github.com/kolbycrouch/elvish@v0.14.1-0.20210614162631-215b9ac1c423/pkg/eval/pwd_test.go (about)

     1  package eval_test
     2  
     3  import (
     4  	"errors"
     5  	"path/filepath"
     6  	"runtime"
     7  	"testing"
     8  
     9  	. "src.elv.sh/pkg/eval"
    10  	"src.elv.sh/pkg/testutil"
    11  
    12  	. "src.elv.sh/pkg/eval/evaltest"
    13  	"src.elv.sh/pkg/eval/vars"
    14  )
    15  
    16  func TestBuiltinPwd(t *testing.T) {
    17  	tmpHome, cleanup := testutil.InTempHome()
    18  	defer cleanup()
    19  
    20  	testutil.MustMkdirAll("dir1")
    21  	testutil.MustMkdirAll("dir2")
    22  	dir1 := filepath.Join(tmpHome, "dir1")
    23  	dir2 := filepath.Join(tmpHome, "dir2")
    24  
    25  	Test(t,
    26  		That(`pwd=dir1 put $pwd; put $pwd`).Puts(dir1, tmpHome),
    27  		That(`pwd=(num 1) put $pwd`).Throws(vars.ErrPathMustBeString, "pwd"),
    28  	)
    29  
    30  	// We could separate these two test variants into separate unit test
    31  	// modules but that's overkill for this situation and makes the
    32  	// equivalence between the two environments harder to see.
    33  	if runtime.GOOS == "windows" {
    34  		Test(t,
    35  			That(`cd $E:HOME\dir2; pwd=$E:HOME put $pwd; put $pwd`).Puts(tmpHome, dir2),
    36  			That(`cd $E:HOME\dir2; pwd=..\dir1 put $pwd; put $pwd`).Puts(dir1, dir2),
    37  			That(`cd $E:HOME\dir1; pwd=..\dir2 put $pwd; put $pwd`).Puts(dir2, dir1),
    38  		)
    39  	} else {
    40  		Test(t,
    41  			That(`cd ~/dir2; pwd=~ put $pwd; put $pwd`).Puts(tmpHome, dir2),
    42  			That(`cd ~/dir2; pwd=~/dir1 put $pwd; put $pwd`).Puts(dir1, dir2),
    43  			That(`cd ~/dir1; pwd=../dir2 put $pwd; put $pwd`).Puts(dir2, dir1),
    44  		)
    45  	}
    46  }
    47  
    48  // Verify the behavior when the CWD cannot be determined.
    49  func TestBuiltinPwd_GetwdError(t *testing.T) {
    50  	origGetwd := Getwd
    51  	Getwd = mockGetwdWithError
    52  	defer func() { Getwd = origGetwd }()
    53  
    54  	Test(t,
    55  		That(`put $pwd`).Puts("/unknown/pwd"),
    56  	)
    57  }
    58  
    59  func mockGetwdWithError() (string, error) {
    60  	return "", errors.New("cwd unknown")
    61  }