48 lines
993 B
C++
48 lines
993 B
C++
#include <Nazara/Core/SparsePtr.hpp>
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#include <Catch/catch.hpp>
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#include <array>
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SCENARIO("SparsePtr", "[CORE][SPARSEPTR]")
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{
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GIVEN("A sparse pointer pointing to an array with a stride of 2")
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{
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std::array<int, 5> arrays{0, 1, 2, 3, 4};
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Nz::SparsePtr<int> sparsePtr(arrays.begin(), 2 * sizeof(int));
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WHEN("We use operators")
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{
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THEN("Operator[] with 2 should be 4")
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{
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REQUIRE(4 == sparsePtr[2]);
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}
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THEN("Operator++ and Operator-- should be opposite")
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{
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++sparsePtr;
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REQUIRE(2 == *sparsePtr);
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auto old = sparsePtr++;
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REQUIRE(2 == *old);
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REQUIRE(4 == *sparsePtr);
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--sparsePtr;
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REQUIRE(2 == *sparsePtr);
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auto oldMinus = sparsePtr--;
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REQUIRE(2 == *oldMinus);
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REQUIRE(0 == *sparsePtr);
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}
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THEN("Operator+ and operator-")
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{
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auto offsetTwo = sparsePtr + 2;
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REQUIRE(4 == *offsetTwo);
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auto offsetZero = offsetTwo - 2;
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REQUIRE(0 == *offsetZero);
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REQUIRE((offsetTwo - offsetZero) == 2);
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}
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}
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}
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}
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