1 files changed, 21 insertions, 0 deletions
diff --git a/scripts/migrate_ref_tests.rb b/scripts/migrate_ref_tests.rb
new file mode 100755
index 00000000..b6c89bfe
--- /dev/null
+++ b/scripts/migrate_ref_tests.rb
@@ -0,0 +1,21 @@
+#!/usr/bin/env ruby
+
+require 'json'
+
+Dir.glob('./tests/ref/**/grid.json').each do |path|
+  # Read contents
+  s = File.open(path) { |f| f.read }
+
+  # Parse
+  grid = JSON.parse(s)
+
+  # Check if it's already migrated / make this migration idempotent
+  next if grid['raw'][0][0].is_a? Array
+
+  # Transform
+  grid['raw'].reverse!
+  grid['raw'] = [grid['raw'], 0, grid['lines'] - 1]
+
+  # Write updated grid
+  File.open(path, 'w') { |f| f << JSON.generate(grid) }
+end