Init commitHEADmaster

10 files changed, 217 insertions, 0 deletions

diff --git a/.ruby-version b/.ruby-version
new file mode 100644
index 0000000..743af5e
--- /dev/null
+++ b/.ruby-version
@@ -0,0 +1 @@
+2.6.8
diff --git a/Gemfile b/Gemfile
new file mode 100644
index 0000000..4b02bbe
--- /dev/null
+++ b/Gemfile
@@ -0,0 +1,14 @@
+# frozen_string_literal: true
+
+source "https://rubygems.org"
+
+git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }
+
+# gem "rails"
+
+gem "rspec", "~> 3.10"
+gem "sinatra", "~> 2.1"
+gem 'pry'
+gem 'rack-test'
+
+gem "capybara", "~> 3.35"
diff --git a/Gemfile.lock b/Gemfile.lock
new file mode 100644
index 0000000..3529798
--- /dev/null
+++ b/Gemfile.lock
@@ -0,0 +1,71 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    addressable (2.8.0)
+      public_suffix (>= 2.0.2, < 5.0)
+    capybara (3.36.0)
+      addressable
+      matrix
+      mini_mime (>= 0.1.3)
+      nokogiri (~> 1.8)
+      rack (>= 1.6.0)
+      rack-test (>= 0.6.3)
+      regexp_parser (>= 1.5, < 3.0)
+      xpath (~> 3.2)
+    coderay (1.1.3)
+    diff-lcs (1.4.4)
+    matrix (0.4.2)
+    method_source (1.0.0)
+    mini_mime (1.1.2)
+    mini_portile2 (2.6.1)
+    mustermann (1.1.1)
+      ruby2_keywords (~> 0.0.1)
+    nokogiri (1.12.5)
+      mini_portile2 (~> 2.6.1)
+      racc (~> 1.4)
+    pry (0.14.1)
+      coderay (~> 1.1)
+      method_source (~> 1.0)
+    public_suffix (4.0.6)
+    racc (1.6.0)
+    rack (2.2.3)
+    rack-protection (2.1.0)
+      rack
+    rack-test (1.1.0)
+      rack (>= 1.0, < 3)
+    regexp_parser (2.1.1)
+    rspec (3.10.0)
+      rspec-core (~> 3.10.0)
+      rspec-expectations (~> 3.10.0)
+      rspec-mocks (~> 3.10.0)
+    rspec-core (3.10.1)
+      rspec-support (~> 3.10.0)
+    rspec-expectations (3.10.1)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.10.0)
+    rspec-mocks (3.10.2)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.10.0)
+    rspec-support (3.10.2)
+    ruby2_keywords (0.0.5)
+    sinatra (2.1.0)
+      mustermann (~> 1.0)
+      rack (~> 2.2)
+      rack-protection (= 2.1.0)
+      tilt (~> 2.0)
+    tilt (2.0.10)
+    xpath (3.2.0)
+      nokogiri (~> 1.8)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  capybara (~> 3.35)
+  pry
+  rack-test
+  rspec (~> 3.10)
+  sinatra (~> 2.1)
+
+BUNDLED WITH
+   1.17.2
diff --git a/app.rb b/app.rb
new file mode 100644
index 0000000..6d5cd74
--- /dev/null
+++ b/app.rb
@@ -0,0 +1,13 @@
+require 'sinatra'
+require './gpio'
+
+gpio = Gpio.new(1)
+
+get '/' do
+  "Lightswitch <form method='POST' action='/'><input type='submit' value='#{gpio.value ? 'Off' : 'On'}'></form>"
+end
+
+post '/' do
+  gpio.toggle
+  redirect '/'
+end
diff --git a/gpio.rb b/gpio.rb
new file mode 100644
index 0000000..e7ad10e
--- /dev/null
+++ b/gpio.rb
@@ -0,0 +1,25 @@
+class Gpio
+  def initialize(pin, prefix: "/sys/class/gpio")
+    @pin = pin
+    @prefix = prefix
+  end
+
+  attr_reader :pin, :prefix
+
+  def export
+    File.write("#{prefix}/export", pin)
+    File.write("#{prefix}/gpio#{pin}/direction", "out")
