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

42 lines
1.5 KiB
Python

""" Testing debugging of a binary with "mixed" dwarf (with/without fission). """
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class TestMixedDwarfBinary(TestBase):
mydir = TestBase.compute_mydir(__file__)
@no_debug_info_test # Prevent the genaration of the dwarf version of this test
@add_test_categories(["dwo"])
@skipUnlessPlatform(["linux"])
def test_mixed_dwarf(self):
"""Test that 'frame variable' works
for the executable built from two source files compiled
with/whithout -gsplit-dwarf correspondingly."""
self.build()
exe = self.getBuildArtifact("a.out")
self.target = self.dbg.CreateTarget(exe)
self.assertTrue(self.target, VALID_TARGET)
main_bp = self.target.BreakpointCreateByName("g", "a.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)
frame = self.process.GetThreadAtIndex(0).GetFrameAtIndex(0)
x = frame.FindVariable("x")
self.assertTrue(x.IsValid(), "x is not valid")
y = frame.FindVariable("y")
self.assertTrue(y.IsValid(), "y is not valid")