JetPack组成UI测试按钮ONCLICK

发布于 2025-01-18 05:06:09 字数 1146 浏览 0 评论 0原文

我正在尝试测试 ButtonClick 如何更改用户界面。

测试设置如下：

composeRule.setContent {
    var i by remember { mutableStateOf(0) }
    Button(modifier = Modifier.testTag("TEST"), onClick = { i++ }) {
        Text(text = i.toString())
    }
}

我的实际测试如下所示：

val button = composeRule.onNodeWithTag("TEST")

button.assertTextEquals("0")
button.performClick()
button.printToLog("Test")
button.assertTextEquals("1")

第一个断言通过，但是在检查文本应等于 1 时失败：

java.lang.AssertionError: Failed to assert the following: (Text + EditableText = [1])
Semantics of the node:
Node #2 at (l=0.0, t=66.0, r=176.0, b=165.0)px, Tag: 'TEST'
Role = 'Button'
Text = '[0]'
Actions = [OnClick, GetTextLayoutResult]
MergeDescendants = 'true'
Selector used: (TestTag = 'TEST')

单击后的 printToLog() 如下所示：

Printing with useUnmergedTree = 'false'
Node #2 at (l=0.0, t=66.0, r=176.0, b=165.0)px, Tag: 'TEST'
Role = 'Button'
Text = '[0]'
Actions = [OnClick, GetTextLayoutResult]
MergeDescendants = 'true'

因此，看起来，当执行单击时，内容不会重新组合，或者由于某种原因，单击实际上并未发生。

有谁知道这里会发生什么？

原文

I'm trying to test how a buttonClick would change the UI.

The test is setup like this:

composeRule.setContent {
    var i by remember { mutableStateOf(0) }
    Button(modifier = Modifier.testTag("TEST"), onClick = { i++ }) {
        Text(text = i.toString())
    }
}

And my actual test looks like this:

val button = composeRule.onNodeWithTag("TEST")

button.assertTextEquals("0")
button.performClick()
button.printToLog("Test")
button.assertTextEquals("1")

The first assertion passes, however it fails when checking that the text should equal 1:

java.lang.AssertionError: Failed to assert the following: (Text + EditableText = [1])
Semantics of the node:
Node #2 at (l=0.0, t=66.0, r=176.0, b=165.0)px, Tag: 'TEST'
Role = 'Button'
Text = '[0]'
Actions = [OnClick, GetTextLayoutResult]
MergeDescendants = 'true'
Selector used: (TestTag = 'TEST')

The printToLog() after the click looks like this:

Printing with useUnmergedTree = 'false'
Node #2 at (l=0.0, t=66.0, r=176.0, b=165.0)px, Tag: 'TEST'
Role = 'Button'
Text = '[0]'
Actions = [OnClick, GetTextLayoutResult]
MergeDescendants = 'true'

So it appears that when the click is performed, either the content is not recomposed, or for some reason, the click isn't actually happening.

Does anyone know what might be going on here?

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