Test that RUBY_ENGINE is defined.

Fixes a test failure on Ruby 1.8.7: https://travis-ci.org/tzinfo/tzinfo/jobs/422752019
tzinfo · Aug 30, 2018 · f61cfe6 · f61cfe6
1 parent 7a660fc
commit f61cfe6
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/test/test_utils.rb b/test/test_utils.rb
@@ -102,7 +102,7 @@ def skip_if_has_bug_14060
     # any file that has not previously been loaded, regardless of whether the
     # file name is tainted.
     # See https://bugs.ruby-lang.org/issues/14060#note-5.
-    if RUBY_ENGINE == 'ruby' && RUBY_VERSION == '2.4.4'
+    if defined?(RUBY_ENGINE) && RUBY_ENGINE == 'ruby' && RUBY_VERSION == '2.4.4'
       skip('Skipping test due to Ruby 2.4.4 being affected by Bug 14060 (see https://bugs.ruby-lang.org/issues/14060#note-5)')
     end
   end