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-rw-r--r--test/unit/test_waiter.rb34
1 files changed, 34 insertions, 0 deletions
diff --git a/test/unit/test_waiter.rb b/test/unit/test_waiter.rb
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+++ b/test/unit/test_waiter.rb
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+require 'test/unit'
+require 'unicorn'
+require 'unicorn/select_waiter'
+class TestSelectWaiter < Test::Unit::TestCase
+
+  def test_select_timeout # n.b. this is level-triggered
+    sw = Unicorn::SelectWaiter.new
+    IO.pipe do |r,w|
+      sw.get_readers(ready = [], [r], 0)
+      assert_equal [], ready
+      w.syswrite '.'
+      sw.get_readers(ready, [r], 1000)
+      assert_equal [r], ready
+      sw.get_readers(ready, [r], 0)
+      assert_equal [r], ready
+    end
+  end
+
+  def test_linux # ugh, also level-triggered, unlikely to change
+    IO.pipe do |r,w|
+      wtr = Unicorn::Waiter.prep_readers([r])
+      wtr.get_readers(ready = [], [r], 0)
+      assert_equal [], ready
+      w.syswrite '.'
+      wtr.get_readers(ready = [], [r], 1000)
+      assert_equal [r], ready
+      wtr.get_readers(ready = [], [r], 1000)
+      assert_equal [r], ready, 'still ready (level-triggered :<)'
+      assert_nil wtr.close
+    end
+  rescue SystemCallError => e
+    warn "#{e.message} (#{e.class})"
+  end if Unicorn.const_defined?(:Waiter)
+end