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"""
Set breakpoints on objective-c class and instance methods in foundation.
Also lookup objective-c data types and evaluate expressions.
"""
import os, time
import unittest2
import lldb
from lldbtest import *
@unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
class FoundationTestCase(TestBase):
mydir = "foundation"
def test_break_with_dsym(self):
"""Test setting objc breakpoints using 'regexp-break' and 'breakpoint set'."""
self.buildDsym()
self.break_on_objc_methods()
def test_break_with_dwarf(self):
"""Test setting objc breakpoints using 'regexp-break' and 'breakpoint set'."""
self.buildDwarf()
self.break_on_objc_methods()
@unittest2.expectedFailure
# rdar://problem/8492646
def test_data_type_and_expr_with_dsym(self):
"""Lookup objective-c data types and evaluate expressions."""
self.buildDsym()
self.data_type_and_expr_objc()
@unittest2.expectedFailure
# rdar://problem/8492646
def test_data_type_and_expr_with_dwarf(self):
"""Lookup objective-c data types and evaluate expressions."""
self.buildDwarf()
self.data_type_and_expr_objc()
def break_on_objc_methods(self):
"""Test setting objc breakpoints using 'regexp-break' and 'breakpoint set'."""
exe = os.path.join(os.getcwd(), "a.out")
self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
# Stop at +[NSString stringWithFormat:].
self.expect("regexp-break +[NSString stringWithFormat:]", BREAKPOINT_CREATED,
startstr = "Breakpoint created: 1: name = '+[NSString stringWithFormat:]', locations = 1")
# Stop at -[MyString initWithNSString:].
self.expect("breakpoint set -n '-[MyString initWithNSString:]'", BREAKPOINT_CREATED,
startstr = "Breakpoint created: 2: name = '-[MyString initWithNSString:]', locations = 1")
# Stop at the "description" selector.
self.expect("breakpoint set -S description", BREAKPOINT_CREATED,
startstr = "Breakpoint created: 3: name = 'description', locations = 1")
# Stop at -[NSAutoreleasePool release].
self.expect("regexp-break -[NSAutoreleasePool release]", BREAKPOINT_CREATED,
startstr = "Breakpoint created: 4: name = '-[NSAutoreleasePool release]', locations = 1")
self.runCmd("run", RUN_SUCCEEDED)
# First stop is +[NSString stringWithFormat:].
self.expect("thread backtrace", "Stop at +[NSString stringWithFormat:]",
substrs = ["Foundation`+[NSString stringWithFormat:]"])
self.runCmd("process continue")
# Followed by a.out`-[MyString initWithNSString:].
self.expect("thread backtrace", "Stop at a.out`-[MyString initWithNSString:]",
substrs = ["a.out`-[MyString initWithNSString:]"])
self.runCmd("process continue")
# Followed by -[MyString description].
self.expect("thread backtrace", "Stop at -[MyString description]",
substrs = ["a.out`-[MyString description]"])
self.runCmd("process continue")
# Followed by -[NSAutoreleasePool release].
self.expect("thread backtrace", "Stop at -[NSAutoreleasePool release]",
substrs = ["Foundation`-[NSAutoreleasePool release]"])
def data_type_and_expr_objc(self):
"""Lookup objective-c data types and evaluate expressions."""
exe = os.path.join(os.getcwd(), "a.out")
self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
# Stop at -[MyString description].
self.expect("breakpoint set -n '-[MyString description]", BREAKPOINT_CREATED,
startstr = "Breakpoint created: 1: name = '-[MyString description]', locations = 1")
self.runCmd("run", RUN_SUCCEEDED)
# The backtrace should show we stop at -[MyString description].
self.expect("thread backtrace", "Stop at -[MyString description]",
substrs = ["a.out`-[MyString description]"])
# Lookup objc data type MyString and evaluate some expressions.
self.expect("image lookup -t NSString", DATA_TYPES_DISPLAYED_CORRECTLY,
substrs = ['name = "NSString"',
'clang_type = "@interface NSString@end"'])
self.expect("image lookup -t MyString", DATA_TYPES_DISPLAYED_CORRECTLY,
substrs = ['name = "MyString"',
'clang_type = "@interface MyString'])
self.expect("frame variable -s", VARIABLES_DISPLAYED_CORRECTLY,
substrs = ["ARG: (MyString *) self",
"ARG: (struct objc_selector *) _cmd"])
self.expect("expr self->non_existent_member", COMMAND_FAILED_AS_EXPECTED, error=True,
startstr = "error: 'MyString' does not have a member named 'non_existent_member'")
# rdar://problem/8492646
# test/foundation fails after updating to tot r115023
# self->str displays nothing as output
self.expect("frame variable self->str", VARIABLES_DISPLAYED_CORRECTLY,
startstr = "(NSString *) self->str")
# rdar://problem/8447030
# 'frame variable self->date' displays the wrong data member
self.expect("frame variable self->date", VARIABLES_DISPLAYED_CORRECTLY,
startstr = "(NSDate *) self->date")
# TODO: use expression parser.
# self.runCmd("expr self->str")
# self.runCmd("expr self->date")
# (lldb) expr self->str
# error: 'MyString' does not have a member named 'str'
# error: 1 errors parsing expression
# Couldn't parse the expresssion
# (lldb) expr self->date
# error: 'MyString' does not have a member named 'date'
# error: 1 errors parsing expression
# Couldn't parse the expresssion
if __name__ == '__main__':
import atexit
lldb.SBDebugger.Initialize()
atexit.register(lambda: lldb.SBDebugger.Terminate())
unittest2.main()
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