // yikes, board was never created
-      return callback(null, false)
-    }
+    expect(io, 'no board instance created').to.exist
 
     // Get the listener that is listening for reads on pin A0
     var analogReadListener = null

exercises/light_switch/exercise.js

@@ -49,10 +49,7 @@ exercise.addVerifyProcessor(function (callback) {
   try {
     var io = five.stubs.firmata.singleton
 
-    if (!io) {
-      // yikes, board was never created
-      return callback(null, false)
-    }
+    expect(io, 'no board instance created').to.exist
 
     var btn = five.Button.instances[0]
     var led = five.Led.instances[0]

exercises/ping_bell/exercise.js

@@ -39,10 +39,7 @@ exercise.addVerifyProcessor(function (callback) {
   try {
     var io = five.stubs.firmata.singleton
 
-    if (!io) {
-      // yikes, board was never created
-      return callback(null, false)
-    }
+    expect(io, 'no board instance created').to.exist
 
     var piezo = five.Piezo.instances[0]
 

exercises/remote_temperature/exercise.js

@@ -40,10 +40,7 @@ exercise.addVerifyProcessor(function (callback) {
   try {
     var io = five.stubs.firmata.singleton
 
-    if (!io) {
-      // yikes, board was never created
-      return callback(null, false)
-    }
+    expect(io, 'no board instance created').to.exist
 
     // Get the listener that is listening for reads on pin A0
     var analogReadListener = null

exercises/robot_arm/exercise.js

@@ -39,10 +39,7 @@ exercise.addVerifyProcessor(function (callback) {
   try {
     var io = five.stubs.firmata.singleton
 
-    if (!io) {
-      // yikes, board was never created
-      return callback(null, false)
-    }
+    expect(io, 'no board instance created').to.exist
 
     var sensor = five.Sensor.instances[0]
     var servo = five.Servo.instances[0]

exercises/servo_wave/exercise.js

@@ -38,10 +38,7 @@ exercise.addVerifyProcessor(function (callback) {
   try {
     var io = five.stubs.firmata.singleton
 
-    if (!io) {
-      // yikes, board was never created
-      return callback(null, false)
-    }
+    expect(io, 'no board instance created').to.exist
 
     var board = five.Board.instances[0]
     var servo = five.Servo.instances[0]

exercises/spin_motor_spin/exercise.js

@@ -38,10 +38,7 @@ exercise.addVerifyProcessor(function (callback) {
   try {
     var io = five.stubs.firmata.singleton
 
-    if (!io) {
-      // yikes, board was never created
-      return callback(null, false)
-    }
+    expect(io, 'no board instance created').to.exist
 
     var board = five.Board.instances[0]
     var motor = five.Motor.instances[0]

exercises/street_lamp/exercise.js

@@ -38,10 +38,7 @@ exercise.addVerifyProcessor(function (callback) {
   try {
     var io = five.stubs.firmata.singleton
 
-    if (!io) {
-      // yikes, board was never created
-      return callback(null, false)
-    }
+    expect(io, 'no board instance created').to.exist
 
     // Get the listener that is listening for reads on pin A0
     var analogReadListener = null