Add test cases for password util

util/password.go

@@ -5,7 +5,12 @@ import (
 	"time"
 )
 
+// GeneratePassword generates a password with the specific length
 func GeneratePassword(length int) string {
+	if length <= 0 {
+		return ""
+	}
+
 	rand.Seed(time.Now().UnixNano())
 	digits := "0123456789"
 	specials := "~=+%^*/()[]{}/!@#$?|"

util/password_test.go

+package util
+
+import (
+	"github.com/golang/mock/gomock"
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+var _ = Describe("Password util test", func() {
+	var (
+		ctrl   *gomock.Controller
+		length int
+	)
+
+	BeforeEach(func() {
+		ctrl = gomock.NewController(GinkgoT())
+		length = 3
+	})
+
+	AfterEach(func() {
+		ctrl.Finish()
+	})
+
+	Context("basic test", func() {
+		It("password length", func() {
+			pass := GeneratePassword(length)
+			Expect(len(pass)).To(Equal(length))
+		})
+
+		It("Different length", func() {
+			length = 6
+			pass := GeneratePassword(length)
+			Expect(len(pass)).To(Equal(length))
+		})
+
+		It("Negative length", func() {
+			length = -1
+			pass := GeneratePassword(length)
+			Expect(len(pass)).To(Equal(0))
+		})
+
+		It("Zero length", func() {
+			length = 0
+			pass := GeneratePassword(length)
+			Expect(len(pass)).To(Equal(length))
+		})
+	})
+})

util/setup_test.go

+package util
+
+import (
+	"testing"
+
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+func TestUtils(t *testing.T) {
+	RegisterFailHandler(Fail)
+	RunSpecs(t, "jcli utils test")
+}