docs/articles/nunit-analyzers/NUnit1019.md
| Topic | Value |
|---|---|
| Id | NUnit1019 |
| Severity | Error |
| Enabled | True |
| Category | Structure |
| Code | TestCaseSourceUsesStringAnalyzer |
The source specified by the TestCaseSource must return an I(Async)Enumerable or a type that implements I(Async)Enumerable.
To prevent tests that will fail at runtime due to improper construction.
public class AnalyzeWhenSourceDoesProvideIEnumerable
{
private static readonly int testCases = 42;
[TestCaseSource(nameof(testCases))]
public void Test(int input)
{
}
}
In the sample above, the source specified by TestCaseSource - the field testCases - does not return an
I(Async)Enumerable or a type that implements I(Async)Enumerable, instead it returns an int.
However, sources specified by TestCaseSource
must return an I(Async)Enumerable or a type that implements I(Async)Enumerable..
Change testCases to return an I(Async)Enumerable or a type that implements I(Async)Enumerable:
public class AnalyzeWhenSourceDoesProvideIEnumerable
{
private static readonly int[] testCases = new int[] { 1, 2, 42 };
[TestCaseSource(nameof(testCases))]
public void Test(int input)
{
}
}
Configure the severity per project, for more info see MSDN.
# NUnit1019: The source specified by the TestCaseSource does not return an I(Async)Enumerable or a type that implements I(Async)Enumerable
dotnet_diagnostic.NUnit1019.severity = chosenSeverity
where chosenSeverity can be one of none, silent, suggestion, warning, or error.
#pragma warning disable NUnit1019 // The source specified by the TestCaseSource does not return an I(Async)Enumerable or a type that implements I(Async)Enumerable
Code violating the rule here
#pragma warning restore NUnit1019 // The source specified by the TestCaseSource does not return an I(Async)Enumerable or a type that implements I(Async)Enumerable
Or put this at the top of the file to disable all instances.
#pragma warning disable NUnit1019 // The source specified by the TestCaseSource does not return an I(Async)Enumerable or a type that implements I(Async)Enumerable
[SuppressMessage][System.Diagnostics.CodeAnalysis.SuppressMessage("Structure",
"NUnit1019:The source specified by the TestCaseSource does not return an I(Async)Enumerable or a type that implements I(Async)Enumerable",
Justification = "Reason...")]