68 lines
2.6 KiB
C++
68 lines
2.6 KiB
C++
/*
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ptrnt - print labels on linux
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Copyright (C) 2023 Moritz Martinius
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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 3 of the License, or
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(at your option) any later version.
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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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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "graphics/Monochrome.hpp"
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#include <gtest/gtest.h>
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TEST(basic_test, Monochrome_convertGrayscale_yieldsMonochrome) {
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const std::vector<uint8_t> pixels({0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00,
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0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00});
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const std::vector<uint8_t> expected({0b10101010, 0b10101010});
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auto mono = ptprnt::graphics::Monochrome(pixels);
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auto out = mono.get();
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EXPECT_EQ(out, expected);
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}
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TEST(basic_test, Monochrome_convertInvertedGrayscale_yieldsInvertedMonochrome) {
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const std::vector<uint8_t> pixels({0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00,
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0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00});
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const std::vector<uint8_t> expected({0b01010101, 0b01010101});
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auto mono = ptprnt::graphics::Monochrome(pixels);
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mono.invert(true);
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auto out = mono.get();
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EXPECT_EQ(out, expected);
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}
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TEST(basic_test, Monochrome_convertWithCustomThreshhold_yieldsMonochromeRespectingThreshhold) {
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const std::vector<uint8_t> pixels({0x0F, 0x11, 0x0F, 0x11, 0x0F, 0x11, 0x0F, 0x11, 0x0F, 0x11,
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0x0F, 0x11, 0x0F, 0x11, 0x0F, 0x11});
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const std::vector<uint8_t> expected({0b01010101, 0b01010101});
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auto mono = ptprnt::graphics::Monochrome(pixels);
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mono.setThreshold(16);
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auto out = mono.get();
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EXPECT_EQ(out, expected);
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}
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TEST(basic_test, Monochrome_convertNonAlignedPixels_spillsOverIntoNewByte) {
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const std::vector<uint8_t> pixels({0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00,
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0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF});
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const std::vector<uint8_t> expected({0b10101010, 0b10101010, 0b10000000});
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auto mono = ptprnt::graphics::Monochrome(pixels);
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auto out = mono.get();
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EXPECT_EQ(out, expected);
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} |