1 files changed, 36 insertions, 0 deletions
diff --git a/cmd/krino/history_test.go b/cmd/krino/history_test.go
index fce38ad..6d8c1e4 100644
--- a/cmd/krino/history_test.go
+++ b/cmd/krino/history_test.go
@@ -516,3 +516,39 @@ func TestMinAgeRejectedOutsideSortAndExplain(t *testing.T) {
 		t.Errorf("-n --min-age 0: exit %d %s", code, errOut)
 	}
 }
+
+// TestIgnoredGlobalFlagsAreRefused: a global flag a command does not use is
+// refused instead of silently ignored, so "krino -n new ..." or "krino -n
+// init" - meant as a preview - cannot write config (re-review cli F4).
+func TestIgnoredGlobalFlagsAreRefused(t *testing.T) {
+	h := home(t)
+	if code, _, errOut := runCLI(t, "-n", "init"); code != 2 || !strings.Contains(errOut, "-n") {
+		t.Errorf("-n init: exit %d %q", code, errOut)
+	}
+	if _, err := os.Stat(filepath.Join(h, ".config", "krino", "krino.conf")); !os.IsNotExist(err) {
+		t.Fatalf("-n init wrote the config: %v", err)
+	}
+	if code, _, errOut := runCLI(t, "init"); code != 0 {
+		t.Fatal(errOut)
+	}
+	dl := filepath.Join(h, "dl")
+	os.MkdirAll(dl, 0o755)
+	for _, args := range [][]string{
+		{"-n", "new", "dl", dl},
+		{"-y", "check"},
+		{"--json", "log"},
+		{"-v", "log"},
+		{"--json", "undo", "-n"},
+		{"-v", "undo", "-n"},
+	} {
+		if code, _, errOut := runCLI(t, args...); code != 2 || !strings.Contains(errOut, "does not take") {
+			t.Errorf("krino %q: exit %d, stderr %q; want 2, refused", args, code, errOut)
+		}
+	}
+	if _, err := os.Stat(filepath.Join(h, ".config", "krino", "dirs", "dl.conf")); !os.IsNotExist(err) {
+		t.Errorf("-n new wrote a directory file: %v", err)
+	}
+	if code, _, errOut := runCLI(t, "log", "-n", "3"); code != 0 {
+		t.Errorf("log -n 3 (its own count flag) was refused: %d %q", code, errOut)
+	}
+}