1 files changed, 16 insertions, 0 deletions
diff --git a/test/workbook/worksheet/tc_icon_set.rb b/test/workbook/worksheet/tc_icon_set.rb
index beb69919..b2ced29b 100644
--- a/test/workbook/worksheet/tc_icon_set.rb
+++ b/test/workbook/worksheet/tc_icon_set.rb
@@ -12,6 +12,7 @@ class TestIconSet < Test::Unit::TestCase
     assert(@icon_set.percent)
     refute(@icon_set.reverse)
     assert(@icon_set.showValue)
+    assert_equal([0, 33, 67], @icon_set.interpolationPoints)
   end
 
   def test_icon_set
@@ -20,6 +21,12 @@ class TestIconSet < Test::Unit::TestCase
     assert_equal("5Rating", @icon_set.iconSet)
   end
 
+  def test_interpolation_points
+    assert_raise(ArgumentError) { @icon_set.interpolationPoints = ["invalid_value"] }
+    assert_nothing_raised { @icon_set.interpolationPoints = [0, 60, 80] }
+    assert_equal([0, 60, 80], @icon_set.interpolationPoints)
+  end
+
   def test_percent
     assert_raise(ArgumentError) { @icon_set.percent = :invalid_type }
     assert_nothing_raised { @icon_set.percent = false }
@@ -44,4 +51,13 @@ class TestIconSet < Test::Unit::TestCase
     assert_equal(1, doc.xpath(".//iconSet[@iconSet='3TrafficLights1'][@percent=1][@reverse=0][@showValue=1]").size)
     assert_equal(3, doc.xpath(".//iconSet//cfvo").size)
   end
+
+  def test_to_xml_string_with_interpolation_points
+    @icon_set.iconSet = '5Arrows'
+    @icon_set.interpolationPoints = [0, 20, 40, 60, 80]
+    doc = Nokogiri::XML.parse(@icon_set.to_xml_string)
+
+    assert_equal(1, doc.xpath(".//iconSet[@iconSet='5Arrows'][@percent=1][@reverse=0][@showValue=1]").size)
+    assert_equal(5, doc.xpath(".//iconSet//cfvo").size)
+  end
 end