108 lines
2.1 KiB
C++
108 lines
2.1 KiB
C++
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#include <vanetza/security/v2/int_x.hpp>
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#include <vanetza/security/v2/length_coding.hpp>
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#include <vanetza/security/tests/serialization.hpp>
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#include <gtest/gtest.h>
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using vanetza::ByteBuffer;
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using vanetza::security::v2::IntX;
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TEST(IntX, set_and_get)
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{
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IntX a;
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EXPECT_EQ(0, a.get());
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a.set(static_cast<int8_t>(89));
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EXPECT_EQ(89, a.get());
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a.set(static_cast<uint32_t>(0x12345678));
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EXPECT_EQ(0x12345678, a.get());
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}
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TEST(IntX, get_size)
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{
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IntX a;
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EXPECT_EQ(1, get_size(a));
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a.set(static_cast<int8_t>(89));
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EXPECT_EQ(1, get_size(a));
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a.set(127);
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EXPECT_EQ(1, get_size(a));
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a.set(128);
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EXPECT_EQ(2, get_size(a));
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a.set(0x23);
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EXPECT_EQ(1, get_size(a));
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a.set(static_cast<uint32_t>(0x00130033));
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EXPECT_EQ(3, get_size(a));
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a.set(static_cast<uint32_t>(0x00230033));
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EXPECT_EQ(4, get_size(a));
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a.set(static_cast<uint32_t>(0x33003300));
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EXPECT_EQ(5, get_size(a));
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}
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TEST(IntX, encode)
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{
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IntX a;
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EXPECT_EQ((ByteBuffer { 0x00 }), a.encode());
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a.set(127);
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EXPECT_EQ((ByteBuffer { 127 }), a.encode());
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a.set(128);
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EXPECT_EQ((ByteBuffer { 0x80, 128 }), a.encode());
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a.set(0x00120034);
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EXPECT_EQ((ByteBuffer { 0xd2, 0x00, 0x34 }), a.encode());
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a.set(0x00320034);
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EXPECT_EQ((ByteBuffer { 0xe0, 0x32, 0x00, 0x34 }), a.encode());
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}
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TEST(IntX, decode)
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{
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ByteBuffer buf { 0xe0, 0x32, 0x00, 0x34 };
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auto decoded = IntX::decode(buf);
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ASSERT_TRUE(!!decoded);
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EXPECT_EQ(0x320034, decoded->get());
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}
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TEST(IntX, decode_one_null_byte)
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{
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ByteBuffer buf { 0x00 };
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auto decoded = IntX::decode(buf);
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ASSERT_TRUE(!!decoded);
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EXPECT_EQ(0, decoded->get());
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}
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TEST(IntX, decode_empty)
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{
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ByteBuffer buf;
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auto decoded = IntX::decode(buf);
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EXPECT_FALSE(!!decoded);
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}
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TEST(IntX, decode_broken)
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{
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ByteBuffer buf { 0xff, 0xff };
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auto decoded = IntX::decode(buf);
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EXPECT_FALSE(!!decoded);
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}
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TEST(IntX, serialization)
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{
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IntX x;
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x.set(0);
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EXPECT_EQ(x, serialize_roundtrip(x));
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x.set(255);
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EXPECT_EQ(x, serialize_roundtrip(x));
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x.set(0x123456);
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EXPECT_EQ(x, serialize_roundtrip(x));
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}
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