Merge pull request #9 from Sam-Serpoosh/master

Ruby solution for TurnTicketDispenser problem

TDDMicroExercises.YoursSolutions/Sam-Serpoosh/code/turn_ticket_dispenser/ticket_dispenser.rb

@@ -0,0 +1,14 @@
+require_relative "./turn_number_sequence"
+require_relative "./turn_ticket"
+
+class TicketDispenser
+
+  def initialize(ticket_sequence_generator=TurnNumberSequence)
+    @ticket_sequence_generator = ticket_sequence_generator
+  end
+
+  def get_turn_ticket 
+    new_turn_number = @ticket_sequence_generator.get_next_turn_number
+    TurnTicket.new(new_turn_number)
+  end
+end

TDDMicroExercises.YoursSolutions/Sam-Serpoosh/code/turn_ticket_dispenser/turn_number_sequence.rb

@@ -0,0 +1,7 @@
+class TurnNumberSequence
+  @@current_turn_number = -1
+
+  def self.get_next_turn_number
+    @@current_turn_number += 1
+  end
+end

TDDMicroExercises.YoursSolutions/Sam-Serpoosh/code/turn_ticket_dispenser/turn_ticket.rb

@@ -0,0 +1,9 @@
+class TurnTicket
+  def initialize(turn_number)
+    @turn_number = turn_number
+  end
+
+  def turn_number 
+    @turn_number
+  end
+end

TDDMicroExercises.YoursSolutions/Sam-Serpoosh/spec/turn_ticket_dispenser_spec/ticket_dispenser_spec.rb

@@ -0,0 +1,12 @@
+require_relative "../../code/turn_ticket_dispenser/ticket_dispenser"
+
+
+describe TicketDispenser do
+  it "gets the next ticket" do
+    TurnNumberSequence.stub(:get_next_turn_number => 2)
+    ticket_dispenser = TicketDispenser.new
+
+    ticket = ticket_dispenser.get_turn_ticket
+    ticket.turn_number.should == 2
+  end
+end

TDDMicroExercises/Ruby/tire_pressure_monitoring_system/alarm.rb

@@ -0,0 +1,24 @@
+require_relative "./sensor"
+
+class Alarm
+    LOWPRESSURETHRESHOLD = 17
+    HIGHPRESSURETHRESHOLD = 21
+
+    def initialize
+      @sensor = Sensor.new 
+      @alarm_on = false
+      @alarm_count = 0
+    end
+
+    def check
+      psi_pressure_value = @sensor.pop_next_pressure_psi_value
+      if psi_pressure_value < LOWPRESSURETHRESHOLD || HIGHPRESSURETHRESHOLD < psi_pressure_value 
+          @alarm_on = true
+          @alarm_count += 1
+      end
+    end
+
+    def alarm_on 
+      return @alarm_on 
+    end
+end

TDDMicroExercises/Ruby/tire_pressure_monitoring_system/sensor.rb

@@ -0,0 +1,15 @@
+class Sensor
+    OFFSET = 16;
+
+    def pop_next_pressure_psi_value 
+      pressure_telemetry_value = sample_pressure 
+      OFFSET + pressure_telemetry_value;
+    end
+
+    def sample_pressure 
+      #placeholder implementation that 
+      #simulate a real sensor in a real tire
+      pressure_telemetry_value = 6 * rand(5) * rand(4) 
+      pressure_telemetry_value
+    end
+end

TDDMicroExercises/Ruby/turn_ticket_dispenser/ticket_dispenser.rb

@@ -0,0 +1,11 @@
+require_relative "./turn_number_sequence"
+require_relative "./turn_ticket"
+
+class TicketDispenser
+  def get_turn_ticket 
+    new_turn_number = TurnNumberSequence.get_next_turn_number
+    new_turn_ticket = TurnTicket.new(new_turn_number)
+
+    return new_turn_ticket
+  end
+end

TDDMicroExercises/Ruby/turn_ticket_dispenser/turn_number_sequence.rb

@@ -0,0 +1,7 @@
+class TurnNumberSequence
+  TURN_NUMBER = -1
+
+  def self.get_next_turn_number
+    TURN_NUMBER += 1
+  end
+end

TDDMicroExercises/Ruby/turn_ticket_dispenser/turn_ticket.rb

@@ -0,0 +1,9 @@
+class TurnTicket
+  def initialize(turn_number)
+    @turn_number = turn_number
+  end
+
+  def turn_number 
+    return @turn_number
+  end
+end