[FAB-3924] fabric-ca-client test coverage >85%

Add test case for fabric-ca-client package to
get sufficient test coverage.

See [FAB-3924]

Change-Id: I78cfca841789a3c2d635f7a21e5e4e6bda7eb85d
Signed-off-by: Saad Karim <[email protected]>

cmd/fabric-ca-client/enroll.go

@@ -38,8 +38,7 @@ var enrollCmd = &cobra.Command{
 	Long:  "Enroll identity with fabric-ca server",
 	RunE: func(cmd *cobra.Command, args []string) error {
 		if len(args) > 0 {
-			cmd.Help()
-			return nil
+			return fmt.Errorf(extraArgsError, args, cmd.UsageString())
 		}
 
 		err := runEnroll(cmd)

cmd/fabric-ca-client/getcacert.go

@@ -37,8 +37,7 @@ var getCACertCmd = &cobra.Command{
 	Short: "Get CA certificate chain",
 	RunE: func(cmd *cobra.Command, args []string) error {
 		if len(args) > 0 {
-			cmd.Help()
-			return nil
+			return fmt.Errorf(extraArgsError, args, cmd.UsageString())
 		}
 		err := runGetCACert()
 		if err != nil {

cmd/fabric-ca-client/main.go

@@ -54,6 +54,7 @@ var rootCmd = &cobra.Command{
 
 const (
 	fabricCAClientProfileMode = "FABRIC_CA_CLIENT_PROFILE_MODE"
+	extraArgsError            = "Unrecognized arguments found: %v\n\n%s"
 )
 
 var (

cmd/fabric-ca-client/main_test.go

@@ -34,6 +34,7 @@ import (
 	"github.com/hyperledger/fabric-ca/lib"
 	"github.com/hyperledger/fabric-ca/lib/dbutil"
 	"github.com/hyperledger/fabric-ca/util"
+	"github.com/stretchr/testify/assert"
 )
 
 const (
@@ -109,6 +110,24 @@ var (
 	srv        *lib.Server
 )
 
+type TestData struct {
+	input []string // input
+}
+
+func TestExtraArguments(t *testing.T) {
+	errCases := []TestData{
+		{[]string{cmdName, "enroll", "extraArg", "extraArg2"}},
+		{[]string{cmdName, "reenroll", "extraArg", "extraArg2"}},
+		{[]string{cmdName, "register", "extraArg", "extraArg2"}},
+		{[]string{cmdName, "revoke", "extraArg", "extraArg2"}},
+		{[]string{cmdName, "getcacert", "extraArg", "extraArg2"}},
+	}
+
+	for _, e := range errCases {
+		extraArgErrorTest(&e, t)
+	}
+}
+
 // TestCreateDefaultConfigFile test to make sure default config file gets generated correctly
 func TestCreateDefaultConfigFile(t *testing.T) {
 	defYaml = util.GetDefaultConfigFile("fabric-ca-client")
@@ -118,7 +137,7 @@ func TestCreateDefaultConfigFile(t *testing.T) {
 
 	err := RunMain([]string{cmdName, "enroll", "-u", enrollURL, "-m", myhost})
 	if err == nil {
-		t.Errorf("No username/password provided, should have errored")
+		t.Errorf("No server running, should have failed")
 	}
 
 	fileBytes, err := ioutil.ReadFile(defYaml)
@@ -780,3 +799,15 @@ func getSerialAKIByID(id string) (serial, aki string, err error) {
 
 	return
 }
+
+func extraArgErrorTest(in *TestData, t *testing.T) {
+	err := RunMain(in.input)
+	if err == nil {
+		assert.Error(t, errors.New("Should have resulted in an error as extra agruments provided"))
+	}
+	if err != nil {
+		if !strings.Contains(err.Error(), "Extra arguments") {
+			assert.Error(t, fmt.Errorf("Failed for other reason besides extra argument: %s", err))
+		}
+	}
+}

cmd/fabric-ca-client/reenroll.go

@@ -31,7 +31,13 @@ var reenrollCmd = &cobra.Command{
 	Use:   "reenroll",
 	Short: "Reenroll an identity",
 	Long:  "Reenroll an identity with fabric-ca server",
+	// PreRunE block for this command will check to make sure enrollment
+	// information exists before running the command
 	PreRunE: func(cmd *cobra.Command, args []string) error {
+		if len(args) > 0 {
+			return fmt.Errorf(extraArgsError, args, cmd.UsageString())
+		}
+
 		err := configInit(cmd.Name())
 		if err != nil {
 			return err
@@ -42,11 +48,6 @@ var reenrollCmd = &cobra.Command{
 		return nil
 	},
 	RunE: func(cmd *cobra.Command, args []string) error {
-		if len(args) > 0 {
-			cmd.Help()
-			return nil
-		}
-
 		err := runReenroll()
 		if err != nil {
 			return err

cmd/fabric-ca-client/register.go

@@ -30,7 +30,13 @@ var registerCmd = &cobra.Command{
 	Use:   "register",
 	Short: "Register an identity",
 	Long:  "Register an identity with fabric-ca server",
+	// PreRunE block for this command will check to make sure enrollment
+	// information exists before running the command
 	PreRunE: func(cmd *cobra.Command, args []string) error {
+		if len(args) > 0 {
+			return fmt.Errorf(extraArgsError, args, cmd.UsageString())
+		}
+
 		err := configInit(cmd.Name())
 		if err != nil {
 			return err
@@ -41,11 +47,6 @@ var registerCmd = &cobra.Command{
 		return nil
 	},
 	RunE: func(cmd *cobra.Command, args []string) error {
-		if len(args) > 0 {
-			cmd.Help()
-			return nil
-		}
-
 		err := runRegister()
 		if err != nil {
 			return err

cmd/fabric-ca-client/revoke.go

@@ -18,6 +18,7 @@ package main
 
 import (
 	"errors"
+	"fmt"
 	"path/filepath"
 
 	"github.com/cloudflare/cfssl/log"
@@ -33,7 +34,13 @@ var revokeCmd = &cobra.Command{
 	Use:   "revoke",
 	Short: "Revoke an identity",
 	Long:  "Revoke an identity with fabric-ca server",
+	// PreRunE block for this command will check to make sure enrollment
+	// information exists before running the command
 	PreRunE: func(cmd *cobra.Command, args []string) error {
+		if len(args) > 0 {
+			return fmt.Errorf(extraArgsError, args, cmd.UsageString())
+		}
+
 		err := configInit(cmd.Name())
 		if err != nil {
 			return err
@@ -44,11 +51,6 @@ var revokeCmd = &cobra.Command{
 		return nil
 	},
 	RunE: func(cmd *cobra.Command, args []string) error {
-		if len(args) > 0 {
-			cmd.Help()
-			return nil
-		}
-
 		err := runRevoke(cmd)
 		if err != nil {
 			return err