nihil.ucl: add map<>

1 files changed, 132 insertions, 0 deletions

diff --git a/nihil.ucl/tests/map.cc b/nihil.ucl/tests/map.cc
new file mode 100644
index 0000000..d106c79
--- /dev/null
+++ b/nihil.ucl/tests/map.cc
@@ -0,0 +1,132 @@
+/*
+ * This source code is released into the public domain.
+ */
+
+#include <catch2/catch_test_macros.hpp>
+
+import nihil.ucl;
+
+TEST_CASE("ucl: map: default construct", "[ucl]")
+{
+	auto map = nihil::ucl::map<>();
+	REQUIRE(str(map.type()) == "object");
+}
+
+TEST_CASE("ucl: map: construct from initializer_list", "[ucl]")
+{
+	using namespace nihil::ucl;
+	using namespace std::literals;
+
+	auto map = nihil::ucl::map<integer>{
+		{"1"sv, integer(1)},
+		{"42"sv, integer(42)},
+	};
+
+	REQUIRE(str(map.type()) == "object");
+	REQUIRE(map["1"] == 1);
+	REQUIRE(map["42"] == 42);
+}
+
+TEST_CASE("ucl: map: insert", "[ucl]")
+{
+	using namespace nihil::ucl;
+	using namespace std::literals;
+
+	auto m = map<integer>();
+
+	m.insert({"test1"sv, integer(42)});
+	m.insert({"test2"sv, integer(666)});
+
+	REQUIRE(m["test1"] == 42);
+	REQUIRE(m["test2"] == 666);
+}
+
+TEST_CASE("ucl: map: find", "[ucl]")
+{
+	using namespace nihil::ucl;
+	using namespace std::literals;
+
+	auto map = nihil::ucl::map<integer>{
+		{"1"sv, integer(1)},
+		{"42"sv, integer(42)},
+	};
+
+	auto obj = map.find("42");
+	REQUIRE(obj != std::nullopt);
+	REQUIRE(*obj == 42);
+
+	obj = map.find("43");
+	REQUIRE(obj == std::nullopt);
+}
+
+TEST_CASE("ucl: map: iterate", "[ucl]")
+{
+	using namespace nihil::ucl;
+	using namespace std::literals;
+
+	auto map = nihil::ucl::map<integer>{
+		{"1"sv, integer(1)},
+		{"42"sv, integer(42)},
+	};
+
+	auto i = 0u;
+
+	for (auto [key, value] : map) {
+		if (key == "1")
+			REQUIRE(value == 1);
+		else if (key == "42")
+			REQUIRE(value == 42);
+		else
+			REQUIRE(false);
+		++i;
+	}
+
+	REQUIRE(i == 2);
+}
+
+TEST_CASE("ucl: map: operator[] throws key_not_found", "[ucl]")
+{
+	auto map = nihil::ucl::map<nihil::ucl::integer>();
+	REQUIRE_THROWS_AS(map["nonesuch"], nihil::ucl::key_not_found);
+}
+
+TEST_CASE("ucl: map: remove", "[uc]")
+{
+	using namespace std::literals;
+	using namespace nihil::ucl;
+
+	auto map = nihil::ucl::map<integer>{
+		{"1"sv, integer(1)},
+		{"42"sv, integer(42)},
+	};
+
+	REQUIRE(map.find("42") != std::nullopt);
+	REQUIRE(map.remove("42") == true);
+	REQUIRE(map.find("42") == std::nullopt);
+	REQUIRE(map["1"] == 1);
+
+	REQUIRE(map.remove("42") == false);
+}
+
+TEST_CASE("ucl: map: pop", "[uc]")
+{
+	using namespace std::literals;
+	using namespace nihil::ucl;
+
+	auto map = nihil::ucl::map<integer>{
+		{"1"sv, integer(1)},
+		{"42"sv, integer(42)},
+	};
+
+	REQUIRE(map.find("42") != std::nullopt);
+
+	auto obj = map.pop("42");
+	REQUIRE(obj != std::nullopt);
+	REQUIRE(*obj == 42);
+
+	REQUIRE(map.find("42") == std::nullopt);
+	REQUIRE(map["1"] == 1);
+
+	obj = map.pop("42");
+	REQUIRE(obj == std::nullopt);
+}