After commit c018f5fd29 Fenrir is being switched over to go. If you do not want to be part of the testing process, please switch to master.

internal/input/vertical_character_test.go

@@ -0,0 +1,67 @@
+// Copyright (c) 2026 Storm Dragon
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+package input
+
+import (
+	"testing"
+
+	"git.stormux.org/storm/fenrir/internal/command"
+)
+
+func TestVerticalCharacterChordsRepeatAndRelease(t *testing.T) {
+	for _, layout := range []string{"desktop", "laptop"} {
+		bindings, _, err := Load_bindings([]string{"../../config/keyboard/" + layout + ".toml"})
+		if err != nil {
+			t.Fatal(err)
+		}
+		for _, trial := range []struct {
+			desktop, laptop uint16
+			want            command.ID
+		}{
+			{KeyKP8, 23, command.ReviewUp}, {KeyKP2, 51, command.ReviewDown},
+		} {
+			for _, controlKey := range []uint16{KeyCtrl, KeyRightCtrl} {
+				for _, modifierFirst := range []bool{false, true} {
+					for _, numLock := range []bool{false, true} {
+						router, err := New_router(bindings)
+						if err != nil {
+							t.Fatal(err)
+						}
+						keyCode := trial.desktop
+						if layout == "laptop" {
+							keyCode = trial.laptop
+						}
+						router.Key(0, KeyInsert, 1, numLock, false)
+						controlPress := router.Key(1, controlKey, 1, numLock, false)
+						for _, value := range []int32{1, 2, 2} {
+							if got := router.Key(0, keyCode, value, numLock, false); got.Command != trial.want || got.Forward || !got.Interrupt {
+								t.Fatal(layout, trial.want, value, got)
+							}
+						}
+						releases := []uint16{keyCode, KeyInsert, controlKey}
+						if modifierFirst {
+							releases = []uint16{KeyInsert, controlKey, keyCode}
+						}
+						for _, code := range releases {
+							device := 0
+							if code == controlKey {
+								device = 1
+							}
+							got := router.Key(device, code, 0, numLock, false)
+							if got.Forward != (code == controlKey && controlPress.Forward) || got.Command != "" {
+								t.Fatal("unbalanced release", layout, code, got)
+							}
+						}
+						if router.Held(0) || router.Held(1) {
+							t.Fatal("stuck vertical chord")
+						}
+						if got := router.Key(0, 30, 1, numLock, false); !got.Forward || got.Command != "" {
+							t.Fatal("typing after vertical chord", got)
+						}
+					}
+				}
+			}
+		}
+	}
+}