move connection ID generation from the utils to the protocol package

internal/protocol/connection_id_test.go

@@ -0,0 +1,17 @@
+package protocol
+
+import (
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+var _ = Describe("Connection ID generation", func() {
+	It("generates random connection IDs", func() {
+		c1, err := GenerateConnectionID()
+		Expect(err).ToNot(HaveOccurred())
+		Expect(c1).ToNot(BeZero())
+		c2, err := GenerateConnectionID()
+		Expect(err).ToNot(HaveOccurred())
+		Expect(c1).ToNot(Equal(c2))
+	})
+})