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AK: Create MACAddress from string

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Previously there was no way to create a MACAddress by passing a direct
address as a string. This will allow programs like the arp utility to
create a MACAddress instance by user-passed addresses.
This commit is contained in:
brapru 2021-07-24 20:15:14 -04:00 • committed by Andreas Kling
parent 8313d35749
commit 7e40c17460
2 changed files with 62 additions and 0 deletions
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40
Tests/AK/TestMACAddress.cpp
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@ -82,3 +82,43 @@ TEST_CASE(should_string_format)
MACAddress sut(1, 2, 3, 4, 5, 6);
EXPECT_EQ("01:02:03:04:05:06", sut.to_string());
}
TEST_CASE(should_make_mac_address_from_string_numbers)
{
const auto sut = MACAddress::from_string("01:02:03:04:05:06");
EXPECT(sut.has_value());
EXPECT_EQ(1, sut.value()[0]);
EXPECT_EQ(2, sut.value()[1]);
EXPECT_EQ(3, sut.value()[2]);
EXPECT_EQ(4, sut.value()[3]);
EXPECT_EQ(5, sut.value()[4]);
EXPECT_EQ(6, sut.value()[5]);
}
TEST_CASE(should_make_mac_address_from_string_letters)
{
const auto sut = MACAddress::from_string("de:ad:be:ee:ee:ef");
EXPECT(sut.has_value());
EXPECT_EQ(u8 { 0xDE }, sut.value()[0]);
EXPECT_EQ(u8 { 0xAD }, sut.value()[1]);
EXPECT_EQ(u8 { 0xBE }, sut.value()[2]);
EXPECT_EQ(u8 { 0xEE }, sut.value()[3]);
EXPECT_EQ(u8 { 0xEE }, sut.value()[4]);
EXPECT_EQ(u8 { 0xEF }, sut.value()[5]);
}
TEST_CASE(should_make_empty_optional_from_bad_string)
{
const auto sut = MACAddress::from_string("bad string");
EXPECT(!sut.has_value());
}
TEST_CASE(should_make_empty_optional_from_out_of_range_values)
{
const auto sut = MACAddress::from_string("de:ad:be:ee:ee:fz");
EXPECT(!sut.has_value());
}