fix namespace suggestion error on context switch

internal/view/app.go

@@ -55,6 +55,7 @@ type App struct {
 	showHeader    bool
 	showLogo      bool
 	showCrumbs    bool
+	namespaces    []string
 }
 
 // NewApp returns a K9s app instance.
@@ -120,6 +121,11 @@ func (a *App) Init(version string, rate int) error {
 	a.layout(ctx)
 	a.initSignals()
 
+	a.namespaces, err = a.namespaceNames()
+	if err != nil {
+		log.Error().Err(err).Msg("failed to list namespaces")
+	}
+
 	return nil
 }
 
@@ -151,11 +157,6 @@ func (a *App) initSignals() {
 }
 
 func (a *App) suggestCommand() model.SuggestionFunc {
-	namespaceNames, err := a.namespaceNames()
-	if err != nil {
-		log.Error().Err(err).Msg("failed to list namespaces")
-	}
-
 	contextNames, err := a.contextNames()
 	if err != nil {
 		log.Error().Err(err).Msg("failed to list contexts")
@@ -176,7 +177,7 @@ func (a *App) suggestCommand() model.SuggestionFunc {
 			}
 		}
 
-		entries = append(entries, suggestSubCommand(s, namespaceNames, contextNames)...)
+		entries = append(entries, suggestSubCommand(s, a.namespaces, contextNames)...)
 		if len(entries) == 0 {
 			return nil
 		}
@@ -473,6 +474,12 @@ func (a *App) switchContext(name string) error {
 		a.clusterModel.Reset(a.factory)
 	}
 
+	namespaceNames, err := a.namespaceNames()
+	if err != nil {
+		log.Error().Err(err).Msg("failed to list namespaces")
+	}
+	a.namespaces = namespaceNames
+
 	return nil
 }
 

internal/view/app_int_test.go

@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright Authors of K9s
+
+package view
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func Test_suggestSubCommand(t *testing.T) {
+	namespaceNames := []string{"kube-system", "kube-public", "default", "nginx-ingress"}
+	contextNames := []string{"develop", "test", "pre", "prod"}
+
+	tests := []struct {
+		Command     string
+		Suggestions []string
+	}{
+		{Command: "q", Suggestions: nil},
+		{Command: "xray  dp", Suggestions: nil},
+		{Command: "help  k", Suggestions: nil},
+		{Command: "ctx p", Suggestions: []string{"re", "rod"}},
+		{Command: "ctx   p", Suggestions: []string{"re", "rod"}},
+		{Command: "ctx pr", Suggestions: []string{"e", "od"}},
+		{Command: "context   d", Suggestions: []string{"evelop"}},
+		{Command: "contexts   t", Suggestions: []string{"est"}},
+		{Command: "po ", Suggestions: nil},
+		{Command: "po  x", Suggestions: nil},
+		{Command: "po k", Suggestions: []string{"ube-system", "ube-public"}},
+		{Command: "po  kube-", Suggestions: []string{"system", "public"}},
+	}
+
+	for _, tt := range tests {
+		got := suggestSubCommand(tt.Command, namespaceNames, contextNames)
+		assert.Equal(t, tt.Suggestions, got)
+	}
+}

internal/view/app_test.go

@@ -1,46 +1,19 @@
 // SPDX-License-Identifier: Apache-2.0
 // Copyright Authors of K9s
 
-package view
+package view_test
 
 import (
 	"testing"
 
 	"github.com/derailed/k9s/internal/config"
+	"github.com/derailed/k9s/internal/view"
 	"github.com/stretchr/testify/assert"
 )
 
 func TestAppNew(t *testing.T) {
-	a := NewApp(config.NewConfig(ks{}))
+	a := view.NewApp(config.NewConfig(ks{}))
 	_ = a.Init("blee", 10)
 
 	assert.Equal(t, 11, len(a.GetActions()))
 }
-
-func Test_suggestSubCommand(t *testing.T) {
-	namespaceNames := []string{"kube-system", "kube-public", "default", "nginx-ingress"}
-	contextNames := []string{"develop", "test", "pre", "prod"}
-
-	tests := []struct {
-		Command     string
-		Suggestions []string
-	}{
-		{Command: "q", Suggestions: nil},
-		{Command: "xray  dp", Suggestions: nil},
-		{Command: "help  k", Suggestions: nil},
-		{Command: "ctx p", Suggestions: []string{"re", "rod"}},
-		{Command: "ctx   p", Suggestions: []string{"re", "rod"}},
-		{Command: "ctx pr", Suggestions: []string{"e", "od"}},
-		{Command: "context   d", Suggestions: []string{"evelop"}},
-		{Command: "contexts   t", Suggestions: []string{"est"}},
-		{Command: "po ", Suggestions: nil},
-		{Command: "po  x", Suggestions: nil},
-		{Command: "po k", Suggestions: []string{"ube-system", "ube-public"}},
-		{Command: "po  kube-", Suggestions: []string{"system", "public"}},
-	}
-
-	for _, tt := range tests {
-		got := suggestSubCommand(tt.Command, namespaceNames, contextNames)
-		assert.Equal(t, tt.Suggestions, got)
-	}
-}