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-rw-r--r--test/json/setup_variant.rb11
1 files changed, 11 insertions, 0 deletions
diff --git a/test/json/setup_variant.rb b/test/json/setup_variant.rb
new file mode 100644
index 0000000000..2dab184bc4
--- /dev/null
+++ b/test/json/setup_variant.rb
@@ -0,0 +1,11 @@
+case ENV['JSON']
+when 'pure'
+ $:.unshift 'lib'
+ require 'json/pure'
+when 'ext'
+ $:.unshift 'ext', 'lib'
+ require 'json/ext'
+else
+ $:.unshift 'ext', 'lib'
+ require 'json'
+end