Add finder example for MultipleFoundError

Author: dougm

find/example_test.go

@@ -0,0 +1,59 @@
+/*
+Copyright (c) 2020 VMware, Inc. 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 find_test
+
+import (
+	"context"
+	"errors"
+	"fmt"
+
+	"github.com/vmware/govmomi/find"
+	"github.com/vmware/govmomi/simulator"
+	"github.com/vmware/govmomi/vim25"
+)
+
+func ExampleMultipleFoundError() {
+	model := simulator.VPX()
+	model.Portgroup = 2
+
+	simulator.Run(func(ctx context.Context, c *vim25.Client) error {
+		finder := find.NewFinder(c)
+
+		_, err := finder.Network(ctx, "DC0_DVPG*")
+		_, ok := err.(*find.MultipleFoundError) // returns DC0_DVPG{0,1}
+		if !ok {
+			return errors.New("expected error")
+		}
+
+		net0, err := finder.Network(ctx, "DC0_DVPG0")
+		if err != nil {
+			return err
+		}
+		fmt.Println(net0.GetInventoryPath())
+
+		net1, err := finder.Network(ctx, "DC0_DVPG1")
+		if err != nil {
+			return err
+		}
+		fmt.Println(net1.GetInventoryPath())
+
+		return nil
+	}, model)
+	// Output:
+	// /DC0/network/DC0_DVPG0
+	// /DC0/network/DC0_DVPG1
+}