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test: variant constructor and assignment operator (#7957)

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* test: variant constructor

* test: variant assignment operator
This commit is contained in:
Yat Ho
2025-12-19 22:05:05 +08:00
committed by GitHub
parent 804fb20a80
commit c4587503f6
1 changed files with 58 additions and 1 deletions
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59
tests/libtransmission/variant-test.cc
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@@ -424,6 +424,63 @@ TEST_F(VariantTest, mergeMapsOverwritesSrcMapEntries)
EXPECT_EQ(R"({"dup_key":789,"src_key":123,"tgt_key":456})"sv, serde.to_string(tgt));
}
TEST_F(VariantTest, variantConstructor)
{
auto const var_none = tr_variant{};
auto const var_null = tr_variant{ nullptr };
auto const var_true = tr_variant{ true };
auto const var_false = tr_variant{ false };
auto const var_int = tr_variant{ 123 };
auto const var_real = tr_variant{ 4.5 };
auto const var_sv = tr_variant{ "foo"sv };
auto const var_s = tr_variant{ "foo"s };
auto const var_char_ptr = tr_variant{ "foo" };
auto const var_char_nullptr = tr_variant{ static_cast<char const*>(nullptr) };
EXPECT_EQ(var_none.index(), tr_variant::NoneIndex);
EXPECT_EQ(var_null.index(), tr_variant::NullIndex);
EXPECT_EQ(var_true.index(), tr_variant::BoolIndex);
EXPECT_EQ(var_false.index(), tr_variant::BoolIndex);
EXPECT_EQ(var_int.index(), tr_variant::IntIndex);
EXPECT_EQ(var_real.index(), tr_variant::DoubleIndex);
EXPECT_EQ(var_sv.index(), tr_variant::StringIndex);
EXPECT_EQ(var_s.index(), tr_variant::StringIndex);
EXPECT_EQ(var_char_ptr.index(), tr_variant::StringIndex);
EXPECT_EQ(var_char_nullptr.index(), tr_variant::StringIndex);
}
TEST_F(VariantTest, variantAssingmentOperator)
{
auto var = tr_variant{};
var = nullptr;
EXPECT_EQ(var.index(), tr_variant::NullIndex);
var = true;
EXPECT_EQ(var.index(), tr_variant::BoolIndex);
var = false;
EXPECT_EQ(var.index(), tr_variant::BoolIndex);
var = 123;
EXPECT_EQ(var.index(), tr_variant::IntIndex);
var = 4.5;
EXPECT_EQ(var.index(), tr_variant::DoubleIndex);
var = "foo"sv;
EXPECT_EQ(var.index(), tr_variant::StringIndex);
var = "foo"s;
EXPECT_EQ(var.index(), tr_variant::StringIndex);
var = "foo";
EXPECT_EQ(var.index(), tr_variant::StringIndex);
var = static_cast<char const*>(nullptr);
EXPECT_EQ(var.index(), tr_variant::StringIndex);
}
TEST_F(VariantTest, mergeOverwritesDifferingTypes)
{
auto const variants = std::array<std::pair<tr_variant, std::string_view>, 7U>{ {
@@ -738,7 +795,7 @@ TEST_F(VariantTest, visitsNodesDepthFirst)
R"(["files","name","file1","size",5,"pieces",1,2,"name","file2","size",7,"pieces","meta","active",true])"sv;
EXPECT_EQ(Expected, actual);
// test that we visited the expected number of nodes
// test that we visited the expected number of nodes.
auto const expected_visited_count = std::map<size_t, size_t>{
{ tr_variant::BoolIndex, 1U }, //
{ tr_variant::IntIndex, 4U }, //