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Diffstat (limited to 'lib/python2.7/test/test_gdb.py')
| -rw-r--r-- | lib/python2.7/test/test_gdb.py | 761 |
1 files changed, 0 insertions, 761 deletions
diff --git a/lib/python2.7/test/test_gdb.py b/lib/python2.7/test/test_gdb.py deleted file mode 100644 index 5302b5a..0000000 --- a/lib/python2.7/test/test_gdb.py +++ /dev/null @@ -1,761 +0,0 @@ -# Verify that gdb can pretty-print the various PyObject* types -# -# The code for testing gdb was adapted from similar work in Unladen Swallow's -# Lib/test/test_jit_gdb.py - -import os -import re -import subprocess -import sys -import unittest -import sysconfig - -from test.test_support import run_unittest, findfile - -try: - gdb_version, _ = subprocess.Popen(["gdb", "--version"], - stdout=subprocess.PIPE).communicate() -except OSError: - # This is what "no gdb" looks like. There may, however, be other - # errors that manifest this way too. - raise unittest.SkipTest("Couldn't find gdb on the path") -gdb_version_number = re.search("^GNU gdb [^\d]*(\d+)\.(\d)", gdb_version) -gdb_major_version = int(gdb_version_number.group(1)) -gdb_minor_version = int(gdb_version_number.group(2)) -if gdb_major_version < 7: - raise unittest.SkipTest("gdb versions before 7.0 didn't support python embedding" - " Saw:\n" + gdb_version) - -# Location of custom hooks file in a repository checkout. -checkout_hook_path = os.path.join(os.path.dirname(sys.executable), - 'python-gdb.py') - -def run_gdb(*args, **env_vars): - """Runs gdb in --batch mode with the additional arguments given by *args. - - Returns its (stdout, stderr) - """ - if env_vars: - env = os.environ.copy() - env.update(env_vars) - else: - env = None - base_cmd = ('gdb', '--batch') - if (gdb_major_version, gdb_minor_version) >= (7, 4): - base_cmd += ('-iex', 'add-auto-load-safe-path ' + checkout_hook_path) - out, err = subprocess.Popen(base_cmd + args, - stdout=subprocess.PIPE, stderr=subprocess.PIPE, env=env, - ).communicate() - return out, err - -# Verify that "gdb" was built with the embedded python support enabled: -gdbpy_version, _ = run_gdb("--eval-command=python import sys; print sys.version_info") -if not gdbpy_version: - raise unittest.SkipTest("gdb not built with embedded python support") - -# Verify that "gdb" can load our custom hooks. In theory this should never -# fail, but we don't handle the case of the hooks file not existing if the -# tests are run from an installed Python (we'll produce failures in that case). -cmd = ['--args', sys.executable] -_, gdbpy_errors = run_gdb('--args', sys.executable) -if "auto-loading has been declined" in gdbpy_errors: - msg = "gdb security settings prevent use of custom hooks: " - -def python_is_optimized(): - cflags = sysconfig.get_config_vars()['PY_CFLAGS'] - final_opt = "" - for opt in cflags.split(): - if opt.startswith('-O'): - final_opt = opt - return (final_opt and final_opt != '-O0') - -def gdb_has_frame_select(): - # Does this build of gdb have gdb.Frame.select ? - stdout, _ = run_gdb("--eval-command=python print(dir(gdb.Frame))") - m = re.match(r'.*\[(.*)\].*', stdout) - if not m: - raise unittest.SkipTest("Unable to parse output from gdb.Frame.select test") - gdb_frame_dir = m.group(1).split(', ') - return "'select'" in gdb_frame_dir - -HAS_PYUP_PYDOWN = gdb_has_frame_select() - -class DebuggerTests(unittest.TestCase): - - """Test that the debugger can debug Python.""" - - def get_stack_trace(self, source=None, script=None, - breakpoint='PyObject_Print', - cmds_after_breakpoint=None, - import_site=False): - ''' - Run 'python -c SOURCE' under gdb with a breakpoint. - - Support injecting commands after the breakpoint is reached - - Returns the stdout from gdb - - cmds_after_breakpoint: if provided, a list of strings: gdb commands - ''' - # We use "set breakpoint pending yes" to avoid blocking with a: - # Function "foo" not defined. - # Make breakpoint pending on future shared library load? (y or [n]) - # error, which typically happens python is dynamically linked (the - # breakpoints of interest are to be found in the shared library) - # When this happens, we still get: - # Function "PyObject_Print" not defined. - # emitted to stderr each time, alas. - - # Initially I had "--eval-command=continue" here, but removed it to - # avoid repeated print breakpoints when traversing hierarchical data - # structures - - # Generate a list of commands in gdb's language: - commands = ['set breakpoint pending yes', - 'break %s' % breakpoint, - 'run'] - if cmds_after_breakpoint: - commands += cmds_after_breakpoint - else: - commands += ['backtrace'] - - # print commands - - # Use "commands" to generate the arguments with which to invoke "gdb": - args = ["gdb", "--batch"] - args += ['--eval-command=%s' % cmd for cmd in commands] - args += ["--args", - sys.executable] - - if not import_site: - # -S suppresses the default 'import site' - args += ["-S"] - - if source: - args += ["-c", source] - elif script: - args += [script] - - # print args - # print ' '.join(args) - - # Use "args" to invoke gdb, capturing stdout, stderr: - out, err = run_gdb(*args, PYTHONHASHSEED='0') - - errlines = err.splitlines() - unexpected_errlines = [] - - # Ignore some benign messages on stderr. - ignore_patterns = ( - 'Function "%s" not defined.' % breakpoint, - "warning: no loadable sections found in added symbol-file" - " system-supplied DSO", - "warning: Unable to find libthread_db matching" - " inferior's thread library, thread debugging will" - " not be available.", - "warning: Cannot initialize thread debugging" - " library: Debugger service failed", - 'warning: Could not load shared library symbols for ' - 'linux-vdso.so', - 'warning: Could not load shared library symbols for ' - 'linux-gate.so', - 'Do you need "set solib-search-path" or ' - '"set sysroot"?', - ) - for line in errlines: - if not line.startswith(ignore_patterns): - unexpected_errlines.append(line) - - # Ensure no unexpected error messages: - self.assertEqual(unexpected_errlines, []) - return out - - def get_gdb_repr(self, source, - cmds_after_breakpoint=None, - import_site=False): - # Given an input python source representation of data, - # run "python -c'print DATA'" under gdb with a breakpoint on - # PyObject_Print and scrape out gdb's representation of the "op" - # parameter, and verify that the gdb displays the same string - # - # For a nested structure, the first time we hit the breakpoint will - # give us the top-level structure - gdb_output = self.get_stack_trace(source, breakpoint='PyObject_Print', - cmds_after_breakpoint=cmds_after_breakpoint, - import_site=import_site) - # gdb can insert additional '\n' and space characters in various places - # in its output, depending on the width of the terminal it's connected - # to (using its "wrap_here" function) - m = re.match('.*#0\s+PyObject_Print\s+\(\s*op\=\s*(.*?),\s+fp=.*\).*', - gdb_output, re.DOTALL) - if not m: - self.fail('Unexpected gdb output: %r\n%s' % (gdb_output, gdb_output)) - return m.group(1), gdb_output - - def assertEndsWith(self, actual, exp_end): - '''Ensure that the given "actual" string ends with "exp_end"''' - self.assertTrue(actual.endswith(exp_end), - msg='%r did not end with %r' % (actual, exp_end)) - - def assertMultilineMatches(self, actual, pattern): - m = re.match(pattern, actual, re.DOTALL) - self.assertTrue(m, msg='%r did not match %r' % (actual, pattern)) - - def get_sample_script(self): - return findfile('gdb_sample.py') - -class PrettyPrintTests(DebuggerTests): - def test_getting_backtrace(self): - gdb_output = self.get_stack_trace('print 42') - self.assertTrue('PyObject_Print' in gdb_output) - - def assertGdbRepr(self, val, cmds_after_breakpoint=None): - # Ensure that gdb's rendering of the value in a debugged process - # matches repr(value) in this process: - gdb_repr, gdb_output = self.get_gdb_repr('print ' + repr(val), - cmds_after_breakpoint) - self.assertEqual(gdb_repr, repr(val), gdb_output) - - def test_int(self): - 'Verify the pretty-printing of various "int" values' - self.assertGdbRepr(42) - self.assertGdbRepr(0) - self.assertGdbRepr(-7) - self.assertGdbRepr(sys.maxint) - self.assertGdbRepr(-sys.maxint) - - def test_long(self): - 'Verify the pretty-printing of various "long" values' - self.assertGdbRepr(0L) - self.assertGdbRepr(1000000000000L) - self.assertGdbRepr(-1L) - self.assertGdbRepr(-1000000000000000L) - - def test_singletons(self): - 'Verify the pretty-printing of True, False and