# coding=utf8
"""
Test lldb data formatter subsystem.
"""
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class LibcxxStringDataFormatterTestCase(TestBase):
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
# Find the line number to break at.
self.main_spec = lldb.SBFileSpec("main.cpp")
self.namespace = "std"
@add_test_categories(["libc++"])
@expectedFailureAll(
bugnumber="llvm.org/pr36109", debug_info="gmodules", triple=".*-android"
)
# Inline namespace is randomly ignored as Clang due to broken lookup inside
# the std namespace.
@expectedFailureAll(debug_info="gmodules")
def test_with_run_command(self):
"""Test that that file and class static variables display correctly."""
self.build()
(target, process, thread, bkpt) = lldbutil.run_to_source_breakpoint(
self, "Set break point at this line.", self.main_spec
)
frame = thread.frames[0]
# This is the function to remove the custom formats in order to have a
# clean slate for the next test case.
def cleanup():
self.runCmd("type format clear", check=False)
self.runCmd("type summary clear", check=False)
self.runCmd("type filter clear", check=False)
self.runCmd("type synth clear", check=False)
self.runCmd("settings set target.max-children-count 256", check=False)
is_64_bit = self.process().GetAddressByteSize() == 8
# Execute the cleanup function during test case tear down.
self.addTearDownHook(cleanup)
ns = self.namespace
self.expect(
"frame variable",
substrs=[
'(%s::wstring) wempty = L""' % ns,
'(%s::wstring) s = L"hello world! מזל טוב!"' % ns,
'(%s::wstring) S = L"!!!!"' % ns,
"(const wchar_t *) mazeltov = 0x",
'L"מזל טוב"',
'(%s::string) empty = ""' % ns,
'(%s::string) q = "hello world"' % ns,
'(%s::string) Q = "quite a long std::strin with lots of info inside it"'
% ns,
'(%s::string) IHaveEmbeddedZeros = "a\\0b\\0c\\0d"' % ns,
'(%s::wstring) IHaveEmbeddedZerosToo = L"hello world!\\0てざ ル゜䋨ミ㠧槊 きゅへ狦穤襩 じゃ馩リョ 䤦監"'
% ns,
'(%s::u16string) u16_string = u"ß水氶"' % ns,
# FIXME: This should have a 'u' prefix.
'(%s::u16string) u16_empty = ""' % ns,
'(%s::u32string) u32_string = U"🍄🍅🍆🍌"' % ns,
# FIXME: This should have a 'U' prefix.
'(%s::u32string) u32_empty = ""' % ns,
"(%s::string *) null_str = nullptr" % ns,
],
)
thread.StepOver()
TheVeryLongOne = frame.FindVariable("TheVeryLongOne")
summaryOptions = lldb.SBTypeSummaryOptions()
summaryOptions.SetCapping(lldb.eTypeSummaryUncapped)
uncappedSummaryStream = lldb.SBStream()
TheVeryLongOne.GetSummary(uncappedSummaryStream, summaryOptions)
uncappedSummary = uncappedSummaryStream.GetData()
self.assertGreater(
uncappedSummary.find("someText"),
0,
"uncappedSummary does not include the full string",
)
summaryOptions.SetCapping(lldb.eTypeSummaryCapped)
cappedSummaryStream = lldb.SBStream()
TheVeryLongOne.GetSummary(cappedSummaryStream, summaryOptions)
cappedSummary = cappedSummaryStream.GetData()
self.assertLessEqual(
cappedSummary.find("someText"), 0, "cappedSummary includes the full string"
)
self.expect_expr(
"s", result_type=ns + "::wstring", result_summary='L"hello world! מזל טוב!"'
)
self.expect_expr(
"q", result_type=ns + "::string", result_summary='"hello world"'
)
self.expect_expr(
"Q",
result_type=ns + "::string",
result_summary='"quite a long std::strin with lots of info inside it"',
)
self.expect(
"frame variable",
substrs=[
'(%s::wstring) S = L"!!!!!"' % ns,
"(const wchar_t *) mazeltov = 0x",
'L"מזל טוב"',
'(%s::string) q = "hello world"' % ns,
'(%s::string) Q = "quite a long std::strin with lots of info inside it"'
% ns,
'(%s::string) IHaveEmbeddedZeros = "a\\0b\\0c\\0d"' % ns,
'(%s::wstring) IHaveEmbeddedZerosToo = L"hello world!\\0てざ ル゜䋨ミ㠧槊 きゅへ狦穤襩 じゃ馩リョ 䤦監"'
% ns,
'(%s::u16string) u16_string = u"ß水氶"' % ns,
'(%s::u32string) u32_string = U"🍄🍅🍆🍌"' % ns,
'(%s::u32string) u32_empty = ""' % ns,
"(%s::string *) null_str = nullptr" % ns,
],
)
# The test assumes that std::string is in its cap-size-data layout.
is_alternate_layout = (
"arm" in self.getArchitecture()
) and self.platformIsDarwin()
if is_64_bit and not is_alternate_layout:
self.expect(
"frame variable garbage1", substrs=["garbage1 = Summary Unavailable"]
)
self.expect(
"frame variable garbage2", substrs=[r'garbage2 = "\xfa\xfa\xfa\xfa"']
)
self.expect("frame variable garbage3", substrs=[r'garbage3 = "\xf0\xf0"'])
self.expect(
"frame variable garbage4", substrs=["garbage4 = Summary Unavailable"]
)
self.expect(
"frame variable garbage5", substrs=["garbage5 = Summary Unavailable"]
)
# Finally, make sure that if the string is not readable, we give an error:
bkpt_2 = target.BreakpointCreateBySourceRegex(
"Break here to look at bad string", self.main_spec
)
self.assertEqual(bkpt_2.GetNumLocations(), 1, "Got one location")
threads = lldbutil.continue_to_breakpoint(process, bkpt_2)
self.assertEqual(len(threads), 1, "Stopped at second breakpoint")
frame = threads[0].frames[0]
var = frame.FindVariable("in_str")
self.assertTrue(var.GetError().Success(), "Made variable")
summary = var.GetSummary()
self.assertEqual(summary, "Summary Unavailable", "No summary for bad value")
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