> For the complete documentation index, see [llms.txt](https://docs.shouldly.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.shouldly.org/documentation/equality/haveflag.md).

# Flags

`ShouldHaveFlag` allows you to assert whether an object is an enum and has a flag specified.

Conversely `ShouldNotHaveFlag` allows you to assert the opposite; that an object is an enum but does not have a flag specified.

## ShouldHaveFlag

```cs
var actual = TestEnum.FlagTwo;
var value = TestEnum.FlagOne;
actual.ShouldHaveFlag(value);
```

[snippet source](https://github.com/shouldly/shouldly/blob/master/src/DocumentationExamples/CodeExamples/ShouldHaveFlagNotHaveFlagExamples.ShouldHaveFlag.codeSample.approved.cs#L1-L3) | [anchor](#snippet-ShouldHaveFlagNotHaveFlagExamples.ShouldHaveFlag.codeSample.approved.cs)

**Exception**

```
actual
    should have flag
TestEnum.FlagOne
    but had
TestEnum.FlagTwo
```

## ShouldNotHaveFlag

```cs
var actual = TestEnum.FlagOne;
var value = TestEnum.FlagOne;
actual.ShouldNotHaveFlag(value);
```

[snippet source](https://github.com/shouldly/shouldly/blob/master/src/DocumentationExamples/CodeExamples/ShouldHaveFlagNotHaveFlagExamples.ShouldNotHaveFlag.codeSample.approved.cs#L1-L3) | [anchor](#snippet-ShouldHaveFlagNotHaveFlagExamples.ShouldNotHaveFlag.codeSample.approved.cs)

**Exception**

```
actual
    should not have flag
TestEnum.FlagOne
    but it had
TestEnum.FlagOne
```