Added unit tests for translating simple rules.

tests/TestTranslation.cpp

@@ -1,2 +1,42 @@
 #include <catch.hpp>
 
+#include <sstream>
+
+#include <anthem/Context.h>
+#include <anthem/Translation.h>
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+
+TEST_CASE("[translation] Rules are translated correctly", "[translation]")
+{
+	std::stringstream input;
+	std::stringstream output;
+	std::stringstream errors;
+
+	anthem::output::Logger logger(output, errors);
+	anthem::Context context = {logger};
+
+	SECTION("simple example 1")
+	{
+		input << "p(1..5).";
+		anthem::translate("input", input, context);
+
+		REQUIRE(output.str() == "V1 in (1..5) -> p(V1)\n");
+	}
+
+	SECTION("simple example 2")
+	{
+		input << "p(N) :- N = 1..5.";
+		anthem::translate("input", input, context);
+
+		REQUIRE(output.str() == "V1 in N and exists X1, X2 (X1 in N and X2 in (1..5) and X1 = X2) -> p(V1)\n");
+	}
+
+	SECTION("simple example 3")
+	{
+		input << "p(N + 1) :- q(N).";
+		anthem::translate("input", input, context);
+
+		REQUIRE(output.str() == "V1 in (N + 1) and exists X1 (X1 in N and q(X1)) -> p(V1)\n");
+	}
+}