Merge commit '2c4b142503bd2d871e6818b5cab8c38627d9e4a0' as 'examples/scala-js'

1 files changed, 33 insertions, 0 deletions

diff --git a/examples/scala-js/test-suite/src/test/scala/scala/scalajs/testsuite/utils/TestDetector.scala b/examples/scala-js/test-suite/src/test/scala/scala/scalajs/testsuite/utils/TestDetector.scala
new file mode 100644
index 0000000..ad67a95
--- /dev/null
+++ b/examples/scala-js/test-suite/src/test/scala/scala/scalajs/testsuite/utils/TestDetector.scala
@@ -0,0 +1,33 @@
+package scala.scalajs.testsuite.utils
+
+import scala.scalajs.js
+import js.annotation.JSExport
+import js.JSConverters._
+
+/** An ad-hoc but centralized way to detect tests in this test suite */
+@JSExport("scalajs.TestDetector")
+object TestDetector {
+
+  private final val basePackage = "scala.scalajs.testsuite"
+
+  def detectTestNames(): List[String] = detectTestsInternal().map(_._2).toList
+
+  @JSExport
+  def loadDetectedTests(): Unit = detectTestsInternal().foreach(_._1())
+
+  private def detectTestsInternal() = {
+    val parts = basePackage.split('.')
+    val base = parts.foldLeft(js.Dynamic.global)(_.selectDynamic(_))
+
+    // We make sure to use only exported modules (not classes) by checking
+    // .prototype of the exporters.
+    for {
+      pName    <- js.Object.properties(base)
+      testName <- js.Object.properties(base.selectDynamic(pName))
+      test      = base.selectDynamic(pName).selectDynamic(testName)
+      if js.Object.getPrototypeOf(test.prototype.asInstanceOf[js.Object]) eq
+         js.Object.asInstanceOf[js.Dynamic].prototype
+    } yield (test, s"$basePackage.$pName.$testName")
+  }
+
+}