78 lines
2.4 KiB
Python
78 lines
2.4 KiB
Python
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"""Test lldb's expression evaluations and collect statistics."""
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import sys
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import lldb
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from lldbsuite.test.decorators import *
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from lldbsuite.test.lldbbench import *
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from lldbsuite.test.lldbtest import *
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from lldbsuite.test import configuration
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from lldbsuite.test import lldbutil
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class ExpressionEvaluationCase(BenchBase):
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def setUp(self):
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BenchBase.setUp(self)
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self.source = "main.cpp"
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self.line_to_break = line_number(self.source, "// Set breakpoint here.")
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self.count = 25
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@benchmarks_test
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@expectedFailureAll(
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oslist=["windows"],
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bugnumber="llvm.org/pr22274: need a pexpect replacement for windows",
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)
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def test_expr_cmd(self):
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"""Test lldb's expression commands and collect statistics."""
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self.build()
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self.exe_name = "a.out"
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print()
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self.run_lldb_repeated_exprs(self.exe_name, self.count)
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print("lldb expr cmd benchmark:", self.stopwatch)
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def run_lldb_repeated_exprs(self, exe_name, count):
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import pexpect
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exe = self.getBuildArtifact(exe_name)
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# Set self.child_prompt, which is "(lldb) ".
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self.child_prompt = "(lldb) "
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prompt = self.child_prompt
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# Reset the stopwatch now.
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self.stopwatch.reset()
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for i in range(count):
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# So that the child gets torn down after the test.
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self.child = pexpect.spawn(
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"%s %s %s" % (lldbtest_config.lldbExec, self.lldbOption, exe)
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)
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child = self.child
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# Turn on logging for what the child sends back.
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if self.TraceOn():
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child.logfile_read = sys.stdout
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child.expect_exact(prompt)
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child.sendline(
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"breakpoint set -f %s -l %d" % (self.source, self.line_to_break)
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)
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child.expect_exact(prompt)
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child.sendline("run")
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child.expect_exact(prompt)
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expr_cmd1 = "expr ptr[j]->point.x"
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expr_cmd2 = "expr ptr[j]->point.y"
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with self.stopwatch:
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child.sendline(expr_cmd1)
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child.expect_exact(prompt)
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child.sendline(expr_cmd2)
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child.expect_exact(prompt)
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child.sendline("quit")
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try:
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self.child.expect(pexpect.EOF)
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except:
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pass
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self.child = None
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