test: fix a typo

kou · kou · commit 73661ef281f5 · 2024-08-01T11:03:45.000+09:00
diff --git a/test/parse/test_processing_instruction.rb b/test/parse/test_processing_instruction.rb
@@ -4,7 +4,7 @@
 require "rexml/document"
 
 module REXMLTests
-  class TestParseProcessinInstruction < Test::Unit::TestCase
+  class TestParseProcessingInstruction < Test::Unit::TestCase
     include Test::Unit::CoreAssertions
 
     def parse(xml)
