Initial commit.

2026-08-19 23:19:08 +02:00
commit 22e737d9c2
153 changed files with 11680 additions and 0 deletions
@@ -0,0 +1,134 @@
+import Foundation
+import Testing
+
+@testable import Localization
+
+@Suite(
+    "Localize method",
+    .tags(.method)
+)
+struct LocalizeTests {
+    
+    // MARK: Constants
+    
+    private let localize = Localize(bundle: .module)
+
+    // MARK: Functional tests
+
+    @Test
+    func `resolves a key in the default locale`() {
+        let text = localize(
+            "test.greeting",
+            locale: Locale(identifier: "en")
+        )
+
+        #expect(text == "Hello")
+    }
+
+    @Test
+    func `resolves a key in another locale`() {
+        let text = localize(
+            "test.greeting",
+            locale: Locale(identifier: "de"),
+        )
+
+        #expect(text == "Hallo")
+    }
+
+    @Test
+    func `resolves a key in a regional locale`() {
+        let text = localize(
+            "test.greeting",
+            locale: Locale(identifier: "pt-BR"),
+        )
+
+        #expect(text == "Olá")
+    }
+
+    @Test
+    func `falls back to the primary language for an unmatched regional locale`() {
+        let text = localize(
+            "test.greeting",
+            locale: Locale(identifier: "de-AT"),
+        )
+
+        #expect(text == "Hallo")
+    }
+
+    @Test
+    func `falls back to the source language for an unsupported locale`() {
+        let text = localize(
+            "test.greeting",
+            locale: Locale(identifier: "fr"),
+        )
+
+        #expect(text == "Hello")
+    }
+
+    @Test
+    func `falls back to the key for an unknown entry`() {
+        let text = localize(
+            "unknown.key",
+            locale: Locale(identifier: "en"),
+        )
+
+        #expect(text == "unknown.key")
+    }
+
+    @Test
+    func `falls back to the key for a missing catalog`() {
+        let localize = Localize(bundle: .main)
+
+        let text = localize(
+            "test.greeting",
+            locale: Locale(identifier: "en")
+        )
+
+        #expect(text == "test.greeting")
+    }
+
+    // MARK: Properties tests
+
+    @Test
+    func `reports a loaded catalog`() {
+        #expect(localize.catalogState == .loaded)
+    }
+
+    @Test
+    func `reports a missing catalog`() {
+        let localize = Localize(bundle: .main)
+
+        #expect(localize.catalogState == .missing)
+    }
+
+    // A malformed catalog cannot ship as a test resource — Xcode generates string symbols for every
+    // bundled `.xcstrings` and fails the build on invalid JSON — so one is staged in a temporary
+    // directory bundle instead.
+    @Test
+    func `reports an undecodable catalog`() throws {
+        let directory = URL(fileURLWithPath: NSTemporaryDirectory())
+            .appendingPathComponent(
+                "UndecodableCatalog-\(UUID().uuidString)",
+                isDirectory: true
+            )
+
+        try FileManager.default.createDirectory(
+            at: directory,
+            withIntermediateDirectories: true
+        )
+
+        defer {
+            try? FileManager.default.removeItem(at: directory)
+        }
+
+        try Data("not a catalog".utf8).write(
+            to: directory.appendingPathComponent("Localizable.xcstrings")
+        )
+
+        let bundle = try #require(Bundle(url: directory))
+        let localize = Localize(bundle: bundle)
+
+        #expect(localize.catalogState == .undecodable)
+    }
+
+}