722 lines
29 KiB
Python
722 lines
29 KiB
Python
# Verify that gdb can pretty-print the various PyObject* types
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#
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# The code for testing gdb was adapted from similar work in Unladen Swallow's
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# Lib/test/test_jit_gdb.py
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import os
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import re
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import subprocess
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import sys
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import unittest
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import sysconfig
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from test.test_support import run_unittest, findfile
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try:
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gdb_version, _ = subprocess.Popen(["gdb", "--version"],
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stdout=subprocess.PIPE).communicate()
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except OSError:
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# This is what "no gdb" looks like. There may, however, be other
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# errors that manifest this way too.
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raise unittest.SkipTest("Couldn't find gdb on the path")
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gdb_version_number = re.search(r"^GNU gdb [^\d]*(\d+)\.", gdb_version)
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if int(gdb_version_number.group(1)) < 7:
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raise unittest.SkipTest("gdb versions before 7.0 didn't support python embedding"
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" Saw:\n" + gdb_version)
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# Verify that "gdb" was built with the embedded python support enabled:
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cmd = "--eval-command=python import sys; print sys.version_info"
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p = subprocess.Popen(["gdb", "--batch", cmd],
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stdout=subprocess.PIPE)
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gdbpy_version, _ = p.communicate()
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if gdbpy_version == '':
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raise unittest.SkipTest("gdb not built with embedded python support")
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def python_is_optimized():
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cflags = sysconfig.get_config_vars()['PY_CFLAGS']
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final_opt = ""
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for opt in cflags.split():
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if opt.startswith('-O'):
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final_opt = opt
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return (final_opt and final_opt != '-O0')
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def gdb_has_frame_select():
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# Does this build of gdb have gdb.Frame.select ?
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cmd = "--eval-command=python print(dir(gdb.Frame))"
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p = subprocess.Popen(["gdb", "--batch", cmd],
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stdout=subprocess.PIPE)
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stdout, _ = p.communicate()
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m = re.match(r'.*\[(.*)\].*', stdout)
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if not m:
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raise unittest.SkipTest("Unable to parse output from gdb.Frame.select test")
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gdb_frame_dir = m.group(1).split(', ')
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return "'select'" in gdb_frame_dir
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HAS_PYUP_PYDOWN = gdb_has_frame_select()
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class DebuggerTests(unittest.TestCase):
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"""Test that the debugger can debug Python."""
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def run_gdb(self, *args):
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"""Runs gdb with the command line given by *args.
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Returns its stdout, stderr
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"""
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out, err = subprocess.Popen(
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args, stdout=subprocess.PIPE, stderr=subprocess.PIPE,
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).communicate()
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return out, err
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def get_stack_trace(self, source=None, script=None,
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breakpoint='PyObject_Print',
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cmds_after_breakpoint=None,
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import_site=False):
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'''
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Run 'python -c SOURCE' under gdb with a breakpoint.
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Support injecting commands after the breakpoint is reached
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Returns the stdout from gdb
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cmds_after_breakpoint: if provided, a list of strings: gdb commands
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'''
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# We use "set breakpoint pending yes" to avoid blocking with a:
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# Function "foo" not defined.
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# Make breakpoint pending on future shared library load? (y or [n])
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# error, which typically happens python is dynamically linked (the
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# breakpoints of interest are to be found in the shared library)
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# When this happens, we still get:
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# Function "PyObject_Print" not defined.
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# emitted to stderr each time, alas.
