diff --git a/platforms/gpio/analog_sensor_driver_test.go b/platforms/gpio/analog_sensor_driver_test.go
index d17c9df4..5a27a139 100644
--- a/platforms/gpio/analog_sensor_driver_test.go
+++ b/platforms/gpio/analog_sensor_driver_test.go
@@ -1,8 +1,9 @@
 package gpio
 
 import (
-	"github.com/hybridgroup/gobot"
 	"testing"
+
+	"github.com/hybridgroup/gobot"
 )
 
 func initTestAnalogSensorDriver() *AnalogSensorDriver {
@@ -19,11 +20,6 @@ func TestAnalogSensorDriverHalt(t *testing.T) {
 	gobot.Assert(t, d.Halt(), true)
 }
 
-func TestAnalogSensorDriverInit(t *testing.T) {
-	d := initTestAnalogSensorDriver()
-	gobot.Assert(t, d.Init(), true)
-}
-
 func TestAnalogSensorDriverRead(t *testing.T) {
 	d := initTestAnalogSensorDriver()
 	gobot.Assert(t, d.Read(), 99)
diff --git a/platforms/gpio/button_driver_test.go b/platforms/gpio/button_driver_test.go
index a6ebc52c..86b090d7 100644
--- a/platforms/gpio/button_driver_test.go
+++ b/platforms/gpio/button_driver_test.go
@@ -1,8 +1,9 @@
 package gpio
 
 import (
-	"github.com/hybridgroup/gobot"
 	"testing"
+
+	"github.com/hybridgroup/gobot"
 )
 
 func initTestButtonDriver() *ButtonDriver {
@@ -19,11 +20,6 @@ func TestButtonDriverHalt(t *testing.T) {
 	gobot.Assert(t, d.Halt(), true)
 }
 
-func TestButtonDriverInit(t *testing.T) {
-	d := initTestButtonDriver()
-	gobot.Assert(t, d.Init(), true)
-}
-
 func TestButtonDriverReadState(t *testing.T) {
 	d := initTestButtonDriver()
 	gobot.Assert(t, d.readState(), 1)
diff --git a/platforms/gpio/direct_pin_driver_test.go b/platforms/gpio/direct_pin_driver_test.go
index 17e6de33..96e7d012 100644
--- a/platforms/gpio/direct_pin_driver_test.go
+++ b/platforms/gpio/direct_pin_driver_test.go
@@ -1,8 +1,9 @@
 package gpio
 
 import (
-	"github.com/hybridgroup/gobot"
 	"testing"
+
+	"github.com/hybridgroup/gobot"
 )
 
 func initTestDirectPinDriver() *DirectPinDriver {
@@ -19,11 +20,6 @@ func TestDirectPinDriverHalt(t *testing.T) {
 	gobot.Assert(t, d.Halt(), true)
 }
 
-func TestDirectPinDriverInit(t *testing.T) {
-	d := initTestDirectPinDriver()
-	gobot.Assert(t, d.Init(), true)
-}
-
 func TestDirectPinDriverDigitalRead(t *testing.T) {
 	d := initTestDirectPinDriver()
 	gobot.Assert(t, d.DigitalRead(), 1)
diff --git a/platforms/gpio/led_driver_test.go b/platforms/gpio/led_driver_test.go
index 4c8b8c76..9289e075 100644
--- a/platforms/gpio/led_driver_test.go
+++ b/platforms/gpio/led_driver_test.go
@@ -20,30 +20,25 @@ func TestLedDriverHalt(t *testing.T) {
 	gobot.Assert(t, d.Halt(), true)
 }
 
-func TestLedDriverInit(t *testing.T) {
-	d := initTestLedDriver()
-	gobot.Assert(t, d.Init(), true)
-}
-
 func TestLedDriverOn(t *testing.T) {
 	d := initTestLedDriver()
 	gobot.Assert(t, d.On(), true)
-	gobot.Assert(t, d.IsOn(), true)
+	gobot.Assert(t, d.State(), true)
 }
 
 func TestLedDriverOff(t *testing.T) {
 	d := initTestLedDriver()
 	gobot.Assert(t, d.Off(), true)
-	gobot.Assert(t, d.IsOff(), true)
+	gobot.Assert(t, d.State(), false)
 }
 
 func TestLedDriverToggle(t *testing.T) {
 	d := initTestLedDriver()
 	d.Off()
 	d.Toggle()
-	gobot.Assert(t, d.IsOn(), true)
+	gobot.Assert(t, d.State(), true)
 	d.Toggle()
-	gobot.Assert(t, d.IsOff(), true)
+	gobot.Assert(t, d.State(), false)
 }
 
 func TestLedDriverBrightness(t *testing.T) {
diff --git a/platforms/gpio/motor_driver_test.go b/platforms/gpio/motor_driver_test.go
index 5ffee99d..18f4e14f 100644
--- a/platforms/gpio/motor_driver_test.go
+++ b/platforms/gpio/motor_driver_test.go
@@ -1,8 +1,9 @@
 package gpio
 
 import (
-	"github.com/hybridgroup/gobot"
 	"testing"
+
+	"github.com/hybridgroup/gobot"
 )
 
 func initTestMotorDriver() *MotorDriver {
@@ -19,11 +20,6 @@ func TestMotorDriverHalt(t *testing.T) {
 	gobot.Assert(t, d.Halt(), true)
 }
 
-func TestMotorDriverInit(t *testing.T) {
-	d := initTestMotorDriver()
-	gobot.Assert(t, d.Init(), true)
-}
-
 func TestMotorDriverIsOn(t *testing.T) {
 	d := initTestMotorDriver()
 	d.CurrentMode = "digital"
diff --git a/platforms/gpio/servo_driver_test.go b/platforms/gpio/servo_driver_test.go
index 27e52b4f..a92fe79c 100644
--- a/platforms/gpio/servo_driver_test.go
+++ b/platforms/gpio/servo_driver_test.go
@@ -1,8 +1,9 @@
 package gpio
 
 import (
-	"github.com/hybridgroup/gobot"
 	"testing"
+
+	"github.com/hybridgroup/gobot"
 )
 
 func initTestServoDriver() *ServoDriver {
@@ -19,11 +20,6 @@ func TestServoDriverHalt(t *testing.T) {
 	gobot.Assert(t, d.Halt(), true)
 }
 
-func TestServoDriverInit(t *testing.T) {
-	d := initTestServoDriver()
-	gobot.Assert(t, d.Init(), true)
-}
-
 func TestServoDriverMove(t *testing.T) {
 	d := initTestServoDriver()
 	d.Move(100)