Add assignment

Tests/EngineTests.cpp

@@ -0,0 +1,48 @@
+#include "catch2/catch.hpp"
+
+#include "TestUtils.hpp"
+
+#include "EngineFactory.hpp"
+#include "Engine.hpp"
+#include "Fen.hpp"
+#include "Board.hpp"
+
+static std::unique_ptr<Engine> createEngine() {
+    return EngineFactory::createEngine();
+}
+
+static void testGameEnd(const char* fen, bool isMate) {
+    auto engine = createEngine();
+    REQUIRE(engine != nullptr);
+
+    auto board = Fen::createBoard(fen);
+    REQUIRE(board.has_value());
+
+    auto pv = engine->pv(board.value());
+
+    REQUIRE(pv.isMate() == isMate);
+    REQUIRE(pv.score() == 0);
+    REQUIRE(pv.length() == 0);
+}
+
+TEST_CASE("Engine detects checkmate", "[Engine][Checkmate]") {
+    auto fen = GENERATE(
+        // https://lichess.org/editor/4R2k/6pp/8/8/8/8/8/K7_b_-_-_0_1
+        "4R2k/6pp/8/8/8/8/8/K7 b - - 0 1",
+        // https://lichess.org/editor/7k/8/8/8/1bb5/8/r7/3BK3_w_-_-_0_1
+        "7k/8/8/8/1bb5/8/r7/3BK3 w - - 0 1"
+    );
+
+    testGameEnd(fen, true);
+}
+
+TEST_CASE("Engine detects stalemate", "[Engine][Stalemate]") {
+    auto fen = GENERATE(
+        // https://lichess.org/editor/k7/p7/P7/8/8/8/8/KR6_b_-_-_0_1
+        "k7/p7/P7/8/8/8/8/KR6 b - - 0 1",
+        // https://lichess.org/editor/k7/8/8/6n1/r7/4K3/2q5/8_w_-_-_0_1
+        "k7/8/8/6n1/r7/4K3/2q5/8 w - - 0 1"
+    );
+
+    testGameEnd(fen, false);
+}