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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
using System.Collections.Generic;
using System.Linq;
using Xunit;
namespace System.Web.Mvc.Test
{
public class DictionaryHelpersTest
{
[Fact]
public void DoesAnyKeyHavePrefixFailure()
{
// Arrange
Dictionary<string, object> dict = new Dictionary<string, object>(StringComparer.OrdinalIgnoreCase)
{
{ "FOOBAR", 42 }
};
// Act
bool wasPrefixFound = DictionaryHelpers.DoesAnyKeyHavePrefix(dict, "foo");
// Assert
Assert.False(wasPrefixFound);
}
[Fact]
public void DoesAnyKeyHavePrefixSuccess()
{
// Arrange
Dictionary<string, object> dict = new Dictionary<string, object>(StringComparer.OrdinalIgnoreCase)
{
{ "FOO.BAR", 42 }
};
// Act
bool wasPrefixFound = DictionaryHelpers.DoesAnyKeyHavePrefix(dict, "foo");
// Assert
Assert.True(wasPrefixFound);
}
[Fact]
public void FindKeysWithPrefix()
{
// Arrange
Dictionary<string, string> dict = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase)
{
{ "FOO", "fooValue" },
{ "FOOBAR", "foobarValue" },
{ "FOO.BAR", "foo.barValue" },
{ "FOO[0]", "foo[0]Value" },
{ "BAR", "barValue" }
};
// Act
var matchingEntries = DictionaryHelpers.FindKeysWithPrefix(dict, "foo");
// Assert
var matchingEntriesList = matchingEntries.OrderBy(entry => entry.Key).ToList();
Assert.Equal(3, matchingEntriesList.Count);
Assert.Equal("foo", matchingEntriesList[0].Key);
Assert.Equal("fooValue", matchingEntriesList[0].Value);
Assert.Equal("FOO.BAR", matchingEntriesList[1].Key);
Assert.Equal("foo.barValue", matchingEntriesList[1].Value);
Assert.Equal("FOO[0]", matchingEntriesList[2].Key);
Assert.Equal("foo[0]Value", matchingEntriesList[2].Value);
}
[Fact]
public void GetOrDefaultMissing()
{
Dictionary<string, int> dict = new Dictionary<string, int>();
int @default = 15;
int value = dict.GetOrDefault("two", @default);
Assert.Equal(15, @default);
}
[Fact]
public void GetOrDefaultPresent()
{
Dictionary<string, int> dict = new Dictionary<string, int>() { { "one", 1 } };
int value = dict.GetOrDefault("one", -999);
Assert.Equal(1, 1);
}
}
}
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