Add 'pkg/' from commit 'a11be4d7596203874b742b6597caf255204c56c3'

git-subtree-dir: pkg
git-subtree-mainline: dcf7368eea
git-subtree-split: a11be4d759

pkg/utils/utils_test.go

@@ -0,0 +1,51 @@
+// Copyright 2016 CNI authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package utils
+
+import (
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+var _ = Describe("Utils", func() {
+	It("must format a short name", func() {
+		chain := FormatChainName("test", "1234")
+		Expect(len(chain)).To(Equal(maxChainLength))
+		Expect(chain).To(Equal("CNI-2bbe0c48b91a7d1b8a6753a8"))
+	})
+
+	It("must truncate a long name", func() {
+		chain := FormatChainName("testalongnamethatdoesnotmakesense", "1234")
+		Expect(len(chain)).To(Equal(maxChainLength))
+		Expect(chain).To(Equal("CNI-374f33fe84ab0ed84dcdebe3"))
+	})
+
+	It("must be predictable", func() {
+		chain1 := FormatChainName("testalongnamethatdoesnotmakesense", "1234")
+		chain2 := FormatChainName("testalongnamethatdoesnotmakesense", "1234")
+		Expect(len(chain1)).To(Equal(maxChainLength))
+		Expect(len(chain2)).To(Equal(maxChainLength))
+		Expect(chain1).To(Equal(chain2))
+	})
+
+	It("must change when a character changes", func() {
+		chain1 := FormatChainName("testalongnamethatdoesnotmakesense", "1234")
+		chain2 := FormatChainName("testalongnamethatdoesnotmakesense", "1235")
+		Expect(len(chain1)).To(Equal(maxChainLength))
+		Expect(len(chain2)).To(Equal(maxChainLength))
+		Expect(chain1).To(Equal("CNI-374f33fe84ab0ed84dcdebe3"))
+		Expect(chain1).NotTo(Equal(chain2))
+	})
+})