add unit-test for daemon/config/getUnknownFlags

Signed-off-by: Erhuan <[email protected]>

Author: cyrann

daemon/config/config_test.go

@@ -3,6 +3,7 @@ package config
 import (
 	"testing"
 
+	"github.com/spf13/pflag"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -53,5 +54,45 @@ func TestGetConflictConfigurations(t *testing.T) {
 }
 
 func TestGetUnknownFlags(t *testing.T) {
-	// TODO
+	var cfg = &Config{}
+
+	flagSet := new(pflag.FlagSet)
+	flagSet.StringVar(&cfg.HomeDir, "home-dir", "/test/test/test", "Specify root dir of pouchd")
+	flagSet.BoolVar(&cfg.IsCriEnabled, "enable-cri", false, "Specify whether enable the cri part of pouchd which is used to support Kubernetes")
+	flagSet.IntVar(&cfg.OOMScoreAdjust, "oom-score-adj", -500, "Set the oom_score_adj for the daemon")
+
+	flagSetNil := new(pflag.FlagSet)
+
+	assert := assert.New(t)
+
+	fileFlagsKnown := map[string]interface{}{
+		"home-dir":   "go/go/go",
+		"enable-cri": true,
+	}
+
+	fileFlagsUnknown := map[string]interface{}{
+		"oom-score-adj": 100,
+		"unknownflag":   "unknownflag",
+	}
+
+	fileFlagsNil := map[string]interface{}{}
+
+	error := getUnknownFlags(flagSet, fileFlagsKnown)
+	assert.Equal(error, nil)
+
+	error = getUnknownFlags(flagSet, fileFlagsUnknown)
+	assert.NotNil(error)
+
+	error = getUnknownFlags(flagSet, fileFlagsNil)
+	assert.Equal(error, nil)
+
+	error = getUnknownFlags(flagSetNil, fileFlagsUnknown)
+	assert.NotNil(error)
+
+	error = getUnknownFlags(flagSetNil, fileFlagsKnown)
+	assert.NotNil(error)
+
+	error = getUnknownFlags(flagSetNil, fileFlagsNil)
+	assert.Equal(error, nil)
+
 }