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: build_test.go
    path of file: ./repos/gccrs/libgo/go/go/build
    
    the code of the file until where you have to start completion: // Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license th
    
func TestShellSafety(t *testing.T) {
	tests := []struct {
		input, srcdir, expected string
		result                  bool
	}{
		{"-I${SRCDIR}/../include", "/projects/src/issue 11868", "-I/projects/src/issue 11868/../include", true},
		{"-I${SRCDIR}", "~wtf$@%^", "-I~wtf$@%^", true},
		{"-X${SRCDIR}/1,${SRCDIR}/2", "/projects/src/issue 11868", "-X/projects/src/issue 11868/1,/projects/src/issue 11868/2", true},
		{"-I/tmp -I/tmp", "/tmp2", "-I/tmp -I/tmp", true},
		{"-I/tmp", "/tmp/[0]", "-I/tmp", true},
		{"-I${SRCDIR}/dir", "/tmp/[0]", "-I/tmp/[0]/dir", false},
		{"-I${SRCDIR}/dir", "/tmp/go go", "-I/tmp/go go/dir", true},
		{"-I${SRCDIR}/dir dir", "/tmp/go", "-I/tmp/go/dir dir", true},
	}
	for _, test := range tests {
		output, ok := expandSrcDir(test.input, test.srcdir)
		if ok != test.result {
			t.Errorf("Expected %t while %q expands to %q with SRCDIR=%q; got %t", test.result, test.input, output, test.srcdir, ok)
		}
		if output != test.expected {
			t.Errorf("Expected %q while %q expands with SRCDIR=%q; got %q", test.expected, test.input, test.srcdir, output)
		}
	}
}