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159c086485
- tests/ (114 host cases over production sources), the CI workflow (ASan/UBSan on PRs and master pushes) and REGRESSION_TEST_PLAN.md are tracked - .gitignore grouped and deduplicated (173 -> 96 lines, same ignored set)
51 lines
2.0 KiB
C++
51 lines
2.0 KiB
C++
// helpers/compat/CayenneLPP.h: upstream's wire format, rounded to nearest.
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#include "test.h"
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#include "CayenneLPP.h"
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#include <vector>
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namespace {
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std::vector<uint8_t> bytes(CayenneLPP &l) {
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return std::vector<uint8_t>(l.getBuffer(), l.getBuffer() + l.getSize());
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}
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}
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TEST(lpp_rounding, "UNIT-LPP-001", "Values round to the nearest step (3850 mV is 3.85 V, not the library's 3.84)") {
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CayenneLPP l(64);
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CHECK(l.addVoltage(1, 3850 / 1000.0f) == 4);
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CHECK(bytes(l) == std::vector<uint8_t>({1, 116, 0x01, 0x81})); // 385
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l.reset();
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l.addTemperature(2, 21.96f); // 220, not 219
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CHECK(bytes(l) == std::vector<uint8_t>({2, 103, 0x00, 0xDC}));
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l.reset();
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l.addRelativeHumidity(2, 45.3f); // 90.6 -> 91
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CHECK(bytes(l) == std::vector<uint8_t>({2, 104, 91}));
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}
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TEST(lpp_signed, "UNIT-LPP-002", "Negative values are two's complement in the field, rounded on the magnitude") {
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CayenneLPP l(64);
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l.addTemperature(1, -2.56f); // -25.6 -> -26
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CHECK(bytes(l) == std::vector<uint8_t>({1, 103, 0xFF, 0xE6}));
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l.reset();
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l.addCurrent(3, -0.0125f); // -12.5 mA -> -13
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CHECK(bytes(l) == std::vector<uint8_t>({3, 117, 0xFF, 0xF3}));
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l.reset();
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l.addAltitude(2, -3.4f);
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CHECK(bytes(l) == std::vector<uint8_t>({2, 121, 0xFF, 0xFD}));
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}
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TEST(lpp_gps, "UNIT-LPP-003", "GPS: 0.0001 deg and 0.01 m, 3 bytes each, rounded") {
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CayenneLPP l(64);
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CHECK(l.addGPS(1, 47.49791f, -19.04023f, 123.456f) == 11);
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// 474979, -190402, 12346
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CHECK(bytes(l) == std::vector<uint8_t>({1, 136, 0x07, 0x3F, 0x63, 0xFD, 0x18, 0x3E, 0x00, 0x30, 0x3A}));
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}
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TEST(lpp_overflow, "UNIT-LPP-004", "A field that does not fit is refused whole; the buffer keeps what fit") {
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CayenneLPP l(7);
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CHECK(l.addVoltage(1, 4.0f) == 4);
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CHECK(l.addVoltage(1, 4.0f) == 0);
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CHECK(l.getSize() == 4);
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CHECK(l.addRelativeHumidity(1, 50.0f) == 7);
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}
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