github.com/sdboyer/gps@v0.16.3/internal/fs/fs_test.go (about)

     1  package fs
     2  
     3  import (
     4  	"fmt"
     5  	"io/ioutil"
     6  	"os"
     7  	"path/filepath"
     8  	"testing"
     9  )
    10  
    11  func isDir(name string) (bool, error) {
    12  	fi, err := os.Stat(name)
    13  	if os.IsNotExist(err) {
    14  		return false, nil
    15  	}
    16  	if err != nil {
    17  		return false, err
    18  	}
    19  	if !fi.IsDir() {
    20  		return false, fmt.Errorf("%q is not a directory", name)
    21  	}
    22  	return true, nil
    23  }
    24  
    25  func TestCopyDir(t *testing.T) {
    26  	dir, err := ioutil.TempDir("", "gps")
    27  	if err != nil {
    28  		t.Fatal(err)
    29  	}
    30  	defer os.RemoveAll(dir)
    31  
    32  	srcdir := filepath.Join(dir, "src")
    33  	if err := os.MkdirAll(srcdir, 0755); err != nil {
    34  		t.Fatal(err)
    35  	}
    36  
    37  	srcf, err := os.Create(filepath.Join(srcdir, "myfile"))
    38  	if err != nil {
    39  		t.Fatal(err)
    40  	}
    41  
    42  	contents := "hello world"
    43  	if _, err := srcf.Write([]byte(contents)); err != nil {
    44  		t.Fatal(err)
    45  	}
    46  	srcf.Close()
    47  
    48  	destdir := filepath.Join(dir, "dest")
    49  	if err := CopyDir(srcdir, destdir); err != nil {
    50  		t.Fatal(err)
    51  	}
    52  
    53  	dirOK, err := isDir(destdir)
    54  	if err != nil {
    55  		t.Fatal(err)
    56  	}
    57  	if !dirOK {
    58  		t.Fatalf("expected %s to be a directory", destdir)
    59  	}
    60  
    61  	destf := filepath.Join(destdir, "myfile")
    62  	destcontents, err := ioutil.ReadFile(destf)
    63  	if err != nil {
    64  		t.Fatal(err)
    65  	}
    66  
    67  	if contents != string(destcontents) {
    68  		t.Fatalf("expected: %s, got: %s", contents, string(destcontents))
    69  	}
    70  
    71  	srcinfo, err := os.Stat(srcf.Name())
    72  	if err != nil {
    73  		t.Fatal(err)
    74  	}
    75  
    76  	destinfo, err := os.Stat(destf)
    77  	if err != nil {
    78  		t.Fatal(err)
    79  	}
    80  
    81  	if srcinfo.Mode() != destinfo.Mode() {
    82  		t.Fatalf("expected %s: %#v\n to be the same mode as %s: %#v", srcf.Name(), srcinfo.Mode(), destf, destinfo.Mode())
    83  	}
    84  }
    85  
    86  func TestCopyFile(t *testing.T) {
    87  	dir, err := ioutil.TempDir("", "gps")
    88  	if err != nil {
    89  		t.Fatal(err)
    90  	}
    91  	defer os.RemoveAll(dir)
    92  
    93  	srcf, err := os.Create(filepath.Join(dir, "srcfile"))
    94  	if err != nil {
    95  		t.Fatal(err)
    96  	}
    97  
    98  	contents := "hello world"
    99  	if _, err := srcf.Write([]byte(contents)); err != nil {
   100  		t.Fatal(err)
   101  	}
   102  	srcf.Close()
   103  
   104  	destf := filepath.Join(dir, "destf")
   105  	if err := CopyFile(srcf.Name(), destf); err != nil {
   106  		t.Fatal(err)
   107  	}
   108  
   109  	destcontents, err := ioutil.ReadFile(destf)
   110  	if err != nil {
   111  		t.Fatal(err)
   112  	}
   113  
   114  	if contents != string(destcontents) {
   115  		t.Fatalf("expected: %s, got: %s", contents, string(destcontents))
   116  	}
   117  
   118  	srcinfo, err := os.Stat(srcf.Name())
   119  	if err != nil {
   120  		t.Fatal(err)
   121  	}
   122  
   123  	destinfo, err := os.Stat(destf)
   124  	if err != nil {
   125  		t.Fatal(err)
   126  	}
   127  
   128  	if srcinfo.Mode() != destinfo.Mode() {
   129  		t.Fatalf("expected %s: %#v\n to be the same mode as %s: %#v", srcf.Name(), srcinfo.Mode(), destf, destinfo.Mode())
   130  	}
   131  }