4570d3eba0
This has led to many test suite failures because of copy and paste where new test cases were based off of other test cases and the "mydir" variable wasn't updated. Now you can call your superclasses "compute_mydir()" function with "__file__" as the sole argument and the relative path will be computed for you. llvm-svn: 196985
134 lines
4.2 KiB
Python
134 lines
4.2 KiB
Python
"""Test evaluating expressions repeatedly comparing lldb against gdb."""
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import os, sys
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import unittest2
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import lldb
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import pexpect
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from lldbbench import *
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class RepeatedExprsCase(BenchBase):
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mydir = TestBase.compute_mydir(__file__)
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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.lldb_avg = None
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self.gdb_avg = None
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self.count = lldb.bmIterationCount
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if self.count <= 0:
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self.count = 100
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@benchmarks_test
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def test_compare_lldb_to_gdb(self):
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"""Test repeated expressions with lldb vs. gdb."""
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self.buildDefault()
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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 benchmark:", self.stopwatch
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self.run_gdb_repeated_exprs(self.exe_name, self.count)
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print "gdb benchmark:", self.stopwatch
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print "lldb_avg/gdb_avg: %f" % (self.lldb_avg/self.gdb_avg)
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def run_lldb_repeated_exprs(self, exe_name, count):
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exe = os.path.join(os.getcwd(), 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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# So that the child gets torn down after the test.
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self.child = pexpect.spawn('%s %s %s' % (self.lldbExec, self.lldbOption, exe))
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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('breakpoint set -f %s -l %d' % (self.source, self.line_to_break))
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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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# Reset the stopwatch now.
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self.stopwatch.reset()
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for i in range(count):
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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('process continue')
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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.lldb_avg = self.stopwatch.avg()
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if self.TraceOn():
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print "lldb expression benchmark:", str(self.stopwatch)
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self.child = None
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def run_gdb_repeated_exprs(self, exe_name, count):
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exe = os.path.join(os.getcwd(), exe_name)
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# Set self.child_prompt, which is "(gdb) ".
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self.child_prompt = '(gdb) '
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prompt = self.child_prompt
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# So that the child gets torn down after the test.
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self.child = pexpect.spawn('gdb --nx %s' % exe)
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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('break %s:%d' % (self.source, self.line_to_break))
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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 = 'print ptr[j]->point.x'
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expr_cmd2 = 'print ptr[j]->point.y'
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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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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('continue')
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child.expect_exact(prompt)
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child.sendline('quit')
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child.expect_exact('The program is running. Exit anyway?')
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child.sendline('y')
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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.gdb_avg = self.stopwatch.avg()
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if self.TraceOn():
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print "gdb expression benchmark:", str(self.stopwatch)
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self.child = None
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if __name__ == '__main__':
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import atexit
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lldb.SBDebugger.Initialize()
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atexit.register(lambda: lldb.SBDebugger.Terminate())
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unittest2.main()
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