1 files changed, 64 insertions, 0 deletions
diff --git a/testing/web-platform/tests/background-fetch/fetch-uploads.https.window.js b/testing/web-platform/tests/background-fetch/fetch-uploads.https.window.js
new file mode 100644
index 0000000000..f93f88a6ba
--- /dev/null
+++ b/testing/web-platform/tests/background-fetch/fetch-uploads.https.window.js
@@ -0,0 +1,64 @@
+// META: script=/service-workers/service-worker/resources/test-helpers.sub.js
+// META: script=resources/utils.js
+'use strict';
+
+// Covers basic functionality provided by BackgroundFetchManager.fetch().
+// Specifically, when `fetch` contains request uploads.
+// https://wicg.github.io/background-fetch/#background-fetch-manager-fetch
+
+backgroundFetchTest(async (test, backgroundFetch) => {
+  const uploadData = 'Background Fetch!';
+  const request =
+      new Request('resources/upload.py', {method: 'POST', body: uploadData});
+
+  const registration = await backgroundFetch.fetch(uniqueId(), request);
+  assert_equals(registration.uploadTotal, uploadData.length);
+
+  const {type, eventRegistration, results} = await getMessageFromServiceWorker();
+  assert_equals(type, 'backgroundfetchsuccess');
+  assert_equals(results.length, 1);
+  assert_equals(eventRegistration.result, 'success');
+  assert_equals(eventRegistration.failureReason, '');
+  assert_equals(eventRegistration.uploaded, uploadData.length);
+  assert_equals(results[0].text, uploadData);
+}, 'Fetch with an upload should work');
+
+backgroundFetchTest(async (test, backgroundFetch) => {
+  const uploadData = 'Background Fetch!';
+  const uploadRequest =
+      new Request('resources/upload.py', {method: 'POST', body: uploadData});
+
+  const registration = await backgroundFetch.fetch(
+      uniqueId(),
+      [uploadRequest, '/common/slow.py']);
+
+    const uploaded = await new Promise(resolve => {
+      registration.onprogress = event => {
+        if (event.target.downloaded === 0)
+          return;
+        // If a progress event with downloaded bytes was received, then
+        // everything was uploaded.
+        resolve(event.target.uploaded);
+      };
+    });
+
+  assert_equals(uploaded, uploadData.length);
+}, 'Progress event includes uploaded bytes');
+
+backgroundFetchTest(async (test, backgroundFetch) => {
+  const uploadRequest1 =
+      new Request('resources/upload.py', {method: 'POST', body: 'upload1'});
+  const uploadRequest2 =
+      new Request('resources/upload.py', {method: 'POST', body: 'upload2'});
+
+  await backgroundFetch.fetch(uniqueId(), [uploadRequest1, uploadRequest2]);
+
+  const {type, eventRegistration, results} = await getMessageFromServiceWorker();
+  assert_equals(type, 'backgroundfetchsuccess');
+  assert_equals(results.length, 2);
+  assert_equals(eventRegistration.result, 'success');
+  assert_equals(eventRegistration.failureReason, '');
+
+  assert_array_equals([results[0].text, results[1].text].sort(),
+                      ['upload1', 'upload2']);
+}, 'Duplicate upload requests work and can be distinguished.');