allocator_sanity.swift

// RUN: %target-run-simple-swiftgyb

// REQUIRES: executable_test
// UNSUPPORTED: use_os_stdlib
// UNSUPPORTED: back_deployment_runtime

import StdlibUnittest

varAllocationsTestSuite=TestSuite("Allocations")

AllocationsTestSuite.test("absurd.allocation.misaligned"){
expectCrashLater()
letmustFail=UnsafeMutableRawPointer.allocate(byteCount:1024,
 alignment:19)
expectUnreachable()
 _ = mustFail
}

AllocationsTestSuite.test("absurd.allocation.gargantuan"){
expectCrashLater()
 // There is a chance that we'll actually be able to allocate Int.max bytes on
 // 32-bit platforms, since they often have 4GB address spaces and Int.max is
 // 2GB minus one byte. Allocate twice to ensure failure. That will (attempt
 // to) allocate 4GB minus two bytes, and we'll definitely have more than two
 // bytes of other stuff in the process.
letmustFail=UnsafeMutableRawPointer.allocate(byteCount:Int.max,
 alignment:0)
letmustFail2=UnsafeMutableRawPointer.allocate(byteCount:Int.max,
 alignment:0)
expectUnreachable()
 _ = mustFail
 _ = mustFail2
}

runAllTests()