1 files changed, 17 insertions, 4 deletions
diff --git a/mrbgems/mruby-numeric-ext/test/numeric.rb b/mrbgems/mruby-numeric-ext/test/numeric.rb
index 6c1cf0fce..4d9e83113 100644
--- a/mrbgems/mruby-numeric-ext/test/numeric.rb
+++ b/mrbgems/mruby-numeric-ext/test/numeric.rb
@@ -2,9 +2,22 @@
 # Numeric(Ext) Test
 
 assert('Integer#chr') do
-  assert_equal(65.chr, "A")
-  assert_equal(0x42.chr, "B")
+  assert_equal("A", 65.chr)
+  assert_equal("B", 0x42.chr)
 
-  # multibyte encoding (not support yet)
-  assert_raise(RangeError) { 12345.chr }
+  if "こんにちわ世界".size == 7 then
+      # UTF-8 gem is configured
+      assert_raise(RangeError) { 0x110000.chr }
+  else
+      # multibyte encoding (not support yet)
+      assert_raise(RangeError) { 256.chr }
+  end
+end
+
+assert('Integer#div') do
+  assert_equal 52, 365.div(7)
+end
+
+assert('Float#div') do
+  assert_float 52, 365.2425.div(7)
 end