Cleaned up test code files.

JSMR.Tests/Search/VoiceWork/VoiceWorkSearchProviderFixture.cs

@@ -0,0 +1,98 @@
+using JSMR.Domain.Enums;
+using JSMR.Infrastructure.Data;
+using JSMR.Tests.Fixtures;
+
+namespace JSMR.Tests.Search.VoiceWork;
+
+public sealed class VoiceWorkSearchProviderFixture(MariaDbContainerFixture container) : SearchProviderFixture(container)
+{
+    protected override async Task SeedAsync(AppDbContext context)
+    {
+        context.Circles.AddRange(
+            new() { CircleId = 1, Name = "Good Dreams", MakerId = "RG00001" },
+            new() { CircleId = 2, Name = "Sweet Dreams", Favorite = true, MakerId = "RG00002" },
+            new() { CircleId = 3, Name = "Nightmare Fuel", Blacklisted = true, MakerId = "RG00003" }
+        );
+
+        context.VoiceWorks.AddRange(
+            new() { VoiceWorkId = 1, CircleId = 1, ProductId = "RJ0000001", ProductName = "Today Sounds", Description = "An average product.", Status = (byte)VoiceWorkStatus.Available, SalesDate = new(2025, 1, 1), Downloads = 500, WishlistCount = 750, StarRating = 35 },
+            new() { VoiceWorkId = 2, CircleId = 2, ProductId = "RJ0000002", ProductName = "Super Comfy ASMR", Description = "An amazing product!", Status = (byte)VoiceWorkStatus.NewRelease, SalesDate = new(2025, 1, 3), Downloads = 5000, WishlistCount = 12000, StarRating = 50, Favorite = true },
+            new() { VoiceWorkId = 3, CircleId = 3, ProductId = "RJ0000003", ProductName = "Low Effort", Description = "A bad product.", Status = (byte)VoiceWorkStatus.Available, SalesDate = new(2025, 1, 2), Downloads = 50, WishlistCount = 100, StarRating = 20 },
+            new() { VoiceWorkId = 4, CircleId = 1, ProductId = "RJ0000004", ProductName = "Tomorrow Sounds", Description = "A average upcoming product.", Status = (byte)VoiceWorkStatus.Upcoming, ExpectedDate = new(2025, 1, 1), WishlistCount = 300 },
+            new() { VoiceWorkId = 5, CircleId = 2, ProductId = "RJ0000005", ProductName = "Super Comfy ASMR+", Description = "All your favorite sounds, plus more!", Status = (byte)VoiceWorkStatus.NewAndUpcoming, ExpectedDate = new(2025, 1, 11), WishlistCount = 10000 }
+        );
+
+        context.Tags.AddRange(
+           new() { TagId = 1, Name = "ASMR" },
+           new() { TagId = 2, Name = "OL" },
+           new() { TagId = 3, Name = "ほのぼの" },
+           new() { TagId = 4, Name = "エルフ/妖精" },
+           new() { TagId = 5, Name = "ツンデレ", Favorite = true },
+           new() { TagId = 6, Name = "オールハッピー" },
+           new() { TagId = 7, Name = "ギャル" },
+           new() { TagId = 8, Name = "メイド" },
+           new() { TagId = 9, Name = "ノンフィクション/体験談", Blacklisted = true }
+        );
+
+        context.EnglishTags.AddRange(
+           new() { EnglishTagId = 1, TagId = 1, Name = "ASMR" },
+           new() { EnglishTagId = 2, TagId = 2, Name = "Office Lady" },
+           new() { EnglishTagId = 3, TagId = 3, Name = "Heartwarming" },
+           new() { EnglishTagId = 4, TagId = 4, Name = "Elf / Fairy" },
+           new() { EnglishTagId = 5, TagId = 5, Name = "Tsundere" },
+           new() { EnglishTagId = 6, TagId = 6, Name = "All Happy" },
+           new() { EnglishTagId = 7, TagId = 7, Name = "Gal" },
+           new() { EnglishTagId = 8, TagId = 8, Name = "Maid" },
+           new() { EnglishTagId = 9, TagId = 9, Name = "Non-Fiction / Narrative" }
+        );
+
+        context.VoiceWorkTags.AddRange(
+           new() { VoiceWorkId = 1, TagId = 1 }, // ASMR
+           new() { VoiceWorkId = 1, TagId = 2 }, // Office Lady
