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package scala.async
package neg
import org.junit.runner.RunWith
import org.junit.runners.JUnit4
import org.junit.Test
@RunWith(classOf[JUnit4])
class NakedAwait {
@Test
def `await only allowed in async neg`() {
expectError("`await` must be enclosed in an `async` block", "-deprecation -Xfatal-warnings") {
"""
| import _root_.scala.async.Async._
| await[Any](null)
""".stripMargin
}
}
@Test
def `await not allowed in by-name argument`() {
expectError("await must not be used under a by-name argument.") {
"""
| import _root_.scala.async.AsyncId._
| def foo(a: Int)(b: => Int) = 0
| async { foo(0)(await(0)) }
""".stripMargin
}
}
@Test
def `await not allowed in boolean short circuit argument 1`() {
expectError("await must not be used under a by-name argument.") {
"""
| import _root_.scala.async.AsyncId._
| async { true && await(false) }
""".stripMargin
}
}
@Test
def `await not allowed in boolean short circuit argument 2`() {
expectError("await must not be used under a by-name argument.") {
"""
| import _root_.scala.async.AsyncId._
| async { true || await(false) }
""".stripMargin
}
}
@Test
def nestedObject() {
expectError("await must not be used under a nested object.") {
"""
| import _root_.scala.async.AsyncId._
| async { object Nested { await(false) } }
""".stripMargin
}
}
@Test
def nestedTrait() {
expectError("await must not be used under a nested trait.") {
"""
| import _root_.scala.async.AsyncId._
| async { trait Nested { await(false) } }
""".stripMargin
}
}
@Test
def nestedClass() {
expectError("await must not be used under a nested class.") {
"""
| import _root_.scala.async.AsyncId._
| async { class Nested { await(false) } }
""".stripMargin
}
}
@Test
def nestedFunction() {
expectError("await must not be used under a nested function.") {
"""
| import _root_.scala.async.AsyncId._
| async { () => { await(false) } }
""".stripMargin
}
}
}
|
