SemanticsMatcher

public class SemanticsMatcher(
    public val description: String,
    private val matcher: (SemanticsNode) -> Boolean,
)

Wrapper for semantics matcher lambdas that allows to build string explaining to the developer what conditions were being tested.

Functions

matches

public fun matches(node: SemanticsNode): Boolean

Returns whether the given node is matched by this matcher.

matchesAny

public fun matchesAny(nodes: Iterable<SemanticsNode>): Boolean

Returns whether at least one of the given nodes is matched by this matcher.

and

public infix fun and(other: SemanticsMatcher): SemanticsMatcher

or

public infix fun or(other: SemanticsMatcher): SemanticsMatcher

not

public operator fun not(): SemanticsMatcher

Members

Companion

public companion object

Functions

expectValue

public fun <T> expectValue(
            key: SemanticsPropertyKey<T>,
            expectedValue: T,
        ): SemanticsMatcher

Builds a predicate that tests whether the value of the given key is equal to expectedValue.

keyIsDefined

public fun <T> keyIsDefined(key: SemanticsPropertyKey<T>): SemanticsMatcher

Builds a predicate that tests whether the given key is defined in semantics.

keyNotDefined

public fun <T> keyNotDefined(key: SemanticsPropertyKey<T>): SemanticsMatcher

Builds a predicate that tests whether the given key is NOT defined in semantics.