+
+           new() { VoiceWorkId = 2, TagId = 1 }, // ASMR
+           new() { VoiceWorkId = 2, TagId = 3 }, // Heartwarming
+           new() { VoiceWorkId = 2, TagId = 4 }, // Elf / Fairy
+           new() { VoiceWorkId = 2, TagId = 5 }, // Tsundere
+           new() { VoiceWorkId = 2, TagId = 6 }, // All Happy
+           new() { VoiceWorkId = 2, TagId = 7 }, // Gal
+           new() { VoiceWorkId = 2, TagId = 8 }, // Maid
+
+           new() { VoiceWorkId = 3, TagId = 5 }, // Tsundere
+           new() { VoiceWorkId = 3, TagId = 9 }  // Non-Fiction / Narrative
+        );
+
+        context.Creators.AddRange(
+            new() { CreatorId = 1, Name = "陽向葵ゅか", Favorite = true },
+            new() { CreatorId = 2, Name = "秋野かえで" },
+            new() { CreatorId = 3, Name = "柚木つばめ" },
+            new() { CreatorId = 4, Name = "逢坂成美" },
+            new() { CreatorId = 5, Name = "山田じぇみ子", Blacklisted = true }
+        );
+
+        context.VoiceWorkCreators.AddRange(
+            new() { VoiceWorkId = 1, CreatorId = 2 }, // 秋野かえで
+
+            new() { VoiceWorkId = 2, CreatorId = 1 }, // 陽向葵ゅか
+
+            new() { VoiceWorkId = 3, CreatorId = 5 }, // 山田じぇみ子
+            new() { VoiceWorkId = 3, CreatorId = 1 }, // 陽向葵ゅか
+
+            new() { VoiceWorkId = 4, CreatorId = 3 }, // 柚木つばめ
+
+            new() { VoiceWorkId = 5, CreatorId = 1 }, // 陽向葵ゅか
+            new() { VoiceWorkId = 5, CreatorId = 4 }  // 逢坂成美
+        );
+
+        // <Product Id> <Maker Id> <Circle Name> <Product Name> <Product Description> <Tags> <Creators>
+        context.VoiceWorkSearches.AddRange(
+            new() { VoiceWorkId = 1, SearchText = "RJ0000001 RG00001 Good Dreams Today Sounds An average product. ASMR Office Lady" },
+            new() { VoiceWorkId = 2, SearchText = "RJ0000002 RG00002 Sweet Dreams Super Comfy ASMR An amazing product! ASMR Heartwarming Elf / Fairy Tsundere All Happy Gal Maid" },
+            new() { VoiceWorkId = 3, SearchText = "RJ0000003 RG00003 Nightmare Fuel Low Effort A bad product." },
+            new() { VoiceWorkId = 4, SearchText = "RJ0000004 RG00001 Good Dreams Tomorrow Sounds A average upcoming product." },
+            new() { VoiceWorkId = 5, SearchText = "RJ0000005 RG00002 Sweet Dreams Super Comfy ASMR+ All your favorite sounds, plus more!" }
+        );
+
+        await context.SaveChangesAsync();
+    }
+}

JSMR.Tests/Search/VoiceWork/VoiceWorkSearchProviderTests.cs

@@ -0,0 +1,628 @@
+using JSMR.Application.Common.Search;
+using JSMR.Application.VoiceWorks.Queries.Search;
+using JSMR.Infrastructure.Data;
+using JSMR.Infrastructure.Data.Repositories.VoiceWorks;
+using Shouldly;
+using SortDirection = JSMR.Application.Common.Search.SortDirection;
+
+namespace JSMR.Tests.Search.VoiceWork;
+
+public class VoiceWorkSearchProviderTests(VoiceWorkSearchProviderFixture fixture) : IClassFixture<VoiceWorkSearchProviderFixture>
+{
+    private async Task<SearchResult<VoiceWorkSearchResult>> SearchAsync(SearchOptions<VoiceWorkSearchCriteria, VoiceWorkSortField> options)
+    {
+        AppDbContext context = fixture.DbContext!;
+        MySqlVoiceWorkFullTextSearch fullTextSearch = new();
+        VoiceWorkSearchProvider provider = new(context, fullTextSearch);
+
+        return await provider.SearchAsync(options, TestContext.Current.CancellationToken);
+    }
+
+    [Fact]
+    public async Task Filter_Default()
+    {
+        var options = new SearchOptions<VoiceWorkSearchCriteria, VoiceWorkSortField>()
+        {
+            Criteria = new()
