Vanara/UnitTests/Core/Extensions/EnumFlagIndexerTests.cs

using NUnit.Framework;

namespace Vanara.Extensions.Tests;

[TestFixture()]
public class EnumFlagIndexerTests
{
	[Test()]
	public void EnumFlagIndexerTest()
	{
		Assert.That(() => { EnumFlagIndexer<ConsoleColor> e = ConsoleColor.Black; }, Throws.ArgumentException);
		var efi = new EnumFlagIndexer<GenericUriParserOptions>();
		Assert.That((GenericUriParserOptions)efi, Is.EqualTo(GenericUriParserOptions.Default));
		efi = new EnumFlagIndexer<GenericUriParserOptions>(GenericUriParserOptions.Idn);
		Assert.That((GenericUriParserOptions)efi, Is.EqualTo(GenericUriParserOptions.Idn));
	}

	[Test()]
	public void AndOrTest()
	{
		var efi = new EnumFlagIndexer<GenericUriParserOptions>(GenericUriParserOptions.Idn);
		Assert.That(efi | GenericUriParserOptions.NoPort, Is.EqualTo(GenericUriParserOptions.Idn | GenericUriParserOptions.NoPort));
		efi |= GenericUriParserOptions.NoPort;
		Assert.That(efi & GenericUriParserOptions.NoPort, Is.EqualTo(GenericUriParserOptions.NoPort));
	}

	[Test()]
	public void ClearTest()
	{
		var efi = new EnumFlagIndexer<GenericUriParserOptions>(GenericUriParserOptions.Idn);
		Assert.That((GenericUriParserOptions)efi, Is.EqualTo(GenericUriParserOptions.Idn));
		efi.Clear();
		Assert.That((GenericUriParserOptions)efi, Is.EqualTo(GenericUriParserOptions.Default));
	}

	[Test()]
	public void EqualsTest()
	{
		var efi = new EnumFlagIndexer<GenericUriParserOptions>(GenericUriParserOptions.Idn);
		Assert.That(efi.Equals(new EnumFlagIndexer<GenericUriParserOptions>(GenericUriParserOptions.Idn)), Is.True);
		Assert.That(efi == new EnumFlagIndexer<GenericUriParserOptions>(GenericUriParserOptions.Idn), Is.True);
		Assert.That(efi.Equals(GenericUriParserOptions.Idn), Is.True);
		Assert.That(efi == GenericUriParserOptions.Idn, Is.True);
		Assert.That(efi != GenericUriParserOptions.IriParsing, Is.True);
		Assert.That(efi.Equals(new EnumFlagIndexer<GenericUriParserOptions>(GenericUriParserOptions.IriParsing)), Is.False);
		Assert.That(efi.Equals(new EnumFlagIndexer<GenericUriParserOptions>(GenericUriParserOptions.IriParsing)), Is.False);
		Assert.That(efi.Equals(GenericUriParserOptions.IriParsing), Is.False);
		Assert.That(efi.Equals(512), Is.False);
		Assert.That(efi.Equals("512"), Is.False);
	}

	[Test()]
	public void GetHashCodeTest()
	{
		var efi = new EnumFlagIndexer<GenericUriParserOptions>(GenericUriParserOptions.Idn);
		Assert.That(efi.GetHashCode(), Is.EqualTo(GenericUriParserOptions.Idn.GetHashCode()));
	}

	[Test()]
	public void GetEnumeratorTest()
	{
		var efi = new EnumFlagIndexer<GenericUriParserOptions>(GenericUriParserOptions.Idn | GenericUriParserOptions.NoPort);
		Assert.That(efi, Is.EquivalentTo(new[] { GenericUriParserOptions.Idn, GenericUriParserOptions.NoPort }));
		efi |= (GenericUriParserOptions)4096;
		Assert.That(efi, Is.EquivalentTo(new[] { GenericUriParserOptions.Idn, GenericUriParserOptions.NoPort, (GenericUriParserOptions)4096 }));
	}

	[Test()]
	public void IndexerTest()
	{
		var efi = new EnumFlagIndexer<GenericUriParserOptions>(GenericUriParserOptions.Idn | GenericUriParserOptions.NoPort);
		Assert.That(efi[GenericUriParserOptions.Idn], Is.True);
		Assert.That(efi[GenericUriParserOptions.NoPort], Is.True);
		Assert.That(efi[GenericUriParserOptions.NoFragment], Is.False);
		efi[GenericUriParserOptions.NoFragment] = true;
		Assert.That(efi[GenericUriParserOptions.NoFragment], Is.True);
		Assert.That(efi, Is.EqualTo(GenericUriParserOptions.NoPort | GenericUriParserOptions.Idn | GenericUriParserOptions.NoFragment));
		efi[GenericUriParserOptions.Idn] = false;
		Assert.That(efi, Is.EqualTo(GenericUriParserOptions.NoPort | GenericUriParserOptions.NoFragment));
		efi[GenericUriParserOptions.GenericAuthority] = false;
		Assert.That(efi, Is.EqualTo(GenericUriParserOptions.NoPort | GenericUriParserOptions.NoFragment));
	}

	[Test()]
	public void ToStringTest()
	{
		var efi = new EnumFlagIndexer<GenericUriParserOptions>(GenericUriParserOptions.Idn);
		Assert.That(efi.ToString(), Is.EqualTo("Idn"));
		efi |= GenericUriParserOptions.NoPort;
		Assert.That(efi.ToString(), Is.EqualTo("NoPort, Idn"));
	}

	[Test()]
	public void UnionTest()
	{
		var efi = new EnumFlagIndexer<GenericUriParserOptions>(GenericUriParserOptions.Idn);
		efi.Union(GenericUriParserOptions.NoPort);
		Assert.That(efi.Equals(GenericUriParserOptions.Idn | GenericUriParserOptions.NoPort), Is.True);
		efi.Union(GenericUriParserOptions.NoPort);
		Assert.That(efi.Equals(GenericUriParserOptions.Idn | GenericUriParserOptions.NoPort), Is.True);
	}

	[Test()]
	public void UnionTest1()
	{
		var efi = new EnumFlagIndexer<GenericUriParserOptions>(GenericUriParserOptions.Idn);
		efi.Union(new[] { GenericUriParserOptions.IriParsing, GenericUriParserOptions.NoPort });
		Assert.That(efi.Equals(GenericUriParserOptions.Idn | GenericUriParserOptions.NoPort | GenericUriParserOptions.IriParsing), Is.True);
		efi.Union(new[] { GenericUriParserOptions.Idn, GenericUriParserOptions.NoPort });
		Assert.That(efi.Equals(GenericUriParserOptions.Idn | GenericUriParserOptions.NoPort | GenericUriParserOptions.IriParsing), Is.True);
	}
}