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[3.12] gh-102541: Add test case for help() for non_existent_module (GH-106340) #106639

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Merged
merged 1 commit into from
Jul 11, 2023
Merged

[3.12] gh-102541: Add test case for help() for non_existent_module (GH-106340) #106639

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11 changes: 10 additions & 1 deletion Lib/test/test_pydoc.py
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Original file line number Diff line number Diff line change
Expand Up @@ -24,7 +24,8 @@
from urllib.request import urlopen, urlcleanup
from test.support import import_helper
from test.support import os_helper
from test.support.script_helper import assert_python_ok, assert_python_failure
from test.support.script_helper import (assert_python_ok,
assert_python_failure, spawn_python)
from test.support import threading_helper
from test.support import (reap_children, captured_output, captured_stdout,
captured_stderr, is_emscripten, is_wasi,
Expand Down Expand Up @@ -631,6 +632,14 @@ def test_builtin_on_metaclasses(self):
# Testing that the subclasses section does not appear
self.assertNotIn('Built-in subclasses', text)

def test_fail_help_cli(self):
elines = (missing_pattern % 'abd').splitlines()
with spawn_python("-c" "help()") as proc:
out, _ = proc.communicate(b"abd")
olines = out.decode().splitlines()[-9:-6]
olines[0] = olines[0].removeprefix('help> ')
self.assertEqual(elines, olines)

def test_fail_help_output_redirect(self):
with StringIO() as buf:
helper = pydoc.Helper(output=buf)
Expand Down