53 lines
1.6 KiB
Swift
53 lines
1.6 KiB
Swift
import Testing
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@testable import Clawdis
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#if canImport(Darwin)
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import Darwin
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@Suite struct WebChatTunnelTests {
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@Test func portIsFreeDetectsIPv4Listener() {
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var fd = socket(AF_INET, SOCK_STREAM, 0)
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#expect(fd >= 0)
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guard fd >= 0 else { return }
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defer {
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if fd >= 0 { _ = Darwin.close(fd) }
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}
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var one: Int32 = 1
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_ = setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &one, socklen_t(MemoryLayout.size(ofValue: one)))
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var addr = sockaddr_in()
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addr.sin_len = UInt8(MemoryLayout<sockaddr_in>.size)
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addr.sin_family = sa_family_t(AF_INET)
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addr.sin_port = 0
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addr.sin_addr = in_addr(s_addr: inet_addr("127.0.0.1"))
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let bound = withUnsafePointer(to: &addr) { ptr in
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ptr.withMemoryRebound(to: sockaddr.self, capacity: 1) { sa in
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Darwin.bind(fd, sa, socklen_t(MemoryLayout<sockaddr_in>.size))
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}
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}
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#expect(bound == 0)
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guard bound == 0 else { return }
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#expect(Darwin.listen(fd, 1) == 0)
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var name = sockaddr_in()
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var nameLen = socklen_t(MemoryLayout<sockaddr_in>.size)
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let got = withUnsafeMutablePointer(to: &name) { ptr in
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ptr.withMemoryRebound(to: sockaddr.self, capacity: 1) { sa in
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getsockname(fd, sa, &nameLen)
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}
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}
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#expect(got == 0)
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guard got == 0 else { return }
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let port = UInt16(bigEndian: name.sin_port)
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#expect(WebChatTunnel._testPortIsFree(port) == false)
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_ = Darwin.close(fd)
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fd = -1
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#expect(WebChatTunnel._testPortIsFree(port) == true)
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}
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}
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#endif
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