[android] version_code must be an int

lib/confetti/templates/android_manifest.rb

@@ -28,9 +28,10 @@ def version
       def version_code
         config_version_code = @config.preference("android-versionCode", :android) || 
           @config.android_versioncode || 
-          @config.version_code
+          @config.version_code ||
+          "1"
 
-        config_version_code.nil? ? '1' : config_version_code.to_s
+        (config_version_code =~ /\A\d+\Z/) ? config_version_code.to_s : "1"
       end
 
       def app_orientation

lib/confetti/version.rb

@@ -1,3 +1,3 @@
 module Confetti
-  VERSION = "0.16.15"
+  VERSION = "0.16.16"
 end

spec/templates/android_manifest_spec.rb

@@ -207,6 +207,39 @@
     end
   end
 
+  describe "#version_code" do
+    before do
+      @config = Confetti::Config.new
+      @template = @template_class.new(@config)
+    end
+
+    it "should default to 1" do
+      @template.version_code.should == "1"
+    end
+
+    describe "when set" do
+      before do
+        @v_pref = Confetti::Config::Preference.new "android-versionCode"
+        @config.preference_set << @v_pref
+      end
+
+      it "should return that number" do
+        @v_pref.value = "12"
+        @template.version_code.should == '12'
+      end
+
+      it "should be 1 if not an integer" do
+        @v_pref.value = "12.0"
+        @template.version_code.should == "1"
+      end
+
+      it "should be 1 if not a number" do
+        @v_pref.value = "twelve"
+        @template.version_code.should == "1"
+      end
+    end
+  end
+
   describe "#max_sdk_version_attribute" do
     before do
       @config = Confetti::Config.new