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47 lines
1.5 KiB
C++
47 lines
1.5 KiB
C++
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#define SOL_CHECK_ARGUMENTS
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#include <catch.hpp>
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#include <sol.hpp>
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#include <iostream>
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#include "test_stack_guard.hpp"
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TEST_CASE("environments/shadowing", "Environments can properly shadow and fallback on variables") {
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sol::state lua;
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lua["b"] = 2142;
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SECTION("no fallback") {
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sol::environment plain_env(lua, sol::create);
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lua.script("a = 24", plain_env);
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sol::optional<int> maybe_env_a = plain_env["a"];
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sol::optional<int> maybe_global_a = lua["a"];
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sol::optional<int> maybe_env_b = plain_env["b"];
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sol::optional<int> maybe_global_b = lua["b"];
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REQUIRE(maybe_env_a != sol::nullopt);
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REQUIRE(maybe_env_a.value() == 24);
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REQUIRE(maybe_env_b == sol::nullopt);
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REQUIRE(maybe_global_a == sol::nullopt);
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REQUIRE(maybe_global_b != sol::nullopt);
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REQUIRE(maybe_global_b.value() == 2142);
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}
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SECTION("fallback") {
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sol::environment env_with_fallback(lua, sol::create, lua.globals());
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lua.script("a = 56", env_with_fallback, sol::default_on_error);
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sol::optional<int> maybe_env_a = env_with_fallback["a"];
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sol::optional<int> maybe_global_a = lua["a"];
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sol::optional<int> maybe_env_b = env_with_fallback["b"];
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sol::optional<int> maybe_global_b = lua["b"];
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REQUIRE(maybe_env_a != sol::nullopt);
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REQUIRE(maybe_env_a.value() == 56);
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REQUIRE(maybe_env_b != sol::nullopt);
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REQUIRE(maybe_env_b.value() == 2142);
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REQUIRE(maybe_global_a == sol::nullopt);
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REQUIRE(maybe_global_b != sol::nullopt);
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REQUIRE(maybe_global_b.value() == 2142);
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}
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}
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