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compose/src/main/kotlin/io/github/kakaocup/compose/node/assertion/ListNodeAssertions.kt
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| package io.github.kakaocup.compose.node.assertion | ||
| import androidx.compose.ui.semantics.SemanticsPropertyKey | ||
| import androidx.compose.ui.semantics.getOrNull | ||
| import androidx.compose.ui.test.SemanticsMatcher | ||
| import androidx.compose.ui.test.assert | ||
| import io.github.kakaocup.compose.node.assertion.NodeAssertions | ||
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| /** | ||
| * Basic assertions for working with lists. | ||
| */ | ||
| interface ListNodeAssertions : NodeAssertions { | ||
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| /** | ||
| * Semantic property for the list length. | ||
| */ | ||
| val lengthSemanticsPropertyKey: SemanticsPropertyKey<Int> | ||
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| /** | ||
| * Checks that the length of the list is equal to [length]. | ||
| * | ||
| * @throws [AssertionError] if the list length is not equal to [length]. | ||
| * @throws [IllegalStateException] if the list does not provide the [lengthSemanticsPropertyKey] property. | ||
| */ | ||
| fun assertLengthEquals(length: Int) { | ||
| delegate.check(NodeAssertions.ComposeBaseAssertionType.ASSERT_VALUE_EQUALS) { | ||
| assert(hasListLength(length)) | ||
| } | ||
| } | ||
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| private fun hasListLength(length: Int): SemanticsMatcher { | ||
| return SemanticsMatcher( | ||
| "The length of the list is expected to be $length, but the actual size is different" | ||
| ) { node -> | ||
| val actualLength = node.config.getOrNull(lengthSemanticsPropertyKey) | ||
| ?: error("List does not contain $lengthSemanticsPropertyKey modifier") | ||
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| actualLength == length | ||
| } | ||
| } | ||
| } |
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54
compose/src/main/kotlin/io/github/kakaocup/compose/node/element/list/KListItemNode.kt
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| package io.github.kakaocup.compose.node.element.list | ||
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| import androidx.compose.ui.semantics.SemanticsNode | ||
| import androidx.compose.ui.test.SemanticsMatcher | ||
| import io.github.kakaocup.compose.node.builder.NodeMatcher | ||
| import io.github.kakaocup.compose.node.core.BaseNode | ||
| import io.github.kakaocup.compose.utilities.checkNotNull | ||
| import io.github.kakaocup.compose.utilities.orGlobal | ||
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| /** | ||
| * Base class for all child nodes within [KListNode]. | ||
| * | ||
| * The constructor is declared as `protected` so that only inheritors have the right to call this constructor. | ||
| * | ||
| * Warning! Manually creating list items is **not necessary**. | ||
| */ | ||
| open class KListItemNode<out T : KListItemNode<T>> protected constructor() : BaseNode<T>() { | ||
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| companion object { | ||
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| /** | ||
| * Method for correctly initializing the necessary parameters of [BaseNode]. | ||
| * This method allows us to keep the main constructor of the element empty, which greatly | ||
| * simplifies the description of subclass elements. | ||
| * | ||
| * @param listNode The root node of the list within which we need to interact with the list item. | ||
| * @param semanticsNode A list of key/value pairs associated with the layout node or its subtree. | ||
| * @param useUnmergedTree If true, the unmerged semantic tree will be used to work with the node. | ||
| */ | ||
| inline fun <reified T : KListItemNode<*>> newInstance( | ||
| listNode: KListNode, | ||
| semanticsNode: SemanticsNode, | ||
| useUnmergedTree: Boolean, | ||
| ): T { | ||
| val instance = T::class.java.getDeclaredConstructor().newInstance() | ||
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| instance.initSemantics( | ||
| semanticsProvider = listNode.semanticsProvider.orGlobal().checkNotNull(), | ||
| nodeMatcher = NodeMatcher( | ||
| matcher = SemanticsMatcher( | ||
| description = "Semantics node id = ${semanticsNode.id}", | ||
| matcher = { it.id == semanticsNode.id }, | ||
| ), | ||
| useUnmergedTree = useUnmergedTree, | ||
| ), | ||
| parentNode = listNode, | ||
| ) | ||
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| return instance | ||
| } | ||
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| } | ||
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| } |
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