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feat: add std::variant constructor and conversion operator to sdbus::Variant (#429)

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Signed-off-by: Anthony Brandon <anthony@amarulasolutions.com>
This commit is contained in:
Anthony Brandon
2024-04-04 20:16:27 +02:00
committed by GitHub
parent b9088cc801
commit 334fcb8833
2 changed files with 54 additions and 0 deletions
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tests/unittests/Types_test.cpp
+37
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@@ -72,6 +72,19 @@ TEST(AVariant, CanBeConstructedFromAComplexValue)
ASSERT_NO_THROW(sdbus::Variant{value});
}
TEST(AVariant, CanBeConstructedFromAnStdVariant)
{
using ComplexType = std::vector<sdbus::Struct<std::string, double>>;
using StdVariantType = std::variant<std::string, uint64_t, ComplexType>;
ComplexType value{{"hello"s, ANY_DOUBLE}, {"world"s, ANY_DOUBLE}};
StdVariantType stdVariant{value};
sdbus::Variant sdbusVariant{stdVariant};
ASSERT_TRUE(sdbusVariant.containsValueOfType<ComplexType>());
ASSERT_THAT(sdbusVariant.get<ComplexType>(), Eq(value));
}
TEST(AVariant, CanBeCopied)
{
auto value = "hello"s;
@@ -130,6 +143,30 @@ TEST(AVariant, ReturnsTrueWhenAskedIfItContainsTheTypeItReallyContains)
ASSERT_TRUE(variant.containsValueOfType<ComplexType>());
}
TEST(AVariant, CanBeConvertedIntoAnStdVariant)
{
using ComplexType = std::vector<sdbus::Struct<std::string, double>>;
using StdVariantType = std::variant<std::string, uint64_t, ComplexType>;
ComplexType value{{"hello"s, ANY_DOUBLE}, {"world"s, ANY_DOUBLE}};
sdbus::Variant sdbusVariant{value};
StdVariantType stdVariant{sdbusVariant};
ASSERT_TRUE(std::holds_alternative<ComplexType>(stdVariant));
ASSERT_THAT(std::get<ComplexType>(stdVariant), Eq(value));
}
TEST(AVariant, IsImplicitlyInterchangeableWithStdVariant)
{
using ComplexType = std::vector<sdbus::Struct<std::string, double>>;
using StdVariantType = std::variant<std::string, uint64_t, ComplexType>;
ComplexType value{{"hello"s, ANY_DOUBLE}, {"world"s, ANY_DOUBLE}};
StdVariantType stdVariant{value};
auto stdVariantCopy = [](const sdbus::Variant &v) -> StdVariantType { return v; }(stdVariant);
ASSERT_THAT(stdVariantCopy, Eq(stdVariant));
}
TEST(ASimpleVariant, ReturnsFalseWhenAskedIfItContainsTypeItDoesntReallyContain)
{
int value = 5;