/*
 * Copyright (C) 2020 Square, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package app.cash.turbine

import kotlinx.coroutines.CoroutineScope
import kotlinx.coroutines.flow.Flow
import kotlinx.coroutines.flow.flow
import kotlinx.coroutines.suspendCancellableCoroutine

/** A flow that never emits anything. */
fun neverFlow(): Flow<Nothing> = flow {
  suspendCancellableCoroutine {
    // Do nothing!
  }
}

expect fun suspendTest(body: suspend CoroutineScope.() -> Unit)

inline fun <reified T : Throwable> assertThrows(body: () -> Unit): T {
  try {
    body()
  } catch (t: Throwable) {
    if (t is T) {
      return t
    }
    throw t
  }
  throw AssertionError(
    "Expected body to throw ${T::class.simpleName} but it completed successfully"
  )
}

/*
 * Copyright (C) 2020 Square, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package app.cash.turbine

import kotlinx.coroutines.awaitCancellation
import kotlinx.coroutines.CoroutineScope
import kotlinx.coroutines.flow.Flow
import kotlinx.coroutines.flow.flow

/** A flow that never emits anything. */
fun neverFlow(): Flow<Nothing> = flow { awaitCancellation() }

expect fun suspendTest(body: suspend CoroutineScope.() -> Unit)

inline fun <reified T : Throwable> assertThrows(body: () -> Unit): T {
  try {
    body()
  } catch (t: Throwable) {
    if (t is T) {
      return t
    }
    throw t
  }
  throw AssertionError(
    "Expected body to throw ${T::class.simpleName} but it completed successfully"
  )
}

Use awaitCancellation instead of suspendCancellableCoroutine
Use awaitCancellation instead of suspendCancellableCoroutine
cashapp/turbine