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: internals_windows_test.go
    path of file: ./repos/moby/builder/dockerfile
    
    the code of the file until where you have to start completion: //go:build windows

package dockerfile // import "github.com/docker/docker/builder/dockerfile"

import (

    
func TestNormalizeDest(t *testing.T) {
	tests := []struct{ current, requested, expected, etext string }{
		{``, `D:\`, ``, `Windows does not support destinations not on the system drive (C:)`},
		{``, `e:/`, ``, `Windows does not support destinations not on the system drive (C:)`},
		{`invalid`, `./c1`, ``, `Current WorkingDir invalid is not platform consistent`},
		{`C:`, ``, ``, `Current WorkingDir C: is not platform consistent`},
		{`C`, ``, ``, `Current WorkingDir C is not platform consistent`},
		{`D:\`, `.`, ``, "Windows does not support relative paths when WORKDIR is not the system drive"},
		{``, `D`, `D`, ``},
		{``, `./a1`, `.\a1`, ``},
		{``, `.\b1`, `.\b1`, ``},
		{``, `/`, `\`, ``},
		{``, `\`, `\`, ``},
		{``, `c:/`, `\`, ``},
		{``, `c:\`, `\`, ``},
		{``, `.`, `.`, ``},
		{`C:\wdd`, `./a1`, `\wdd\a1`, ``},
		{`C:\wde`, `.\b1`, `\wde\b1`, ``},
		{`C:\wdf`, `/`, `\`, ``},
		{`C:\wdg`, `\`, `\`, ``},
		{`C:\wdh`, `c:/`, `\`, ``},
		{`C:\wdi`, `c:\`, `\`, ``},
		{`C:\wdj`, `.`, `\wdj`, ``},
		{`C:\wdk`, `foo/bar`, `\wdk\foo\bar`, ``},
		{`C:\wdl`, `foo\bar`, `\wdl\foo\bar`, ``},
		{`C:\wdm`, `foo/bar/`, `\wdm\foo\bar\`, ``},
		{`C:\wdn`, `foo\bar/`, `\wdn\foo\bar\`, ``},
	}
	for _, testcase := range tests {
		msg := fmt.Sprintf("Input: %s, %s", testcase.current, testcase.requested)
		actual, err := normalizeDest(testcase.current, testcase.requested)
		if testcase.etext == "" {
			if !assert.Check(t, err, msg) {
				continue
			}
			assert.Check(t, is.Equal(testcase.expected, actual), msg)
		} else {
			assert.Check(t, is.ErrorContains(err, testcase.etext))
		}
	}
}