1 files changed, 230 insertions, 0 deletions
diff --git a/tests/Jellyfin.Api.Tests/ModelBinders/PipeDelimitedCollectionModelBinderTests.cs b/tests/Jellyfin.Api.Tests/ModelBinders/PipeDelimitedCollectionModelBinderTests.cs
new file mode 100644
index 000000000..941f4f12c
--- /dev/null
+++ b/tests/Jellyfin.Api.Tests/ModelBinders/PipeDelimitedCollectionModelBinderTests.cs
@@ -0,0 +1,230 @@
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Threading.Tasks;
+using Jellyfin.Api.ModelBinders;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc.ModelBinding;
+using Microsoft.Extensions.Logging.Abstractions;
+using Microsoft.Extensions.Primitives;
+using Moq;
+using Xunit;
+
+namespace Jellyfin.Api.Tests.ModelBinders
+{
+    public sealed class PipeDelimitedCollectionModelBinderTests
+    {
+        [Fact]
+        public async Task BindModelAsync_CorrectlyBindsValidPipeDelimitedStringArrayQuery()
+        {
+            var queryParamName = "test";
+            IReadOnlyList<string> queryParamValues = new[] { "lol", "xd" };
+            var queryParamString = "lol|xd";
+            var queryParamType = typeof(string[]);
+
+            var modelBinder = new PipeDelimitedCollectionModelBinder(new NullLogger<PipeDelimitedCollectionModelBinder>());
+            var valueProvider = new QueryStringValueProvider(
+                    new BindingSource(string.Empty, string.Empty, false, false),
+                    new QueryCollection(new Dictionary<string, StringValues> { { queryParamName, new StringValues(queryParamString) } }),
+                    CultureInfo.InvariantCulture);
+            var bindingContextMock = new Mock<ModelBindingContext>();
+            bindingContextMock.Setup(b => b.ValueProvider).Returns(valueProvider);
+            bindingContextMock.Setup(b => b.ModelName).Returns(queryParamName);
+            bindingContextMock.Setup(b => b.ModelType).Returns(queryParamType);
+            bindingContextMock.SetupProperty(b => b.Result);
+
+            await modelBinder.BindModelAsync(bindingContextMock.Object);
+
+            Assert.True(bindingContextMock.Object.Result.IsModelSet);
+            Assert.Equal((IReadOnlyList<string>?)bindingContextMock.Object?.Result.Model, queryParamValues);
+        }
+
+        [Fact]
+        public async Task BindModelAsync_CorrectlyBindsValidDelimitedIntArrayQuery()
+        {
+            var queryParamName = "test";
+            IReadOnlyList<int> queryParamValues = new[] { 42, 0 };
+            var queryParamString = "42|0";
+            var queryParamType = typeof(int[]);
+
+            var modelBinder = new PipeDelimitedCollectionModelBinder(new NullLogger<PipeDelimitedCollectionModelBinder>());
+            var valueProvider = new QueryStringValueProvider(
+                    new BindingSource(string.Empty, string.Empty, false, false),
+                    new QueryCollection(new Dictionary<string, StringValues> { { queryParamName, new StringValues(queryParamString) } }),
+                    CultureInfo.InvariantCulture);
+            var bindingContextMock = new Mock<ModelBindingContext>();
+            bindingContextMock.Setup(b => b.ValueProvider).Returns(valueProvider);
+            bindingContextMock.Setup(b => b.ModelName).Returns(queryParamName);
+            bindingContextMock.Setup(b => b.ModelType).Returns(queryParamType);
+            bindingContextMock.SetupProperty(b => b.Result);
+
+            await modelBinder.BindModelAsync(bindingContextMock.Object);
+
+            Assert.True(bindingContextMock.Object.Result.IsModelSet);
+            Assert.Equal((IReadOnlyList<int>?)bindingContextMock.Object.Result.Model, queryParamValues);
+        }
+
+        [Fact]
+        public async Task BindModelAsync_CorrectlyBindsValidPipeDelimitedEnumArrayQuery()
+        {
+            var queryParamName = "test";
+            IReadOnlyList<TestType> queryParamValues = new[] { TestType.How, TestType.Much };
+            var queryParamString = "How|Much";
+            var queryParamType = typeof(TestType[]);
+
+            var modelBinder = new PipeDelimitedCollectionModelBinder(new NullLogger<PipeDelimitedCollectionModelBinder>());
+            var valueProvider = new QueryStringValueProvider(