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# Initially I had "--eval-command=continue" here, but removed it to
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# avoid repeated print breakpoints when traversing hierarchical data
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# structures
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# Generate a list of commands in gdb's language:
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commands = ['set breakpoint pending yes',
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'break %s' % breakpoint,
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'run']
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if cmds_after_breakpoint:
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commands += cmds_after_breakpoint
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else:
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commands += ['backtrace']
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# print commands
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# Use "commands" to generate the arguments with which to invoke "gdb":
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args = ["gdb", "--batch"]
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args += ['--eval-command=%s' % cmd for cmd in commands]
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args += ["--args",
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sys.executable]
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if not import_site:
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# -S suppresses the default 'import site'
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args += ["-S"]
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if source:
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args += ["-c", source]
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elif script:
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args += [script]
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# print args
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# print ' '.join(args)
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# Use "args" to invoke gdb, capturing stdout, stderr:
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out, err = self.run_gdb(*args)
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# Ignore some noise on stderr due to the pending breakpoint:
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err = err.replace('Function "%s" not defined.\n' % breakpoint, '')
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# Ignore some other noise on stderr (http://bugs.python.org/issue8600)
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err = err.replace("warning: Unable to find libthread_db matching"
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" inferior's thread library, thread debugging will"
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" not be available.\n",
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'')
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err = err.replace("warning: Cannot initialize thread debugging"
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" library: Debugger service failed\n",
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'')
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# Ensure no unexpected error messages:
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self.assertEqual(err, '')
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return out
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def get_gdb_repr(self, source,
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cmds_after_breakpoint=None,
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import_site=False):
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# Given an input python source representation of data,
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# run "python -c'print DATA'" under gdb with a breakpoint on
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# PyObject_Print and scrape out gdb's representation of the "op"
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# parameter, and verify that the gdb displays the same string
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#
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# For a nested structure, the first time we hit the breakpoint will
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# give us the top-level structure
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gdb_output = self.get_stack_trace(source, breakpoint='PyObject_Print',
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cmds_after_breakpoint=cmds_after_breakpoint,
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import_site=import_site)
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# gdb can insert additional '\n' and space characters in various places
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# in its output, depending on the width of the terminal it's connected
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# to (using its "wrap_here" function)
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m = re.match('.*#0\s+PyObject_Print\s+\(\s*op\=\s*(.*?),\s+fp=.*\).*',
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gdb_output, re.DOTALL)
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if not m:
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self.fail('Unexpected gdb output: %r\n%s' % (gdb_output, gdb_output))
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return m.group(1), gdb_output
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def assertEndsWith(self, actual, exp_end):
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'''Ensure that the given "actual" string ends with "exp_end"'''
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self.assertTrue(actual.endswith(exp_end),
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msg='%r did not end with %r' % (actual, exp_end))
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def assertMultilineMatches(self, actual, pattern):
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m = re.match(pattern, actual, re.DOTALL)
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self.assertTrue(m, msg='%r did not match %r' % (actual, pattern))
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def get_sample_script(self):
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return findfile('gdb_sample.py')
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class PrettyPrintTests(DebuggerTests):
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def test_getting_backtrace(self):
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gdb_output = self.get_stack_trace('print 42')
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self.assertTrue('PyObject_Print' in gdb_output)
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def assertGdbRepr(self, val, cmds_after_breakpoint=None):
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# Ensure that gdb's rendering of the value in a debugged process
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# matches repr(value) in this process:
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gdb_repr, gdb_output = self.get_gdb_repr('print ' + repr(val),
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cmds_after_breakpoint)
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self.assertEqual(gdb_repr, repr(val), gdb_output)
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def test_int(self):
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'Verify the pretty-printing of various "int" values'
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self.assertGdbRepr(42)
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self.assertGdbRepr(0)
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self.assertGdbRepr(-7)
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self.assertGdbRepr(sys.maxint)
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self.assertGdbRepr(-sys.maxint)
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def test_long(self):
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'Verify the pretty-printing of various "long" values'
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self.assertGdbRepr(0L)
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self.assertGdbRepr(1000000000000L)
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self.assertGdbRepr(-1L)
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self.assertGdbRepr(-1000000000000000L)
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def test_singletons(self):
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'Verify the pretty-printing of True, False and None'
