1 files changed, 76 insertions, 0 deletions
diff --git a/dom/indexedDB/test/unit/test_open_and_databases.js b/dom/indexedDB/test/unit/test_open_and_databases.js
new file mode 100644
index 0000000000..b13cba067a
--- /dev/null
+++ b/dom/indexedDB/test/unit/test_open_and_databases.js
@@ -0,0 +1,76 @@
+/**
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+/* exported testSteps */
+async function testSteps() {
+  const openInfos = [
+    { name: "foo-a", version: 1 },
+    { name: "foo-b", version: 1 },
+  ];
+
+  info("Creating databases");
+
+  for (let index = 0; index < openInfos.length; index++) {
+    const openInfo = openInfos[index];
+
+    const request = indexedDB.open(openInfo.name, openInfo.version);
+
+    await expectingUpgrade(request);
+
+    const event = await expectingSuccess(request);
+
+    const database = event.target.result;
+
+    database.close();
+  }
+
+  info("Getting databases");
+
+  const databasesPromise = indexedDB.databases();
+
+  info("Opening databases");
+
+  const openPromises = [];
+
+  for (let index = 0; index < openInfos.length; index++) {
+    const openInfo = openInfos[index];
+
+    const request = indexedDB.open(openInfo.name, openInfo.version);
+
+    const promise = expectingSuccess(request);
+
+    openPromises.push(promise);
+  }
+
+  info("Waiting for databases operation to complete");
+
+  const databaseInfos = await databasesPromise;
+
+  info("Verifying databases");
+
+  is(
+    databaseInfos.length,
+    openInfos.length,
+    "The result of databases() should contain one result per database"
+  );
+
+  for (let index = 0; index < openInfos.length; index++) {
+    const openInfo = openInfos[index];
+
+    ok(
+      databaseInfos.some(function (element) {
+        return (
+          element.name === openInfo.name && element.version === openInfo.version
+        );
+      }),
+      "The result of databases() should be a sequence of the correct names " +
+        "and versions of all databases for the origin"
+    );
+  }
+
+  info("Waiting for open operations to complete");
+
+  await Promise.all(openPromises);
+}