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[LLDB][Minidump] Add Multiplatform test to ensure determinism #108602

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Merged
merged 2 commits into from
Sep 26, 2024
Merged

[LLDB][Minidump] Add Multiplatform test to ensure determinism #108602

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41bb7f8
Add multiplatform minidump determinism test
Jlalond Sep 13, 2024
550a26a
Comment cleanup
Jlalond Sep 13, 2024
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43 changes: 43 additions & 0 deletions lldb/test/API/functionalities/process_save_core_minidump/TestProcessSaveCoreMinidump.py
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Original file line number Diff line number Diff line change
Expand Up @@ -522,3 +522,46 @@ def minidump_deleted_on_save_failure(self):

finally:
self.assertTrue(self.dbg.DeleteTarget(target))

def minidump_deterministic_difference(self):
"""Test that verifies that two minidumps produced are identical."""

self.build()
exe = self.getBuildArtifact("a.out")
try:
target = self.dbg.CreateTarget(exe)
process = target.LaunchSimple(
None, None, self.get_process_working_directory()
)
self.assertState(process.GetState(), lldb.eStateStopped)

core_styles = [
lldb.eSaveCoreStackOnly,
lldb.eSaveCoreDirtyOnly,
lldb.eSaveCoreFull,
]
for style in core_styles:
spec_one = lldb.SBFileSpec(self.getBuildArtifact("core.one.dmp"))
spec_two = lldb.SBFileSpec(self.getBuildArtifact("core.two.dmp"))
options = lldb.SBSaveCoreOptions()
options.SetOutputFile(spec_one)
options.SetPluginName("minidump")
options.SetStyle(style)
error = process.SaveCore(options)
self.assertTrue(error.Success())
options.SetOutputFile(spec_two)
error = process.SaveCore(options)
self.assertTrue(error.Success())

file_one = None
file_two = None
with open(spec_one.GetFileName(), mode="rb") as file:
file_one = file.read()
with open(spec_two.GetFileName(), mode="rb") as file:
file_two = file.read()
self.assertEqual(file_one, file_two)
self.assertTrue(os.unlink(spec_one.GetFileName()))
self.assertTrue(os.unlink(spec_two.GetFileName()))

finally:
self.assertTrue(self.dbg.DeleteTarget(target))
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