+            {
+                SaleStatus = SaleStatus.Available,
+                CircleStatus = CircleStatus.NotBlacklisted
+            }
+        };
+
+        var result = await SearchAsync(options);
+
+        result.Items.Length.ShouldBe(2);
+        result.TotalItems.ShouldBe(2);
+        result.Items.ShouldAllBe(item => item.SalesDate != null);
+        result.Items.ShouldNotContain(item => item.ExpectedDate != null);
+    }
+
+    [Fact]
+    public async Task Filter_Upcoming_Favorite()
+    {
+        var options = new SearchOptions<VoiceWorkSearchCriteria, VoiceWorkSortField>()
+        {
+            Criteria = new()
+            {
+                SaleStatus = SaleStatus.Upcoming,
+                CircleStatus = CircleStatus.Favorited
+            }
+        };
+
+        var result = await SearchAsync(options);
+
+        result.Items.Length.ShouldBe(1);
+        result.TotalItems.ShouldBe(1);
+        result.Items.ShouldAllBe(item => item.ExpectedDate != null);
+        result.Items.ShouldNotContain(item => item.SalesDate != null);
+    }
+
+    [Fact]
+    public async Task Filter_Availble_Blacklisted()
+    {
+        var options = new SearchOptions<VoiceWorkSearchCriteria, VoiceWorkSortField>()
+        {
+            Criteria = new()
+            {
+                SaleStatus = SaleStatus.Available,
+                CircleStatus = CircleStatus.Blacklisted
+            }
+        };
+
+        var result = await SearchAsync(options);
+
+        result.Items.Length.ShouldBe(1);
+        result.TotalItems.ShouldBe(1);
+        result.Items.ShouldAllBe(item => item.SalesDate != null);
+        result.Items.ShouldNotContain(item => item.ExpectedDate != null);
+    }
+
+    [Fact]
+    public async Task Filter_Keywords_Basic()
+    {
+        var options = new SearchOptions<VoiceWorkSearchCriteria, VoiceWorkSortField>()
+        {
+            Criteria = new()
+            {
+                Keywords = "ASMR"
+            }
+        };
+
+        var result = await SearchAsync(options);
+
+        result.Items.Length.ShouldBe(3);
+        result.TotalItems.ShouldBe(3);
+        result.Items.ShouldAllBe(item => item.Tags.Any(tag => tag.Name == "ASMR") || item.ProductName.Contains("ASMR") || (item.Description ?? string.Empty).Contains("ASMR"));
+    }
+
+    [Fact]
+    public async Task Filter_Keywords_Not_Good()
+    {
+        var options = new SearchOptions<VoiceWorkSearchCriteria, VoiceWorkSortField>()
+        {
+            Criteria = new()
+            {
+                Keywords = "ASMR -Good"
+            }
+        };
+
+        var result = await SearchAsync(options);
+
+        result.Items.Length.ShouldBe(2);
+        result.TotalItems.ShouldBe(2);
+        result.Items.ShouldAllBe(item => item.Tags.Any(tag => tag.Name == "ASMR") || item.ProductName.Contains("ASMR") || (item.Description ?? string.Empty).Contains("ASMR"));
+        result.Items.ShouldAllBe(item => !item.Tags.Any(tag => tag.Name == "Good") || !item.ProductName.Contains("Good") || !(item.Description ?? string.Empty).Contains("Good"));
+    }
+
+    [Fact]
+    public async Task Filter_Keywords_Dreams_And_Amazing_Or_Favorite()
+    {
+        var options = new SearchOptions<VoiceWorkSearchCriteria, VoiceWorkSortField>()
+        {
+            Criteria = new()
+            {
+                Keywords = "Dreams + (Amazing|Favorite)"
+            }
+        };
+
+        var result = await SearchAsync(options);
+
+        result.Items.Length.ShouldBe(2);
+        result.TotalItems.ShouldBe(2);