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self.assertGdbRepr(True)
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self.assertGdbRepr(False)
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self.assertGdbRepr(None)
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def test_dicts(self):
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'Verify the pretty-printing of dictionaries'
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self.assertGdbRepr({})
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self.assertGdbRepr({'foo': 'bar'})
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self.assertGdbRepr({'foo': 'bar', 'douglas':42})
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def test_lists(self):
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'Verify the pretty-printing of lists'
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self.assertGdbRepr([])
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self.assertGdbRepr(range(5))
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def test_strings(self):
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'Verify the pretty-printing of strings'
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self.assertGdbRepr('')
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self.assertGdbRepr('And now for something hopefully the same')
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self.assertGdbRepr('string with embedded NUL here \0 and then some more text')
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self.assertGdbRepr('this is byte 255:\xff and byte 128:\x80')
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def test_tuples(self):
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'Verify the pretty-printing of tuples'
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self.assertGdbRepr(tuple())
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self.assertGdbRepr((1,))
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self.assertGdbRepr(('foo', 'bar', 'baz'))
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def test_unicode(self):
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'Verify the pretty-printing of unicode values'
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# Test the empty unicode string:
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self.assertGdbRepr(u'')
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self.assertGdbRepr(u'hello world')
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# Test printing a single character:
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# U+2620 SKULL AND CROSSBONES
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self.assertGdbRepr(u'\u2620')
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# Test printing a Japanese unicode string
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# (I believe this reads "mojibake", using 3 characters from the CJK
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# Unified Ideographs area, followed by U+3051 HIRAGANA LETTER KE)
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self.assertGdbRepr(u'\u6587\u5b57\u5316\u3051')
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# Test a character outside the BMP:
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# U+1D121 MUSICAL SYMBOL C CLEF
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# This is:
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# UTF-8: 0xF0 0x9D 0x84 0xA1
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# UTF-16: 0xD834 0xDD21
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# This will only work on wide-unicode builds:
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self.assertGdbRepr(u"\U0001D121")
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def test_sets(self):
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'Verify the pretty-printing of sets'
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self.assertGdbRepr(set())
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self.assertGdbRepr(set(['a', 'b']))
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self.assertGdbRepr(set([4, 5, 6]))
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# Ensure that we handled sets containing the "dummy" key value,
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# which happens on deletion:
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gdb_repr, gdb_output = self.get_gdb_repr('''s = set(['a','b'])
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s.pop()
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print s''')
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self.assertEqual(gdb_repr, "set(['b'])")
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def test_frozensets(self):
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'Verify the pretty-printing of frozensets'
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self.assertGdbRepr(frozenset())
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self.assertGdbRepr(frozenset(['a', 'b']))
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self.assertGdbRepr(frozenset([4, 5, 6]))
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def test_exceptions(self):
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# Test a RuntimeError
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gdb_repr, gdb_output = self.get_gdb_repr('''
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try:
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raise RuntimeError("I am an error")
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except RuntimeError, e:
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print e
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''')
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self.assertEqual(gdb_repr,
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"exceptions.RuntimeError('I am an error',)")
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# Test division by zero:
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gdb_repr, gdb_output = self.get_gdb_repr('''
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try:
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a = 1 / 0
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except ZeroDivisionError, e:
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print e
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''')
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self.assertEqual(gdb_repr,
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"exceptions.ZeroDivisionError('integer division or modulo by zero',)")
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def test_classic_class(self):
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'Verify the pretty-printing of classic class instances'
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gdb_repr, gdb_output = self.get_gdb_repr('''
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class Foo:
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pass
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foo = Foo()
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foo.an_int = 42
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print foo''')
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m = re.match(r'<Foo\(an_int=42\) at remote 0x[0-9a-f]+>', gdb_repr)
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self.assertTrue(m,
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msg='Unexpected classic-class rendering %r' % gdb_repr)
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def test_modern_class(self):
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'Verify the pretty-printing of new-style class instances'
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gdb_repr, gdb_output = self.get_gdb_repr('''
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class Foo(object):
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pass
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foo = Foo()
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foo.an_int = 42
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print foo''')
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m = re.match(r'<Foo\(an_int=42\) at remote 0x[0-9a-f]+>', gdb_repr)
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self.assertTrue(m,
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msg='Unexpected new-style class rendering %r' % gdb_repr)
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def test_subclassing_list(self):
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'Verify the pretty-printing of an instance of a list subclass'
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gdb_repr, gdb_output = self.get_gdb_repr('''
