diff --git a/test/import_helper_test.rb b/test/import_helper_test.rb
new file mode 100644
--- /dev/null
+++ b/test/import_helper_test.rb
@@ -0,0 +1,40 @@
+require 'test/unit'
+require 'rubygems'
+require 'mocha'
+
+require File.join(File.dirname(__FILE__),'../lib/import_helper')
+
+class ImportHelperTest < Test::Unit::TestCase
+
+  def setup
+  end
+
+  def teardown
+  end
+
+  def test_build_only_singleton_testruns
+    testrun_info = build_testrun_info(3,['1','2','3'])
+    assert_equal [[[1,'1']],[[2,'2']],[[3,'3']]], testrun_info, 'should build singleton testruns'
+  end
+
+  def test_build_only_singleton_testruns2
+    testrun_info = build_testrun_info(4,['1','2','3','4'])
+    assert_equal [[[1,'1']],[[2,'2']],[[3,'3']],[[4,'4']]], testrun_info, 'should build singleton testruns'
+  end
+
+  def test_build_testruns_when_testcases_defined_by_appending_alphabets
+    testrun_info = build_testrun_info(4,['1a','1b','2','3a','3b','4'])
+    assert_equal [[[1,'1a'],[2,'1b']],
+                  [[3,'2']],
+                  [[4,'3a'],[5,'3b']],
+                  [[6,'4']]], testrun_info
+  end
+
+  def test_build_testruns_when_testcases_defined_by_appending_dashed_numbers
+    testrun_info = build_testrun_info(4,['1-1','1-2','2','3-1','3-2','4'])
+    assert_equal [[[1,'1-1'],[2,'1-2']],
+                  [[3,'2']],
+                  [[4,'3-1'],[5,'3-2']],
+                  [[6,'4']]], testrun_info
+  end
+end