From cc86f8d609969b40793a227b9af4b41a18657dfb Mon Sep 17 00:00:00 2001
From: Jakob Odersky <jakob@driver.xyz>
Date: Thu, 22 Mar 2018 15:47:42 -0700
Subject: Add blob storage abstractions

---
 .../scala/xyz/driver/core/BlobStorageTest.scala    | 88 ++++++++++++++++++++++
 1 file changed, 88 insertions(+)
 create mode 100644 src/test/scala/xyz/driver/core/BlobStorageTest.scala

(limited to 'src/test/scala/xyz/driver/core/BlobStorageTest.scala')

diff --git a/src/test/scala/xyz/driver/core/BlobStorageTest.scala b/src/test/scala/xyz/driver/core/BlobStorageTest.scala
new file mode 100644
index 0000000..65f9cbc
--- /dev/null
+++ b/src/test/scala/xyz/driver/core/BlobStorageTest.scala
@@ -0,0 +1,88 @@
+package xyz.driver.core
+
+import java.nio.file.Files
+
+import akka.actor.ActorSystem
+import akka.stream.ActorMaterializer
+import akka.stream.scaladsl._
+import akka.util.ByteString
+import org.scalatest._
+import org.scalatest.concurrent.ScalaFutures
+import xyz.driver.core.storage.{BlobStorage, FileSystemBlobStorage}
+
+import scala.concurrent.Future
+import scala.concurrent.duration._
+
+class BlobStorageTest extends FlatSpec with ScalaFutures {
+
+  implicit val patientce = PatienceConfig(timeout = 100.seconds)
+
+  implicit val system = ActorSystem("blobstorage-test")
+  implicit val mat    = ActorMaterializer()
+  import system.dispatcher
+
+  def storageBehaviour(storage: BlobStorage) = {
+    val key  = "foo"
+    val data = "hello world".getBytes
+    it should "upload data" in {
+      assert(storage.exists(key).futureValue === false)
+      assert(storage.uploadContent(key, data).futureValue === key)
+      assert(storage.exists(key).futureValue === true)
+    }
+    it should "download data" in {
+      val content = storage.content(key).futureValue
+      assert(content.isDefined)
+      assert(content.get === data)
+    }
+    it should "not download non-existing data" in {
+      assert(storage.content("bar").futureValue.isEmpty)
+    }
+    it should "overwrite an existing key" in {
+      val newData = "new string".getBytes("utf-8")
+      assert(storage.uploadContent(key, newData).futureValue === key)
+      assert(storage.content(key).futureValue.get === newData)
+    }
+    it should "upload a file" in {
+      val tmp = Files.createTempFile("testfile", "txt")
+      Files.write(tmp, data)
+      assert(storage.uploadFile(key, tmp).futureValue === key)
+      Files.delete(tmp)
+    }
+    it should "upload content" in {
+      val text = "foobar"
+      val src = Source
+        .single(text)
+        .map(l => ByteString(l))
+      src.runWith(storage.upload(key).futureValue).futureValue
+      assert(storage.content(key).futureValue.map(_.toSeq) === Some("foobar".getBytes.toSeq))
+    }
+    it should "delete content" in {
+      assert(storage.exists(key).futureValue)
+      storage.delete(key).futureValue
+      assert(!storage.exists(key).futureValue)
+    }
+    it should "download content" in {
+      storage.uploadContent(key, data) futureValue
+      val srcOpt = storage.download(key).futureValue
+      assert(srcOpt.isDefined)
+      val src                          = srcOpt.get
+      val content: Future[Array[Byte]] = src.runWith(Sink.fold(Array[Byte]())(_ ++ _))
+      assert(content.futureValue === data)
+    }
+    it should "list keys" in {
+      assert(storage.list("").futureValue === Set(key))
+      storage.uploadContent("a/a.txt", data).futureValue
+      storage.uploadContent("a/b", data).futureValue
+      storage.uploadContent("c/d", data).futureValue
+      storage.uploadContent("d", data).futureValue
+      assert(storage.list("").futureValue === Set(key, "a", "c", "d"))
+      assert(storage.list("a").futureValue === Set("a/a.txt", "a/b"))
+      assert(storage.list("a").futureValue === Set("a/a.txt", "a/b"))
+      assert(storage.list("c").futureValue === Set("c/d"))
+    }
+  }
+
+  "File system storage" should behave like storageBehaviour(
+    new FileSystemBlobStorage(Files.createTempDirectory("test")))
+
+}
-- 
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