! go mod init gopkg.in/pkg
stderr '(?s)^go: invalid module path "gopkg.in/pkg": module paths beginning with gopkg.in/ must always have a major version suffix in the form of .vN(.*)go mod init gopkg.in/pkg.v1$'

! go mod init gopkg.in/user/pkg
stderr '(?s)^go: invalid module path "gopkg.in/user/pkg": module paths beginning with gopkg.in/ must always have a major version suffix in the form of .vN(.*)go mod init gopkg.in/user/pkg.v1$'

! go list -m rsc.io/quote@latest
stderr '^go: module rsc.io/quote: invalid response from proxy "'$GOPROXY'": invalid character ''i'' looking for beginning of value$'

! go list -m rsc.io/quote@1.5.2

// Examples is designed to help with producing examples for command line usage.
// Its behavior is mimicking a similar kubectl function in the following ways:
// - Beginning and trailing space characters (including empty lines), are stripped from the output.
// - All lines of text are stripped of beginning and trailing spaces (thus loosing indentation) and are then double-space indented.
func Examples(s string) string {
	trimmedText := strings.TrimSpace(s)

class CancellationCrossVersionSpec extends ToolingApiSpecification {
    def setup() {
        settingsFile << '''
rootProject.name = 'cancelling'
'''
    }

    def "early cancel stops the build before beginning"() {
        buildFile << """
throw new GradleException("should not run")
"""
        def cancel = GradleConnector.newCancellationTokenSource()
        def resultHandler = new TestResultHandler()

        when:

// a comment at the beginning of the file

package empty

// a comment at the beginning of the file

package empty

# Test that go list prefix... does not read directories not beginning with prefix.
env GODEBUG=gofsystrace=1
go list m...
stderr mime
stderr mime[\\/]multipart

		err = fmt.Errorf("invalid archive header")
		return
	}
	name = strings.TrimSpace(string(hdr[:16]))
	return
}

// FindExportData positions the reader r at the beginning of the
// export data section of an underlying GC-created object/archive
// file by reading from it. The reader must be positioned at the
// start of the file before calling this function. The hdr result

// runoutput

// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Test source file beginning with a byte order mark.

package main

import (
	"fmt"
	"strings"
)

func main() {
	prog = strings.Replace(prog, "BOM", "\uFEFF", -1)
	fmt.Print(prog)
}

var prog = `BOM
package main

func main() {
}

// errorcheck

// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// identifiers beginning with non-ASCII digits were incorrectly accepted.
// issue 11359.

package p