Unicode, Unicodemap and UCIS refactor (#21659)

tests/unicode/unicode_basic/test_unicode_basic.cpp

@@ -0,0 +1,26 @@
+// Copyright 2023 QMK
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "keyboard_report_util.hpp"
+#include "keycode.h"
+#include "test_common.hpp"
+#include "test_keymap_key.hpp"
+
+using testing::_;
+
+class UnicodeBasic : public TestFixture {};
+
+TEST_F(UnicodeBasic, sends_unicode_sequence) {
+    TestDriver driver;
+
+    set_unicode_input_mode(UNICODE_MODE_LINUX);
+
+    auto key_uc = KeymapKey(0, 0, 0, UC(0x03A8)); // Ψ
+
+    set_keymap({key_uc});
+
+    EXPECT_UNICODE(driver, 0x03A8);
+    tap_key(key_uc);
+
+    VERIFY_AND_CLEAR(driver);
+}