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RegistryKey_DeleteSubKeyTree.cs
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RegistryKey_DeleteSubKeyTree.cs
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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 Xunit;
namespace Microsoft.Win32.RegistryTests
{
public class RegistryKey_DeleteSubKeyTree : RegistryKeyDeleteSubKeyTreeTestsBase
{
[Fact]
public void NegativeTests()
{
const string name = "Test";
// Should throw if passed subkey name is null
Assert.Throws<ArgumentNullException>(() => TestRegistryKey.DeleteSubKeyTree(null, throwOnMissingSubKey: true));
Assert.Throws<ArgumentNullException>(() => TestRegistryKey.DeleteSubKeyTree(null, throwOnMissingSubKey: false));
// Should throw if target subkey is system subkey and name is empty
AssertExtensions.Throws<ArgumentException>(null, () => Registry.CurrentUser.DeleteSubKeyTree(string.Empty, throwOnMissingSubKey: false));
// Should throw because subkey doesn't exists
AssertExtensions.Throws<ArgumentException>(null, () => TestRegistryKey.DeleteSubKeyTree(name, throwOnMissingSubKey: true));
// Should throw because RegistryKey is readonly
using (var rk = TestRegistryKey.OpenSubKey(string.Empty, false))
{
Assert.Throws<UnauthorizedAccessException>(() => rk.DeleteSubKeyTree(name, throwOnMissingSubKey: false));
}
// Should throw if RegistryKey is closed
Assert.Throws<ObjectDisposedException>(() =>
{
TestRegistryKey.Dispose();
TestRegistryKey.DeleteSubKeyTree(name, throwOnMissingSubKey: true);
});
}
[Fact]
public void SubkeyMissingTest()
{
//Should NOT throw when throwOnMissing is false with subkey missing
const string name = "Test";
TestRegistryKey.DeleteSubKeyTree(name, throwOnMissingSubKey: false);
}
[Fact]
public void SubkeyExistsTests()
{
const string subKeyExists = "SubkeyExists";
const string subKeyExists2 = "SubkeyExists2";
//throwOnMissing is true with subkey present
using (var rk = TestRegistryKey.CreateSubKey(subKeyExists))
{
using RegistryKey a = rk.CreateSubKey("a");
using RegistryKey b = rk.CreateSubKey("b");
TestRegistryKey.DeleteSubKeyTree(subKeyExists, false);
}
//throwOnMissing is false with subkey present
using (var rk = TestRegistryKey.CreateSubKey(subKeyExists2))
{
using RegistryKey a = rk.CreateSubKey("a");
using RegistryKey b = rk.CreateSubKey("b");
TestRegistryKey.DeleteSubKeyTree(subKeyExists2, true);
}
}
[Theory]
[MemberData(nameof(TestRegistrySubKeyNames))]
public void DeleteSubKeyTree_ThrowOnMissing_KeyExists_KeyDeleted(string expected, string subKeyName) =>
Verify_DeleteSubKeyTree_KeyExists_KeyDeleted(expected, () => TestRegistryKey.DeleteSubKeyTree(subKeyName, throwOnMissingSubKey: true));
[Theory]
[MemberData(nameof(TestRegistrySubKeyNames))]
public void DeleteSubKeyTree_DoNotThrow_KeyExists_KeyDeleted(string expected, string subKeyName) =>
Verify_DeleteSubKeyTree_KeyExists_KeyDeleted(expected, () => TestRegistryKey.DeleteSubKeyTree(subKeyName, throwOnMissingSubKey: false));
[Theory]
[MemberData(nameof(TestRegistrySubKeyNames))]
public void DeleteSubKeyTree_ThrowOnMissing_KeyDoesNotExists_Throws(string expected, string subKeyName) =>
Verify_DeleteSubKeyTree_KeyDoesNotExists_Throws(expected, () => TestRegistryKey.DeleteSubKeyTree(subKeyName, throwOnMissingSubKey: true));
[Theory]
[MemberData(nameof(TestRegistrySubKeyNames))]
public void DeleteSubKeyTree_DoNotThrow_KeyDoesNotExists_DoesNotThrow(string expected, string subKeyName) =>
Verify_DeleteSubKeyTree_KeyDoesNotExists_DoesNotThrow(expected, () => TestRegistryKey.DeleteSubKeyTree(subKeyName, throwOnMissingSubKey: false));
}
}