fix string slicing under 1.9 after short writes

Fortunately this only affects the hardly-used FiberSpawn and
FiberPool concurrency models, and also unreleased revisions of
Rev.  1.9 encoding is tricky to handle right when doing I/O in
Ruby...

1 files changed, 15 insertions, 0 deletions

diff --git a/t/t0016.rb b/t/t0016.rb
new file mode 100644
index 0000000..98c9a2e
--- /dev/null
+++ b/t/t0016.rb
@@ -0,0 +1,15 @@
+# -*- encoding: utf-8 -*-
+module T0016
+  CHUNK = '©' * 1024 * 1024
+  BODY = (1..50).map { CHUNK }
+  HEADER = {
+    # BODY.inject(0) { |m,c| m += c.bytesize }.to_s,
+    'Content-Length' => '104857600',
+    'Content-Type' => 'text/plain',
+  }
+
+  def self.call(env)
+    [ 200, HEADER, BODY ]
+  end
+end
+$0 == __FILE__ and T0016::BODY.each { |x| $stdout.syswrite(x) }