None' - self.assertGdbRepr(True) - self.assertGdbRepr(False) - self.assertGdbRepr(None) - - def test_dicts(self): - 'Verify the pretty-printing of dictionaries' - self.assertGdbRepr({}) - self.assertGdbRepr({'foo': 'bar'}) - self.assertGdbRepr("{'foo': 'bar', 'douglas':42}") - - def test_lists(self): - 'Verify the pretty-printing of lists' - self.assertGdbRepr([]) - self.assertGdbRepr(range(5)) - - def test_strings(self): - 'Verify the pretty-printing of strings' - self.assertGdbRepr('') - self.assertGdbRepr('And now for something hopefully the same') - self.assertGdbRepr('string with embedded NUL here \0 and then some more text') - self.assertGdbRepr('this is byte 255:\xff and byte 128:\x80') - - def test_tuples(self): - 'Verify the pretty-printing of tuples' - self.assertGdbRepr(tuple()) - self.assertGdbRepr((1,)) - self.assertGdbRepr(('foo', 'bar', 'baz')) - - def test_unicode(self): - 'Verify the pretty-printing of unicode values' - # Test the empty unicode string: - self.assertGdbRepr(u'') - - self.assertGdbRepr(u'hello world') - - # Test printing a single character: - # U+2620 SKULL AND CROSSBONES - self.assertGdbRepr(u'\u2620') - - # Test printing a Japanese unicode string - # (I believe this reads "mojibake", using 3 characters from the CJK - # Unified Ideographs area, followed by U+3051 HIRAGANA LETTER KE) - self.assertGdbRepr(u'\u6587\u5b57\u5316\u3051') - - # Test a character outside the BMP: - # U+1D121 MUSICAL SYMBOL C CLEF - # This is: - # UTF-8: 0xF0 0x9D 0x84 0xA1 - # UTF-16: 0xD834 0xDD21 - # This will only work on wide-unicode builds: - self.assertGdbRepr(u"\U0001D121") - - def test_sets(self): - 'Verify the pretty-printing of sets' - self.assertGdbRepr(set()) - rep = self.get_gdb_repr("print set(['a', 'b'])")[0] - self.assertTrue(rep.startswith("set([")) - self.assertTrue(rep.endswith("])")) - self.assertEqual(eval(rep), {'a', 'b'}) - rep = self.get_gdb_repr("print set([4, 5])")[0] - self.assertTrue(rep.startswith("set([")) - self.assertTrue(rep.endswith("])")) - self.assertEqual(eval(rep), {4, 5}) - - # Ensure that we handled sets containing the "dummy" key value, - # which happens on deletion: - gdb_repr, gdb_output = self.get_gdb_repr('''s = set(['a','b']) -s.pop() -print s''') - self.assertEqual(gdb_repr, "set(['b'])") - - def test_frozensets(self): - 'Verify the pretty-printing of frozensets' - self.assertGdbRepr(frozenset()) - rep = self.get_gdb_repr("print frozenset(['a', 'b'])")[0] - self.assertTrue(rep.startswith("frozenset([")) - self.assertTrue(rep.endswith("])")) - self.assertEqual(eval(rep), {'a', 'b'}) - rep = self.get_gdb_repr("print frozenset([4, 5])")[0] - self.assertTrue(rep.startswith("frozenset([")) - self.assertTrue(rep.endswith("])")) - self.assertEqual(eval(rep), {4, 5}) - - def test_exceptions(self): - # Test a RuntimeError - gdb_repr, gdb_output = self.get_gdb_repr(''' -try: - raise RuntimeError("I am an error") -except RuntimeError, e: - print e -''') - self.assertEqual(gdb_repr, - "exceptions.RuntimeError('I am an error',)") - - - # Test division by zero: - gdb_repr, gdb_output = self.get_gdb_repr(''' -try: - a = 1 / 0 -except ZeroDivisionError, e: - print e -''') - self.assertEqual(gdb_repr, - "exceptions.ZeroDivisionError('integer division or modulo by zero',)") - - def test_classic_class(self): - 'Verify the pretty-printing of classic class instances' - gdb_repr, gdb_output = self.get_gdb_repr(''' -class Foo: - pass -foo = Foo() -foo.an_int = 42 -print foo''') - m = re.match(r'<Foo\(an_int=42\) at remote 0x[0-9a-f]+>', gdb_repr) - self.assertTrue(m, - msg='Unexpected classic-class rendering %r' % gdb_repr) - - def test_modern_class(self): - 'Verify the pretty-printing of new-style class instances' - gdb_repr, gdb_output = self.get_gdb_repr(''' -class Foo(object): - pass -foo = Foo() -foo.an_int = 42 -print foo''') - m = re.match(r'<Foo\(an_int=42\) at remote 0x[0-9a-f]+>', gdb_repr) - self.assertTrue(m, - msg='Unexpected new-style class rendering %r' % gdb_repr) - - def test_subclassing_list(self): - 'Verify the pretty-printing of an instance of a list subclass' - gdb_repr, gdb_output = self.get_gdb_repr(''' -class Foo(list): - pass -foo = Foo() -foo += [1, 2, 3] -foo.an_int = 42 -print foo''') - m = re.match(r'<Foo\(an_int=42\) at remote 