1 files changed, 25 insertions, 0 deletions
diff --git a/testing/web-platform/tests/serial/serial_getPorts.https.any.js b/testing/web-platform/tests/serial/serial_getPorts.https.any.js
new file mode 100644
index 0000000000..03ab5f7e26
--- /dev/null
+++ b/testing/web-platform/tests/serial/serial_getPorts.https.any.js
@@ -0,0 +1,25 @@
+// META: script=/resources/test-only-api.js
+// META: script=/serial/resources/common.js
+// META: script=resources/automation.js
+
+serial_test(async (t, fake) => {
+  fake.addPort();
+  fake.addPort();
+
+  let ports = await navigator.serial.getPorts();
+  assert_equals(ports.length, 2);
+  assert_true(ports[0] instanceof SerialPort);
+  assert_true(ports[1] instanceof SerialPort);
+}, 'getPorts() returns the set of configured fake ports');
+
+serial_test(async (t, fake) => {
+  fake.addPort();
+
+  let portsFirst = await navigator.serial.getPorts();
+  assert_equals(portsFirst.length, 1, 'first call returns one port');
+  assert_true(portsFirst[0] instanceof SerialPort);
+  let portsSecond = await navigator.serial.getPorts();
+  assert_equals(portsSecond.length, 1, 'second call returns one port');
+  assert_true(portsSecond[0] instanceof SerialPort);
+  assert_true(portsFirst[0] === portsSecond[0]);
+}, 'getPorts() returns the same port objects every time');