Files
llvm/lldb/test/API/linux/add-symbols/TestTargetSymbolsAddCommand.py
Jonas Devlieghere ce825e4674 [lldb] Add assertState function to the API test suite
Add a function to make it easier to debug a test failure caused by an
unexpected state.

Currently, tests are using assertEqual which results in a cryptic error
message: "AssertionError: 5 != 10". Even when a test provides a message
to make it clear why a particular state is expected, you still have to
figure out which of the two was the expected state, and what the other
value corresponds to.

We have a function in lldbutil that helps you convert the state number
into a user readable string. This patch adds a wrapper around
assertEqual specifically for comparing states and reporting better error
messages.

The aforementioned error message now looks like this: "AssertionError:
stopped (5) != exited (10)". If the user provided a message, that
continues to get printed as well.

Differential revision: https://reviews.llvm.org/D127355
2022-06-08 16:16:38 -07:00

51 lines
1.9 KiB
Python

""" Testing explicit symbol loading via target symbols add. """
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class TargetSymbolsAddCommand(TestBase):
mydir = TestBase.compute_mydir(__file__)
def setUp(self):
TestBase.setUp(self)
self.source = 'main.c'
@no_debug_info_test # Prevent the genaration of the dwarf version of this test
@skipUnlessPlatform(['linux'])
def test_target_symbols_add(self):
"""Test that 'target symbols add' can load the symbols
even if gnu.build-id and gnu_debuglink are not present in the module.
Similar to test_add_dsym_mid_execution test for macos."""
self.build()
exe = self.getBuildArtifact("stripped.out")
self.target = self.dbg.CreateTarget(exe)
self.assertTrue(self.target, VALID_TARGET)
main_bp = self.target.BreakpointCreateByName("main", "stripped.out")
self.assertTrue(main_bp, VALID_BREAKPOINT)
self.process = self.target.LaunchSimple(
None, None, self.get_process_working_directory())
self.assertTrue(self.process, PROCESS_IS_VALID)
# The stop reason of the thread should be breakpoint.
self.assertState(self.process.GetState(), lldb.eStateStopped,
STOPPED_DUE_TO_BREAKPOINT)
exe_module = self.target.GetModuleAtIndex(0)
# Check that symbols are not loaded and main.c is not know to be
# the source file.
self.expect("frame select", substrs=['main.c'], matching=False)
# Tell LLDB that a.out has symbols for stripped.out
self.runCmd("target symbols add -s %s %s" %
(exe, self.getBuildArtifact("a.out")))
# Check that symbols are now loaded and main.c is in the output.
self.expect("frame select", substrs=['main.c'])