feat(mac,ios,playback,store): initial macos implementation

Packages/AmphlifyKit/Tests/StoreTests/SearchTests.swift

@@ -0,0 +1,37 @@
+import Domain
+import Store
+import Testing
+
+@Test func searchRanksExactArtistFirstAndFindsTheirSongs() async {
+    let source = SourceID()
+    func id(_ remote: String) -> EntityID {
+        EntityID(source: source, remote: remote)
+    }
+    func track(_ remote: String, _ title: String, by artist: String, _ artistID: EntityID?) -> Change {
+        .upsert(.track(Track(
+            id: id(remote),
+            title: title,
+            albumID: nil,
+            albumTitle: "",
+            artistID: artistID,
+            artistName: artist,
+            duration: 1
+        )))
+    }
+    let library = MemoryLibrary()
+    await library.apply([
+        .upsert(.artist(Artist(id: id("ar-1"), name: "Kai Angel"))),
+        .upsert(.artist(Artist(id: id("ar-2"), name: "Angel Olsen"))),
+        .upsert(.album(Album(id: id("al-1"), title: "Shh...", artistID: id("ar-1"), artistName: "Kai Angel"))),
+        track("t-1", "andy warhol", by: "Kai Angel", id("ar-1")),
+        track("t-2", "Fallen Angel", by: "Other", nil),
+    ])
+
+    let exact = await library.search("kai angel")
+    #expect(exact.top.map(\.id) == [id("ar-1"), id("t-1"), id("al-1")])
+    #expect(exact.tracks.map(\.id) == [id("t-1")])
+
+    let broad = await library.search("angel")
+    #expect(broad.artists.map(\.id) == [id("ar-2"), id("ar-1")])
+    #expect(broad.tracks.map(\.id) == [id("t-2"), id("t-1")])
+}