repository: run version sub-tests of TestAllVersions in parallel

TestRepositoryIncrementalIndex no longer modified index.Full as this
modified global state and also had no effect on the test result.

internal/repository/repository_test.go

@@ -412,8 +412,6 @@ func TestRepositoryIncrementalIndex(t *testing.T) {
 func testRepositoryIncrementalIndex(t *testing.T, version uint) {
 	repo, _, _ := repository.TestRepositoryWithVersion(t, version)
 
-	index.Full = func(*index.Index) bool { return true }
-
 	// add a few rounds of packs
 	for j := 0; j < 5; j++ {
 		// add some packs and write index
@@ -445,7 +443,6 @@ func testRepositoryIncrementalIndex(t *testing.T, version uint) {
 			t.Errorf("pack %v listed in %d indexes\n", packID, len(ids))
 		}
 	}
-
 }
 
 func TestInvalidCompression(t *testing.T) {

internal/repository/testing.go

@@ -148,6 +148,7 @@ type VersionedTest func(t *testing.T, version uint)
 func TestAllVersions(t *testing.T, test VersionedTest) {
 	for version := restic.MinRepoVersion; version <= restic.MaxRepoVersion; version++ {
 		t.Run(fmt.Sprintf("v%d", version), func(t *testing.T) {
+			t.Parallel()
 			test(t, uint(version))
 		})
 	}