validates input_options based on input type

test/validators/input_options_presence_validator_test.rb

@@ -0,0 +1,49 @@
+require 'test_helper'
+
+class InputOptionsPresenceValidatorTest < ActiveSupport::TestCase
+  test "should pass when inpute type not radio or checkbox" do
+    obj = InputOptionsValidatable.new
+    obj.input_type = "text"
+
+    assert obj.valid?
+    assert_equal 0, obj.errors.messages[:input_options].count
+  end
+
+  test "should fail when missing options for radio" do
+    obj = InputOptionsValidatable.new
+    obj.input_type = "radio"
+    obj.input_options = nil
+    obj.valid?
+
+    refute obj.errors.messages.empty?, 'needs an error message'
+    assert_match(/provide.*option/i, obj.errors.messages[:input_options].join)
+  end
+
+  test "should pass when provided options for radio" do
+    obj = InputOptionsValidatable.new
+    obj.input_type = "radio"
+    obj.input_options = ['one', 'two', nil]
+
+    assert obj.valid?
+    assert_equal 0, obj.errors.messages[:input_options].count
+  end
+
+  test "should fail when missing options for checkbox" do
+    obj = InputOptionsValidatable.new
+    obj.input_type = "checkbox"
+    obj.input_options = nil
+    obj.valid?
+
+    refute obj.errors.messages.empty?, 'needs an error message'
+    assert_match(/provide.*option/i, obj.errors.messages[:input_options].join)
+  end
+
+  test "should pass when provided options for checkbox" do
+    obj = InputOptionsValidatable.new
+    obj.input_type = "checkbox"
+    obj.input_options = ['one', 'two', nil]
+
+    assert obj.valid?
+    assert_equal 0, obj.errors.messages[:input_options].count
+  end
+end