test: drop assertions that restate the language or a fixture

Each removed assertion holds by construction and can never fail:

- jsonData() compared with itself cannot detect cross-run byte stability;
  bindAddress and mode are literal-returning computed properties
- RuleAction/RuleSourceKind allCases assertions pin synthesized enum order
  (neither allCases list is used in production); the persisted action tokens
  stay pinned by the kept rawValue assertions and source-kind tokens by
  fixture decoding through RuleSnapshotStore
- memberwise-constructor echo in RuleSourceIdentity, fixture-guaranteed
  name == id rows, a share draft field pair built from one string, and a
  local struct compared to its own assignment
- the synthesized-Codable round trip through literal JSONEncoder/JSONDecoder

The duplicate-import assertion becomes a real check: Set of node ids instead
of a count that restated roots.count, which is what its comment claims.

Co-Authored-By: DeepSeek Harness <noreply@deepseek.com>

ShadowsocksX-NG2/Tests/Catalog/CatalogTreeProjectionTests.swift

@@ -45,7 +45,6 @@ final class CatalogTreeProjectionTests: XCTestCase {
       rows.map(\.id.rawValue),
       ["root-server", "outer", "inner", "deep-leaf", "outer-leaf", "empty"])
     XCTAssertEqual(rows.map(\.depth), [0, 0, 1, 2, 1, 0])
-    XCTAssertEqual(rows.map(\.node.name), rows.map(\.id.rawValue), "行身份即节点身份")
   }
 
   func testVisibleRowsSkipCollapsedSubtrees() {

ShadowsocksX-NG2/Tests/Catalog/ConfigurationGroupExportTests.swift

@@ -274,7 +274,6 @@ struct ConfigurationGroupSharingTests {
     #expect(uris[1].pluginProgram == "missing-plugin")
     #expect(uris[1].pluginOptions == "mode=websocket;host=example.com")
     #expect(uris[1].remark == "嵌套服务器")
-    #expect(draft.uriList.data == Data(draft.uriText.utf8))
     #expect(draft.uriList.suggestedFileName == "组 根.txt")
     #expect(draft.uriList.format == .uriList)
     let node = try #require(fixture.workflow.tree.node(withID: fixture.root))

ShadowsocksX-NG2/Tests/Catalog/LegacyImportTests.swift

@@ -127,8 +127,6 @@ final class LegacyImportTests: XCTestCase {
     XCTAssertEqual(try makeTestCatalogStore(fileURL: catalogURL).load().catalog, originalCatalog)
     XCTAssertEqual(
       try ActivationStateFileStore(fileURL: activationURL).loadActiveTargetID(), originalID)
-    XCTAssertEqual(
-      originalServerFields.password, "original-password")
     XCTAssertFalse(marker.completed)
   }
 

ShadowsocksX-NG2/Tests/Catalog/Workflow/CatalogWorkflowImportTests.swift

@@ -71,7 +71,7 @@ struct CatalogWorkflowImportTests {
 
       #expect(workflow.tree.roots.count == 2)
       #expect(workflow.tree.roots.map(\.name) == ["我的机场", "我的机场 2"], "重名加序号后缀")
-      #expect(workflow.tree.roots.map(\.id).count == 2, "重复导入产生独立副本（ADR-0027）")
+      #expect(Set(workflow.tree.roots.map(\.id)).count == 2, "重复导入产生独立副本（ADR-0027）")
     }
   }
 

ShadowsocksX-NG2/Tests/Rules/ProxyRuleTests.swift

@@ -10,7 +10,6 @@ final class ProxyRuleTests: XCTestCase {
   // MARK: - 动作与匹配
 
   func testActionsAreProxyAndDirect() throws {
-    XCTAssertEqual(RuleAction.allCases, [.proxy, .direct])
     XCTAssertEqual(RuleAction.proxy.rawValue, "proxy")
     XCTAssertEqual(RuleAction.direct.rawValue, "direct")
   }
@@ -69,24 +68,6 @@ final class ProxyRuleTests: XCTestCase {
     XCTAssertThrowsError(try RuleMatch(ipv6CIDR: "gggg::/32"))
   }
 
-  // MARK: - 来源身份
-
-  func testSourceIdentityCapturesKindAndUpstream() throws {
-    let source = RuleSourceIdentity(
-      kind: .geolocationCN,
-      upstreamVersion: "20260925234224",
-      label: "geolocation-cn")
-    XCTAssertEqual(source.kind, .geolocationCN)
-    XCTAssertEqual(source.upstreamVersion, "20260925234224")
-    XCTAssertEqual(source.id, "geolocation-cn")
-  }
-
-  func testSourceKindsCoverBuiltInAndCustom() throws {
-    XCTAssertEqual(
-      RuleSourceKind.allCases,
-      [.geolocationCN, .chinaIPv4, .gfwlist, .custom])
-  }
-
   // MARK: - 规则序列化
 
   func testCustomRuleStorageKeepsFlatActionAndMatch() throws {

ShadowsocksX-NG2/Tests/Runtime/RuntimeDocumentTests.swift

@@ -69,12 +69,6 @@ final class RuntimeDocumentTests: XCTestCase {
     XCTAssertFalse(server.keys.contains("plugin_opts"))
   }
 
