cleanup tests

Tests/phbarTests/PHPathsTests.swift

@@ -0,0 +1,58 @@
+import Foundation
+import Testing
+
+@testable import phbar
+
+// MARK: - Config directory cascade
+//
+// `PHPaths` resolves the config root in priority order:
+//   1. $XDG_CONFIG_HOME/phbar  (only for an absolute XDG path)
+//   2. ~/.config/phbar
+//   3. ~/.phbar
+
+@Test func pathsCandidatesIncludeAbsoluteXdgFirst() {
+	let home = FileManager.default.homeDirectoryForCurrentUser
+	let candidates = PHPaths.configDirectoryCandidates(environment: ["XDG_CONFIG_HOME": "/custom/xdg"])
+
+	#expect(candidates.count == 3)
+	#expect(candidates[0].path == "/custom/xdg/phbar")
+	#expect(candidates[1].path == home.appending(path: ".config/phbar").path)
+	#expect(candidates[2].path == home.appending(path: ".phbar").path)
+}
+
+@Test func pathsCandidatesOmitRelativeXdg() {
+	let home = FileManager.default.homeDirectoryForCurrentUser
+	let candidates = PHPaths.configDirectoryCandidates(environment: ["XDG_CONFIG_HOME": "relative/path"])
+
+	#expect(candidates.count == 2)
+	#expect(candidates[0].path == home.appending(path: ".config/phbar").path)
+	#expect(candidates[1].path == home.appending(path: ".phbar").path)
+}
+
+@Test func pathsCandidatesOmitEmptyXdg() {
+	let candidates = PHPaths.configDirectoryCandidates(environment: ["XDG_CONFIG_HOME": ""])
+	#expect(candidates.count == 2)
+}
+
+@Test func pathsCandidatesOmitXdgWhenUnset() {
+	let candidates = PHPaths.configDirectoryCandidates(environment: [:])
+	#expect(candidates.count == 2)
+}
+
+@Test func pathsResolvePicksFirstExistingCandidate() throws {
+	// An existing XDG-rooted dir takes priority over ~/.config/phbar because
+	// it sorts first in the candidate list.
+	let xdgRoot = FileManager.default.temporaryDirectory.appending(path: "phbar_xdg_\(UUID().uuidString)")
+	let xdgConfig = xdgRoot.appending(path: "phbar")
+	try FileManager.default.createDirectory(at: xdgConfig, withIntermediateDirectories: true)
+	defer { try? FileManager.default.removeItem(at: xdgRoot) }
+
+	let resolved = PHPaths.resolveConfigDirectory(environment: ["XDG_CONFIG_HOME": xdgRoot.path])
+
+	#expect(resolved == xdgConfig)
+}
+
+@Test func pathsConfigDirectoryMatchesResolve() {
+	// The cached static agrees with a fresh resolve against the live process env.
+	#expect(PHPaths.configDirectory == PHPaths.resolveConfigDirectory())
+}