Add Brush model

app/models/brush.rb

@@ -0,0 +1,27 @@
+class Brush
+  attr_reader :attributes
+
+  def initialize(attributes = {})
+    @attributes = attributes
+  end
+
+  def fg
+    attributes[:fg]
+  end
+
+  def bg
+    attributes[:bg]
+  end
+
+  def bold?
+    !!attributes[:bold]
+  end
+
+  def underline?
+    !!attributes[:underline]
+  end
+
+  def inverse?
+    !!attributes[:inverse]
+  end
+end

spec/models/brush_spec.rb

@@ -0,0 +1,104 @@
+require 'spec_helper'
+
+describe Brush do
+  let(:brush) { Brush.new(attributes) }
+
+  describe '#fg' do
+    subject { brush.fg }
+
+    context "when fg was set" do
+      let(:attributes) { { :fg => 1 } }
+
+      it { should eq(1) }
+    end
+
+    context "when fg was not set" do
+      let(:attributes) { {} }
+
+      it { should be(nil) }
+    end
+  end
+
+  describe '#bg' do
+    subject { brush.bg }
+
+    context "when bg was set" do
+      let(:attributes) { { :bg => 2 } }
+
+      it { should eq(2) }
+    end
+
+    context "when bg was not set" do
+      let(:attributes) { {} }
+
+      it { should be(nil) }
+    end
+  end
+
+  describe '#bold?' do
+    subject { brush.bold? }
+
+    context "when bold was set to true" do
+      let(:attributes) { { :bold => true } }
+
+      it { should be(true) }
+    end
+
+    context "when bold was set to false" do
+      let(:attributes) { { :bold => false } }
+
+      it { should be(false) }
+    end
+
+    context "when bold was not set" do
+      let(:attributes) { {} }
+
+      it { should be(false) }
+    end
+  end
+
+  describe '#underline?' do
+    subject { brush.underline? }
+
+    context "when underline was set to true" do
+      let(:attributes) { { :underline => true } }
+
+      it { should be(true) }
+    end
+
+    context "when underline was set to false" do
+      let(:attributes) { { :underline => false } }
+
+      it { should be(false) }
+    end
+
+    context "when underline was not set" do
+      let(:attributes) { {} }
+
+      it { should be(false) }
+    end
+  end
+
+  describe '#inverse?' do
+    subject { brush.inverse? }
+
+    context "when inverse was set to true" do
+      let(:attributes) { { :inverse => true } }
+
+      it { should be(true) }
+    end
+
+    context "when inverse was set to false" do
+      let(:attributes) { { :inverse => false } }
+
+      it { should be(false) }
+    end
+
+    context "when inverse was not set" do
+      let(:attributes) { {} }
+
+      it { should be(false) }
+    end
+  end
+
+end