Add test cases of IRuby.table

Author: mrkn

test/iruby/utils_test.rb

@@ -0,0 +1,25 @@
+module IRubyTest
+  class UtilsTest < TestBase
+    sub_test_case("IRuby.table") do
+      def setup
+        @data = {
+          X: [ 1, 2, 3 ],
+          Y: [ 4, 5, 6 ]
+        }
+      end
+      sub_test_case("without header: option") do
+        def test_table
+          result = IRuby.table(@data)
+          assert_include(result.object, "<th>X</th>")
+        end
+      end
+
+      sub_test_case("with header: false") do
+        def test_table
+          result = IRuby.table(@data, header: false)
+          assert_not_include(result.object, "<th>X</th>")
+        end
+      end
+    end
+  end
+end