+
+        result.Items
+            .OrderBy(item => item.ProductId)
+            .Select(item => item.ProductId)
+            .ShouldBe(["RJ0000002", "RJ0000005"]);
+    }
+
+    [Fact]
+    public async Task Filter_Keywords_Phrase_Search()
+    {
+        var options = new SearchOptions<VoiceWorkSearchCriteria, VoiceWorkSortField>()
+        {
+            Criteria = new()
+            {
+                Keywords = "\"All Your Favorite\""
+            }
+        };
+
+        var result = await SearchAsync(options);
+
+        result.Items.Length.ShouldBe(1);
+        result.TotalItems.ShouldBe(1);
+        result.Items.ShouldAllBe(item => (item.Description ?? string.Empty).Contains("All Your Favorite", StringComparison.OrdinalIgnoreCase));
+    }
+
+    [Fact]
+    public async Task Filter_Tags_Favorite_Exclude_Blacklisted()
+    {
+        var options = new SearchOptions<VoiceWorkSearchCriteria, VoiceWorkSortField>()
+        {
+            Criteria = new()
+            {
+                TagStatus = TagStatus.FavoriteExcludeBlacklist
+            }
+        };
+
+        var result = await SearchAsync(options);
+
+        result.Items.Length.ShouldBe(1);
+        result.TotalItems.ShouldBe(1);
+
+        result.Items
+           .OrderBy(item => item.ProductId)
+           .Select(item => item.ProductId)
+           .ShouldBe(["RJ0000002"]);
+    }
+
+    [Fact]
+    public async Task Filter_Tags_Favorite_Include_Blacklisted()
+    {
+        var options = new SearchOptions<VoiceWorkSearchCriteria, VoiceWorkSortField>()
+        {
+            Criteria = new()
+            {
+                TagStatus = TagStatus.FavoriteIncludeBlacklist
+            }
+        };
+
+        var result = await SearchAsync(options);
+
+        result.Items.Length.ShouldBe(2);
+        result.TotalItems.ShouldBe(2);
+
+        result.Items
+           .OrderBy(item => item.ProductId)
+           .Select(item => item.ProductId)
+           .ShouldBe(["RJ0000002", "RJ0000003"]);
+    }
+
+    [Fact]
+    public async Task Filter_Tags_Not_Blacklisted()
+    {
+        var options = new SearchOptions<VoiceWorkSearchCriteria, VoiceWorkSortField>()
+        {
+            Criteria = new()
+            {
+                TagStatus = TagStatus.NotBlacklisted
+            }
+        };
+
+        var result = await SearchAsync(options);
+
+        result.Items.Length.ShouldBe(4);
+        result.TotalItems.ShouldBe(4);
+
+        result.Items
+           .OrderBy(item => item.ProductId)
+           .Select(item => item.ProductId)
+           .ShouldBe(["RJ0000001", "RJ0000002", "RJ0000004", "RJ0000005"]);
+    }
+
+    [Fact]
+    public async Task Filter_Tags_Blacklisted()
+    {
+        var options = new SearchOptions<VoiceWorkSearchCriteria, VoiceWorkSortField>()
+        {
+            Criteria = new()
+            {
+                TagStatus = TagStatus.Blacklisted
+            }
+        };
+
+        var result = await SearchAsync(options);
+
+        result.Items.Length.ShouldBe(1);
+        result.TotalItems.ShouldBe(1);
+
+        result.Items
+           .OrderBy(item => item.ProductId)
+           .Select(item => item.ProductId)
+           .ShouldBe(["RJ0000003"]);
+    }
+
+    [Fact]
+    public async Task Filter_TagIds_Or()
+    {
+        var options = new SearchOptions<VoiceWorkSearchCriteria, VoiceWorkSortField>()
+        {
+            Criteria = new()
+            {
+                TagIds = [1,2],
+                IncludeAllTags = false
+            }
+        };
+
