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49 lines
1.7 KiB
C++
49 lines
1.7 KiB
C++
#include <gtest/gtest.h>
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#include <cstdint>
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#include "esphome/core/helpers.h"
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namespace esphome::core::testing {
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static constexpr uint8_t BYTES[] = {0x12, 0x34, 0x56, 0x78};
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static_assert(encode_value_le<uint16_t>(BYTES) == 0x3412);
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static_assert(encode_value<int16_t>(BYTES) == 0x1234);
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TEST(EncodeValue, LittleEndianUnsigned) {
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EXPECT_EQ(encode_value_le<uint8_t>(BYTES), 0x12);
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EXPECT_EQ(encode_value_le<uint16_t>(BYTES + 1), 0x5634);
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EXPECT_EQ(encode_value_le<uint32_t>(BYTES), 0x78563412u);
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}
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TEST(EncodeValue, BigEndianSigned) {
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static constexpr uint8_t MINUS_ONE[] = {0xFF, 0xFF, 0xFF, 0xFF};
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static constexpr uint8_t MIN16[] = {0x80, 0x00};
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static constexpr uint8_t MIN32[] = {0x80, 0x00, 0x00, 0x00};
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EXPECT_EQ(encode_value<int8_t>(MINUS_ONE), -1);
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EXPECT_EQ(encode_value<int16_t>(MINUS_ONE), -1);
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EXPECT_EQ(encode_value<int32_t>(MINUS_ONE), -1);
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EXPECT_EQ(encode_value<int16_t>(MIN16), INT16_MIN);
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EXPECT_EQ(encode_value<int32_t>(MIN32), INT32_MIN);
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}
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TEST(EncodeValue, LittleEndianSigned) {
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static constexpr uint8_t MIN16[] = {0x00, 0x80};
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static constexpr uint8_t MAX16[] = {0xFF, 0x7F};
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static constexpr uint8_t MINUS_TWO[] = {0xFE, 0xFF};
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static constexpr uint8_t MINUS_256[] = {0x00, 0xFF, 0xFF, 0xFF};
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EXPECT_EQ(encode_value_le<int16_t>(MIN16), INT16_MIN);
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EXPECT_EQ(encode_value_le<int16_t>(MAX16), INT16_MAX);
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EXPECT_EQ(encode_value_le<int16_t>(MINUS_TWO), -2);
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EXPECT_EQ(encode_value_le<int32_t>(MINUS_256), -256);
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}
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TEST(EncodeValue, BoolStillCompiles) {
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static constexpr uint8_t ONE[] = {0x01};
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static_assert(encode_value<bool>(ONE));
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static_assert(encode_value_le<bool>(ONE));
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}
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} // namespace esphome::core::testing
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