+                    new BindingSource(string.Empty, string.Empty, false, false),
+                    new QueryCollection(new Dictionary<string, StringValues> { { queryParamName, new StringValues(queryParamString) } }),
+                    CultureInfo.InvariantCulture);
+            var bindingContextMock = new Mock<ModelBindingContext>();
+            bindingContextMock.Setup(b => b.ValueProvider).Returns(valueProvider);
+            bindingContextMock.Setup(b => b.ModelName).Returns(queryParamName);
+            bindingContextMock.Setup(b => b.ModelType).Returns(queryParamType);
+            bindingContextMock.SetupProperty(b => b.Result);
+
+            await modelBinder.BindModelAsync(bindingContextMock.Object);
+
+            Assert.True(bindingContextMock.Object.Result.IsModelSet);
+            Assert.Equal((IReadOnlyList<TestType>?)bindingContextMock.Object.Result.Model, queryParamValues);
+        }
+
+        [Fact]
+        public async Task BindModelAsync_CorrectlyBindsValidPipeDelimitedEnumArrayQueryWithDoublePipes()
+        {
+            var queryParamName = "test";
+            IReadOnlyList<TestType> queryParamValues = new[] { TestType.How, TestType.Much };
+            var queryParamString = "How||Much";
+            var queryParamType = typeof(TestType[]);
+
+            var modelBinder = new PipeDelimitedCollectionModelBinder(new NullLogger<PipeDelimitedCollectionModelBinder>());
+            var valueProvider = new QueryStringValueProvider(
+                    new BindingSource(string.Empty, string.Empty, false, false),
+                    new QueryCollection(new Dictionary<string, StringValues> { { queryParamName, new StringValues(queryParamString) } }),
+                    CultureInfo.InvariantCulture);
+            var bindingContextMock = new Mock<ModelBindingContext>();
+            bindingContextMock.Setup(b => b.ValueProvider).Returns(valueProvider);
+            bindingContextMock.Setup(b => b.ModelName).Returns(queryParamName);
+            bindingContextMock.Setup(b => b.ModelType).Returns(queryParamType);
+            bindingContextMock.SetupProperty(b => b.Result);
+
+            await modelBinder.BindModelAsync(bindingContextMock.Object);
+
+            Assert.True(bindingContextMock.Object.Result.IsModelSet);
+            Assert.Equal((IReadOnlyList<TestType>?)bindingContextMock.Object.Result.Model, queryParamValues);
+        }
+
+        [Fact]
+        public async Task BindModelAsync_CorrectlyBindsValidEnumArrayQuery()
+        {
+            var queryParamName = "test";
+            IReadOnlyList<TestType> queryParamValues = new[] { TestType.How, TestType.Much };
+            var queryParamString1 = "How";
+            var queryParamString2 = "Much";
+            var queryParamType = typeof(TestType[]);
+
+            var modelBinder = new PipeDelimitedCollectionModelBinder(new NullLogger<PipeDelimitedCollectionModelBinder>());
+
+            var valueProvider = new QueryStringValueProvider(
+                    new BindingSource(string.Empty, string.Empty, false, false),
+                    new QueryCollection(new Dictionary<string, StringValues>
+                    {
+                        { queryParamName, new StringValues(new[] { queryParamString1, queryParamString2 }) },
+                    }),
+                    CultureInfo.InvariantCulture);
+            var bindingContextMock = new Mock<ModelBindingContext>();
+            bindingContextMock.Setup(b => b.ValueProvider).Returns(valueProvider);
+            bindingContextMock.Setup(b => b.ModelName).Returns(queryParamName);
+            bindingContextMock.Setup(b => b.ModelType).Returns(queryParamType);
+            bindingContextMock.SetupProperty(b => b.Result);
+
+            await modelBinder.BindModelAsync(bindingContextMock.Object);
+
+            Assert.True(bindingContextMock.Object.Result.IsModelSet);
+            Assert.Equal((IReadOnlyList<TestType>?)bindingContextMock.Object.Result.Model, queryParamValues);
+        }
+
+        [Fact]
+        public async Task BindModelAsync_CorrectlyBindsEmptyEnumArrayQuery()
+        {
+            var queryParamName = "test";
+            IReadOnlyList<TestType> queryParamValues = Array.Empty<TestType>();
