/// <summary>
/// Return an IEnumerable providing test cases for use in
/// running a parameterized test.
/// </summary>
/// <param name="method"></param>
/// <returns></returns>
public IEnumerable GetTestCasesFor(MethodInfo method, Test parentSuite)
{
ArrayList parameterList = new ArrayList();
foreach (ProviderReference providerReference in GetSourcesFor(method, parentSuite))
{
foreach (object source in providerReference.GetInstance())
{
ParameterSet parms;
if (source == null)
{
parms = new ParameterSet();
parms.Arguments = new object[] { null };
}
else
{
parms = source as ParameterSet;
}
if (parms == null)
{
Type sourceType = source.GetType();
if (sourceType.GetInterface("NUnit.Framework.ITestCaseData") != null ||
sourceType.GetInterface("NUnit.Framework.Api.ITestCaseData") != null)
{
parms = ParameterSet.FromDataSource(source);
}
else
{
parms = new ParameterSet();
ParameterInfo[] parameters = method.GetParameters();
if (parameters.Length == 1 && parameters[0].ParameterType.IsAssignableFrom(sourceType))
{
parms.Arguments = new object[] { source }
}
;
else if (source is object[])
{
parms.Arguments = (object[])source;
}
else if (source is Array)
{
Array array = (Array)source;
if (array.Rank == 1)
{
parms.Arguments = new object[array.Length];
for (int i = 0; i < array.Length; i++)
{
parms.Arguments[i] = (object)array.GetValue(i);
}
}
}
else
{
parms.Arguments = new object[] { source }
};
}
}
// This is the only point we can easily check the individual returned
// ParameterSet items from a TestCaseSourceAttribute.
if (parms.ExpectedExceptionName != null)
{
Compatibility.Error(providerReference.ProviderLocation,
"TestCaseSourceAttribute does not support ExpectedException in NUnit 3. Use Assert.Throws or ThrowsConstraint.");
}
if (parms.RunState == RunState.Ignored && string.IsNullOrEmpty(parms.IgnoreReason))
{
Compatibility.Error(providerReference.ProviderLocation,
"TestCaseSourceAttribute requires a reason when case is ignored in NUnit 3.");
}
if (providerReference.ProviderCategory != null)
{
foreach (string cat in providerReference.ProviderCategory.Split(new char[] { ',' }))
{
parms.Categories.Add(cat);
}
}
parameterList.Add(parms);
}
}
return(parameterList);
}