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|
package tgz
import (
"fmt"
"os"
"path/filepath"
"reflect"
"regexp"
"sort"
"testing"
"github.com/go-git/go-billy/v5/osfs"
)
func TestExtractError(t *testing.T) {
for i, test := range [...]struct {
tgz string
errRgx *regexp.Regexp
}{
{
tgz: "not-found",
errRgx: regexp.MustCompile("open not-found: (The system cannot find the file specified|no such file).*"),
}, {
tgz: filepath.Join("fixtures", "invalid-gzip.tgz"),
errRgx: regexp.MustCompile("gzip: invalid header"),
}, {
tgz: filepath.Join("fixtures", "not-a-tar.tgz"),
errRgx: regexp.MustCompile("unexpected EOF"),
},
} {
com := fmt.Sprintf("%d) tgz path = %s", i, test.tgz)
_, err, cleanup := Extract(osfs.New(""), test.tgz)
defer cleanup() // Clean up temporary dirs.
if err == nil {
t.Errorf("%s: expect an error, but none was returned", com)
} else if errorNotMatch(err, test.errRgx) {
t.Errorf("%s:\n\treceived error: %s\n\texpected regexp: %s\n",
com, err, test.errRgx)
}
}
}
func errorNotMatch(err error, regexp *regexp.Regexp) bool {
return !regexp.MatchString(err.Error())
}
func TestExtract(t *testing.T) {
for i, test := range [...]struct {
tgz string
tree []string
}{
{
tgz: filepath.Join("fixtures", "test-01.tgz"),
tree: []string{
"foo.txt",
},
}, {
tgz: filepath.Join("fixtures", "test-02.tgz"),
tree: []string{
"baz.txt",
"bla.txt",
"foo.txt",
},
}, {
tgz: filepath.Join("fixtures", "test-03.tgz"),
tree: []string{
"bar",
filepath.Join("bar", "baz.txt"),
filepath.Join("bar", "foo.txt"),
"baz",
filepath.Join("baz", "bar"),
filepath.Join("baz", "bar", "foo.txt"),
filepath.Join("baz", "baz"),
filepath.Join("baz", "baz", "baz"),
filepath.Join("baz", "baz", "baz", "foo.txt"),
"foo.txt",
},
},
} {
com := fmt.Sprintf("%d) tgz path = %s", i, test.tgz)
path, err, cleanup := Extract(osfs.New(""), test.tgz)
defer cleanup() // Clean up temporary dirs.
if err != nil {
t.Fatalf("%s: unexpected error extracting: %s", test.tgz, err)
}
obt, err := relativeTree(path.Root())
if err != nil {
t.Errorf("%s: unexpected error calculating relative path: %s", com, err)
}
sort.Strings(test.tree)
if !reflect.DeepEqual(obt, test.tree) {
t.Fatalf("%s:\n\tobtained: %v\n\t expected: %v", com, obt, test.tree)
}
}
}
// relativeTree returns the list of relative paths to the files and
// directories inside a given directory, recursively.
func relativeTree(dir string) ([]string, error) {
dir = filepath.Clean(dir)
absPaths := []string{}
walkFn := func(path string, _ os.FileInfo, _ error) error {
absPaths = append(absPaths, path)
return nil
}
_ = filepath.Walk(dir, walkFn)
return toRelative(absPaths[1:], dir)
}
// toRelative returns the relative paths (form b) of the list of paths in l.
func toRelative(l []string, b string) ([]string, error) {
r := []string{}
for _, p := range l {
rel, err := filepath.Rel(b, p)
if err != nil {
return nil, err
}
r = append(r, rel)
}
return r, nil
}
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