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class Foo(list):
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pass
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foo = Foo()
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foo += [1, 2, 3]
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foo.an_int = 42
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print foo''')
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m = re.match(r'<Foo\(an_int=42\) at remote 0x[0-9a-f]+>', gdb_repr)
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self.assertTrue(m,
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msg='Unexpected new-style class rendering %r' % gdb_repr)
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def test_subclassing_tuple(self):
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'Verify the pretty-printing of an instance of a tuple subclass'
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# This should exercise the negative tp_dictoffset code in the
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# new-style class support
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gdb_repr, gdb_output = self.get_gdb_repr('''
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class Foo(tuple):
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pass
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foo = Foo((1, 2, 3))
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foo.an_int = 42
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print foo''')
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m = re.match(r'<Foo\(an_int=42\) at remote 0x[0-9a-f]+>', gdb_repr)
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self.assertTrue(m,
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msg='Unexpected new-style class rendering %r' % gdb_repr)
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def assertSane(self, source, corruption, expvalue=None, exptype=None):
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'''Run Python under gdb, corrupting variables in the inferior process
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immediately before taking a backtrace.
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Verify that the variable's representation is the expected failsafe
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representation'''
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if corruption:
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cmds_after_breakpoint=[corruption, 'backtrace']
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else:
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cmds_after_breakpoint=['backtrace']
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gdb_repr, gdb_output = \
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self.get_gdb_repr(source,
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cmds_after_breakpoint=cmds_after_breakpoint)
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if expvalue:
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if gdb_repr == repr(expvalue):
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# gdb managed to print the value in spite of the corruption;
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# this is good (see http://bugs.python.org/issue8330)
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return
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if exptype:
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pattern = '<' + exptype + ' at remote 0x[0-9a-f]+>'
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else:
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# Match anything for the type name; 0xDEADBEEF could point to
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# something arbitrary (see http://bugs.python.org/issue8330)
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pattern = '<.* at remote 0x[0-9a-f]+>'
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m = re.match(pattern, gdb_repr)
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if not m:
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self.fail('Unexpected gdb representation: %r\n%s' % \
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(gdb_repr, gdb_output))
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def test_NULL_ptr(self):
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'Ensure that a NULL PyObject* is handled gracefully'
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gdb_repr, gdb_output = (
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self.get_gdb_repr('print 42',
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cmds_after_breakpoint=['set variable op=0',
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'backtrace'])
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)
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self.assertEqual(gdb_repr, '0x0')
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def test_NULL_ob_type(self):
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'Ensure that a PyObject* with NULL ob_type is handled gracefully'
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self.assertSane('print 42',
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'set op->ob_type=0')
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def test_corrupt_ob_type(self):
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'Ensure that a PyObject* with a corrupt ob_type is handled gracefully'
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self.assertSane('print 42',
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'set op->ob_type=0xDEADBEEF',
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expvalue=42)
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def test_corrupt_tp_flags(self):
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'Ensure that a PyObject* with a type with corrupt tp_flags is handled'
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self.assertSane('print 42',
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'set op->ob_type->tp_flags=0x0',
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expvalue=42)
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def test_corrupt_tp_name(self):
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'Ensure that a PyObject* with a type with corrupt tp_name is handled'
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self.assertSane('print 42',
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'set op->ob_type->tp_name=0xDEADBEEF',
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expvalue=42)
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def test_NULL_instance_dict(self):
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'Ensure that a PyInstanceObject with with a NULL in_dict is handled'
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self.assertSane('''
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class Foo:
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pass
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foo = Foo()
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foo.an_int = 42
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print foo''',
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'set ((PyInstanceObject*)op)->in_dict = 0',
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exptype='Foo')
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def test_builtins_help(self):
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'Ensure that the new-style class _Helper in site.py can be handled'
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# (this was the issue causing tracebacks in
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# http://bugs.python.org/issue8032#msg100537 )
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gdb_repr, gdb_output = self.get_gdb_repr('print __builtins__.help', import_site=True)
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m = re.match(r'<_Helper at remote 0x[0-9a-f]+>', gdb_repr)
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self.assertTrue(m,
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msg='Unexpected rendering %r' % gdb_repr)
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def test_selfreferential_list(self):
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'''Ensure that a reference loop involving a list doesn't lead proxyval
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into an infinite loop:'''
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gdb_repr, gdb_output = \
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self.get_gdb_repr("a = [3, 4, 5] ; a.append(a) ; print a")
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self.assertEqual(gdb_repr, '[3, 4, 5, [...]]')
