Integration test to make sure search exclusion works

Author: award999

assets/test/.vscode/settings.json

@@ -10,5 +10,8 @@
     "lldb.verboseLogging": true,
     "lldb.launch.terminal": "external",
     "lldb-dap.detachOnError": true,
-    "swift.sourcekit-lsp.backgroundIndexing": "off"
+    "swift.sourcekit-lsp.backgroundIndexing": "off",
+    "swift.exclude": {
+        "**/excluded": true
+    }
 }

assets/test/excluded/Package.swift

@@ -0,0 +1,15 @@
+// swift-tools-version: 5.6
+// The swift-tools-version declares the minimum version of Swift required to build this package.
+
+import PackageDescription
+
+let package = Package(
+    name: "excluded",
+    products: [
+        .library(name: "excluded", targets: ["excluded"]),
+    ],
+    dependencies: [],
+    targets: [
+        .target(name: "excluded"),
+    ]
+)

assets/test/excluded/Sources/excluded/excluded.swift

@@ -0,0 +1,6 @@
+public struct excluded {
+    public private(set) var text = "Hello, World!"
+
+    public init() {
+    }
+}

test/integration-tests/utilities/workspace.test.ts

@@ -0,0 +1,32 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the VS Code Swift open source project
+//
+// Copyright (c) 2024 the VS Code Swift project authors
+// Licensed under Apache License v2.0
+//
+// See LICENSE.txt for license information
+// See CONTRIBUTORS.txt for the list of VS Code Swift project authors
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+//===----------------------------------------------------------------------===//
+
+import * as vscode from "vscode";
+import { searchForPackages } from "../../../src/utilities/workspace";
+import { expect } from "chai";
+
+suite("Workspace Utilities Test Suite", () => {
+    suite("searchForPackages", () => {
+        test("ignores excluded file", async () => {
+            const folders = await searchForPackages(
+                (vscode.workspace.workspaceFolders ?? [])[0]!.uri,
+                false,
+                true
+            );
+
+            expect(folders.find(f => f.fsPath.includes("defaultPackage"))).to.not.be.undefined;
+            expect(folders.find(f => f.fsPath.includes("excluded"))).to.be.undefined;
+        });
+    });
+});