an undecided (stop) rule ends the search for that file

1 files changed, 23 insertions, 0 deletions

diff --git a/cmd/krino/exclude_test.go b/cmd/krino/exclude_test.go
index e9d4433..f76be0c 100644
--- a/cmd/krino/exclude_test.go
+++ b/cmd/krino/exclude_test.go
@@ -165,3 +165,26 @@ func TestVerboseListsDirectoriesLeftOutOfTheWalk(t *testing.T) {
 		t.Errorf("listed without -v:\n%s", out)
 	}
 }
+
+// TestExplainShowsAnUndecidedRule: explain names a rule it could not decide
+// "undecided", not "no" (plan 12).
+func TestExplainShowsAnUndecidedRule(t *testing.T) {
+	h := home(t)
+	dl := filepath.Join(h, "dl")
+	os.MkdirAll(dl, 0o755)
+	p := filepath.Join(dl, "big.txt")
+	os.WriteFile(p, []byte("confidential "+strings.Repeat("x", 2048)), 0o644)
+	old := time.Date(2026, 1, 1, 0, 0, 0, 0, time.UTC)
+	os.Chtimes(p, old, old)
+	if code, _, errOut := runCLI(t, "init"); code != 0 {
+		t.Fatal(errOut)
+	}
+	if code, _, errOut := runCLI(t, "new", "dl", dl); code != 0 {
+		t.Fatal(errOut)
+	}
+	os.WriteFile(filepath.Join(h, ".config", "krino", "dirs", "dl.conf"), []byte("(path \"~/dl\")\n(max-read 1K)\n(rule \"keep\" (when (content \"confidential\")) (stop))\n(rule \"all\" (move \"Out\"))\n"), 0o644)
+	_, out, errOut := runCLI(t, "explain", p)
+	if !strings.Contains(out, "rule keep: undecided") || !strings.Contains(out, "rule all: not evaluated, stopped by rule keep, which could not be decided") {
+		t.Errorf("explain output:\n%s\n%s", out, errOut)
+	}
+}