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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;
using System.Collections.Generic;
using System.Linq;
using Microsoft.AspNetCore.Shared;
using Xunit.Sdk;
namespace Microsoft.Extensions.Logging.Testing;
public static class LogValuesAssert
{
/// <summary>
/// Asserts that the given key and value are present in the actual values.
/// </summary>
/// <param name="key">The key of the item to be found.</param>
/// <param name="value">The value of the item to be found.</param>
/// <param name="actualValues">The actual values.</param>
public static void Contains(
string key,
object value,
IEnumerable<KeyValuePair<string, object>> actualValues)
{
Contains(new[] { new KeyValuePair<string, object>(key, value) }, actualValues);
}
/// <summary>
/// Asserts that all the expected values are present in the actual values by ignoring
/// the order of values.
/// </summary>
/// <param name="expectedValues">Expected subset of values</param>
/// <param name="actualValues">Actual set of values</param>
public static void Contains(
IEnumerable<KeyValuePair<string, object>> expectedValues,
IEnumerable<KeyValuePair<string, object>> actualValues)
{
ArgumentNullThrowHelper.ThrowIfNull(expectedValues);
ArgumentNullThrowHelper.ThrowIfNull(actualValues);
var comparer = new LogValueComparer();
foreach (var expectedPair in expectedValues)
{
if (!actualValues.Contains(expectedPair, comparer))
{
throw EqualException.ForMismatchedValues(
expected: GetString(expectedValues),
actual: GetString(actualValues));
}
}
}
private static string GetString(IEnumerable<KeyValuePair<string, object>> logValues)
{
return string.Join(",", logValues.Select(kvp => $"[{kvp.Key} {kvp.Value}]"));
}
private sealed class LogValueComparer : IEqualityComparer<KeyValuePair<string, object>>
{
public bool Equals(KeyValuePair<string, object> x, KeyValuePair<string, object> y)
{
return string.Equals(x.Key, y.Key) && object.Equals(x.Value, y.Value);
}
public int GetHashCode(KeyValuePair<string, object> obj)
{
// We are never going to put this KeyValuePair in a hash table,
// so this is ok.
throw new NotImplementedException();
}
}
}
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