1 files changed, 35 insertions, 0 deletions

diff --git a/tests/test_common/test_driver.cpp b/tests/test_common/test_driver.cpp
index 68f1dfd17d..86644ab6bd 100644
--- a/tests/test_common/test_driver.cpp
+++ b/tests/test_common/test_driver.cpp
@@ -18,6 +18,19 @@
 
 TestDriver* TestDriver::m_this = nullptr;
 
+namespace {
+// Given a hex digit between 0 and 15, returns the corresponding keycode.
+uint8_t hex_digit_to_keycode(uint8_t digit) {
+    // clang-format off
+    static const uint8_t hex_keycodes[] = {
+        KC_0, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7,
+        KC_8, KC_9, KC_A, KC_B, KC_C, KC_D, KC_E, KC_F
+    };
+    // clang-format on
+    return hex_keycodes[digit];
+}
+} // namespace
+
 TestDriver::TestDriver() : m_driver{&TestDriver::keyboard_leds, &TestDriver::send_keyboard, &TestDriver::send_mouse, &TestDriver::send_system, &TestDriver::send_consumer} {
     host_set_driver(&m_driver);
     m_this = this;
@@ -47,3 +60,25 @@ void TestDriver::send_system(uint16_t data) {
 void TestDriver::send_consumer(uint16_t data) {
     m_this->send_consumer(data);
 }
+
+namespace internal {
+void expect_unicode_code_point(TestDriver& driver, uint32_t code_point) {
+    testing::InSequence seq;
+    EXPECT_REPORT(driver, (KC_LCTL, KC_LSFT, KC_U));
+
+    bool print_zero = false;
+    for (int i = 7; i >= 0; --i) {
+        if (i <= 3) {
+            print_zero = true;
+        }
+
+        const uint8_t digit = (code_point >> (i * 4)) & 0xf;
+        if (digit || print_zero) {
+            EXPECT_REPORT(driver, (hex_digit_to_keycode(digit)));
+            print_zero = true;
+        }
+    }
+
+    EXPECT_REPORT(driver, (KC_SPC));
+}
+} // namespace internal