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gdb_repr, gdb_output = \
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self.get_gdb_repr("a = [3, 4, 5] ; b = [a] ; a.append(b) ; print a")
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self.assertEqual(gdb_repr, '[3, 4, 5, [[...]]]')
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def test_selfreferential_dict(self):
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'''Ensure that a reference loop involving a dict doesn't lead proxyval
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into an infinite loop:'''
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gdb_repr, gdb_output = \
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self.get_gdb_repr("a = {} ; b = {'bar':a} ; a['foo'] = b ; print a")
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self.assertEqual(gdb_repr, "{'foo': {'bar': {...}}}")
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def test_selfreferential_old_style_instance(self):
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gdb_repr, gdb_output = \
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self.get_gdb_repr('''
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class Foo:
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pass
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foo = Foo()
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foo.an_attr = foo
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print foo''')
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self.assertTrue(re.match('<Foo\(an_attr=<\.\.\.>\) at remote 0x[0-9a-f]+>',
|
|
gdb_repr),
|
|
'Unexpected gdb representation: %r\n%s' % \
|
|
(gdb_repr, gdb_output))
|
|
|
|
def test_selfreferential_new_style_instance(self):
|
|
gdb_repr, gdb_output = \
|
|
self.get_gdb_repr('''
|
|
class Foo(object):
|
|
pass
|
|
foo = Foo()
|
|
foo.an_attr = foo
|
|
print foo''')
|
|
self.assertTrue(re.match('<Foo\(an_attr=<\.\.\.>\) at remote 0x[0-9a-f]+>',
|
|
gdb_repr),
|
|
'Unexpected gdb representation: %r\n%s' % \
|
|
(gdb_repr, gdb_output))
|
|
|
|
gdb_repr, gdb_output = \
|
|
self.get_gdb_repr('''
|
|
class Foo(object):
|
|
pass
|
|
a = Foo()
|
|
b = Foo()
|
|
a.an_attr = b
|
|
b.an_attr = a
|
|
print a''')
|
|
self.assertTrue(re.match('<Foo\(an_attr=<Foo\(an_attr=<\.\.\.>\) at remote 0x[0-9a-f]+>\) at remote 0x[0-9a-f]+>',
|
|
gdb_repr),
|
|
'Unexpected gdb representation: %r\n%s' % \
|
|
(gdb_repr, gdb_output))
|
|
|
|
def test_truncation(self):
|
|
'Verify that very long output is truncated'
|
|
gdb_repr, gdb_output = self.get_gdb_repr('print range(1000)')
|
|
self.assertEqual(gdb_repr,
|
|
"[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, "
|
|
"14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, "
|
|
"27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, "
