1# Copyright (C) 2015-2021 Free Software Foundation, Inc.
2
3# This program is free software; you can redistribute it and/or modify
4# it under the terms of the GNU General Public License as published by
5# the Free Software Foundation; either version 3 of the License, or
6# (at your option) any later version.
7#
8# This program is distributed in the hope that it will be useful,
9# but WITHOUT ANY WARRANTY; without even the implied warranty of
10# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11# GNU General Public License for more details.
12#
13# You should have received a copy of the GNU General Public License
14# along with this program.  If not, see <http://www.gnu.org/licenses/>.
15
16# Test handling of lookup of a symbol that doesn't exist.
17# Efficient handling of this case is important, and not just for typos.
18# Sometimes the debug info for the needed object isn't present.
19
20from perftest import perftest
21from perftest import measure
22from perftest import utils
23
24
25class NullLookup(perftest.TestCaseWithBasicMeasurements):
26    def __init__(self, name, run_names, binfile):
27        # We want to measure time in this test.
28        super(NullLookup, self).__init__(name)
29        self.run_names = run_names
30        self.binfile = binfile
31
32    def warm_up(self):
33        pass
34
35    def execute_test(self):
36        for run in self.run_names:
37            this_run_binfile = "%s-%s" % (self.binfile, utils.convert_spaces(run))
38            utils.select_file(this_run_binfile)
39            utils.runto_main()
40            utils.safe_execute("mt expand-symtabs")
41            iteration = 5
42            while iteration > 0:
43                utils.safe_execute("mt flush symbol-cache")
44                func = lambda: utils.safe_execute("p symbol_not_found")
45                self.measure.measure(func, run)
46                iteration -= 1
47