pkg: archive extract helper

This exposes the behaviour of curing an archiveArtifact without
requiring a cache. This can be handy and avoids lots of duplicate code.

Signed-off-by: Ophestra <cat@gensokyo.uk>

1 files changed, 10 insertions, 0 deletions

diff --git a/pkg/pkg_test.go b/pkg/pkg_test.go
index 2d5fdf8e..66639b5b 100644
--- a/pkg/pkg_test.go
+++ b/pkg/pkg_test.go
@@ -740,6 +740,16 @@ func newWantScrubError(base *check.Absolute) *pkg.ScrubError {
 	}
 }
 
+// dropFaults removes all fault entries from a cache under testing.
+func dropFaults(t *testing.T, base *check.Absolute) {
+	fault := base.Append("fault")
+	if err := os.RemoveAll(fault.String()); err != nil {
+		t.Fatal(err)
+	} else if err = os.Mkdir(fault.String(), 0); err != nil {
+		t.Fatal(err)
+	}
+}
+
 func TestCache(t *testing.T) {
 	t.Parallel()