playwright/docs/src/test-assertions-csharp-java-python.md

---
id: test-assertions
title: "Assertions"
---

## List of assertions

| Assertion | Description |
| :- | :- |
| [`method: LocatorAssertions.toBeAttached`] | Element is attached |
| [`method: LocatorAssertions.toBeChecked`] | Checkbox is checked |
| [`method: LocatorAssertions.toBeDisabled`] | Element is disabled |
| [`method: LocatorAssertions.toBeEditable`] | Element is editable |
| [`method: LocatorAssertions.toBeEmpty`] | Container is empty |
| [`method: LocatorAssertions.toBeEnabled`] | Element is enabled |
| [`method: LocatorAssertions.toBeFocused`] | Element is focused |
| [`method: LocatorAssertions.toBeHidden`] | Element is not visible |
| [`method: LocatorAssertions.toBeInViewport`] | Element intersects viewport |
| [`method: LocatorAssertions.toBeVisible`] | Element is visible |
| [`method: LocatorAssertions.toContainText`] | Element contains text |
| [`method: LocatorAssertions.toHaveAttribute`] | Element has a DOM attribute |
| [`method: LocatorAssertions.toHaveClass`] | Element has a class property |
| [`method: LocatorAssertions.toHaveCount`] | List has exact number of children |
| [`method: LocatorAssertions.toHaveCSS`] | Element has CSS property |
| [`method: LocatorAssertions.toHaveId`] | Element has an ID |
| [`method: LocatorAssertions.toHaveJSProperty`] | Element has a JavaScript property |
| [`method: LocatorAssertions.toHaveText`] | Element matches text |
| [`method: LocatorAssertions.toHaveValue`] | Input has a value |
| [`method: LocatorAssertions.toHaveValues`] | Select has options selected |
| [`method: PageAssertions.toHaveTitle`] | Page has a title |
| [`method: PageAssertions.toHaveURL`] | Page has a URL |
| [`method: APIResponseAssertions.toBeOK`] | Response has an OK status |

## Custom Expect Message
* langs: python

You can specify a custom error message as a second argument to the `expect` function, for example:

```python
expect(page.get_by_text("Name"), "should be logged in").to_be_visible()
```

The error would look like this:

```bash
    def test_foobar(page: Page) -> None:
>       expect(page.get_by_text("Name"), "should be logged in").to_be_visible()
E       AssertionError: should be logged in
E       Actual value: None
E       Call log:
E       LocatorAssertions.to_be_visible with timeout 5000ms
E       waiting for get_by_text("Name")
E       waiting for get_by_text("Name")

tests/test_foobar.py:22: AssertionError
```

## Setting a custom timeout
* langs: python, csharp

You can specify a custom timeout for assertions either globally or per assertion. The default timeout is 5 seconds.

### Global timeout
* langs: python

```python title="conftest.py"
from playwright.sync_api import expect

expect.set_options(timeout=10_000)
```

### Global timeout
* langs: csharp

<Tabs
  groupId="test-runners"
  defaultValue="nunit"
  values={[
    {label: 'NUnit', value: 'nunit'},
    {label: 'MSTest', value: 'mstest'}
  ]
}>
<TabItem value="nunit">

```csharp title="UnitTest1.cs"
using Microsoft.Playwright;
using Microsoft.Playwright.NUnit;
using NUnit.Framework;

namespace PlaywrightTests;

[Parallelizable(ParallelScope.Self)]
[TestFixture]
public class Tests : PageTest
{
    [OneTimeSetUp]
    public void GlobalSetup()
    {
        SetDefaultExpectTimeout(10_000);
    }
    // ...
}
```

</TabItem>
<TabItem value="mstest">

```csharp title="UnitTest1.cs"
using Microsoft.Playwright;
using Microsoft.Playwright.MSTest;
using Microsoft.VisualStudio.TestTools.UnitTesting;

namespace PlaywrightTests;

[TestClass]
public class UnitTest1 : PageTest
{
    [ClassInitialize]
    public static void GlobalSetup(TestContext context)
    {
        SetDefaultExpectTimeout(10_000);
    }
    // ...
}
```

</TabItem>
</Tabs>

### Per assertion timeout

```python title="test_foobar.py"
from playwright.sync_api import expect

def test_foobar(page: Page) -> None:
    expect(page.get_by_text("Name")).to_be_visible(timeout=10_000)
```

```csharp title="UnitTest1.cs"
await Expect(Page.GetByText("Name")).ToBeVisibleAsync(new() { Timeout = 10_000 });
```