Add cleanup pin calling on disconnect

Bump version to v0.2.1

Gemfile.lock

@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    stepper_rpi (0.1.0)
+    stepper_rpi (0.2.1)
 
 GEM
   remote: https://rubygems.org/
@@ -12,6 +12,7 @@ GEM
 
 PLATFORMS
   x86_64-darwin-20
+  x86_64-linux
 
 DEPENDENCIES
   minitest (~> 5.0)

examples/simple.rb

@@ -1,4 +1,4 @@
-# https://github.com/theovidal/raspi-gpio-rb
+# https://github.com/sergio1990/raspi-gpio-rb
 require 'raspi-gpio'
 
 $LOAD_PATH.unshift File.expand_path("../lib", __dir__)
@@ -10,18 +10,22 @@ def initialize
   end
 
   def setup_pin(pin)
-    gpio_pin = GPIO.new(pin, OUT)
+    gpio_pin = GPIO.new(pin, GPIO::OUT)
     # Give some time for the system to create needed files
     # and set proper permissions
     sleep(0.5)
-    gpio_pin.set_mode(OUT)
+    gpio_pin.mode = GPIO::OUT
     @pins[pin] = gpio_pin
   end
 
+  def cleanup_pin(pin)
+    @pins[pin].cleanup
+  end
+
   def set_pin_value(pin, value)
     gpio_pin = @pins[pin]
-    gpio_value = value == 1 ? HIGH : LOW
-    gpio_pin.set_value(gpio_value)
+    gpio_value = value == 1 ? GPIO::HIGH : GPIO::LOW
+    gpio_pin.value = gpio_value
   end
 end
 

lib/stepper_rpi/drivers/uln2003.rb

@@ -23,6 +23,7 @@ def connect
       end
 
       def disconnect
+        pins.each { gpio_adapter.cleanup_pin(_1) }
       end
 
       def step(dir:)

lib/stepper_rpi/gpio_adapter.rb

@@ -4,6 +4,10 @@ def setup_pin(pin)
       raise NotImplementedError
     end
 
+    def cleanup_pin(pin)
+      raise NotImplementedError
+    end
+
     def set_pin_value(pin, value)
       raise NotImplementedError
     end

lib/stepper_rpi/version.rb

@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module StepperRpi
-  VERSION = "0.2.0"
+  VERSION = "0.2.1"
 end

test/test_stepper_rpi_motor.rb

@@ -19,5 +19,11 @@ def test_do_steps_successfully
     assert motor.is_connected
     refute motor.is_running
     assert_equal 1, motor.position
+
+    driver.expects(:disconnect).once
+
+    motor.disconnect
+
+    refute motor.is_connected
   end
 end