Add basic ShapeShifter testcases

Signed-off-by: Michael Richters <gedankenexperimenter@gmail.com>

tests/plugins/ShapeShifter/basic/common.h

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+// -*- mode: c++ -*-
+
+/* Kaleidoscope - Firmware for computer input devices
+ * Copyright (C) 2020  Keyboard.io, Inc.
+ *
+ * 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, version 3.
+ *
+ * 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 <cstdint>
+
+namespace kaleidoscope {
+namespace testing {
+
+}  // namespace testing
+}  // namespace kaleidoscope

tests/plugins/ShapeShifter/basic/sketch.ino

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+/* -*- mode: c++ -*-
+ * Copyright (C) 2020  Keyboard.io, Inc.
+ *
+ * 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, version 3.
+ *
+ * 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 <Kaleidoscope.h>
+#include <Kaleidoscope-ShapeShifter.h>
+
+#include "./common.h"
+
+// *INDENT-OFF*
+KEYMAPS(
+    [0] = KEYMAP_STACKED
+    (
+        Key_1, Key_2, Key_3, ___, ___, ___, ___,
+        ___, ___, ___, ___, ___, ___, ___,
+        Key_LeftShift, ___, ___, ___, ___, ___,
+        ___, ___, ___, ___, ___, ___, ___,
+        ___, ___, ___, ___,
+        ___,
+
+        ___, ___, ___, ___, ___, ___, ___,
+        ___, ___, ___, ___, ___, ___, ___,
+        ___, ___, ___, ___, ___, ___,
+        ___, ___, ___, ___, ___, ___, ___,
+        ___, ___, ___, ___,
+        ___
+    ),
+)
+// *INDENT-ON*
+
+static const kaleidoscope::plugin::ShapeShifter::dictionary_t shape_shifter_dictionary[] PROGMEM = {
+  {Key_1, Key_2},
+  {Key_2, Key_1},
+  {Key_3, Key_4},
+  {Key_NoKey, Key_NoKey},
+};
+
+KALEIDOSCOPE_INIT_PLUGINS(ShapeShifter);
+
+void setup() {
+  Kaleidoscope.setup();
+  ShapeShifter.dictionary = shape_shifter_dictionary;
+}
+
+void loop() {
+  Kaleidoscope.loop();
+}

tests/plugins/ShapeShifter/basic/test.ktest

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+VERSION 1
+
+KEYSWITCH K1       0 0
+KEYSWITCH K2       0 1
+KEYSWITCH K3       0 2
+KEYSWITCH LSHIFT   2 0
+
+# ==============================================================================
+NAME ShapeShifter without shift
+
+RUN 5 ms
+PRESS K1
+RUN 1 cycle
+EXPECT keyboard-report Key_1 # The report should contain only `1`
+RUN 5 ms
+RELEASE K1
+RUN 1 cycle
+EXPECT keyboard-report empty # Report should be empty
+
+# ==============================================================================
+NAME ShapeShifter full overlap
+
+RUN 5 ms
+PRESS LSHIFT
+RUN 1 cycle
+EXPECT keyboard-report Key_LeftShift # The report should contain `shift`
+RUN 5 ms
+PRESS K1
+RUN 1 cycle
+EXPECT keyboard-report Key_LeftShift Key_2 # The report should contain `shift` + `2`
+RUN 5 ms
+RELEASE K1
+RUN 1 cycle
+EXPECT keyboard-report Key_LeftShift # The report should contain `shift`
+RUN 5 ms
+RELEASE LSHIFT
+RUN 1 cycle
+EXPECT keyboard-report empty # Report should be empty