|
|
"40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, "
|
|
"53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, "
|
|
"66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, "
|
|
"79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, "
|
|
"92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, "
|
|
"104, 105, 106, 107, 108, 109, 110, 111, 112, 113, "
|
|
"114, 115, 116, 117, 118, 119, 120, 121, 122, 123, "
|
|
"124, 125, 126, 127, 128, 129, 130, 131, 132, 133, "
|
|
"134, 135, 136, 137, 138, 139, 140, 141, 142, 143, "
|
|
"144, 145, 146, 147, 148, 149, 150, 151, 152, 153, "
|
|
"154, 155, 156, 157, 158, 159, 160, 161, 162, 163, "
|
|
"164, 165, 166, 167, 168, 169, 170, 171, 172, 173, "
|
|
"174, 175, 176, 177, 178, 179, 180, 181, 182, 183, "
|
|
"184, 185, 186, 187, 188, 189, 190, 191, 192, 193, "
|
|
"194, 195, 196, 197, 198, 199, 200, 201, 202, 203, "
|
|
"204, 205, 206, 207, 208, 209, 210, 211, 212, 213, "
|
|
"214, 215, 216, 217, 218, 219, 220, 221, 222, 223, "
|
|
"224, 225, 226...(truncated)")
|
|
self.assertEqual(len(gdb_repr),
|
|
1024 + len('...(truncated)'))
|
|
|
|
def test_builtin_function(self):
|
|
gdb_repr, gdb_output = self.get_gdb_repr('print len')
|
|
self.assertEqual(gdb_repr, '<built-in function len>')
|
|
|
|
def test_builtin_method(self):
|
|
gdb_repr, gdb_output = self.get_gdb_repr('import sys; print sys.stdout.readlines')
|
|
self.assertTrue(re.match('<built-in method readlines of file object at remote 0x[0-9a-f]+>',
|
|
gdb_repr),
|
|
'Unexpected gdb representation: %r\n%s' % \
|
|
(gdb_repr, gdb_output))
|
|
|
|
def test_frames(self):
|
|
gdb_output = self.get_stack_trace('''
|
|
def foo(a, b, c):
|
|
pass
|
|
|
|
foo(3, 4, 5)
|
|
print foo.__code__''',
|
|
breakpoint='PyObject_Print',
|
|
cmds_after_breakpoint=['print (PyFrameObject*)(((PyCodeObject*)op)->co_zombieframe)']
|
|
)
|
|
self.assertTrue(re.match(r'.*\s+\$1 =\s+Frame 0x[0-9a-f]+, for file <string>, line 3, in foo \(\)\s+.*',
|
|
gdb_output,
|
|
re.DOTALL),
|
|
'Unexpected gdb representation: %r\n%s' % (gdb_output, gdb_output))
|
|
|
|
@unittest.skipIf(python_is_optimized(),
|
|
"Python was compiled with optimizations")
|
|
class PyListTests(DebuggerTests):
|
|
def assertListing(self, expected, actual):
|
|
self.assertEndsWith(actual, expected)
|
|
|
|
def test_basic_command(self):
|
|
'Verify that the "py-list" command works'
|
|
bt = self.get_stack_trace(script=self.get_sample_script(),
|
|
cmds_after_breakpoint=['py-list'])
|
|
|
|
self.assertListing(' 5 \n'
|
|
' 6 def bar(a, b, c):\n'
|
|
' 7 baz(a, b, c)\n'
|
|
' 8 \n'
|
|
' 9 def baz(*args):\n'
|
|
' >10 print(42)\n'
|
|
' 11 \n'
|
|
' 12 foo(1, 2, 3)\n',
|
|
bt)
|
|
|
|
def test_one_abs_arg(self):
|
|
'Verify the "py-list" command with one absolute argument'
|