+        var result = await SearchAsync(options);
+
+        result.Items.Length.ShouldBe(2);
+        result.TotalItems.ShouldBe(2);
+
+        result.Items
+           .OrderBy(item => item.ProductId)
+           .Select(item => item.ProductId)
+           .ShouldBe(["RJ0000001", "RJ0000002"]);
+    }
+
+    [Fact]
+    public async Task Filter_TagIds_And()
+    {
+        var options = new SearchOptions<VoiceWorkSearchCriteria, VoiceWorkSortField>()
+        {
+            Criteria = new()
+            {
+                TagIds = [1, 2],
+                IncludeAllTags = true
+            }
+        };
+
+        var result = await SearchAsync(options);
+
+        result.Items.Length.ShouldBe(1);
+        result.TotalItems.ShouldBe(1);
+
+        result.Items
+           .OrderBy(item => item.ProductId)
+           .Select(item => item.ProductId)
+           .ShouldBe(["RJ0000001"]);
+    }
+
+    [Fact]
+    public async Task Filter_Creators_Favorite_Exclude_Blacklisted()
+    {
+        var options = new SearchOptions<VoiceWorkSearchCriteria, VoiceWorkSortField>()
+        {
+            Criteria = new()
+            {
+                CreatorStatus = CreatorStatus.FavoriteExcludeBlacklist
+            }
+        };
+
+        var result = await SearchAsync(options);
+
+        result.Items.Length.ShouldBe(2);
+        result.TotalItems.ShouldBe(2);
+
+        result.Items
+           .OrderBy(item => item.ProductId)
+           .Select(item => item.ProductId)
+           .ShouldBe(["RJ0000002", "RJ0000005"]);
+    }
+
+    [Fact]
+    public async Task Filter_Creators_Favorite_Include_Blacklisted()
+    {
+        var options = new SearchOptions<VoiceWorkSearchCriteria, VoiceWorkSortField>()
+        {
+            Criteria = new()
+            {
+                CreatorStatus = CreatorStatus.FavoriteIncludeBlacklist
+            }
+        };
+
+        var result = await SearchAsync(options);
+
+        result.Items.Length.ShouldBe(3);
+        result.TotalItems.ShouldBe(3);
+
+        result.Items
+           .OrderBy(item => item.ProductId)
+           .Select(item => item.ProductId)
+           .ShouldBe(["RJ0000002", "RJ0000003", "RJ0000005"]);
+    }
+
+    [Fact]
+    public async Task Filter_Creators_Not_Blacklisted()
+    {
+        var options = new SearchOptions<VoiceWorkSearchCriteria, VoiceWorkSortField>()
+        {
+            Criteria = new()
+            {
+                CreatorStatus = CreatorStatus.NotBlacklisted
+            }
+        };
+
+        var result = await SearchAsync(options);
+
+        result.Items.Length.ShouldBe(4);
+        result.TotalItems.ShouldBe(4);
+
+        result.Items
+           .OrderBy(item => item.ProductId)
+           .Select(item => item.ProductId)
+           .ShouldBe(["RJ0000001", "RJ0000002", "RJ0000004", "RJ0000005"]);
+    }
+
+    [Fact]
+    public async Task Filter_Creators_Blacklisted()
+    {
+        var options = new SearchOptions<VoiceWorkSearchCriteria, VoiceWorkSortField>()
+        {
+            Criteria = new()
+            {
+                CreatorStatus = CreatorStatus.Blacklisted
+            }
+        };
+
+        var result = await SearchAsync(options);
+
+        result.Items.Length.ShouldBe(1);
+        result.TotalItems.ShouldBe(1);
+
+        result.Items
+           .OrderBy(item => item.ProductId)
+           .Select(item => item.ProductId)
+           .ShouldBe(["RJ0000003"]);
+    }
+
+    [Fact]
+    public async Task Filter_CreatorIds_Or()
+    {
