fusefrontend_reverse: reject excludes for the root directory ""

This is most likely a mistake by the user. Reject it.

1 files changed, 26 insertions, 0 deletions

diff --git a/internal/fusefrontend_reverse/isexcluded_test.go b/internal/fusefrontend_reverse/isexcluded_test.go
new file mode 100644
index 0000000..fc3831a
--- /dev/null
+++ b/internal/fusefrontend_reverse/isexcluded_test.go
@@ -0,0 +1,26 @@
+package fusefrontend_reverse
+
+import (
+	"testing"
+)
+
+func verifyExcluded(t *testing.T, rfs *ReverseFS, paths []string) {
+	for _, p := range paths {
+		if !rfs.isExcluded(p) {
+			t.Errorf("Path %q should be excluded, but is not", p)
+		}
+	}
+	if t.Failed() {
+		t.Logf("cExclude = %#v", rfs.cExclude)
+	}
+}
+
+// Note: See also the integration tests in
+// tests/reverse/exclude_test.go
+func TestIsExcluded(t *testing.T) {
+	var rfs ReverseFS
+	// If the root directory is excluded, all files and subdirs should be excluded
+	// as well
+	rfs.cExclude = []string{""}
+	verifyExcluded(t, &rfs, []string{"", "foo", "foo/bar"})
+}