feat(test): add tests for momentary layers

app/tests/momentary-layer/behavior_keymap.dtsi

@@ -0,0 +1,28 @@
+#include <dt-bindings/zmk/keys.h>
+#include <behaviors.dtsi>
+#include <dt-bindings/zmk/kscan-mock.h>
+
+/ {
+	keymap {
+		compatible = "zmk,keymap";
+		label ="Default keymap";
+
+		default_layer {
+			bindings = <
+				&kp B &mo 1
+				&kp D &kp G>;
+		};
+
+		lower_layer {
+			bindings = <
+				&cp M_NEXT &trans
+				&kp L  &kp J>;
+		};
+
+		raise_layer {
+			bindings = <
+				&kp W &kp U
+				&kp X  &kp M>;
+		};
+	};
+};

app/tests/momentary-layer/early-key-release/events.patterns

@@ -0,0 +1,2 @@
+s/.*hid_listener_keycode/kp/p
+s/.*mo_keymap_binding/mo/p

app/tests/momentary-layer/early-key-release/keycode_events.snapshot

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+kp_pressed: usage_page 0x07 keycode 0x05
+mo_pressed: position 1 layer 1
+kp_released: usage_page 0x07 keycode 0x05
+mo_released: position 1 layer 1

app/tests/momentary-layer/early-key-release/native_posix.keymap

@@ -0,0 +1,8 @@
+#include <dt-bindings/zmk/keys.h>
+#include <behaviors.dtsi>
+#include <dt-bindings/zmk/kscan-mock.h>
+#include "../behavior_keymap.dtsi"
+
+&kscan {
+	events = <ZMK_MOCK_PRESS(0,0,0) ZMK_MOCK_PRESS(0,1,100) ZMK_MOCK_RELEASE(0,0,200) ZMK_MOCK_RELEASE(0,1,300)>;
+};

app/tests/momentary-layer/normal/events.patterns

@@ -0,0 +1,2 @@
+s/.*hid_listener_keycode/kp/p
+s/.*mo_keymap_binding/mo/p

app/tests/momentary-layer/normal/keycode_events.snapshot

@@ -0,0 +1,4 @@
+mo_pressed: position 1 layer 1
+kp_pressed: usage_page 0x0c keycode 0xb5
+kp_released: usage_page 0x0c keycode 0xb5
+mo_released: position 1 layer 1

app/tests/momentary-layer/normal/native_posix.keymap

@@ -0,0 +1,8 @@
+#include <dt-bindings/zmk/keys.h>
+#include <behaviors.dtsi>
+#include <dt-bindings/zmk/kscan-mock.h>
+#include "../behavior_keymap.dtsi"
+
+&kscan {
+	events = <ZMK_MOCK_PRESS(0,1,0) ZMK_MOCK_PRESS(0,0,100) ZMK_MOCK_RELEASE(0,0,200) ZMK_MOCK_RELEASE(0,1,300)>;
+};