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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System.Globalization;
using Microsoft.Extensions.Primitives;
namespace Microsoft.AspNetCore.Mvc.ModelBinding;
public abstract class EnumerableValueProviderTest
{
protected static Dictionary<string, StringValues> BackingStore { get; } = new Dictionary<string, StringValues>
{
{ "some", new[] { "someValue1", "someValue2" } },
{ "null_value", StringValues.Empty },
{ "prefix.name", new[] { "someOtherValue" } },
{ "prefix.null_value", StringValues.Empty },
{ "prefix.property1.property", StringValues.Empty },
{ "prefix.property2[index]", StringValues.Empty },
{ "prefix[index1]", StringValues.Empty },
{ "prefix[index1].property1", StringValues.Empty },
{ "prefix[index1].property2", StringValues.Empty },
{ "prefix[index2].property", StringValues.Empty },
{ "[index]", StringValues.Empty },
{ "[index].property", StringValues.Empty },
{ "[index][anotherIndex]", StringValues.Empty },
};
[Fact]
public void ContainsPrefix_WithEmptyCollection_ReturnsFalseForEmptyPrefix()
{
// Arrange
var backingStore = new Dictionary<string, StringValues>();
var valueProvider = GetEnumerableValueProvider(BindingSource.Query, backingStore, culture: null);
// Act
var result = valueProvider.ContainsPrefix(string.Empty);
// Assert
Assert.False(result);
}
[Fact]
public void ContainsPrefix_WithNonEmptyCollection_ReturnsTrueForEmptyPrefix()
{
// Arrange
var valueProvider = GetEnumerableValueProvider(BindingSource.Query, BackingStore, culture: null);
// Act
var result = valueProvider.ContainsPrefix(string.Empty);
// Assert
Assert.True(result);
}
[Theory]
[InlineData("some")]
[InlineData("prefix")]
[InlineData("prefix.name")]
[InlineData("[index]")]
[InlineData("prefix[index1]")]
public void ContainsPrefix_WithNonEmptyCollection_ReturnsTrueForKnownPrefixes(string prefix)
{
// Arrange
var valueProvider = GetEnumerableValueProvider(BindingSource.Query, BackingStore, culture: null);
// Act & Assert
Assert.True(valueProvider.ContainsPrefix(prefix));
}
[Fact]
public void ContainsPrefix_WithNonEmptyCollection_ReturnsFalseForUnknownPrefix()
{
// Arrange
var valueProvider = GetEnumerableValueProvider(BindingSource.Query, BackingStore, culture: null);
// Act
var result = valueProvider.ContainsPrefix("biff");
// Assert
Assert.False(result);
}
[Fact]
public void GetKeysFromPrefix_EmptyPrefix_ReturnsAllPrefixes()
{
// Arrange
var expected = new Dictionary<string, string>
{
{ "index", "[index]" },
{ "null_value", "null_value" },
{ "prefix", "prefix" },
{ "some", "some" },
};
var valueProvider = GetEnumerableValueProvider(BindingSource.Query, BackingStore, culture: null);
// Act
var result = valueProvider.GetKeysFromPrefix(string.Empty);
// Assert
Assert.Equal(expected, result.OrderBy(kvp => kvp.Key));
}
[Fact]
public void GetKeysFromPrefix_UnknownPrefix_ReturnsEmptyDictionary()
{
// Arrange
var valueProvider = GetEnumerableValueProvider(BindingSource.Query, BackingStore, culture: null);
// Act
var result = valueProvider.GetKeysFromPrefix("abc");
// Assert
Assert.Empty(result);
}
[Fact]
public void GetKeysFromPrefix_KnownPrefix_ReturnsMatchingItems()
{
// Arrange
var expected = new Dictionary<string, string>
{
{ "name", "prefix.name" },
{ "null_value", "prefix.null_value" },
{ "property1", "prefix.property1" },
{ "property2", "prefix.property2" },
{ "index1", "prefix[index1]" },
{ "index2", "prefix[index2]" },
};
var valueProvider = GetEnumerableValueProvider(BindingSource.Query, BackingStore, culture: null);
// Act
var result = valueProvider.GetKeysFromPrefix("prefix");
// Assert
Assert.Equal(expected, result);
}
[Fact]
public void GetKeysFromPrefix_IndexPrefix_ReturnsMatchingItems()
{
// Arrange
var expected = new Dictionary<string, string>
{
{ "property", "[index].property" },