|
bt = self.get_stack_trace(script=self.get_sample_script(),
|
|
cmds_after_breakpoint=['py-list 9'])
|
|
|
|
self.assertListing(' 9 def baz(*args):\n'
|
|
' >10 print(42)\n'
|
|
' 11 \n'
|
|
' 12 foo(1, 2, 3)\n',
|
|
bt)
|
|
|
|
def test_two_abs_args(self):
|
|
'Verify the "py-list" command with two absolute arguments'
|
|
bt = self.get_stack_trace(script=self.get_sample_script(),
|
|
cmds_after_breakpoint=['py-list 1,3'])
|
|
|
|
self.assertListing(' 1 # Sample script for use by test_gdb.py\n'
|
|
' 2 \n'
|
|
' 3 def foo(a, b, c):\n',
|
|
bt)
|
|
|
|
class StackNavigationTests(DebuggerTests):
|
|
@unittest.skipUnless(HAS_PYUP_PYDOWN, "test requires py-up/py-down commands")
|
|
@unittest.skipIf(python_is_optimized(),
|
|
"Python was compiled with optimizations")
|
|
def test_pyup_command(self):
|
|
'Verify that the "py-up" command works'
|
|
bt = self.get_stack_trace(script=self.get_sample_script(),
|
|
cmds_after_breakpoint=['py-up'])
|
|
self.assertMultilineMatches(bt,
|
|
r'''^.*
|
|
#[0-9]+ Frame 0x[0-9a-f]+, for file .*gdb_sample.py, line 7, in bar \(a=1, b=2, c=3\)
|
|
baz\(a, b, c\)
|
|
$''')
|
|
|
|
@unittest.skipUnless(HAS_PYUP_PYDOWN, "test requires py-up/py-down commands")
|
|
def test_down_at_bottom(self):
|
|
'Verify handling of "py-down" at the bottom of the stack'
|
|
bt = self.get_stack_trace(script=self.get_sample_script(),
|
|
cmds_after_breakpoint=['py-down'])
|
|
self.assertEndsWith(bt,
|
|
'Unable to find a newer python frame\n')
|
|
|
|
@unittest.skipUnless(HAS_PYUP_PYDOWN, "test requires py-up/py-down commands")
|
|
def test_up_at_top(self):
|
|
'Verify handling of "py-up" at the top of the stack'
|
|
bt = self.get_stack_trace(script=self.get_sample_script(),
|
|
cmds_after_breakpoint=['py-up'] * 4)
|
|
self.assertEndsWith(bt,
|
|
'Unable to find an older python frame\n')
|
|
|
|
@unittest.skipUnless(HAS_PYUP_PYDOWN, "test requires py-up/py-down commands")
|
|
@unittest.skipIf(python_is_optimized(),
|
|
"Python was compiled with optimizations")
|
|
def test_up_then_down(self):
|
|
'Verify "py-up" followed by "py-down"'
|
|
bt = self.get_stack_trace(script=self.get_sample_script(),
|
|
cmds_after_breakpoint=['py-up', 'py-down'])
|
|
self.assertMultilineMatches(bt,
|
|
r'''^.*
|
|
#[0-9]+ Frame 0x[0-9a-f]+, for file .*gdb_sample.py, line 7, in bar \(a=1, b=2, c=3\)
|
|
baz\(a, b, c\)
|
|
#[0-9]+ Frame 0x[0-9a-f]+, for file .*gdb_sample.py, line 10, in baz \(args=\(1, 2, 3\)\)
|
|
print\(42\)
|
|
$''')
|
|
|
|
class PyBtTests(DebuggerTests):
|
|
@unittest.skipIf(python_is_optimized(),
|
|
"Python was compiled with optimizations")
|
|
def test_basic_command(self):
|
|
'Verify that the "py-bt" command works'
|
|
bt = self.get_stack_trace(script=self.get_sample_script(),
|
|
cmds_after_breakpoint=['py-bt'])
|
|
self.assertMultilineMatches(bt,
