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/*
 * Copyright 2015-2024 the original author or authors.
 *
 * All rights reserved. This program and the accompanying materials are
 * made available under the terms of the Eclipse Public License v2.0 which
 * accompanies this distribution and is available at
 *
 * https://www.eclipse.org/legal/epl-v20.html
 */
@file:API(status = STABLE, since = "5.7")

package org.junit.jupiter.api

import org.apiguardian.api.API
import org.apiguardian.api.API.Status.EXPERIMENTAL
import org.apiguardian.api.API.Status.STABLE
import org.junit.jupiter.api.function.Executable
import org.junit.jupiter.api.function.ThrowingSupplier
import java.time.Duration
import java.util.function.Supplier
import java.util.stream.Stream
import kotlin.contracts.ExperimentalContracts
import kotlin.contracts.contract

/**
 * @see Assertions.fail
 */
fun fail(
    message: String?,
    throwable: Throwable? = null
): Nothing = Assertions.fail(message, throwable)

/**
 * @see Assertions.fail
 */
fun fail(message: (() -> String)?): Nothing = Assertions.fail(message)

/**
 * @see Assertions.fail
 */
fun fail(throwable: Throwable?): Nothing = Assertions.fail(throwable)

/**
 * [Stream] of functions to be executed.
 */
private typealias ExecutableStream = Stream<() -> Unit>

private fun ExecutableStream.convert() = map { Executable(it) }

/**
 * @see Assertions.assertAll
 */
fun assertAll(executables: ExecutableStream) = Assertions.assertAll(executables.convert())

/**
 * @see Assertions.assertAll
 */
fun assertAll(
    heading: String?,
    executables: ExecutableStream
) = Assertions.assertAll(heading, executables.convert())

/**
 * [Collection] of functions to be executed.
 */
private typealias ExecutableCollection = Collection<() -> Unit>

private fun ExecutableCollection.convert() = map { Executable(it) }

/**
 * @see Assertions.assertAll
 */
fun assertAll(executables: ExecutableCollection) = Assertions.assertAll(executables.convert())

/**
 * @see Assertions.assertAll
 */
fun assertAll(
    heading: String?,
    executables: ExecutableCollection
) = Assertions.assertAll(heading, executables.convert())

/**
 * @see Assertions.assertAll
 */
fun assertAll(vararg executables: () -> Unit) = assertAll(executables.toList().stream())

/**
 * @see Assertions.assertAll
 */
fun assertAll(
    heading: String?,
    vararg executables: () -> Unit
) = assertAll(heading, executables.toList().stream())

/**
 * Example usage:
 * ```kotlin
 * val exception = assertThrows {
 *     throw IllegalArgumentException("Talk to a duck")
 * }
 * assertEquals("Talk to a duck", exception.message)
 * ```
 * @see Assertions.assertThrows
 */
inline fun  assertThrows(executable: () -> Unit): T {
    val throwable: Throwable? =
        try {
            executable()
        } catch (caught: Throwable) {
            caught
        } as? Throwable

    return Assertions.assertThrows(T::class.java) {
        if (throwable != null) {
            throw throwable
        }
    }
}

/**
 * Example usage:
 * ```kotlin
 * val exception = assertThrows("Should throw an Exception") {
 *     throw IllegalArgumentException("Talk to a duck")
 * }
 * assertEquals("Talk to a duck", exception.message)
 * ```
 * @see Assertions.assertThrows
 */
inline fun  assertThrows(
    message: String,
    executable: () -> Unit
): T = assertThrows({ message }, executable)

/**
 * Example usage:
 * ```kotlin
 * val exception = assertThrows({ "Should throw an Exception" }) {
 *     throw IllegalArgumentException("Talk to a duck")
 * }
 * assertEquals("Talk to a duck", exception.message)
 * ```
 * @see Assertions.assertThrows
 */
inline fun  assertThrows(
    noinline message: () -> String,
    executable: () -> Unit
): T {
    val throwable: Throwable? =
        try {
            executable()
        } catch (caught: Throwable) {
            caught
        } as? Throwable

    return Assertions.assertThrows(
        T::class.java,
        {
            if (throwable != null) {
                throw throwable
            }
        },
        Supplier(message)
    )
}

/**
 * Example usage:
 * ```kotlin
 * val result = assertDoesNotThrow {
 *     // Code block that is expected to not throw an exception
 * }
 * ```
 * @see Assertions.assertDoesNotThrow
 * @param R the result type of the [executable]
 */
@API(status = STABLE, since = "5.11")
inline fun  assertDoesNotThrow(executable: () -> R): R = Assertions.assertDoesNotThrow(evaluateAndWrap(executable))

/**
 * Example usage:
 * ```kotlin
 * val result = assertDoesNotThrow("Should not throw an exception") {
 *     // Code block that is expected to not throw an exception
 * }
 * ```
 * @see Assertions.assertDoesNotThrow
 * @param R the result type of the [executable]
 */
@API(status = STABLE, since = "5.11")
inline fun  assertDoesNotThrow(
    message: String,
    executable: () -> R
): R = assertDoesNotThrow({ message }, executable)

