2 files changed, 45 insertions, 2 deletions
diff --git a/test/workbook/tc_defined_name.rb b/test/workbook/tc_defined_name.rb
new file mode 100644
index 00000000..51f5a484
--- /dev/null
+++ b/test/workbook/tc_defined_name.rb
@@ -0,0 +1,41 @@
+require 'tc_helper'
+
+class TestDefinedNames < Test::Unit::TestCase
+  def setup 
+    @dn = Axlsx::DefinedName.new('Sheet1!A1:A1')
+  end
+
+  def test_initialize
+    assert_equal('Sheet1!A1:A1', @dn.formula)
+  end
+  
+  def test_string_attributes
+    Axlsx::DefinedName::STRING_ATTRIBUTES.each do |attr|
+      assert_raise(ArgumentError, 'only strings allowed in string attributes') { @dn.send("#{attr}=", 1) }
+      assert_nothing_raised { @dn.send("#{attr}=", '_xlnm.Sheet_Title') }
+    end
+  end
+
+  def test_boolean_attributes
+   Axlsx::DefinedName::BOOLEAN_ATTRIBUTES.each do |attr|
+      assert_raise(ArgumentError, 'only booleanish allowed in string attributes') { @dn.send("#{attr}=", 'foo') }
+      assert_nothing_raised { @dn.send("#{attr}=", 1) }
+    end
+
+  end
+
+  def test_local_sheet_id
+    assert_raise(ArgumentError, 'local_sheet_id must be an unsigned int') { @dn.local_sheet_id = -1 }
+    assert_nothing_raised { @dn.local_sheet_id = 1 }
+  end
+
+  def test_to_xml_string
+    assert_raise(ArgumentError, 'name is required for serialization') { @dn.to_xml_string }
+    @dn.name = '_xlnm.Print_Titles'
+    @dn.hidden = true
+    doc = Nokogiri::XML(@dn.to_xml_string)
+    assert(doc.xpath("//definedName[@name='_xlnm.Print_Titles']"))
+    assert(doc.xpath("//definedName[@hidden='true']"))
+    assert_equal('Sheet1!A1:A1', doc.xpath('//definedName').text)
+  end
+end
diff --git a/test/workbook/tc_workbook.rb b/test/workbook/tc_workbook.rb
index f6f38778..537f9074 100644
--- a/test/workbook/tc_workbook.rb
+++ b/test/workbook/tc_workbook.rb
@@ -24,7 +24,10 @@ class TestWorkbook < Test::Unit::TestCase
     assert_equal(Axlsx::Workbook.date1904, @wb.date1904)
   end
 
-
+  def test_add_defined_name
+    @wb.add_defined_name 'Sheet1!1:1', :name => '_xlnm.Print_Titles', :hidden => true
+    assert_equal(1, @wb.defined_names.size)
+  end
 
   def test_shared_strings
     assert_equal(@wb.use_shared_strings, nil)
@@ -72,7 +75,6 @@ class TestWorkbook < Test::Unit::TestCase
     assert(@wb.worksheets.size == 1)
   end
 
-
   def test_to_xml_string_defined_names
     @wb.add_worksheet do |sheet|
       sheet.add_row [1, "two"]