wehub-resource-sync
67 lines
2.7 KiB
Swift
67 lines
2.7 KiB
Swift
//===----------------------------------------------------------------------===//
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// Copyright © 2026 Apple Inc. and the Containerization project authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//===----------------------------------------------------------------------===//
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import Testing
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@testable import Containerization
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@Suite("Host default route parsing")
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struct HostDefaultRouteTests {
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// Header + one default-route row (Destination=00000000, Flags=0003 has RTF_GATEWAY=0x2).
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static let singleDefault = """
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Iface\tDestination\tGateway\tFlags\tRefCnt\tUse\tMetric\tMask\tMTU\tWindow\tIRTT
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eth0\t00000000\t0102A8C0\t0003\t0\t0\t0\t00000000\t0\t0\t0
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eth0\t0002A8C0\t00000000\t0001\t0\t0\t0\tFFFFFF00\t0\t0\t0
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"""
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static let noDefault = """
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Iface\tDestination\tGateway\tFlags\tRefCnt\tUse\tMetric\tMask\tMTU\tWindow\tIRTT
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eth0\t0002A8C0\t00000000\t0001\t0\t0\t0\tFFFFFF00\t0\t0\t0
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"""
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static let multiDefault = """
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Iface\tDestination\tGateway\tFlags\tRefCnt\tUse\tMetric\tMask\tMTU\tWindow\tIRTT
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wlan0\t00000000\t0102A8C0\t0003\t0\t0\t600\t00000000\t0\t0\t0
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eth0\t00000000\t0102A8C0\t0003\t0\t0\t100\t00000000\t0\t0\t0
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"""
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@Test("returns iface for a single default route")
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func singleDefaultRoute() {
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#expect(HostDefaultRoute.parseEgress(procNetRoute: Self.singleDefault) == "eth0")
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}
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@Test("returns nil when no default route")
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func noDefaultRoute() {
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#expect(HostDefaultRoute.parseEgress(procNetRoute: Self.noDefault) == nil)
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}
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@Test("returns lowest-metric default when multiple")
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func multipleDefaultRoutes() {
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// eth0 has metric 100; wlan0 has metric 600.
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#expect(HostDefaultRoute.parseEgress(procNetRoute: Self.multiDefault) == "eth0")
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}
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@Test("ignores rows missing RTF_GATEWAY flag")
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func noGatewayFlag() {
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// Same as singleDefault but flags=0001 (no RTF_GATEWAY=0x2).
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let input = """
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Iface\tDestination\tGateway\tFlags\tRefCnt\tUse\tMetric\tMask\tMTU\tWindow\tIRTT
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eth0\t00000000\t0102A8C0\t0001\t0\t0\t0\t00000000\t0\t0\t0
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"""
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#expect(HostDefaultRoute.parseEgress(procNetRoute: input) == nil)
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}
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}
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