/**
 * Example usage:
 * ```kotlin
 * val result = assertDoesNotThrow({ "Should not throw an exception" }) {
 *     // Code block that is expected to not throw an exception
 * }
 * ```
 * @see Assertions.assertDoesNotThrow
 * @param R the result type of the [executable]
 */
@API(status = STABLE, since = "5.11")
inline fun  assertDoesNotThrow(
    noinline message: () -> String,
    executable: () -> R
): R =
    Assertions.assertDoesNotThrow(
        evaluateAndWrap(executable),
        Supplier(message)
    )

@PublishedApi
internal inline fun  evaluateAndWrap(executable: () -> R): ThrowingSupplier =
    try {
        val result = executable()
        ThrowingSupplier { result }
    } catch (throwable: Throwable) {
        ThrowingSupplier { throw throwable }
    }

/**
 * Example usage:
 * ```kotlin
 * val result = assertTimeout(Duration.seconds(1)) {
 *     // Code block that is being timed.
 * }
 * ```
 * @see Assertions.assertTimeout
 * @paramR the result of the [executable].
 */
@API(status = STABLE, since = "5.11")
fun  assertTimeout(
    timeout: Duration,
    executable: () -> R
): R = Assertions.assertTimeout(timeout, executable)

/**
 * Example usage:
 * ```kotlin
 * val result = assertTimeout(Duration.seconds(1), "Should only take one second") {
 *     // Code block that is being timed.
 * }
 * ```
 * @see Assertions.assertTimeout
 * @paramR the result of the [executable].
 */
@API(status = STABLE, since = "5.11")
fun  assertTimeout(
    timeout: Duration,
    message: String,
    executable: () -> R
): R = Assertions.assertTimeout(timeout, executable, message)

/**
 * Example usage:
 * ```kotlin
 * val result = assertTimeout(Duration.seconds(1), { "Should only take one second" }) {
 *     // Code block that is being timed.
 * }
 * ```
 * @see Assertions.assertTimeout
 * @paramR the result of the [executable].
 */
@API(status = STABLE, since = "5.11")
fun  assertTimeout(
    timeout: Duration,
    message: () -> String,
    executable: () -> R
): R = Assertions.assertTimeout(timeout, executable, message)

/**
 * Example usage:
 * ```kotlin
 * val result = assertTimeoutPreemptively(Duration.seconds(1)) {
 *     // Code block that is being timed.
 * }
 * ```
 * @see Assertions.assertTimeoutPreemptively
 * @paramR the result of the [executable].
 */
@API(status = STABLE, since = "5.11")
fun  assertTimeoutPreemptively(
    timeout: Duration,
    executable: () -> R
): R = Assertions.assertTimeoutPreemptively(timeout, executable)

/**
 * Example usage:
 * ```kotlin
 * val result = assertTimeoutPreemptively(Duration.seconds(1), "Should only take one second") {
 *     // Code block that is being timed.
 * }
 * ```
 * @see Assertions.assertTimeoutPreemptively
 * @paramR the result of the [executable].
 */
@API(status = STABLE, since = "5.11")
fun  assertTimeoutPreemptively(
    timeout: Duration,
    message: String,
    executable: () -> R
): R = Assertions.assertTimeoutPreemptively(timeout, executable, message)

/**
 * Example usage:
 * ```kotlin
 * val result = assertTimeoutPreemptively(Duration.seconds(1), { "Should only take one second" }) {
 *     // Code block that is being timed.
 * }
 * ```
 * @see Assertions.assertTimeoutPreemptively
 * @paramR the result of the [executable].
 */
@API(status = STABLE, since = "5.11")
fun  assertTimeoutPreemptively(
    timeout: Duration,
    message: () -> String,
    executable: () -> R
): R = Assertions.assertTimeoutPreemptively(timeout, executable, message)

/**
 * Example usage:
 * ```kotlin
 * assertInstanceOf(list, "List should support fast random access")
 * ```
 * @see Assertions.assertInstanceOf
 * @since 5.11
 */
@OptIn(ExperimentalContracts::class)
@API(status = EXPERIMENTAL, since = "5.11")
inline fun  assertInstanceOf(
    actualValue: Any?,
    message: String? = null
): T {
    contract {
        returns() implies (actualValue is T)
    }
    return Assertions.assertInstanceOf(T::class.java, actualValue, message)
}

/*
 * @see Assertions.assertInstanceOf
 * @since 5.11
 */
@OptIn(ExperimentalContracts::class)
@API(status = EXPERIMENTAL, since = "5.11")
inline fun  assertInstanceOf(
    actualValue: Any?,
    noinline message: () -> String
): T {
    contract {
        returns() implies (actualValue is T)
    }
    return Assertions.assertInstanceOf(T::class.java, actualValue, message)
}




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