From b2eeab1b8cf102fe0fda06a7ec63bf1b5f40995d Mon Sep 17 00:00:00 2001
From: Preetha Appan <preetha@hashicorp.com>
Date: Wed, 8 Nov 2017 17:23:23 -0800
Subject: [PATCH] Unit test (linux only) that tests mounting a device in the
 docker driver

---
 client/driver/docker_test.go | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/client/driver/docker_test.go b/client/driver/docker_test.go
index 2cd26a125..d53679ddc 100644
--- a/client/driver/docker_test.go
+++ b/client/driver/docker_test.go
@@ -1844,3 +1844,34 @@ func TestDockerDriver_Devices_IsInvalidConfig(t *testing.T) {
 		}
 	}
 }
+
+func TestDockerDriver_Device_Success(t *testing.T) {
+	if !tu.IsTravis() {
+		t.Parallel()
+	}
+	if !testutil.DockerIsConnected(t) {
+		t.Skip("Docker not connected")
+	}
+
+	if runtime.GOOS != "linux" {
+		t.Skip("test device mounts only on linux")
+	}
+
+	config := map[string]interface{}{
+		"host_path":      "/dev/random",
+		"container_path": "/dev/myrandom",
+	}
+
+	task, _, _ := dockerTask(t)
+	task.Config["devices"] = []interface{}{config}
+
+	ctx := testDockerDriverContexts(t, task)
+	driver := NewDockerDriver(ctx.DriverCtx)
+	copyImage(t, ctx.ExecCtx.TaskDir, "busybox.tar")
+	defer ctx.AllocDir.Destroy()
+
+	if _, err := driver.Prestart(ctx.ExecCtx, task); err != nil {
+		t.Fatalf("unexpected error:%v", err)
+	}
+
+}