+        var options = new SearchOptions<VoiceWorkSearchCriteria, VoiceWorkSortField>()
+        {
+            Criteria = new()
+            {
+                CreatorIds = [1, 4],
+                IncludeAllCreators = false
+            }
+        };
+
+        var result = await SearchAsync(options);
+
+        result.Items.Length.ShouldBe(3);
+        result.TotalItems.ShouldBe(3);
+
+        result.Items
+           .OrderBy(item => item.ProductId)
+           .Select(item => item.ProductId)
+           .ShouldBe(["RJ0000002", "RJ0000003", "RJ0000005"]);
+    }
+
+    [Fact]
+    public async Task Filter_CreatorIds_And()
+    {
+        var options = new SearchOptions<VoiceWorkSearchCriteria, VoiceWorkSortField>()
+        {
+            Criteria = new()
+            {
+                CreatorIds = [1, 4],
+                IncludeAllCreators = true
+            }
+        };
+
+        var result = await SearchAsync(options);
+
+        result.Items.Length.ShouldBe(1);
+        result.TotalItems.ShouldBe(1);
+
+        result.Items
+           .OrderBy(item => item.ProductId)
+           .Select(item => item.ProductId)
+           .ShouldBe(["RJ0000005"]);
+    }
+
+    [Fact]
+    public async Task Sort_By_Release_Date_Ascending()
+    {
+        var options = new SearchOptions<VoiceWorkSearchCriteria, VoiceWorkSortField>()
+        {
+            SortOptions =
+            [
+                new(VoiceWorkSortField.ReleaseDate, SortDirection.Ascending)
+            ]
+        };
+
+        var result = await SearchAsync(options);
+
+        result.Items
+           .Select(item => item.ProductId)
+           .ShouldBe(["RJ0000001", "RJ0000004", "RJ0000003", "RJ0000002", "RJ0000005"]);
+    }
+
+    [Fact]
+    public async Task Sort_By_Release_Date_Descending()
+    {
+        var options = new SearchOptions<VoiceWorkSearchCriteria, VoiceWorkSortField>()
+        {
+            SortOptions =
+            [
+                new(VoiceWorkSortField.ReleaseDate, SortDirection.Descending)
+            ]
+        };
+
+        var result = await SearchAsync(options);
+
+        result.Items
+           .Select(item => item.ProductId)
+           .ShouldBe(["RJ0000005", "RJ0000002", "RJ0000003", "RJ0000001", "RJ0000004"]);
+    }
+
+    [Fact]
+    public async Task Sort_By_Downloads_Ascending()
+    {
+        var options = new SearchOptions<VoiceWorkSearchCriteria, VoiceWorkSortField>()
+        {
+            SortOptions =
+            [
+                new(VoiceWorkSortField.Downloads, SortDirection.Ascending)
+            ]
+        };
+
+        var result = await SearchAsync(options);
+
+        result.Items
+           .Select(item => item.ProductId)
+           .ShouldBe(["RJ0000004", "RJ0000005", "RJ0000003", "RJ0000001", "RJ0000002"]);
+    }
+
+    [Fact]
+    public async Task Sort_By_Downloads_Descending()
+    {
+        var options = new SearchOptions<VoiceWorkSearchCriteria, VoiceWorkSortField>()
+        {
+            SortOptions =
+            [
+                new(VoiceWorkSortField.Downloads, SortDirection.Descending)
+            ]
+        };
+
+        var result = await SearchAsync(options);
+
+        result.Items
+           .Select(item => item.ProductId)
+           .ShouldBe(["RJ0000002", "RJ0000001", "RJ0000003", "RJ0000004", "RJ0000005"]);
+    }
+
+    [Fact]
+    public async Task Sort_By_WishlistCount_Ascending()
+    {
+        var options = new SearchOptions<VoiceWorkSearchCriteria, VoiceWorkSortField>()
+        {
+            SortOptions =
+            [
