---
title: "assertTopPositionInRootIsEqualTo"
description: "Asserts that the layout of this node has the top position in the root composable that is equal to the given position."
type: "function"
lastmod: "2026-06-18T10:32:52.430846Z"
---
## API Reference

### assertTopPositionInRootIsEqualTo

> Source set: Android

```kotlin
@CanIgnoreReturnValue
public fun SubspaceSemanticsNodeInteraction.assertTopPositionInRootIsEqualTo(
    expectedTop: Dp
): SubspaceSemanticsNodeInteraction
```

Asserts that the layout of this node has the top position in the root composable that is equal to
the given position.

#### Parameters

| | |
| --- | --- |
| expectedTop | The top position to assert. |