#include "doctest/doctest/doctest.h"
#include "../src/LLVMVisitor/Register.h"

TEST_SUITE_BEGIN("Register");

TEST_SUITE("Operators") {
	TEST_CASE("++prefix_IncrementsCounter_WhenGivenNewRegister") {
		Register r("");
		++r;
		CHECK_EQ(*r, "2");
	}

	TEST_CASE("postfix++_IncrementsCounter_WhenGivenNewRegister") {
		Register r("");
		r++;
		CHECK_EQ(*r, "2");
	}

	TEST_CASE("*_ReturnsStringRepresentationOfNumber_WhenNoPrefixIsGiven") {
		Register r("");
		CHECK_EQ(*r, "1");
	}

	TEST_CASE("*_ReturnsStringRepresentationOfNumberAfterPrefix_WhenPrefixIsGiven") {
		Register r("abcd");
		CHECK_EQ(*r, "abcd1");
	}
}

TEST_SUITE("Functions") {
	TEST_CASE("reset_PutsCounterTo0_WhenGivenNewRegister") {
		Register r("");
		r.reset();
		CHECK_EQ(*r, "0");
	}

	TEST_CASE("reset_PutsCounterTo0_WhenGivenPrefixIncrementedRegister") {
		Register r("");
		++r;
		r.reset();
		CHECK_EQ(*r, "0");
	}

	TEST_CASE("headless_ReturnsOnlyNumber_WhenGivenRegisterWithPrefix") {
		Register r("abcd");
		CHECK_EQ(r.headless(), "1");
	}
}

TEST_SUITE_END();