You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: security_test.go
    path of file: ./repos/istio/pkg/security
    
    the code of the file until where you have to start completion: // Copyright Istio Authors
//
// 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 
    
func TestSdsCertificateConfigFromResourceName(t *testing.T) {
	cases := []struct {
		name             string
		resource         string
		root             bool
		key              bool
		output           SdsCertificateConfig
		rootResourceName string
		resourceName     string
	}{
		{
			"cert",
			"file-cert:cert~key",
			false,
			true,
			SdsCertificateConfig{"cert", "key", ""},
			"",
			"file-cert:cert~key",
		},
		{
			"root cert",
			"file-root:root",
			true,
			false,
			SdsCertificateConfig{"", "", "root"},
			"file-root:root",
			"",
		},
		{
			"invalid prefix",
			"file:root",
			false,
			false,
			SdsCertificateConfig{"", "", ""},
			"",
			"",
		},
		{
			"invalid contents",
			"file-root:root~extra",
			false,
			false,
			SdsCertificateConfig{"", "", ""},
			"",
			"",
		},
	}
	for _, tt := range cases {
		t.Run(tt.name, func(t *testing.T) {
			got, _ := SdsCertificateConfigFromResourceName(tt.resource)
			if got != tt.output {
				t.Fatalf("got %v, expected %v", got, tt.output)
			}
			if root := got.IsRootCertificate(); root != tt.root {
				t.Fatalf("unexpected isRootCertificate got %v, expected %v", root, tt.root)
			}
			if key := got.IsKeyCertificate(); key != tt.key {
				t.Fatalf("unexpected IsKeyCertificate got %v, expected %v", key, tt.key)
			}
			if root := got.GetRootResourceName(); root != tt.rootResourceName {
				t.Fatalf("unexpected GetRootResourceName got %v, expected %v", root, tt.rootResourceName)
			}
			if cert := got.GetResourceName(); cert != tt.resourceName {
				t.Fatalf("unexpected GetRootResourceName got %v, expected %v", cert, tt.resourceName)
			}
		})
	}
}