144 lines
3.5 KiB
C++
144 lines
3.5 KiB
C++
/* Copyright 2021 Balz Guenat
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "gtest/gtest.h"
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#include "gmock/gmock.h"
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#include <vector>
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#include <algorithm>
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#include <stdio.h>
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extern "C" {
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#include "encoder.h"
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#include "encoder/tests/mock.h"
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}
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struct update {
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int8_t index;
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bool clockwise;
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};
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uint8_t uidx = 0;
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update updates[32];
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bool encoder_update_kb(uint8_t index, bool clockwise) {
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updates[uidx % 32] = {index, clockwise};
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uidx++;
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return true;
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}
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bool setAndRead(pin_t pin, bool val) {
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setPin(pin, val);
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return encoder_read();
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}
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class EncoderTest : public ::testing::Test {};
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TEST_F(EncoderTest, TestInit) {
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uidx = 0;
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encoder_init();
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EXPECT_EQ(pinIsInputHigh[0], true);
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EXPECT_EQ(pinIsInputHigh[1], true);
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EXPECT_EQ(uidx, 0);
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}
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TEST_F(EncoderTest, TestOneClockwise) {
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uidx = 0;
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encoder_init();
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// send 4 pulses. with resolution 4, that's one step and we should get 1 update.
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setAndRead(0, false);
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setAndRead(1, false);
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setAndRead(0, true);
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setAndRead(1, true);
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EXPECT_EQ(uidx, 1);
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EXPECT_EQ(updates[0].index, 0);
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EXPECT_EQ(updates[0].clockwise, true);
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}
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TEST_F(EncoderTest, TestOneCounterClockwise) {
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uidx = 0;
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encoder_init();
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setAndRead(1, false);
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setAndRead(0, false);
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setAndRead(1, true);
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setAndRead(0, true);
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EXPECT_EQ(uidx, 1);
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EXPECT_EQ(updates[0].index, 0);
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EXPECT_EQ(updates[0].clockwise, false);
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}
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TEST_F(EncoderTest, TestTwoClockwiseOneCC) {
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uidx = 0;
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encoder_init();
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setAndRead(0, false);
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setAndRead(1, false);
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setAndRead(0, true);
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setAndRead(1, true);
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setAndRead(0, false);
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setAndRead(1, false);
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setAndRead(0, true);
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setAndRead(1, true);
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setAndRead(1, false);
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setAndRead(0, false);
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setAndRead(1, true);
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setAndRead(0, true);
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EXPECT_EQ(uidx, 3);
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EXPECT_EQ(updates[0].index, 0);
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EXPECT_EQ(updates[0].clockwise, true);
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EXPECT_EQ(updates[1].index, 0);
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EXPECT_EQ(updates[1].clockwise, true);
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EXPECT_EQ(updates[2].index, 0);
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EXPECT_EQ(updates[2].clockwise, false);
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}
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TEST_F(EncoderTest, TestNoEarly) {
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uidx = 0;
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encoder_init();
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// send 3 pulses. with resolution 4, that's not enough for a step.
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setAndRead(0, false);
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setAndRead(1, false);
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setAndRead(0, true);
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EXPECT_EQ(uidx, 0);
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// now send last pulse
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setAndRead(1, true);
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EXPECT_EQ(uidx, 1);
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EXPECT_EQ(updates[0].index, 0);
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EXPECT_EQ(updates[0].clockwise, true);
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}
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TEST_F(EncoderTest, TestHalfway) {
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uidx = 0;
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encoder_init();
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// go halfway
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setAndRead(0, false);
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setAndRead(1, false);
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EXPECT_EQ(uidx, 0);
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// back off
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setAndRead(1, true);
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setAndRead(0, true);
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EXPECT_EQ(uidx, 0);
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// go all the way
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setAndRead(0, false);
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setAndRead(1, false);
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setAndRead(0, true);
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setAndRead(1, true);
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// should result in 1 update
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EXPECT_EQ(uidx, 1);
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EXPECT_EQ(updates[0].index, 0);
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EXPECT_EQ(updates[0].clockwise, true);
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}
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