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gh-126925: Modify how iOS test results are gathered - #127592
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December 4, 2024 07:17
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!buildbot iOS |
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🤖 New build scheduled with the buildbot fleet by @freakboy3742 for commit 60584e0 🤖 The command will test the builders whose names match following regular expression: The builders matched are:
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Moving to draft because of the test failures on macOS buils |
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December 4, 2024 07:34
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!buildbot iOS |
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🤖 New build scheduled with the buildbot fleet by @freakboy3742 for commit 89bb435 🤖 The command will test the builders whose names match following regular expression: The builders matched are:
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December 5, 2024 06:38
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I've now resolved the testing issue; I've also added some documentation for the new capabilities. |
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Dec 9, 2024
…honGH-127592) Adds a `use_system_log` config item to enable stdout/stderr redirection for Apple platforms. This log streaming is then used by a new iOS test runner script, allowing the display of test suite output at runtime. The iOS test runner script can be used by any Python project, not just the CPython test suite. (cherry picked from commit 2041a95) Co-authored-by: Russell Keith-Magee <russell@keith-magee.com>
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GH-127754 is a backport of this pull request to the 3.13 branch. |
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#127754) Adds a `use_system_log` config item to enable stdout/stderr redirection for Apple platforms. This log streaming is then used by a new iOS test runner script, allowing the display of test suite output at runtime. The iOS test runner script can be used by any Python project, not just the CPython test suite. (cherry picked from commit 2041a95)
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Dec 13, 2024
…onGH-127592) (python#127754) Adds a `use_system_log` config item to enable stdout/stderr redirection for Apple platforms. This log streaming is then used by a new iOS test runner script, allowing the display of test suite output at runtime. The iOS test runner script can be used by any Python project, not just the CPython test suite. (cherry picked from commit 2041a95)
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Dec 13, 2024
…honGH-127592) (python#127754) Adds a `use_system_log` config item to enable stdout/stderr redirection for Apple platforms. This log streaming is then used by a new iOS test runner script, allowing the display of test suite output at runtime. The iOS test runner script can be used by any Python project, not just the CPython test suite. (cherry picked from commit 2041a95)
freakboy3742
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Dec 13, 2024
…honGH-127592) (python#127754) Adds a `use_system_log` config item to enable stdout/stderr redirection for Apple platforms. This log streaming is then used by a new iOS test runner script, allowing the display of test suite output at runtime. The iOS test runner script can be used by any Python project, not just the CPython test suite. (cherry picked from commit 2041a95)
freakboy3742
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Dec 13, 2024
…honGH-127592) (python#127754) Adds a `use_system_log` config item to enable stdout/stderr redirection for Apple platforms. This log streaming is then used by a new iOS test runner script, allowing the display of test suite output at runtime. The iOS test runner script can be used by any Python project, not just the CPython test suite. (cherry picked from commit 2041a95)
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Dec 13, 2024
) Adds a `use_system_log` config item to enable stdout/stderr redirection for Apple platforms. This log streaming is then used by a new iOS test runner script, allowing the display of test suite output at runtime. The iOS test runner script can be used by any Python project, not just the CPython test suite.
freakboy3742
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Dec 13, 2024
…honGH-127592) (python#127754) Adds a `use_system_log` config item to enable stdout/stderr redirection for Apple platforms. This log streaming is then used by a new iOS test runner script, allowing the display of test suite output at runtime. The iOS test runner script can be used by any Python project, not just the CPython test suite. (cherry picked from commit 2041a95)
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Jan 8, 2025
) Adds a `use_system_log` config item to enable stdout/stderr redirection for Apple platforms. This log streaming is then used by a new iOS test runner script, allowing the display of test suite output at runtime. The iOS test runner script can be used by any Python project, not just the CPython test suite.
