3 files changed, 159 insertions, 0 deletions
diff --git a/tests/caps_word/unicodemap/config.h b/tests/caps_word/unicodemap/config.h
new file mode 100644
index 0000000000..0f770337b1
--- /dev/null
+++ b/tests/caps_word/unicodemap/config.h
@@ -0,0 +1,20 @@
+// Copyright 2022 Google LLC
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 2 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#pragma once
+
+#include "test_common.h"
+
+#define UNICODE_SELECTED_MODES UNICODE_MODE_LINUX
diff --git a/tests/caps_word/unicodemap/test.mk b/tests/caps_word/unicodemap/test.mk
new file mode 100644
index 0000000000..92bcba762c
--- /dev/null
+++ b/tests/caps_word/unicodemap/test.mk
@@ -0,0 +1,18 @@
+# Copyright 2022 Google LLC
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+CAPS_WORD_ENABLE = yes
+UNICODEMAP_ENABLE = yes
+
diff --git a/tests/caps_word/unicodemap/test_caps_word_unicodemap.cpp b/tests/caps_word/unicodemap/test_caps_word_unicodemap.cpp
new file mode 100644
index 0000000000..21e5493526
--- /dev/null
+++ b/tests/caps_word/unicodemap/test_caps_word_unicodemap.cpp
@@ -0,0 +1,121 @@
+// Copyright 2022 Google LLC
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 2 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#include "keyboard_report_util.hpp"
+#include "keycode.h"
+#include "test_common.hpp"
+#include "test_fixture.hpp"
+#include "test_keymap_key.hpp"
+
+using ::testing::_;
+using ::testing::AnyNumber;
+using ::testing::AnyOf;
+using ::testing::InSequence;
+
+extern "C" {
+enum unicode_names {
+    ENDASH,
+    EMDASH,
+    DELTA_LOWERCASE,
+    DELTA_UPPERCASE,
+};
+
+const uint32_t unicode_map[] PROGMEM = {
+    [ENDASH]          = 0x2013,
+    [EMDASH]          = 0x2014,
+    [DELTA_LOWERCASE] = 0x03b4,
+    [DELTA_UPPERCASE] = 0x0394,
+};
+
+#define U_DASH UP(ENDASH, EMDASH)
+#define U_DELTA UP(DELTA_LOWERCASE, DELTA_UPPERCASE)
+
+bool caps_word_press_user(uint16_t keycode) {
+    switch (keycode) {
+        // Keycodes that continue Caps Word, with shift applied.
+        case U_DELTA:
+            add_weak_mods(MOD_BIT(KC_LSFT)); // Apply shift to next key.
+            return true;
+
+        // Keycodes that continue Caps Word, without shifting.
+        case U_DASH:
+            return true;
+
+        default:
+            return false; // Deactivate Caps Word.
+    }
+}
+} // extern "C"
+
+class CapsWord : public TestFixture {
+   public:
+    void SetUp() override {
+        caps_word_off();
+    }
+};
+
+// Tests that typing U_DELTA while Caps Word is on sends the uppercase Delta.
+TEST_F(CapsWord, ShiftedUnicodeMapKey) {
+    TestDriver driver;
+    KeymapKey  key_delta(0, 0, 0, U_DELTA);
+    KeymapKey  key_spc(0, 1, 0, KC_SPC);
+    set_keymap({key_delta, key_spc});
+
+    // Allow any number of reports with no keys or only KC_LSFT and KC_LCTL.
+    // clang-format off
+    EXPECT_CALL(driver, send_keyboard_mock(AnyOf(
+                KeyboardReport(),
+                KeyboardReport(KC_LSFT),
+                KeyboardReport(KC_LCTL, KC_LSFT))))
+        .Times(AnyNumber());
+    // clang-format on
+    { // Expect: "Uppercase Delta, space, lowercase delta".
+        InSequence s;
+        EXPECT_UNICODE(driver, unicode_map[DELTA_UPPERCASE]);
+        EXPECT_REPORT(driver, (KC_SPC));
+        EXPECT_UNICODE(driver, unicode_map[DELTA_LOWERCASE]);
+    }
+
+    // Turn on Caps Word and tap "delta, space, delta".
+    caps_word_on();
+    tap_keys(key_delta, key_spc, key_delta);
+
+    EXPECT_EQ(is_caps_word_on(), false);
+    VERIFY_AND_CLEAR(driver);
+}
+
+// Tests typing U_ENDASH while Caps Word is on.
+TEST_F(CapsWord, UnshiftedUnicodeMapKey) {
+    TestDriver driver;
+    KeymapKey  key_dash(0, 0, 0, U_DASH);
+    set_keymap({key_dash});
+
+    // Allow any number of reports with no keys or only KC_LSFT and KC_LCTL.
+    // clang-format off
+    EXPECT_CALL(driver, send_keyboard_mock(AnyOf(
+                KeyboardReport(),
+                KeyboardReport(KC_LSFT),
+                KeyboardReport(KC_LCTL, KC_LSFT))))
+        .Times(AnyNumber());
+    // clang-format on
+    EXPECT_UNICODE(driver, unicode_map[ENDASH]);
+
+    // Turn on Caps Word and tap U_DASH key.
+    caps_word_on();
+    tap_key(key_dash);
+
+    EXPECT_EQ(is_caps_word_on(), true);
+    VERIFY_AND_CLEAR(driver);
+}