Add regression spec for #2856.

jruby · May 5, 2015 · b50660e · b50660e
1 parent c212568
commit b50660e
Showing 1 changed file with 18 additions and 0 deletions.
diff --git a/spec/regression/GH-2856_bad_character_transcode_should_not_hang_spec.rb b/spec/regression/GH-2856_bad_character_transcode_should_not_hang_spec.rb
@@ -0,0 +1,18 @@
+require 'base64'
+
+NUM_BYTES = 1000
+
+rand = Random.new
+
+describe "A badly-encoded UTF-8 String reencoded with replacements as UTF-16 " do
+  it "completes for all inputs" do
+    # We obviously can't test all valid inputs, but we use the script from #2856 to try
+    10_000.times do
+      data = rand.bytes(NUM_BYTES)
+      data.force_encoding("UTF-8")
+      data = data.encode("UTF-16", :undef => :replace, :invalid => :replace, :replace => '')
+
+      expect(data).to_not eq(nil)
+    end
+  end
+end