Less verbose tests

Signed-off-by: Daniel Nephin <dnephin@gmail.com>

content/local/store_test.go

@@ -85,7 +85,7 @@ func TestContent(t *testing.T) {
 func TestContentWriter(t *testing.T) {
 	ctx, tmpdir, cs, cleanup := contentStoreEnv(t)
 	defer cleanup()
-	defer testutil.DumpDir(t, tmpdir)
+	defer testutil.DumpDirOnFailure(t, tmpdir)
 
 	if _, err := os.Stat(filepath.Join(tmpdir, "ingest")); os.IsNotExist(err) {
 		t.Fatal("ingest dir should be created", err)

content/testsuite/testsuite.go

@@ -47,7 +47,7 @@ func makeTest(t *testing.T, name string, storeFn func(ctx context.Context, root
 			}
 		}()
 
-		defer testutil.DumpDir(t, tmpDir)
+		defer testutil.DumpDirOnFailure(t, tmpDir)
 		fn(ctx, t, cs)
 	}
 }