{ "anotherIndex", "[index][anotherIndex]" }
};
var valueProvider = GetEnumerableValueProvider(BindingSource.Query, BackingStore, culture: null);
// Act
var result = valueProvider.GetKeysFromPrefix("[index]");
// Assert
Assert.Equal(expected, result);
}
[Fact]
public void GetValue_SingleValue()
{
// Arrange
var culture = new CultureInfo("fr-FR");
var valueProvider = GetEnumerableValueProvider(BindingSource.Query, BackingStore, culture);
// Act
var result = valueProvider.GetValue("prefix.name");
// Assert
Assert.Equal("someOtherValue", (string)result);
Assert.Equal(culture, result.Culture);
}
[Fact]
public void GetValue_MultiValue()
{
// Arrange
var culture = new CultureInfo("fr-FR");
var valueProvider = GetEnumerableValueProvider(BindingSource.Query, BackingStore, culture);
// Act
var result = valueProvider.GetValue("some");
// Assert
Assert.Equal(new[] { "someValue1", "someValue2" }, result.Values.ToArray());
Assert.Equal("someValue1,someValue2", (string)result);
Assert.Equal(culture, result.Culture);
}
[Theory]
[InlineData("null_value")]
[InlineData("prefix.null_value")]
public void GetValue_NullValue(string key)
{
// Arrange
var culture = new CultureInfo("fr-FR");
var valueProvider = GetEnumerableValueProvider(BindingSource.Query, BackingStore, culture);
// Act
var result = valueProvider.GetValue(key);
// Assert
Assert.Equal(ValueProviderResult.None, result);
}
[Fact]
public void GetValue_NullMultipleValue()
{
// Arrange
var backingStore = new Dictionary<string, StringValues>
{
{ "key", new string[] { null, null, "value" } },
};
var culture = new CultureInfo("fr-FR");
var valueProvider = GetEnumerableValueProvider(BindingSource.Query, backingStore, culture);
// Act
var result = valueProvider.GetValue("key");
// Assert
Assert.Equal(new[] { null, null, "value" }, result.Values.ToArray());
}
[Fact]
public void GetValue_ReturnsNullIfKeyNotFound()
{
// Arrange
var valueProvider = GetEnumerableValueProvider(BindingSource.Query, BackingStore, culture: null);
// Act
var result = valueProvider.GetValue("prefix");
// Assert
Assert.Equal(ValueProviderResult.None, result);
}
[Fact]
public virtual void GetValue_EmptyKey()
{
// Arrange
var store = new Dictionary<string, StringValues>(BackingStore)
{
{ string.Empty, "some-value" },
};
var valueProvider = GetEnumerableValueProvider(BindingSource.Query, store, culture: null);
// Act
var result = valueProvider.GetValue(string.Empty);
// Assert
Assert.Equal(ValueProviderResult.None, result);
}
[Fact]
public virtual void FilterInclude()
{
// Arrange
var provider = GetBindingSourceValueProvider(BindingSource.Query, BackingStore, culture: null);
var bindingSource = new BindingSource(
BindingSource.Query.Id,
displayName: null,
isGreedy: true,
isFromRequest: true);
// Act
var result = provider.Filter(bindingSource);
// Assert
Assert.NotNull(result);
Assert.Same(result, provider);
}
[Fact]
public void FilterExclude()
{
// Arrange
var provider = GetBindingSourceValueProvider(BindingSource.Query, BackingStore, culture: null);
var bindingSource = new BindingSource(
"Test",
displayName: null,
isGreedy: true,
isFromRequest: true);
// Act
var result = provider.Filter(bindingSource);
// Assert
Assert.Null(result);
}
protected IBindingSourceValueProvider GetBindingSourceValueProvider(
BindingSource bindingSource,
Dictionary<string, StringValues> values,
CultureInfo culture)
{
var provider = GetEnumerableValueProvider(bindingSource, values, culture) as IBindingSourceValueProvider;
// All IEnumerableValueProvider implementations also implement IBindingSourceValueProvider.
Assert.NotNull(provider);
return provider;
}
protected abstract IEnumerableValueProvider GetEnumerableValueProvider(
BindingSource bindingSource,
Dictionary<string, StringValues> values,
CultureInfo culture);
}
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