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RegistryKey_DeleteValue_str.cs
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RegistryKey_DeleteValue_str.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 System.Linq;
using Xunit;
namespace Microsoft.Win32.RegistryTests
{
public class RegistryKey_DeleteValue_str : RegistryTestsBase
{
[Fact]
public void NegativeTests()
{
const string valueName = "TestValue";
// Should throw if passed subkey name is null
AssertExtensions.Throws<ArgumentException>(null, () => TestRegistryKey.DeleteValue(null));
// Should throw because value doesn't exists
AssertExtensions.Throws<ArgumentException>(null, () => TestRegistryKey.DeleteValue(valueName));
TestRegistryKey.SetValue(valueName, 42);
// Should throw because RegistryKey is readonly
using (var rk = Registry.CurrentUser.OpenSubKey(TestRegistryKeyName, false))
{
Assert.Throws<UnauthorizedAccessException>(() => rk.DeleteValue(valueName));
}
// Should throw if RegistryKey is closed
Assert.Throws<ObjectDisposedException>(() =>
{
TestRegistryKey.Dispose();
TestRegistryKey.DeleteValue(valueName);
});
}
[Fact]
public void DeleteValueTest()
{
// [] Vanilla case, deleting a value
Assert.Equal(expected: 0, actual: TestRegistryKey.ValueCount);
TestRegistryKey.SetValue(TestRegistryKeyName, 5);
Assert.Equal(expected: 1, actual: TestRegistryKey.ValueCount);
TestRegistryKey.DeleteValue(TestRegistryKeyName);
Assert.Equal(expected: 0, actual: TestRegistryKey.ValueCount);
}
[Fact]
public void DeleteValueTest2()
{
// [] Vanilla case , add a bunch different objects and then Delete them
object[][] testCases = TestData.TestValueTypes.ToArray();
foreach (var testCase in testCases)
{
TestRegistryKey.SetValue(testCase[0].ToString(), testCase[1]);
}
Assert.Equal(expected: testCases.Length, actual: TestRegistryKey.ValueCount);
foreach (var testCase in testCases)
{
TestRegistryKey.DeleteValue(testCase[0].ToString());
}
Assert.Equal(expected: 0, actual: TestRegistryKey.ValueCount);
}
}
}