1 files changed, 51 insertions, 0 deletions
diff --git a/certs/test/unit/cert_pool_test.rb b/certs/test/unit/cert_pool_test.rb
new file mode 100644
index 0000000..24ace57
--- /dev/null
+++ b/certs/test/unit/cert_pool_test.rb
@@ -0,0 +1,51 @@
+require 'test_helper'
+
+class CertPoolTest < ActiveSupport::TestCase
+
+  setup do
+    2.times { Cert.create! }
+  end
+
+  teardown do
+    Cert.all.each {|c| c.destroy}
+  end
+
+  test "picks random sample" do
+    Cert.create! # with 3 certs chances are pretty low we pick the same one 40 times.
+    picked = []
+    first = Cert.sample.id
+    current = Cert.sample.id
+    40.times do
+      break if current != first
+      current = Cert.sample.id
+    end
+    assert_not_equal current, first
+  end
+
+  test "picks cert from the pool" do
+    assert_difference "Cert.count", -1 do
+      cert = Cert.pick_from_pool
+    end
+  end
+
+  test "err's out if all certs have been destroyed" do
+    sample = Cert.first.tap{|c| c.destroy}
+    Cert.all.each {|c| c.destroy}
+    assert_raises RECORD_NOT_FOUND do
+      Cert.expects(:sample).returns(sample)
+      cert = Cert.pick_from_pool
+    end
+  end
+
+  test "picks other cert if first pick has been destroyed" do
+    first = Cert.first.tap{|c| c.destroy}
+    second = Cert.first
+    Cert.expects(:sample).at_least_once.
+      returns(first).
+      then.returns(second)
+    cert = Cert.pick_from_pool
+    assert_equal second, cert
+    assert_nil Cert.first
+  end
+
+end