summaryrefslogtreecommitdiff
path: root/selftest/testlist.py
blob: 5102f4288bd84a534e60e4af679c4437cc360b7b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
# testlist.py -- Test list
# Copyright (C) 2012 Jelmer Vernooij <jelmer@samba.org>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; version 3
# of the License or (at your option) any later version of
# the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
# MA  02110-1301, USA.

"""Selftest test list management."""

__all__ = ['find_in_list', 'read_test_regexes', 'read_testlist']

import os
import re
import sys

def find_in_list(list, fullname):
    """Find test in list.

    :param list: List with 2-tuples with regex and reason
    """
    for (regex, reason) in list:
        if re.match(regex, fullname):
            if reason is not None:
                return reason
            else:
                return ""
    return None


def read_test_regexes(f):
    """Read tuples with regular expression and optional string from a file.

    :param f: File-like object to read from
    :return: Iterator over tuples with regular expression and test name
    """
    for l in f.readlines():
        l = l.strip()
        if l[0] == "#":
            continue
        try:
            (test, reason) = l.split("#", 1)
        except ValueError:
            yield l, None
        else:
            yield test.strip(), reason.strip()


def should_run_test(tests, name):
    if tests == []:
        return True
    for test in tests:
        if re.match(test, name):
            return True
    return False


def read_testlist(inf, outf):
    """Read a list of tests from a file.

    :param inf: File-like object to read from.
    :param outf: File-like object to write to.
    :return: Iterator over tuples describing tests
    """
    while True:
        l = inf.readline()
        if l == '':
            return
        if l.startswith("-- TEST") and l.endswith(" --\n"):
            supports_loadlist = l.startswith("-- TEST-LOADLIST")
            supports_idlist = l.startswith("-- TEST-IDLIST")
            name = inf.readline().rstrip("\n")
            env = inf.readline().rstrip("\n")
            cmdline = inf.readline().rstrip("\n")
            yield (name, env, cmdline, supports_loadlist, supports_idlist)
        else:
            outf.write(l)


def read_restricted_test_list(f):
    for l in f.readlines():
        yield l.strip()


class RestrictedTestManager(object):
    """Test manager which can filter individual tests that should be run."""

    def __init__(self, test_list):
        self.test_list = test_list
        self.unused = set(self.test_list)

    @classmethod
    def from_path(cls, path):
        f = open(path, 'r')
        try:
            return cls(read_restricted_test_list(f))
        finally:
            f.close()

    def should_run_testsuite(self, name):
        """Determine whether a testsuite should be run.

        :param name: Name of the testsuite
        :return: None if full testsuite should be run,
            a list of subtests to run or [] if it should
            not be run.
        """
        match = []
        for r in self.test_list:
            if r == name:
                match = None
                if r in self.unused:
                    self.unused.remove(r)
            elif r.startswith(name + "."):
                if match is not None:
                    match.append(r[len(name+"."):])
                if r in self.unused:
                    self.unused.remove(r)
        return match

    def iter_unused(self):
        """Iterate over entry entries that were unused.

        :return: Iterator over test list entries that were not used.
        """
        return iter(self.unused)


def open_file_or_pipe(path, mode):
    """Open a file or pipe.

    :param path: Path to open; if it ends with | it is assumed to be a
        command to run
    :param mode: Mode with which to open it
    :return: File-like object
    """
    if path.endswith("|"):
        return os.popen(path[:-1], mode)
    return open(path, mode)


def read_testlist_file(fn, outf=None):
    """Read testlist file.

    :param fn: Path to read (assumed to be a command to run if it ends with |)
    :param outf: File-like object to pass non-test data through to
        (defaults to stdout)
    :return: Iterator over test suites (see read_testlist)
    """
    if outf is None:
        outf = sys.stdout
    inf = open_file_or_pipe(fn, 'r')
    try:
        for testsuite in read_testlist(inf, outf):
            yield testsuite
    finally:
        inf.close()