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"""
Test that an expression that returns no result returns a sensible error.
"""
from __future__ import print_function
import os
import time
import re
import lldb
import lldbsuite.test.lldbutil as lldbutil
from lldbsuite.test.lldbtest import *
class TestExprNoResult(TestBase):
mydir = TestBase.compute_mydir(__file__)
# If your test case doesn't stress debug info, the
# set this to true. That way it won't be run once for
# each debug info format.
NO_DEBUG_INFO_TESTCASE = True
def test_no_result(self):
"""Run an expression that has no result, check the error."""
self.build()
self.main_source_file = lldb.SBFileSpec("main.c")
self.sample_test()
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
def sample_test(self):
(target, process, thread, bkpt) = lldbutil.run_to_source_breakpoint(self,
"Set a breakpoint here", self.main_source_file)
frame = thread.GetFrameAtIndex(0)
result = frame.EvaluateExpression("int $x = 10")
# No result expressions are considered to fail:
self.assertTrue(result.GetError().Fail(), "An expression with no result is a failure.")
# But the reason should be eExpressionProducedNoResult
self.assertEqual(result.GetError().GetError(), lldb.eExpressionProducedNoResult,
"But the right kind of failure")
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