0x[0-9a-f]+>', gdb_repr) - self.assertTrue(m, - msg='Unexpected new-style class rendering %r' % gdb_repr) - - def test_subclassing_tuple(self): - 'Verify the pretty-printing of an instance of a tuple subclass' - # This should exercise the negative tp_dictoffset code in the - # new-style class support - gdb_repr, gdb_output = self.get_gdb_repr(''' -class Foo(tuple): - pass -foo = Foo((1, 2, 3)) -foo.an_int = 42 -print foo''') - m = re.match(r'<Foo\(an_int=42\) at remote 0x[0-9a-f]+>', gdb_repr) - self.assertTrue(m, - msg='Unexpected new-style class rendering %r' % gdb_repr) - - def assertSane(self, source, corruption, expvalue=None, exptype=None): - '''Run Python under gdb, corrupting variables in the inferior process - immediately before taking a backtrace. - - Verify that the variable's representation is the expected failsafe - representation''' - if corruption: - cmds_after_breakpoint=[corruption, 'backtrace'] - else: - cmds_after_breakpoint=['backtrace'] - - gdb_repr, gdb_output = \ - self.get_gdb_repr(source, - cmds_after_breakpoint=cmds_after_breakpoint) - - if expvalue: - if gdb_repr == repr(expvalue): - # gdb managed to print the value in spite of the corruption; - # this is good (see http://bugs.python.org/issue8330) - return - - if exptype: - pattern = '<' + exptype + ' at remote 0x[0-9a-f]+>' - else: - # Match anything for the type name; 0xDEADBEEF could point to - # something arbitrary (see http://bugs.python.org/issue8330) - pattern = '<.* at remote 0x[0-9a-f]+>' - - m = re.match(pattern, gdb_repr) - if not m: - self.fail('Unexpected gdb representation: %r\n%s' % \ - (gdb_repr, gdb_output)) - - def test_NULL_ptr(self): - 'Ensure that a NULL PyObject* is handled gracefully' - gdb_repr, gdb_output = ( - self.get_gdb_repr('print 42', - cmds_after_breakpoint=['set variable op=0', - 'backtrace']) - ) - - self.assertEqual(gdb_repr, '0x0') - - def test_NULL_ob_type(self): - 'Ensure that a PyObject* with NULL ob_type is handled gracefully' - self.assertSane('print 42', - 'set op->ob_type=0') - - def test_corrupt_ob_type(self): - 'Ensure that a PyObject* with a corrupt ob_type is handled gracefully' - self.assertSane('print 42', - 'set op->ob_type=0xDEADBEEF', - expvalue=42) - - def test_corrupt_tp_flags(self): - 'Ensure that a PyObject* with a type with corrupt tp_flags is handled' - self.assertSane('print 42', - 'set op->ob_type->tp_flags=0x0', - expvalue=42) - - def test_corrupt_tp_name(self): - 'Ensure that a PyObject* with a type with corrupt tp_name is handled' - self.assertSane('print 42', - 'set op->ob_type->tp_name=0xDEADBEEF', - expvalue=42) - - def test_NULL_instance_dict(self): - 'Ensure that a PyInstanceObject with with a NULL in_dict is handled' - self.assertSane(''' -class Foo: - pass -foo = Foo() -foo.an_int = 42 -print foo''', - 'set ((PyInstanceObject*)op)->in_dict = 0', - exptype='Foo') - - def test_builtins_help(self): - 'Ensure that the new-style class _Helper in site.py can be handled' - # (this was the issue causing tracebacks in - # http://bugs.python.org/issue8032#msg100537 ) - - gdb_repr, gdb_output = self.get_gdb_repr('print __builtins__.help', import_site=True) - m = re.match(r'<_Helper at remote 0x[0-9a-f]+>', gdb_repr) - self.assertTrue(m, - msg='Unexpected rendering %r' % gdb_repr) - - def test_selfreferential_list(self): - '''Ensure that a reference loop involving a list doesn't lead proxyval - into an infinite loop:''' - gdb_repr, gdb_output = \ - self.get_gdb_repr("a = [3, 4, 5] ; a.append(a) ; print a") - - self.assertEqual(gdb_repr, '[3, 4, 5, [...]]') - - gdb_repr, gdb_output = \ - self.get_gdb_repr("a = [3, 4, 5] ; b = [a] ; a.append(b) ; print a") - - self.assertEqual(gdb_repr, '[3, 4, 5, [[...]]]') - - def test_selfreferential_dict(self): - '''Ensure that a reference loop involving a dict doesn't lead proxyval - into an infinite loop:''' - gdb_repr, gdb_output = \ - self.get_gdb_repr("a = {} ; b = {'bar':a} ; a['foo'] = b ; print a") - - self.assertEqual(gdb_repr, "{'foo': {'bar': {...}}}") - - def test_selfreferential_old_style_instance(self): - gdb_repr, gdb_output = \ - self.get_gdb_repr(''' -class Foo: - 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)) - - 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() |