779bbbf27f
Replace forms of `assertTrue(err.Success())` with `assertSuccess(err)` (added in D82759). * `assertSuccess` prints out the error's message * `assertSuccess` expresses explicit higher level semantics, both to the reader and for test failure output * `assertSuccess` seems not to be well known, using it where possible will help spread knowledge * `assertSuccess` statements are more succinct Differential Revision: https://reviews.llvm.org/D119616
59 lines
2.2 KiB
Python
59 lines
2.2 KiB
Python
"""Test reading c-strings from memory via SB API."""
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import os
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import lldb
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from lldbsuite.test.decorators import *
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from lldbsuite.test.lldbtest import *
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from lldbsuite.test import lldbutil
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class TestReadMemCString(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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NO_DEBUG_INFO_TESTCASE = True
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def test_read_memory_c_string(self):
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"""Test corner case behavior of SBProcess::ReadCStringFromMemory"""
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self.build()
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self.dbg.SetAsync(False)
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self.main_source = "main.c"
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self.main_source_path = os.path.join(self.getSourceDir(),
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self.main_source)
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self.main_source_spec = lldb.SBFileSpec(self.main_source_path)
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self.exe = self.getBuildArtifact("read-mem-cstring")
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(target, process, thread, bkpt) = lldbutil.run_to_source_breakpoint(
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self, 'breakpoint here', self.main_source_spec, None, self.exe)
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frame = thread.GetFrameAtIndex(0)
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err = lldb.SBError()
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empty_str_addr = frame.FindVariable("empty_string").GetValueAsUnsigned(err)
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self.assertSuccess(err)
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self.assertTrue(empty_str_addr != lldb.LLDB_INVALID_ADDRESS)
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one_letter_str_addr = frame.FindVariable("one_letter_string").GetValueAsUnsigned(err)
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self.assertSuccess(err)
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self.assertTrue(one_letter_str_addr != lldb.LLDB_INVALID_ADDRESS)
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invalid_memory_str_addr = frame.FindVariable("invalid_memory_string").GetValueAsUnsigned(err)
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self.assertSuccess(err)
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self.assertTrue(invalid_memory_str_addr != lldb.LLDB_INVALID_ADDRESS)
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# Important: An empty (0-length) c-string must come back as a Python string, not a
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# None object.
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empty_str = process.ReadCStringFromMemory(empty_str_addr, 2048, err)
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self.assertSuccess(err)
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self.assertEqual(empty_str, "")
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one_letter_string = process.ReadCStringFromMemory(one_letter_str_addr, 2048, err)
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self.assertSuccess(err)
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self.assertEqual(one_letter_string, "1")
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invalid_memory_string = process.ReadCStringFromMemory(invalid_memory_str_addr, 2048, err)
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self.assertTrue(err.Fail())
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self.assertTrue(invalid_memory_string == "" or invalid_memory_string == None)
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