+                new(VoiceWorkSortField.WishlistCount, SortDirection.Ascending)
+            ]
+        };
+
+        var result = await SearchAsync(options);
+
+        result.Items
+           .Select(item => item.ProductId)
+           .ShouldBe(["RJ0000003", "RJ0000004", "RJ0000001", "RJ0000005", "RJ0000002"]);
+    }
+
+    [Fact]
+    public async Task Sort_By_WishlistCount_Descending()
+    {
+        var options = new SearchOptions<VoiceWorkSearchCriteria, VoiceWorkSortField>()
+        {
+            SortOptions =
+            [
+                new(VoiceWorkSortField.WishlistCount, SortDirection.Descending)
+            ]
+        };
+
+        var result = await SearchAsync(options);
+
+        result.Items
+           .Select(item => item.ProductId)
+           .ShouldBe(["RJ0000002", "RJ0000005", "RJ0000001", "RJ0000004", "RJ0000003"]);
+    }
+
+    [Fact]
+    public async Task Sort_By_StarRating_Ascending()
+    {
+        var options = new SearchOptions<VoiceWorkSearchCriteria, VoiceWorkSortField>()
+        {
+            SortOptions =
+            [
+                new(VoiceWorkSortField.StarRating, SortDirection.Ascending)
+            ]
+        };
+
+        var result = await SearchAsync(options);
+
+        result.Items
+           .Select(item => item.ProductId)
+           .ShouldBe(["RJ0000004", "RJ0000005", "RJ0000003", "RJ0000001", "RJ0000002"]);
+    }
+
+    [Fact]
+    public async Task Sort_By_StarRating_Descending()
+    {
+        var options = new SearchOptions<VoiceWorkSearchCriteria, VoiceWorkSortField>()
+        {
+            SortOptions =
+            [
+                new(VoiceWorkSortField.StarRating, SortDirection.Descending)
+            ]
+        };
+
+        var result = await SearchAsync(options);
+
+        result.Items
+           .Select(item => item.ProductId)
+           .ShouldBe(["RJ0000002", "RJ0000001", "RJ0000003", "RJ0000004", "RJ0000005"]);
+    }
+
+    [Fact]
+    public async Task Filter_Release_Date_Range()
+    {
+        var options = new SearchOptions<VoiceWorkSearchCriteria, VoiceWorkSortField>()
+        {
+            Criteria = new()
+            {
+                ReleaseDateStart = new DateOnly(2025, 1, 1),
+                ReleaseDateEnd = new DateOnly(2025, 1, 2)
+            }
+        };
+
+        var result = await SearchAsync(options);
+
+        result.Items
+            .OrderBy(item => item.ProductId)
+            .Select(item => item.ProductId)
+            .ShouldBe(["RJ0000001", "RJ0000003"]);
+    }
+
+    [Fact]
+    public async Task Filter_Downloads_Range()
+    {
+        var options = new SearchOptions<VoiceWorkSearchCriteria, VoiceWorkSortField>()
+        {
+            Criteria = new()
+            {
+                MinDownloads = 100,
+                MaxDownloads = 10000
+            }
+        };
+
+        var result = await SearchAsync(options);
+
+        result.Items
+            .OrderBy(item => item.ProductId)
+            .Select(item => item.ProductId)
+            .ShouldBe(["RJ0000001", "RJ0000002"]);
+    }
+
+    [Fact]
+    public async Task Filter_Favorite()
+    {
+        var options = new SearchOptions<VoiceWorkSearchCriteria, VoiceWorkSortField>()
+        {
+            Criteria = new()
+            {
+                ShowFavoriteVoiceWorks = true
+            }
+        };
+
+        var result = await SearchAsync(options);
+
+        result.Items
+            .OrderBy(item => item.ProductId)
+            .Select(item => item.ProductId)
+            .ShouldBe(["RJ0000002"]);
+    }
+}