github.com/u-root/u-root@v7.0.1-0.20200915234505-ad7babab0a8e+incompatible/cmds/core/elvish/eval/testmain_test.go (about)

     1  package eval
     2  
     3  import (
     4  	"io/ioutil"
     5  	"os"
     6  	"path/filepath"
     7  	"sort"
     8  	"strings"
     9  	"testing"
    10  
    11  	"github.com/u-root/u-root/cmds/core/elvish/util"
    12  )
    13  
    14  var (
    15  	filesToCreate = []string{
    16  		"a1", "a2", "a3", "a10",
    17  		"b1", "b2", "b3",
    18  		"c1", "c2",
    19  		"foo", "bar", "lorem", "ipsum",
    20  	}
    21  	dirsToCreate = []string{"dir", "dir2"}
    22  	fileListing  = getFileListing()
    23  )
    24  
    25  func getFileListing() []string {
    26  	var x []string
    27  	x = append(x, filesToCreate...)
    28  	x = append(x, dirsToCreate...)
    29  	sort.Strings(x)
    30  	return x
    31  }
    32  
    33  func getFilesWithPrefix(prefixes ...string) []string {
    34  	var x []string
    35  	for _, name := range fileListing {
    36  		for _, prefix := range prefixes {
    37  			if strings.HasPrefix(name, prefix) {
    38  				x = append(x, name)
    39  				break
    40  			}
    41  		}
    42  	}
    43  	sort.Strings(x)
    44  	return x
    45  }
    46  
    47  func getFilesBut(excludes ...string) []string {
    48  	var x []string
    49  	for _, name := range fileListing {
    50  		excluded := false
    51  		for _, exclude := range excludes {
    52  			if name == exclude {
    53  				excluded = true
    54  				break
    55  			}
    56  		}
    57  		if !excluded {
    58  			x = append(x, name)
    59  		}
    60  	}
    61  	sort.Strings(x)
    62  	return x
    63  }
    64  
    65  var mods = map[string]string{
    66  	"lorem":    "name = lorem; fn put-name { put $name }",
    67  	"d":        "name = d",
    68  	"a/b/c/d":  "name = a/b/c/d",
    69  	"a/b/c/x":  "use ./d; d = $d:name; use ../../../lorem; lorem = $lorem:name",
    70  	"has/init": "put has/init",
    71  	"put-x":    "put $x",
    72  }
    73  
    74  var libDir string
    75  
    76  func testMain(m *testing.M) {
    77  	var exitCode int
    78  	util.InTempDir(func(tmpHome string) {
    79  		oldHome := os.Getenv("HOME")
    80  		os.Setenv("HOME", tmpHome)
    81  		defer os.Setenv("HOME", oldHome)
    82  
    83  		for _, filename := range filesToCreate {
    84  			file, err := os.Create(filename)
    85  			if err != nil {
    86  				panic(err)
    87  			}
    88  			file.Close()
    89  		}
    90  
    91  		for _, dirname := range dirsToCreate {
    92  			err := os.Mkdir(dirname, 0700)
    93  			if err != nil {
    94  				panic(err)
    95  			}
    96  		}
    97  
    98  		util.WithTempDir(func(dir string) {
    99  			libDir = dir
   100  
   101  			for mod, content := range mods {
   102  				fname := filepath.Join(libDir, mod+".elv")
   103  				os.MkdirAll(filepath.Dir(fname), 0700)
   104  				err := ioutil.WriteFile(fname, []byte(content), 0600)
   105  				if err != nil {
   106  					panic(err)
   107  				}
   108  			}
   109  
   110  			exitCode = m.Run()
   111  		})
   112  	})
   113  	os.Exit(exitCode)
   114  }
   115  
   116  func runTests(t *testing.T, tests []Test) {
   117  	if false {
   118  		if err := RunTests(tests, func() *Evaler {
   119  			ev := NewEvaler()
   120  			ev.SetLibDir(libDir)
   121  			return ev
   122  		}); err != nil {
   123  			t.Error(err)
   124  		}
   125  	}
   126  }