```\nfunction testGetFundingAmountPerSizeDelta() public{\n        uint result = MarketUtils.getFundingAmountPerSizeDelta(2e15, 1e15+1, true);\n        console2.log("result: %d", result);\n        uint256 correctResult = 2e15 * 1e15 * 1e30 + 1e15; // this is a real round up\n        correctResult = correctResult/(1e15+1);\n        console2.log("correctResult: %d", correctResult);\n        assertTrue(result  == 1e15 * 1e30);\n    }\n```\n