|
|
r'''^.*
|
|
#[0-9]+ Frame 0x[0-9a-f]+, for file .*gdb_sample.py, line 7, in bar \(a=1, b=2, c=3\)
|
|
baz\(a, b, c\)
|
|
#[0-9]+ Frame 0x[0-9a-f]+, for file .*gdb_sample.py, line 4, in foo \(a=1, b=2, c=3\)
|
|
bar\(a, b, c\)
|
|
#[0-9]+ Frame 0x[0-9a-f]+, for file .*gdb_sample.py, line 12, in <module> \(\)
|
|
foo\(1, 2, 3\)
|
|
''')
|
|
|
|
class PyPrintTests(DebuggerTests):
|
|
@unittest.skipIf(python_is_optimized(),
|
|
"Python was compiled with optimizations")
|
|
def test_basic_command(self):
|
|
'Verify that the "py-print" command works'
|
|
bt = self.get_stack_trace(script=self.get_sample_script(),
|
|
cmds_after_breakpoint=['py-print args'])
|
|
self.assertMultilineMatches(bt,
|
|
r".*\nlocal 'args' = \(1, 2, 3\)\n.*")
|
|
|
|
@unittest.skipUnless(HAS_PYUP_PYDOWN, "test requires py-up/py-down commands")
|
|
@unittest.skipIf(python_is_optimized(),
|
|
"Python was compiled with optimizations")
|
|
def test_print_after_up(self):
|
|
bt = self.get_stack_trace(script=self.get_sample_script(),
|
|
cmds_after_breakpoint=['py-up', 'py-print c', 'py-print b', 'py-print a'])
|
|
self.assertMultilineMatches(bt,
|
|
r".*\nlocal 'c' = 3\nlocal 'b' = 2\nlocal 'a' = 1\n.*")
|
|
|
|
@unittest.skipIf(python_is_optimized(),
|
|
"Python was compiled with optimizations")
|
|
def test_printing_global(self):
|
|
bt = self.get_stack_trace(script=self.get_sample_script(),
|
|
cmds_after_breakpoint=['py-print __name__'])
|
|
self.assertMultilineMatches(bt,
|
|
r".*\nglobal '__name__' = '__main__'\n.*")
|
|
|
|
@unittest.skipIf(python_is_optimized(),
|
|
"Python was compiled with optimizations")
|
|
def test_printing_builtin(self):
|
|
bt = self.get_stack_trace(script=self.get_sample_script(),
|
|
cmds_after_breakpoint=['py-print len'])
|
|
self.assertMultilineMatches(bt,
|
|
r".*\nbuiltin 'len' = <built-in function len>\n.*")
|
|
|
|
class PyLocalsTests(DebuggerTests):
|
|
@unittest.skipIf(python_is_optimized(),
|
|
"Python was compiled with optimizations")
|
|
def test_basic_command(self):
|
|
bt = self.get_stack_trace(script=self.get_sample_script(),
|
|
cmds_after_breakpoint=['py-locals'])
|
|
self.assertMultilineMatches(bt,
|
|
r".*\nargs = \(1, 2, 3\)\n.*")
|
|
|
|
@unittest.skipUnless(HAS_PYUP_PYDOWN, "test requires py-up/py-down commands")
|
|
@unittest.skipIf(python_is_optimized(),
|
|
"Python was compiled with optimizations")
|
|
def test_locals_after_up(self):
|
|
bt = self.get_stack_trace(script=self.get_sample_script(),
|
|
cmds_after_breakpoint=['py-up', 'py-locals'])
|
|
self.assertMultilineMatches(bt,
|
|
r".*\na = 1\nb = 2\nc = 3\n.*")
|
|
|
|
def test_main():
|
|
run_unittest(PrettyPrintTests,
|
|
PyListTests,
|
|
StackNavigationTests,
|
|
PyBtTests,
|
|
PyPrintTests,
|
|
PyLocalsTests
|
|
)
|
|
|
|
if __name__ == "__main__":
|
|
test_main()
|