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// RUN: %target-run-simple-swift(-I %S/Inputs/ -Xfrontend -enable-experimental-cxx-interop)
//
// REQUIRES: executable_test
import StdlibUnittest
import Constructors
var CxxConstructorTestSuite = TestSuite("CxxConstructors")
CxxConstructorTestSuite.test("ExplicitDefaultConstructor") {
let instance = ExplicitDefaultConstructor()
expectEqual(42, instance.x)
}
CxxConstructorTestSuite.test("ImplicitDefaultConstructor") {
let instance = ImplicitDefaultConstructor()
expectEqual(42, instance.x)
}
CxxConstructorTestSuite.test("DefaultedDefaultConstructor") {
let instance = DefaultedDefaultConstructor()
expectEqual(42, instance.x)
}
CxxConstructorTestSuite.test("MemberOfClassType") {
let instance = MemberOfClassType()
expectEqual(42, instance.member.x)
}
CxxConstructorTestSuite.test("ConstructorWithParam") {
let instance = ConstructorWithParam(2)
expectEqual(44, instance.x)
}
CxxConstructorTestSuite.test("TemplatedConstructor") {
let arg = ArgType(i: 2)
let instance = TemplatedConstructor(arg)
expectEqual(2, instance.value.i)
}
CxxConstructorTestSuite.test("implicit default ctor") {
// Make sure that fields of C++ structs are zeroed out.
let instance1 = ConstructorWithParam()
expectEqual(0, instance1.x)
let instance2 = IntWrapper()
expectEqual(0, instance2.x)
// CopyAndMoveConstructor is not default-initializable in C++, however, Swift
// generates an implicit deprecated default constructor for C++ structs for
// compatibility with C. This constructor will zero out the entire backing
// memory of the struct, including fields that have an init expression.
// See `SwiftDeclSynthesizer::createDefaultConstructor`.
let instance3 = CopyAndMoveConstructor()
expectEqual(0, instance3.value)
expectNil(instance3.ptr)
}
runAllTests()
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