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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 Newtonsoft.Json.Serialization;
using Xunit;
namespace Microsoft.AspNetCore.JsonPatch.Internal;
public class PocoAdapterTest
{
[Fact]
public void TryAdd_ReplacesExistingProperty()
{
// Arrange
var adapter = new PocoAdapter();
var contractResolver = new DefaultContractResolver();
var model = new Customer
{
Name = "Joana"
};
// Act
var addStatus = adapter.TryAdd(model, "Name", contractResolver, "John", out var errorMessage);
// Assert
Assert.Equal("John", model.Name);
Assert.True(addStatus);
Assert.True(string.IsNullOrEmpty(errorMessage), "Expected no error message");
}
[Fact]
public void TryAdd_ThrowsJsonPatchException_IfPropertyDoesNotExist()
{
// Arrange
var adapter = new PocoAdapter();
var contractResolver = new DefaultContractResolver();
var model = new Customer
{
Name = "Joana"
};
var expectedErrorMessage = "The target location specified by path segment 'LastName' was not found.";
// Act
var addStatus = adapter.TryAdd(model, "LastName", contractResolver, "Smith", out var errorMessage);
// Assert
Assert.False(addStatus);
Assert.Equal(expectedErrorMessage, errorMessage);
}
[Fact]
public void TryGet_ExistingProperty()
{
// Arrange
var adapter = new PocoAdapter();
var contractResolver = new DefaultContractResolver();
var model = new Customer
{
Name = "Joana"
};
// Act
var getStatus = adapter.TryGet(model, "Name", contractResolver, out var value, out var errorMessage);
// Assert
Assert.Equal("Joana", value);
Assert.True(getStatus);
Assert.True(string.IsNullOrEmpty(errorMessage), "Expected no error message");
}
[Fact]
public void TryGet_ThrowsJsonPatchException_IfPropertyDoesNotExist()
{
// Arrange
var adapter = new PocoAdapter();
var contractResolver = new DefaultContractResolver();
var model = new Customer
{
Name = "Joana"
};
var expectedErrorMessage = "The target location specified by path segment 'LastName' was not found.";
// Act
var getStatus = adapter.TryGet(model, "LastName", contractResolver, out var value, out var errorMessage);
// Assert
Assert.Null(value);
Assert.False(getStatus);
Assert.Equal(expectedErrorMessage, errorMessage);
}
[Fact]
public void TryRemove_SetsPropertyToNull()
{
// Arrange
var adapter = new PocoAdapter();
var contractResolver = new DefaultContractResolver();
var model = new Customer
{
Name = "Joana"
};
// Act
var removeStatus = adapter.TryRemove(model, "Name", contractResolver, out var errorMessage);
// Assert
Assert.Null(model.Name);
Assert.True(removeStatus);
Assert.True(string.IsNullOrEmpty(errorMessage), "Expected no error message");
}
[Fact]
public void TryRemove_ThrowsJsonPatchException_IfPropertyDoesNotExist()
{
// Arrange
var adapter = new PocoAdapter();
var contractResolver = new DefaultContractResolver();
var model = new Customer
{
Name = "Joana"
};
var expectedErrorMessage = "The target location specified by path segment 'LastName' was not found.";
// Act
var removeStatus = adapter.TryRemove(model, "LastName", contractResolver, out var errorMessage);
// Assert
Assert.False(removeStatus);
Assert.Equal(expectedErrorMessage, errorMessage);
}
[Fact]
public void TryReplace_OverwritesExistingValue()
{
// Arrange
var adapter = new PocoAdapter();
var contractResolver = new DefaultContractResolver();
var model = new Customer
{
Name = "Joana"
};
// Act
var replaceStatus = adapter.TryReplace(model, "Name", contractResolver, "John", out var errorMessage);
// Assert
Assert.Equal("John", model.Name);
Assert.True(replaceStatus);
Assert.True(string.IsNullOrEmpty(errorMessage), "Expected no error message");
}
[Fact]
public void TryReplace_ThrowsJsonPatchException_IfNewValueIsInvalidType()
{
// Arrange
var adapter = new PocoAdapter();
var contractResolver = new DefaultContractResolver();
var model = new Customer
{
Age = 25
};
var expectedErrorMessage = "The value 'TwentySix' is invalid for target location.";
// Act
var replaceStatus = adapter.TryReplace(model, "Age", contractResolver, "TwentySix", out var errorMessage);
// Assert
Assert.Equal(25, model.Age);
Assert.False(replaceStatus);
Assert.Equal(expectedErrorMessage, errorMessage);
}
[Fact]
public void TryReplace_ThrowsJsonPatchException_IfPropertyDoesNotExist()
{
// Arrange
var adapter = new PocoAdapter();
var contractResolver = new DefaultContractResolver();
var model = new Customer
{
Name = "Joana"
};
var expectedErrorMessage = "The target location specified by path segment 'LastName' was not found.";
// Act
var replaceStatus = adapter.TryReplace(model, "LastName", contractResolver, "Smith", out var errorMessage);
// Assert
Assert.Equal("Joana", model.Name);
Assert.False(replaceStatus);
Assert.Equal(expectedErrorMessage, errorMessage);
}
[Fact]
public void TryTest_DoesNotThrowException_IfTestSuccessful()
{
var adapter = new PocoAdapter();
var contractResolver = new DefaultContractResolver();
var model = new Customer
{
Name = "Joana"
};
// Act
var testStatus = adapter.TryTest(model, "Name", contractResolver, "Joana", out var errorMessage);
// Assert
Assert.Equal("Joana", model.Name);
Assert.True(testStatus);
Assert.True(string.IsNullOrEmpty(errorMessage), "Expected no error message");
}
[Fact]
public void TryTest_ThrowsJsonPatchException_IfTestFails()
{
// Arrange
var adapter = new PocoAdapter();
var contractResolver = new DefaultContractResolver();
var model = new Customer
{
Name = "Joana"
};
var expectedErrorMessage = "The current value 'Joana' at path 'Name' is not equal to the test value 'John'.";
// Act
var testStatus = adapter.TryTest(model, "Name", contractResolver, "John", out var errorMessage);
// Assert
Assert.False(testStatus);
Assert.Equal(expectedErrorMessage, errorMessage);
}
private class Customer
{
public string Name { get; set; }
public int Age { get; set; }
}
}
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