Add test for instance having same use_color method of class

1 files changed, 11 insertions, 0 deletions

diff --git a/test/test_highline.rb b/test/test_highline.rb
index 930379e..7736690 100755
--- a/test/test_highline.rb
+++ b/test/test_highline.rb
@@ -509,10 +509,21 @@ class TestHighLine < Minitest::Test
 
   def test_color_setting_per_instance
     # It can set coloring at HighLine class
+    cli_input = StringIO.new
+    cli_output = StringIO.new
+
     old_setting = HighLine.use_color?
+    cli = HighLine.new(cli_input, cli_output)
+
     HighLine.use_color = true
+    cli.use_color = true
+
     @terminal.say("This should be <%= color('cyan', CYAN) %>!")
     assert_equal("This should be \e[36mcyan\e[0m!\n", @output.string)
+
+    cli.say("This should be <%= color('cyan', CYAN) %>!")
+    assert_equal("This should be \e[36mcyan\e[0m!\n", cli_output.string)
+
     HighLine.use_color = old_setting
   end