-  func testJSONDataIsStableAcrossEncodes() throws {
-    let document = makeDocument(plugin: "/bundle/plugins/x")
-
-    XCTAssertEqual(try document.jsonData(), try document.jsonData(), "编码确定性（sortedKeys）")
-  }
-
   // MARK: 监听设置透传
 
   func testRuntimeDocumentLeavesTimeoutAndLoggingAtUpstreamDefaults() throws {
@@ -111,7 +105,6 @@ final class RuntimeDocumentTests: XCTestCase {
       socksPort: 1086,
       httpPort: 1087)
 
-    XCTAssertEqual(listen.bindAddress, "127.0.0.1")
     XCTAssertEqual(
       listen.locals,
       [
@@ -130,7 +123,6 @@ final class RuntimeDocumentTests: XCTestCase {
       socksPort: 1086,
       httpPort: 1087)
 
-    XCTAssertEqual(listen.bindAddress, "127.0.0.1")
     XCTAssertEqual(Set(listen.locals.map(\.localAddress)), ["127.0.0.1", "0.0.0.0"])
   }
 

ShadowsocksX-NG2/Tests/Settings/ProxyListeningFileStoreTests.swift

@@ -38,7 +38,6 @@ final class ProxyListeningFileStoreTests: XCTestCase {
     try store.save(settings)
 
     XCTAssertEqual(try store.load(), settings)
-    XCTAssertEqual(try store.load().mode, "tcp_and_udp")
   }
 
   func testEncryptedListeningHasItsOwnFile() {

ShadowsocksX-NG2/Tests/Settings/ProxyRuntimeSettingsTests.swift

@@ -10,7 +10,6 @@ final class ProxyRuntimeSettingsTests: XCTestCase {
 
     XCTAssertEqual(settings.listen.socksPort, 11086)
     XCTAssertEqual(settings.listen.httpPort, 11087)
-    XCTAssertEqual(settings.listen.mode, "tcp_and_udp")
     XCTAssertFalse(settings.agentEnabled, "全新用户无服务器配置，Agent 默认 off")
     XCTAssertFalse(settings.systemProxyEnabled)
     XCTAssertTrue(settings.validationErrors.isEmpty)

ShadowsocksX-NG2/Tests/SystemProxy/SystemProxyHelperContractTests.swift

@@ -2,8 +2,8 @@ import XCTest
 
 @testable import ShadowsocksX_NG2
 
-/// helper XPC 契约测试：typed payload 往返、引擎应答编码与
-/// 串行 last-writer 语义，全部用确定性替身，不触真实 XPC 与 SystemConfiguration。
+/// helper XPC 契约测试：引擎应答编码、typed 失败归并与串行
+/// last-writer 语义，全部用确定性替身，不触真实 XPC 与 SystemConfiguration。
 final class SystemProxyHelperContractTests: XCTestCase {
   private let configuration = SystemProxyConfiguration(
     socks: .init(host: "127.0.0.1", port: 1086),
@@ -29,14 +29,7 @@ final class SystemProxyHelperContractTests: XCTestCase {
     }
   }
 
-  func testConfigurationPayloadRoundTripsThroughJSON() throws {
-    let payload = try SystemProxyHelperWire.encodeConfiguration(configuration)
-    let decoded = try SystemProxyHelperWire.decodeConfiguration(payload)
-    XCTAssertEqual(decoded, configuration)
-  }
-
   func testEngineAnswersApplyWithTypedOutcome() throws {
-    let requested = try SystemProxyHelperWire.encodeConfiguration(configuration)
     let observed = LockedArray<SystemProxyHelperEngine.Request>()
     let response = SystemProxyHelperEngine.response(
       request: .success(.apply(configuration)),
@@ -47,9 +40,6 @@ final class SystemProxyHelperContractTests: XCTestCase {
 
     XCTAssertEqual(observed.all, [.apply(configuration)], "helper 收到 closed typed 配置")
     XCTAssertEqual(response, .applied(.written))
-    XCTAssertEqual(
-      try SystemProxyHelperWire.decodeConfiguration(requested), configuration,
-      "payload 与配置一致")
   }
 
   func testEngineAnswersClearWithTypedOutcome() {