github.com/dmmcquay/sia@v1.3.1-0.20180712220038-9f8d535311b9/build/testing_test.go (about)

     1  package build
     2  
     3  import (
     4  	"bytes"
     5  	"io/ioutil"
     6  	"os"
     7  	"path/filepath"
     8  	"reflect"
     9  	"sort"
    10  	"testing"
    11  
    12  	"github.com/NebulousLabs/fastrand"
    13  )
    14  
    15  // TestCopyDir checks that CopyDir copies directories as expected.
    16  func TestCopyDir(t *testing.T) {
    17  	// Create some nested folders to copy.
    18  	os.MkdirAll(TempDir("build"), 0700)
    19  	root := TempDir("build", t.Name())
    20  	os.MkdirAll(root, 0700)
    21  
    22  	data := make([][]byte, 2)
    23  	for i := range data {
    24  		data[i] = fastrand.Bytes(4e3)
    25  	}
    26  
    27  	// Create a file and a directory.
    28  	err := ioutil.WriteFile(filepath.Join(root, "f1"), data[0], 0700)
    29  	if err != nil {
    30  		t.Fatal(err)
    31  	}
    32  	err = os.MkdirAll(filepath.Join(root, "d1"), 0700)
    33  	if err != nil {
    34  		t.Fatal(err)
    35  	}
    36  	err = ioutil.WriteFile(filepath.Join(root, "d1", "d1f1"), data[1], 0700)
    37  	if err != nil {
    38  		t.Fatal(err)
    39  	}
    40  
    41  	// Copy the root directory.
    42  	rootCopy := root + "-copied"
    43  	err = CopyDir(root, rootCopy)
    44  	if err != nil {
    45  		t.Fatal(err)
    46  	}
    47  
    48  	// Verify that the two files, and dir with two files are all correctly
    49  	// copied.
    50  	f1, err := ioutil.ReadFile(filepath.Join(rootCopy, "f1"))
    51  	if err != nil {
    52  		t.Fatal(err)
    53  	}
    54  	if !bytes.Equal(f1, data[0]) {
    55  		t.Error("f1 did not match")
    56  	}
    57  	d1f1, err := ioutil.ReadFile(filepath.Join(rootCopy, "d1", "d1f1"))
    58  	if err != nil {
    59  		t.Fatal(err)
    60  	}
    61  	if !bytes.Equal(d1f1, data[1]) {
    62  		t.Error("f1 did not match")
    63  	}
    64  }
    65  
    66  // TestExtractTarGz tests that ExtractTarGz can extract a valid .tar.gz file.
    67  func TestExtractTarGz(t *testing.T) {
    68  	dir := TempDir("build", t.Name())
    69  	os.MkdirAll(dir, 0700)
    70  	if err := ExtractTarGz("testdata/test.tar.gz", dir); err != nil {
    71  		t.Fatal(err)
    72  	}
    73  	folder, err := os.Open(dir)
    74  	if err != nil {
    75  		t.Fatal(err)
    76  	}
    77  	files, err := folder.Readdirnames(-1)
    78  	if err != nil {
    79  		t.Fatal(err)
    80  	}
    81  	sort.Strings(files)
    82  	exp := []string{"1", "2", "3"}
    83  	if !reflect.DeepEqual(files, exp) {
    84  		t.Fatal("filenames do not match:", files, exp)
    85  	}
    86  }