+  end
+
+  def value
+    File.read("#{prefix}/gpio#{pin}/value").strip == "1" ? true : false
+  end
+
+  def value=(value)
+    File.write("#{prefix}/gpio#{pin}/value", value ? "1" : "0")
+  end
+
+  def toggle
+    self.value = !value
+  end
+end
diff --git a/spec/app_spec.rb b/spec/app_spec.rb
new file mode 100644
index 0000000..151d690
--- /dev/null
+++ b/spec/app_spec.rb
@@ -0,0 +1,11 @@
+require './spec/spec_helper'
+
+RSpec.describe "App feature spec" do
+  it "renders text" do
+    visit "/"
+    expect(page).to have_content("Lightswitch")
+    expect(page).to have_button("On")
+    click_button "On"
+    expect(page).to have_button("Off")
+  end
+end
diff --git a/spec/fixtures/gpio1/direction b/spec/fixtures/gpio1/direction
new file mode 100644
index 0000000..c585e19
--- /dev/null
+++ b/spec/fixtures/gpio1/direction
@@ -0,0 +1 @@
+out
\ No newline at end of file
diff --git a/spec/fixtures/gpio1/value b/spec/fixtures/gpio1/value
new file mode 100644
index 0000000..56a6051
--- /dev/null
+++ b/spec/fixtures/gpio1/value
@@ -0,0 +1 @@
+1
\ No newline at end of file
diff --git a/spec/gpio_spec.rb b/spec/gpio_spec.rb
new file mode 100644
index 0000000..48dd8ec
--- /dev/null
+++ b/spec/gpio_spec.rb
@@ -0,0 +1,61 @@
+require 'fileutils'
+require './spec/spec_helper'
+require './gpio'
+
+RSpec.describe Gpio do
+  let(:gpio) { described_class.new(1, prefix: "./spec/fixtures") }
+
+  before do
+    gpio.value = false
+  end
+
+  describe "#export" do
+    subject { gpio.export }
+
+    before do
+      FileUtils.touch("./spec/fixtures/export")
+    end
+
+    after do
+      FileUtils.remove("./spec/fixtures/export")
+    end
+
+    it "writes the pin to the export file" do
+      subject
+      export_file = File.read("./spec/fixtures/export")
+      expect(export_file).to eq("1")
+    end
+
+    it "sets the pin as an output" do
+      subject
+      direction_file = File.read("./spec/fixtures/gpio1/direction")
+      expect(direction_file).to eq("out")
+    end
+  end
+
+  describe "#toggle" do
+    subject { gpio.toggle }
+
+    it "toggles the value to true" do
+      expect { subject }.to change { gpio.value }.from(false).to(true)
+    end
+  end
+
+  describe "#value" do
+    subject { gpio.value }
+
+    it "returns false" do
+      expect(subject).to be_falsey
+    end
+
+    context "value is set to true" do
+      before do
+        gpio.value = true
+      end
+
+      it "returns true" do
+        expect(subject).to be_truthy
+      end
+    end
+  end
+end
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
new file mode 100644
index 0000000..8dc19c8
--- /dev/null
+++ b/spec/spec_helper.rb
@@ -0,0 +1,19 @@
+require './app.rb'
+require 'rspec'
+require 'rack/test'
+require 'capybara/rspec'
+
+ENV['RACK_ENV'] = 'test'
+
+module RSpecMixin
+  include Rack::Test::Methods
+  def app
+    Sinatra::Application
+  end
+  Capybara.app = Sinatra::Application.new
+end
+
+RSpec.configure do |config|
+  config.include RSpecMixin
+  config.include Capybara::DSL
+end