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implemented front() and back()

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This commit is contained in:
Niels 2015-04-12 14:14:00 +02:00
parent ade49f8b2a
commit 139ef0e750
3 changed files with 150 additions and 1 deletions
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91
test/unit.cpp
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@ -2471,6 +2471,14 @@ TEST_CASE("element access")
}
}
SECTION("front and back")
{
CHECK(j.front() == json(1));
CHECK(j_const.front() == json(1));
CHECK(j.back() == json({1, 2, 3}));
CHECK(j_const.back() == json({1, 2, 3}));
}
SECTION("access specified element")
{
SECTION("access within bounds")
@ -2829,6 +2837,16 @@ TEST_CASE("element access")
}
}
SECTION("front and back")
{
// "array" is the smallest key
CHECK(j.front() == json({1, 2, 3}));
CHECK(j_const.front() == json({1, 2, 3}));
// "string" is the largest key
CHECK(j.back() == json("hello world"));
CHECK(j_const.back() == json("hello world"));
}
SECTION("access specified element")
{
SECTION("access within bounds")
@ -3282,6 +3300,79 @@ TEST_CASE("element access")
SECTION("other values")
{
SECTION("front and back")
{
SECTION("null")
{
{
json j;
CHECK_THROWS_AS(j.front(), std::out_of_range);
CHECK_THROWS_AS(j.back(), std::out_of_range);
}
{
const json j{};
CHECK_THROWS_AS(j.front(), std::out_of_range);
CHECK_THROWS_AS(j.back(), std::out_of_range);
}
}
SECTION("string")
{
{
json j = "foo";
CHECK(j.front() == j);
CHECK(j.back() == j);
}
{
const json j = "bar";
CHECK(j.front() == j);
CHECK(j.back() == j);
}
}
SECTION("number (boolean)")
{
{
json j = false;
CHECK(j.front() == j);
CHECK(j.back() == j);
}
{
const json j = true;
CHECK(j.front() == j);
CHECK(j.back() == j);
}
}
SECTION("number (integer)")
{
{
json j = 17;
CHECK(j.front() == j);
CHECK(j.back() == j);
}
{
const json j = 17;
CHECK(j.front() == j);
CHECK(j.back() == j);
}
}
SECTION("number (floating point)")
{
{
json j = 23.42;
CHECK(j.front() == j);
CHECK(j.back() == j);
}
{
const json j = 23.42;
CHECK(j.front() == j);
CHECK(j.back() == j);
}
}
}
SECTION("erase with one valid iterator")
{
SECTION("null")