This was referenced Mar 12, 2025
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…honGH-127592) (python#127754) Adds a `use_system_log` config item to enable stdout/stderr redirection for Apple platforms. This log streaming is then used by a new iOS test runner script, allowing the display of test suite output at runtime. The iOS test runner script can be used by any Python project, not just the CPython test suite. (cherry picked from commit 2041a95)
freakboy3742
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Feb 3, 2026
…honGH-127592) (python#127754) Adds a `use_system_log` config item to enable stdout/stderr redirection for Apple platforms. This log streaming is then used by a new iOS test runner script, allowing the display of test suite output at runtime. The iOS test runner script can be used by any Python project, not just the CPython test suite. (cherry picked from commit 2041a95)
freakboy3742
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Feb 3, 2026
…honGH-127592) (python#127754) Adds a `use_system_log` config item to enable stdout/stderr redirection for Apple platforms. This log streaming is then used by a new iOS test runner script, allowing the display of test suite output at runtime. The iOS test runner script can be used by any Python project, not just the CPython test suite. (cherry picked from commit 2041a95)
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Jun 12, 2026
…honGH-127592) (python#127754) Adds a `use_system_log` config item to enable stdout/stderr redirection for Apple platforms. This log streaming is then used by a new iOS test runner script, allowing the display of test suite output at runtime. The iOS test runner script can be used by any Python project, not just the CPython test suite. (cherry picked from commit 2041a95)
freakboy3742
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Jun 12, 2026
…honGH-127592) (python#127754) Adds a `use_system_log` config item to enable stdout/stderr redirection for Apple platforms. This log streaming is then used by a new iOS test runner script, allowing the display of test suite output at runtime. The iOS test runner script can be used by any Python project, not just the CPython test suite. (cherry picked from commit 2041a95)
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Oct 2, 2026
…honGH-127592) (python#127754) Adds a `use_system_log` config item to enable stdout/stderr redirection for Apple platforms. This log streaming is then used by a new iOS test runner script, allowing the display of test suite output at runtime. The iOS test runner script can be used by any Python project, not just the CPython test suite. (cherry picked from commit 2041a95)
freakboy3742
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Oct 2, 2026
…honGH-127592) (python#127754) Adds a `use_system_log` config item to enable stdout/stderr redirection for Apple platforms. This log streaming is then used by a new iOS test runner script, allowing the display of test suite output at runtime. The iOS test runner script can be used by any Python project, not just the CPython test suite. (cherry picked from commit 2041a95)
freakboy3742
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Oct 12, 2026
…honGH-127592) (python#127754) Adds a `use_system_log` config item to enable stdout/stderr redirection for Apple platforms. This log streaming is then used by a new iOS test runner script, allowing the display of test suite output at runtime. The iOS test runner script can be used by any Python project, not just the CPython test suite. (cherry picked from commit 2041a95)
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Xcode 16 deprecated the
xcresultooltool we were using to gather test results after an iOS test run.This tool was less than ideal anyway, as it didn't provide a way to see test results as the test suite was running. As a result, we had intermittent CI test failures that manifested as "test suite didn't finish", with no runtime debugging possible.
This PR adds a new configuration item (
config->use_system_logger) for Apple platforms, providing the option to redirect stdout and stderr to the system log. This mirrors how Android operates - the implementation is strongly influenced by the Android implementation, but is just different enough that refactoring into a common base class is more trouble than it's worth IMHO.This PR also adds a new test runner for iOS projects. This test runner uses the iOS testbed as a template, installing the compiled framework into copy generated from the template; and then building and running the test project in parallel with a log streamer that captures the system log from the iOS simulator as it runs. This allows us to observe test output as the test suite runs.
The test runner also includes options to allows the installation of app code. This means the testbed project can be used to test arbitrary Python code, in addition to the core CPython test suite.
Although this feature is primarily useful for iOS apps, the same code can be used for macOS apps - something that is useful when embedding Python in to a GUI app (where stdout/stderr isn't visible).
This PR resolves both #126925 and #126821; Resolving #126821 was a pre-requisite for fixing #126925 (and is the first commit in this PR), but by itself, there's very little opportunity to evaluate that it's working. You need an updated test runner to be able to observe that stdout/err redirection is working.
Fixes #126925
Fixes #126821
📚 Documentation preview 📚: https://cpython-previews--127592.org.readthedocs.build/