Fix bug when field errors is an empty array

CHANGELOG.md

@@ -4,6 +4,7 @@ CHANGELOG
 - **Unreleased**
   - [View Diff](https://github.com/westonganger/sexy_form.rb/compare/v0.9.0...master)
   - [#2](https://github.com/westonganger/sexy_form.rb/pulls/2) - Remove validations on field `:type` option
+  - Fix bug when field `:errors` is provided but is empty
 
 - **0.9.0** - February 15, 2019
   - Gem Initial Release

lib/sexy_form.rb

@@ -3,7 +3,7 @@
 
 ### Require all themes
 require "sexy_form/themes/base_theme"
-Dir[File.join(__dir__, "sexy_form/themes/*.rb")].each do |f| 
+Dir[File.join(__dir__, "sexy_form/themes/*.rb")].each do |f|
   require "sexy_form/themes/#{f.split("/").last}"
 end
 

lib/sexy_form/builder.rb

@@ -73,7 +73,7 @@ def field(
           end
         end
 
-        if errors.nil?
+        if errors
           html_errors = errors.map{|x|
             @theme.build_html_error(error: x, field_type: type, html_attrs: SexyForm.safe_string_hash(errors))
           }

spec/sexy_form/builder_spec.rb

@@ -34,6 +34,10 @@
       builder.field(type: "submit", name: :foobar)
     end
 
+    it "doesnt fail when errors is empty" do
+      expect(builder.field(type: :text, label: false, name: "my-great-text-input", errors: [])).to eq("<div><input type=\"text\" name=\"my-great-text-input\" id=\"my-great-text-input\"></div>")
+    end
+
     describe "input fields" do
       (TESTED_FIELD_TYPES - SexyForm::Builder::NON_INPUT_TYPES).each do |field_type|