From ae59532f12f3ef0d71275b08d006bf67d181a152 Mon Sep 17 00:00:00 2001
From: Ben Newman <ben@meteor.com>
Date: Sat, 4 Mar 2017 16:14:56 -0500
Subject: [PATCH] Delete MeteorDynamicImportCache database before running
 tests.

Also run the tests a third time without deleting the database, to exercise
the caching logic.
---
 tools/tests/apps/dynamic-import/tests.js | 15 +++++++++++++++
 tools/tests/dynamic-import.js            |  7 +++++++
 2 files changed, 22 insertions(+)

diff --git a/tools/tests/apps/dynamic-import/tests.js b/tools/tests/apps/dynamic-import/tests.js
index 0905ce7386..03a9b39d03 100644
--- a/tools/tests/apps/dynamic-import/tests.js
+++ b/tools/tests/apps/dynamic-import/tests.js
@@ -1,6 +1,21 @@
 import assert from "assert";
 
 describe("dynamic import(...)", function () {
+  if (global.indexedDB) {
+    const saveCache = process.env.METEOR_SAVE_DYNAMIC_IMPORT_CACHE;
+    if (! (saveCache && JSON.parse(saveCache))) {
+      it("cleared the IndexedDB cache", function () {
+        return new Promise((resolve, reject) => {
+          const deleteRequest =
+            global.indexedDB.deleteDatabase("MeteorDynamicImportCache");
+          deleteRequest.onerror =
+          deleteRequest.onblocked =
+          deleteRequest.onsuccess = resolve;
+        });
+      });
+    }
+  }
+
   it("import same module both statically and dynamically", function () {
     import moment from "moment";
     return import("./imports/date").then(date => {
diff --git a/tools/tests/dynamic-import.js b/tools/tests/dynamic-import.js
index e667952907..fc80941d39 100644
--- a/tools/tests/dynamic-import.js
+++ b/tools/tests/dynamic-import.js
@@ -13,6 +13,13 @@ selftest.define("dynamic import(...) in production", function () {
   s.cd("dynamic-import-test-app-prod", run.bind(s, true));
 });
 
+selftest.define("dynamic import(...) with cache", function () {
+  const s = new Sandbox();
+  s.createApp("dynamic-import-test-app-cache", "dynamic-import");
+  s.set("METEOR_SAVE_DYNAMIC_IMPORT_CACHE", "true");
+  s.cd("dynamic-import-test-app-cache", run.bind(s, true));
+});
+
 function run(isProduction) {
   const sandbox = this;
   const args = [