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proposal for emplace/emplace_back (#349)

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Niels
2016-11-11 19:29:14 +01:00
parent 9ca00e4880
commit 1be73b903e
10 changed files with 302 additions and 1 deletions
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68
test/src/unit-modifiers.cpp
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@ -258,6 +258,74 @@ TEST_CASE("modifiers")
}
}
SECTION("emplace_back()")
{
SECTION("to array")
{
SECTION("null")
{
json j;
j.emplace_back(1);
j.emplace_back(2);
CHECK(j.type() == json::value_t::array);
CHECK(j == json({1, 2}));
}
SECTION("array")
{
json j = {1, 2, 3};
j.emplace_back("Hello");
CHECK(j.type() == json::value_t::array);
CHECK(j == json({1, 2, 3, "Hello"}));
}
SECTION("multiple values")
{
json j;
j.emplace_back(3, "foo");
CHECK(j.type() == json::value_t::array);
CHECK(j == json({{"foo", "foo", "foo"}}));
}
}
SECTION("other type")
{
json j = 1;
CHECK_THROWS_AS(j.emplace_back("Hello"), std::domain_error);
CHECK_THROWS_WITH(j.emplace_back("Hello"), "cannot use emplace_back() with number");
}
}
SECTION("emplace()")
{
SECTION("to object")
{
SECTION("null")
{
json j;
j.emplace("foo", "bar");
j.emplace("baz", "bam");
CHECK(j.type() == json::value_t::object);
CHECK(j == json({{"baz", "bam"}, {"foo", "bar"}}));
}
SECTION("object")
{
json j = {{"foo", "bar"}};
j.emplace("baz", "bam");
CHECK(j.type() == json::value_t::object);
CHECK(j == json({{"baz", "bam"}, {"foo", "bar"}}));
}
}
SECTION("other type")
{
json j = 1;
CHECK_THROWS_AS(j.emplace("foo", "bar"), std::domain_error);
CHECK_THROWS_WITH(j.emplace("foo", "bar"), "cannot use emplace() with number");
}
}
SECTION("operator+=")
{
SECTION("to array")