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: atomic_writer_test.go
    path of file: ./repos/kubernetes/pkg/volume/util
    
    the code of the file until where you have to start completion: //go:build linux
// +build linux

/*
Copyright 2016 The Kubernetes 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 express or implied.
See the License for the spec
    
func TestValidatePath(t *testing.T) {
	maxPath := strings.Repeat("a", maxPathLength+1)
	maxFile := strings.Repeat("a", maxFileNameLength+1)

	cases := []struct {
		name  string
		path  string
		valid bool
	}{
		{
			name:  "valid 1",
			path:  "i/am/well/behaved.txt",
			valid: true,
		},
		{
			name:  "valid 2",
			path:  "keepyourheaddownandfollowtherules.txt",
			valid: true,
		},
		{
			name:  "max path length",
			path:  maxPath,
			valid: false,
		},
		{
			name:  "max file length",
			path:  maxFile,
			valid: false,
		},
		{
			name:  "absolute failure",
			path:  "/dev/null",
			valid: false,
		},
		{
			name:  "reserved path",
			path:  "..sneaky.txt",
			valid: false,
		},
		{
			name:  "contains doubledot 1",
			path:  "hello/there/../../../../../../etc/passwd",
			valid: false,
		},
		{
			name:  "contains doubledot 2",
			path:  "hello/../etc/somethingbad",
			valid: false,
		},
		{
			name:  "empty",
			path:  "",
			valid: false,
		},
	}

	for _, tc := range cases {
		err := validatePath(tc.path)
		if tc.valid && err != nil {
			t.Errorf("%v: unexpected failure: %v", tc.name, err)
			continue
		}

		if !tc.valid && err == nil {
			t.Errorf("%v: unexpected success", tc.name)
		}
	}
}