public void ProducesMeaningfulErrorMessageIfFileIsNotFound()
{
var attribute = new JsonFileDataAttribute("DoesNotExist.json");
attribute.Invoking(a => a.GetData(methodInfo).ToList())
.Should()
.Throw <FileNotFoundException>()
.WithMessage("*DoesNotExist.json*")
.WithMessage("*Copy Always*")
.WithMessage("*Properties*");
}
public void JsonFileData_JsonFileNotExists()
{
var wrongPath = "./path/not_exists.json";
var expectedErrorMessage = $"Could not find the JSON file located at: {Directory.GetCurrentDirectory()}/{wrongPath}";
var currentMethod = typeof(JsonDataFileAttributeTests).GetMethods().First(m => m.Name == nameof(JsonFileData_JsonFileNotExists));
var test = new JsonFileDataAttribute(wrongPath);
var exception = Assert.Throws <FileNotFoundException>(() => test.GetData(currentMethod));
Assert.Equal(expectedErrorMessage, exception.Message);
}
public void UnusedFieldsAreIgnored()
{
var attribute = new JsonFileDataAttribute("TestData/UnusedFields.json");
var testData = attribute.GetData(methodInfo)
.ToList();
testData.Should().NotBeEmpty();
foreach (var testDataLine in testData)
{
testDataLine.Should()
.HaveCount(2, $"Method {nameof(SampleClass.DoSomething)} has exactly two parameters.");
foreach (var parameter in testDataLine)
{
parameter.Should().NotBeNull();
}
}
}
