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-rw-r--r--ext/ripper/test/check-scanner-event-coverage.rb18
1 files changed, 18 insertions, 0 deletions
diff --git a/ext/ripper/test/check-scanner-event-coverage.rb b/ext/ripper/test/check-scanner-event-coverage.rb
new file mode 100644
index 0000000000..4de01e35f4
--- /dev/null
+++ b/ext/ripper/test/check-scanner-event-coverage.rb
@@ -0,0 +1,18 @@
+def main
+ not_tested = eventids() - tested_ids()
+ unless not_tested.empty?
+ puts not_tested
+ exit 1
+ end
+ exit 0
+end
+
+def eventids
+ File.read('eventids2.c').scan(/on__(\w+)/).flatten.uniq
+end
+
+def tested_ids
+ File.read('test/test_scanner_events.rb').scan(/def test_(\S+)/).flatten.uniq
+end
+
+main