Fill out conversions

lib/semiformal/array_value.rb

@@ -13,6 +13,10 @@ def to_a
       @array_value
     end
 
+    def to_i
+      0
+    end
+
     def set(new_value)
       self.class.new(new_value)
     end

lib/semiformal/integer_value.rb

@@ -13,6 +13,10 @@ def to_i
       @integer_value
     end
 
+    def to_a
+      [@integer_value.to_s]
+    end
+
     def convert
       @integer_value
     end

lib/semiformal/text_value.rb

@@ -6,7 +6,15 @@ def initialize(raw_value)
     end
 
     def to_s
-      convert
+      @string_value
+    end
+
+    def to_i
+      @string_value.to_i
+    end
+
+    def to_a
+      @string_value.split(",").map(&:strip)
     end
 
     def convert

spec/semiformal/array_value_spec.rb

@@ -10,6 +10,10 @@
     Semiformal::ArrayValue.new(1..2).to_a.should == [1, 2]
   end
 
+  it "converts #to_i" do
+    Semiformal::ArrayValue.new(1..2).to_i.should == 0
+  end
+
   it "can #set a value" do
     Semiformal::ArrayValue.new([1]).set([2]).to_s.should == "2"
   end

spec/semiformal/integer_value_spec.rb

@@ -10,6 +10,10 @@
     Semiformal::IntegerValue.new("52").to_i.should == 52
   end
 
+  it "converts #to_a" do
+    Semiformal::IntegerValue.new(52).to_a.should == %w(52)
+  end
+
   it "can #set a value" do
     Semiformal::IntegerValue.new("52").set("38").to_s.should == "38"
   end

spec/semiformal/text_value_spec.rb

@@ -3,8 +3,15 @@
 
 describe Semiformal::TextValue do
   it "converts #to_s" do
-    value = Semiformal::TextValue.new(:value)
-    value.to_s.should == "value"
+    Semiformal::TextValue.new(:value).to_s.should == "value"
+  end
+
+  it "converts #to_i" do
+    Semiformal::TextValue.new("15").to_i.should == 15
+  end
+
+  it "converts #to_a" do
+    Semiformal::TextValue.new("One,  two,three").to_a.should == %w(One two three)
   end
 
   it "can #set a value" do