Fix CI on ruby < 2.5

c.f. https://circleci.com/workflow-run/dbedb2a9-0b98-4d2f-ba2d-00e8806b137e
sue445 · Aug 31, 2019 · 664db8b · 664db8b
1 parent b3c7a4a
commit 664db8b
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/Gemfile b/Gemfile
@@ -4,3 +4,8 @@ git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }
 
 # Specify your gem's dependencies in itest5ch.gemspec
 gemspec
+
+if Gem::Version.create(RUBY_VERSION) < Gem::Version.create("2.5.0")
+  # activesupport v6.0.0 requires Ruby v2.5.0+
+  gem "activesupport", "< 6.0.0", group: :test
+end