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package scala.scalajs.sbtplugin.test.env
import scala.scalajs.tools.env._
import scala.scalajs.tools.io._
import scala.scalajs.tools.classpath.PartialClasspath
import scala.scalajs.tools.logging._
import org.junit.Test
import org.junit.Assert._
/** A couple of tests that test communication for mix-in into a test suite */
trait ComTests extends AsyncTests {
protected def newJSEnv: ComJSEnv
private def emptyCP = PartialClasspath.empty.resolve()
private def comRunner(code: String) = {
val codeVF = new MemVirtualJSFile("testScript.js").withContent(code)
newJSEnv.comRunner(emptyCP, codeVF,
new ScalaConsoleLogger(Level.Warn), ConsoleJSConsole)
}
private def assertThrowClosed(msg: String, body: => Unit): Unit = {
val thrown = try {
body
false
} catch {
case _: ComJSEnv.ComClosedException =>
true
}
assertTrue(msg, thrown)
}
@Test
def comCloseJVMTest = {
val com = comRunner(s"""
scalajsCom.init(function(msg) { scalajsCom.send("received: " + msg); });
scalajsCom.send("Hello World");
""")
com.start()
assertEquals("Hello World", com.receive())
for (i <- 0 to 10) {
com.send(i.toString)
assertEquals(s"received: $i", com.receive())
}
com.close()
com.await()
}
def comCloseJSTestCommon(timeout: Long) = {
val com = comRunner(s"""
scalajsCom.init(function(msg) {});
for (var i = 0; i < 10; ++i)
scalajsCom.send("msg: " + i);
scalajsCom.close();
""")
com.start()
Thread.sleep(timeout)
for (i <- 0 until 10)
assertEquals(s"msg: $i", com.receive())
assertThrowClosed("Expect receive to throw after closing of channel",
com.receive())
com.close()
com.await()
}
@Test
def comCloseJSTest = comCloseJSTestCommon(0)
@Test
def comCloseJSTestDelayed = comCloseJSTestCommon(1000)
@Test
def doubleCloseTest = {
val n = 10
val com = pingPongRunner(n)
com.start()
for (i <- 0 until n) {
com.send("ping")
assertEquals("pong", com.receive())
}
com.close()
com.await()
}
@Test
def multiEnvTest = {
val n = 10
val envs = List.fill(5)(pingPongRunner(10))
envs.foreach(_.start())
val ops = List[ComJSRunner => Unit](
_.send("ping"),
com => assertEquals("pong", com.receive())
)
for {
i <- 0 until n
env <- envs
op <- ops
} op(env)
envs.foreach(_.close())
envs.foreach(_.await())
}
private def pingPongRunner(count: Int) = {
comRunner(s"""
var seen = 0;
scalajsCom.init(function(msg) {
scalajsCom.send("pong");
if (++seen >= $count)
scalajsCom.close();
});
""")
}
@Test
def largeMessageTest = {
// 1KB data
val baseMsg = new String(Array.tabulate(512)(_.toChar))
val baseLen = baseMsg.length
// Max message size: 1KB * 2^(2*iters+1) = 1MB
val iters = 4
val com = comRunner("""
scalajsCom.init(function(msg) {
scalajsCom.send(msg + msg);
});
""")
com.start()
com.send(baseMsg)
def resultFactor(iters: Int) = Math.pow(2, 2 * iters + 1).toInt
for (i <- 0 until iters) {
val reply = com.receive()
val factor = resultFactor(i)
assertEquals(baseLen * factor, reply.length)
for (j <- 0 until factor)
assertEquals(baseMsg, reply.substring(j * baseLen, (j + 1) * baseLen))
com.send(reply + reply)
}
val lastLen = com.receive().length
assertEquals(baseLen * resultFactor(iters), lastLen)
com.close()
com.await()
}
@Test
def noInitTest = {
val com = comRunner("")
com.start()
com.send("Dummy")
com.close()
com.await()
}
@Test
def stopTest = {
val com = comRunner(s"""scalajsCom.init(function(msg) {});""")
com.start()
// Make sure the VM doesn't terminate.
Thread.sleep(1000)
assertTrue("VM should still be running", com.isRunning)
// Stop VM instead of closing channel
com.stop()
try {
com.await()
fail("Stopped VM should be in failure state")
} catch {
case _: Throwable =>
}
}
}
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