https://github.com/python/cpython/commit/99088ab081279329b8362e1c24533fa0be303e6f
commit: 99088ab081279329b8362e1c24533fa0be303e6f
branch: main
author: Russell Keith-Magee <russ...@keith-magee.com>
committer: freakboy3742 <russ...@keith-magee.com>
date: 2025-02-25T14:49:05+08:00
summary:
gh-130292: Allow for empty simulator list when running iOS testbed (#130388)
Adds error handling when there are no pre-existing test simulators.
files:
A Misc/NEWS.d/next/Tests/2025-02-20-13-50-07.gh-issue-130292.RvK2Ou.rst
M iOS/testbed/__main__.py
diff --git
a/Misc/NEWS.d/next/Tests/2025-02-20-13-50-07.gh-issue-130292.RvK2Ou.rst
b/Misc/NEWS.d/next/Tests/2025-02-20-13-50-07.gh-issue-130292.RvK2Ou.rst
new file mode 100644
index 00000000000000..0805058544abac
--- /dev/null
+++ b/Misc/NEWS.d/next/Tests/2025-02-20-13-50-07.gh-issue-130292.RvK2Ou.rst
@@ -0,0 +1,2 @@
+The iOS testbed will now run successfully on a machine that has not
+previously run Xcode tests (such as CI configurations).
diff --git a/iOS/testbed/__main__.py b/iOS/testbed/__main__.py
index 08fbe90a1c6aef..d12a5ab065b517 100644
--- a/iOS/testbed/__main__.py
+++ b/iOS/testbed/__main__.py
@@ -82,19 +82,29 @@ async def async_check_output(*args, **kwargs):
# Return a list of UDIDs associated with booted simulators
async def list_devices():
- # List the testing simulators, in JSON format
- raw_json = await async_check_output(
- "xcrun", "simctl", "--set", "testing", "list", "-j"
- )
- json_data = json.loads(raw_json)
-
- # Filter out the booted iOS simulators
- return [
- simulator["udid"]
- for runtime, simulators in json_data["devices"].items()
- for simulator in simulators
- if runtime.split(".")[-1].startswith("iOS") and simulator["state"] ==
"Booted"
- ]
+ try:
+ # List the testing simulators, in JSON format
+ raw_json = await async_check_output(
+ "xcrun", "simctl", "--set", "testing", "list", "-j"
+ )
+ json_data = json.loads(raw_json)
+
+ # Filter out the booted iOS simulators
+ return [
+ simulator["udid"]
+ for runtime, simulators in json_data["devices"].items()
+ for simulator in simulators
+ if runtime.split(".")[-1].startswith("iOS") and simulator["state"]
== "Booted"
+ ]
+ except subprocess.CalledProcessError as e:
+ # If there's no ~/Library/Developer/XCTestDevices folder (which is the
+ # case on fresh installs, and in some CI environments), `simctl list`
+ # returns error code 1, rather than an empty list. Handle that case,
+ # but raise all other errors.
+ if e.returncode == 1:
+ return []
+ else:
+ raise
async def find_device(initial_devices):
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