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"""
Tests target.expr-error-limit.
"""
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class TestCase(TestBase):
@no_debug_info_test
def test(self):
# FIXME: The only reason this test needs to create a real target is because
# the settings of the dummy target can't be changed with `settings set`.
self.build()
target = self.createTestTarget()
# Our test expression that is just several lines of malformed
# integer literals (with a 'yerror' integer suffix). Every error
# has its own unique string (1, 2, 3, 4) and is on its own line
# that we can later find it when Clang prints the respective source
# code for each error to the error output.
# For example, in the error output below we would look for the
# unique `1yerror` string:
# error: <expr>:1:2: invalid suffix 'yerror' on integer constant
# 1yerror
# ^
expr = "1yerror;\n2yerror;\n3yerror;\n4yerror;"
options = lldb.SBExpressionOptions()
options.SetAutoApplyFixIts(False)
# Evaluate the expression and check that only the first 2 errors are
# emitted.
self.runCmd("settings set target.expr-error-limit 2")
eval_result = target.EvaluateExpression(expr, options)
self.assertIn("1yerror", str(eval_result.GetError()))
self.assertIn("2yerror", str(eval_result.GetError()))
self.assertNotIn("3yerror", str(eval_result.GetError()))
self.assertNotIn("4yerror", str(eval_result.GetError()))
# Change to a 3 errors and check again which errors are emitted.
self.runCmd("settings set target.expr-error-limit 3")
eval_result = target.EvaluateExpression(expr, options)
self.assertIn("1yerror", str(eval_result.GetError()))
self.assertIn("2yerror", str(eval_result.GetError()))
self.assertIn("3yerror", str(eval_result.GetError()))
self.assertNotIn("4yerror", str(eval_result.GetError()))
# Disable the error limit and make sure all errors are emitted.
self.runCmd("settings set target.expr-error-limit 0")
eval_result = target.EvaluateExpression(expr, options)
self.assertIn("1yerror", str(eval_result.GetError()))
self.assertIn("2yerror", str(eval_result.GetError()))
self.assertIn("3yerror", str(eval_result.GetError()))
self.assertIn("4yerror", str(eval_result.GetError()))
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