+            var queryParamType = typeof(TestType[]);
+
+            var modelBinder = new PipeDelimitedCollectionModelBinder(new NullLogger<PipeDelimitedCollectionModelBinder>());
+
+            var valueProvider = new QueryStringValueProvider(
+                    new BindingSource(string.Empty, string.Empty, false, false),
+                    new QueryCollection(new Dictionary<string, StringValues>
+                    {
+                        { queryParamName, new StringValues(value: null) },
+                    }),
+                    CultureInfo.InvariantCulture);
+            var bindingContextMock = new Mock<ModelBindingContext>();
+            bindingContextMock.Setup(b => b.ValueProvider).Returns(valueProvider);
+            bindingContextMock.Setup(b => b.ModelName).Returns(queryParamName);
+            bindingContextMock.Setup(b => b.ModelType).Returns(queryParamType);
+            bindingContextMock.SetupProperty(b => b.Result);
+
+            await modelBinder.BindModelAsync(bindingContextMock.Object);
+
+            Assert.True(bindingContextMock.Object.Result.IsModelSet);
+            Assert.Equal((IReadOnlyList<TestType>?)bindingContextMock.Object.Result.Model, queryParamValues);
+        }
+
+        [Fact]
+        public async Task BindModelAsync_EnumArrayQuery_BindValidOnly()
+        {
+            var queryParamName = "test";
+            var queryParamString = "🔥|😢";
+            var queryParamType = typeof(IReadOnlyList<TestType>);
+
+            var modelBinder = new PipeDelimitedCollectionModelBinder(new NullLogger<PipeDelimitedCollectionModelBinder>());
+            var valueProvider = new QueryStringValueProvider(
+                    new BindingSource(string.Empty, string.Empty, false, false),
+                    new QueryCollection(new Dictionary<string, StringValues> { { queryParamName, new StringValues(queryParamString) } }),
+                    CultureInfo.InvariantCulture);
+            var bindingContextMock = new Mock<ModelBindingContext>();
+            bindingContextMock.Setup(b => b.ValueProvider).Returns(valueProvider);
+            bindingContextMock.Setup(b => b.ModelName).Returns(queryParamName);
+            bindingContextMock.Setup(b => b.ModelType).Returns(queryParamType);
+            bindingContextMock.SetupProperty(b => b.Result);
+
+            await modelBinder.BindModelAsync(bindingContextMock.Object);
+            Assert.True(bindingContextMock.Object.Result.IsModelSet);
+            var listResult = (IReadOnlyList<TestType>?)bindingContextMock.Object.Result.Model;
+            Assert.NotNull(listResult);
+            Assert.Empty(listResult);
+        }
+
+        [Fact]
+        public async Task BindModelAsync_EnumArrayQuery_BindValidOnly_2()
+        {
+            var queryParamName = "test";
+            var queryParamString1 = "How";
+            var queryParamString2 = "😱";
+            var queryParamType = typeof(IReadOnlyList<TestType>);
+
+            var modelBinder = new PipeDelimitedCollectionModelBinder(new NullLogger<PipeDelimitedCollectionModelBinder>());
+
+            var valueProvider = new QueryStringValueProvider(
+                    new BindingSource(string.Empty, string.Empty, false, false),
+                    new QueryCollection(new Dictionary<string, StringValues>
+                    {
+                        { queryParamName, new StringValues(new[] { queryParamString1, queryParamString2 }) },
+                    }),
+                    CultureInfo.InvariantCulture);
+            var bindingContextMock = new Mock<ModelBindingContext>();
+            bindingContextMock.Setup(b => b.ValueProvider).Returns(valueProvider);
+            bindingContextMock.Setup(b => b.ModelName).Returns(queryParamName);
+            bindingContextMock.Setup(b => b.ModelType).Returns(queryParamType);
+            bindingContextMock.SetupProperty(b => b.Result);
+
+            await modelBinder.BindModelAsync(bindingContextMock.Object);
+            Assert.True(bindingContextMock.Object.Result.IsModelSet);
+            var listResult = (IReadOnlyList<TestType>?)bindingContextMock.Object.Result.Model;
+            Assert.NotNull(listResult);
+            Assert.Single(listResult);
+        }
+    }
+}