复制项目

test/e2e/framework/config/config_test.go

@@ -0,0 +1,89 @@
+// Copyright © 2023 OpenIM. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+import (
+	"flag"
+	"reflect"
+	"testing"
+)
+
+func TestCopyFlags(t *testing.T) {
+	type args struct {
+		source *flag.FlagSet
+		target *flag.FlagSet
+	}
+	tests := []struct {
+		name    string
+		args    args
+		wantErr bool
+	}{
+		{
+			name: "Copy empty source to empty target",
+			args: args{
+				source: flag.NewFlagSet("source", flag.ContinueOnError),
+				target: flag.NewFlagSet("target", flag.ContinueOnError),
+			},
+			wantErr: false,
+		},
+		{
+			name: "Copy non-empty source to empty target",
+			args: args{
+				source: func() *flag.FlagSet {
+					fs := flag.NewFlagSet("source", flag.ContinueOnError)
+					fs.String("test-flag", "default", "test usage")
+					return fs
+				}(),
+				target: flag.NewFlagSet("target", flag.ContinueOnError),
+			},
+			wantErr: false,
+		},
+		{
+			name: "Copy source to target with existing flag",
+			args: args{
+				source: func() *flag.FlagSet {
+					fs := flag.NewFlagSet("source", flag.ContinueOnError)
+					fs.String("test-flag", "default", "test usage")
+					return fs
+				}(),
+				target: func() *flag.FlagSet {
+					fs := flag.NewFlagSet("target", flag.ContinueOnError)
+					fs.String("test-flag", "default", "test usage")
+					return fs
+				}(),
+			},
+			wantErr: true,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			defer func() {
+				if r := recover(); (r != nil) != tt.wantErr {
+					t.Errorf("CopyFlags() panic = %v, wantErr %v", r, tt.wantErr)
+				}
+			}()
+			CopyFlags(tt.args.source, tt.args.target)
+
+			// Verify the replicated tag
+			if !tt.wantErr {
+				tt.args.source.VisitAll(func(f *flag.Flag) {
+					if gotFlag := tt.args.target.Lookup(f.Name); gotFlag == nil || !reflect.DeepEqual(gotFlag, f) {
+						t.Errorf("CopyFlags() failed to copy flag %s", f.Name)
+					}
+				})
+			}
+		})
+	}
+}