Remove remnant of Go 1.9 compatibility code from tests

internal/archiver/testing.go

@@ -14,7 +14,6 @@ import (
 	"github.com/restic/restic/internal/debug"
 	"github.com/restic/restic/internal/fs"
 	"github.com/restic/restic/internal/restic"
-	"github.com/restic/restic/internal/test"
 )
 
 // TestSnapshot creates a new snapshot of path.
@@ -63,7 +62,7 @@ func (s TestSymlink) String() string {
 // TestCreateFiles creates a directory structure described by dir at target,
 // which must already exist. On Windows, symlinks aren't created.
 func TestCreateFiles(t testing.TB, target string, dir TestDir) {
-	test.Helper(t).Helper()
+	t.Helper()
 	for name, item := range dir {
 		targetPath := filepath.Join(target, name)
 
@@ -100,7 +99,7 @@ type TestWalkFunc func(path string, item interface{}) error
 // TestWalkFiles runs fn for each file/directory in dir, the filename will be
 // constructed with target as the prefix. Symlinks on Windows are ignored.
 func TestWalkFiles(t testing.TB, target string, dir TestDir, fn TestWalkFunc) {
-	test.Helper(t).Helper()
+	t.Helper()
 	for name, item := range dir {
 		targetPath := filepath.Join(target, name)
 
@@ -130,7 +129,7 @@ func fixpath(item string) string {
 // TestEnsureFiles tests if the directory structure at target is the same as
 // described in dir.
 func TestEnsureFiles(t testing.TB, target string, dir TestDir) {
-	test.Helper(t).Helper()
+	t.Helper()
 	pathsChecked := make(map[string]struct{})
 
 	// first, test that all items are there
@@ -248,7 +247,7 @@ func TestEnsureFileContent(ctx context.Context, t testing.TB, repo restic.Reposi
 // TestEnsureTree checks that the tree ID in the repo matches dir. On Windows,
 // Symlinks are ignored.
 func TestEnsureTree(ctx context.Context, t testing.TB, prefix string, repo restic.Repository, treeID restic.ID, dir TestDir) {
-	test.Helper(t).Helper()
+	t.Helper()
 
 	tree, err := repo.LoadTree(ctx, treeID)
 	if err != nil {
@@ -324,7 +323,7 @@ func TestEnsureTree(ctx context.Context, t testing.TB, prefix string, repo resti
 // TestEnsureSnapshot tests if the snapshot in the repo has exactly the same
 // structure as dir. On Windows, Symlinks are ignored.
 func TestEnsureSnapshot(t testing.TB, repo restic.Repository, snapshotID restic.ID, dir TestDir) {
-	test.Helper(t).Helper()
+	t.Helper()
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
 

internal/fs/helpers.go

@@ -4,8 +4,6 @@ import (
 	"io/ioutil"
 	"os"
 	"testing"
-
-	"github.com/restic/restic/internal/test"
 )
 
 // IsRegularFile returns true if fi belongs to a normal file. If fi is nil,
@@ -20,7 +18,7 @@ func IsRegularFile(fi os.FileInfo) bool {
 
 // TestChdir changes the current directory to dest, the function back returns to the previous directory.
 func TestChdir(t testing.TB, dest string) (back func()) {
-	test.Helper(t).Helper()
+	t.Helper()
 
 	prev, err := os.Getwd()
 	if err != nil {
@@ -34,7 +32,7 @@ func TestChdir(t testing.TB, dest string) (back func()) {
 	}
 
 	return func() {
-		test.Helper(t).Helper()
+		t.Helper()
 		t.Logf("chdir back to %v", prev)
 		err = os.Chdir(prev)
 		if err != nil {

internal/repository/testing.go

@@ -42,7 +42,7 @@ const testChunkerPol = chunker.Pol(0x3DA3358B4DC173)
 // password. If be is nil, an in-memory backend is used. A constant polynomial
 // is used for the chunker and low-security test parameters.
 func TestRepositoryWithBackend(t testing.TB, be restic.Backend) (r restic.Repository, cleanup func()) {
-	test.Helper(t).Helper()
+	t.Helper()
 	TestUseLowSecurityKDFParameters(t)
 	restic.TestDisableCheckPolynomial(t)
 
@@ -71,7 +71,7 @@ func TestRepositoryWithBackend(t testing.TB, be restic.Backend) (r restic.Reposi
 // a non-existing directory, a local backend is created there and this is used
 // instead. The directory is not removed, but left there for inspection.
 func TestRepository(t testing.TB) (r restic.Repository, cleanup func()) {
-	test.Helper(t).Helper()
+	t.Helper()
 	dir := os.Getenv("RESTIC_TEST_REPO")
 	if dir != "" {
 		_, err := os.Stat(dir)

internal/test/helper.go

@@ -1,13 +0,0 @@
-package test
-
-import "testing"
-
-// Helperer marks the current function as a test helper.
-type Helperer interface {
-	Helper()
-}
-
-// Helper returns a function that marks the current function as a helper function.
-func Helper(t testing.TB) Helperer {
-	return t
-}