github.com/stolowski/snapd@v0.0.0-20210407085831-115137ce5a22/osutil/testhelper.go (about)

     1  // -*- Mode: Go; indent-tabs-mode: t -*-
     2  
     3  /*
     4   * Copyright (C) 2020 Canonical Ltd
     5   *
     6   * This program is free software: you can redistribute it and/or modify
     7   * it under the terms of the GNU General Public License version 3 as
     8   * published by the Free Software Foundation.
     9   *
    10   * This program is distributed in the hope that it will be useful,
    11   * but WITHOUT ANY WARRANTY; without even the implied warranty of
    12   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    13   * GNU General Public License for more details.
    14   *
    15   * You should have received a copy of the GNU General Public License
    16   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
    17   *
    18   */
    19  
    20  package osutil
    21  
    22  import (
    23  	"os"
    24  	"regexp"
    25  )
    26  
    27  var goTestExeRe = regexp.MustCompile(`^.*/.*go-build.*/.*\.test$`)
    28  
    29  // IsTestBinary checks whether the current process is a go test binary.
    30  func IsTestBinary() bool {
    31  	return len(os.Args) > 0 && goTestExeRe.MatchString(os.Args[0])
    32  }
    33  
    34  // MustBeTestBinary checks whether the executing process is a go test binary,
    35  // panics otherwise.
    36  func MustBeTestBinary(panicMsg string) {
    37  	if !IsTestBinary() {
    38  		panic(panicMsg)
    39  	}
    40  }