96 lines
2.5 KiB
C++
96 lines
2.5 KiB
C++
/* -*- C++ -*-
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* Serene Programming Language
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*
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* Copyright (c) 2019-2022 Sameer Rahmani <lxsameer@gnu.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 2.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "serene/environment.h"
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#include "serene/exprs/expression.h"
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#include "serene/exprs/symbol.h"
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#include "serene/reader/location.h"
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#include "serene/serene.h"
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#include "./test_helpers.cpp.inc"
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#include <catch2/catch_all.hpp>
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#include <catch2/catch_test_macros.hpp>
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#include <llvm/Support/Casting.h>
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namespace serene {
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TEST_CASE("Environment tests", "[environment]") {
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std::unique_ptr<reader::LocationRange> range(dummyLocation());
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exprs::Node sym = exprs::make<exprs::Symbol>(*range, "example", "ns");
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Environment<exprs::Node> e;
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llvm::Optional<exprs::Node> result = e.lookup("a");
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REQUIRE_FALSE(result.hasValue());
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auto status = e.insert_symbol("a", sym);
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REQUIRE(status.succeeded());
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result = e.lookup("a");
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REQUIRE(result.hasValue());
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CHECK(result.getValue() == sym);
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auto *fetchedSym = llvm::dyn_cast<exprs::Symbol>(result.getValue().get());
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REQUIRE(fetchedSym != nullptr);
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CHECK(fetchedSym->name == "example");
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CHECK(fetchedSym->nsName == "ns");
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SECTION("Testing the environment copy") {
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Environment<exprs::Node> e1(&e);
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result = e1.lookup("b");
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REQUIRE_FALSE(result.hasValue());
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// It should lookup the value in the parent environment
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result = e1.lookup("a");
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REQUIRE(result.hasValue());
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CHECK(result.getValue() == sym);
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};
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};
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TEST_CASE("Test generic Environment usage", "[environment]") {
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Environment<char> env;
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auto result = env.lookup("blah");
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REQUIRE_FALSE(result);
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auto status = env.insert_symbol("blah", 'A');
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REQUIRE(status.succeeded());
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result = env.lookup("blah");
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REQUIRE(result);
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CHECK(*result == 'A');
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result = env.lookup("blah");
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REQUIRE(result);
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CHECK(*result == 'A');
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// Test the overwrite functionality
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status = env.insert_symbol("blah", 'B');
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REQUIRE(status.succeeded());
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result = env.lookup("blah");
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REQUIRE(result);
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CHECK(*result == 'B');
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}
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} // namespace serene
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