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1# Copyright 2012 the V8 project authors. All rights reserved.
2# Redistribution and use in source and binary forms, with or without
3# modification, are permitted provided that the following conditions are
4# met:
5#
6#     * Redistributions of source code must retain the above copyright
7#       notice, this list of conditions and the following disclaimer.
8#     * Redistributions in binary form must reproduce the above
9#       copyright notice, this list of conditions and the following
10#       disclaimer in the documentation and/or other materials provided
11#       with the distribution.
12#     * Neither the name of Google Inc. nor the names of its
13#       contributors may be used to endorse or promote products derived
14#       from this software without specific prior written permission.
15#
16# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28
29from . import output
30
31class TestCase(object):
32  def __init__(self, suite, path, variant=None, flags=None,
33               override_shell=None):
34    self.suite = suite        # TestSuite object
35    self.path = path          # string, e.g. 'div-mod', 'test-api/foo'
36    self.flags = flags or []  # list of strings, flags specific to this test
37    self.variant = variant    # name of the used testing variant
38    self.override_shell = override_shell
39    self.outcomes = frozenset([])
40    self.output = None
41    self.id = None  # int, used to map result back to TestCase instance
42    self.duration = None  # assigned during execution
43    self.run = 1  # The nth time this test is executed.
44
45  def CopyAddingFlags(self, variant, flags):
46    copy = TestCase(self.suite, self.path, variant, self.flags + flags,
47                    self.override_shell)
48    copy.outcomes = self.outcomes
49    return copy
50
51  def PackTask(self):
52    """
53    Extracts those parts of this object that are required to run the test
54    and returns them as a JSON serializable object.
55    """
56    assert self.id is not None
57    return [self.suitename(), self.path, self.variant, self.flags,
58            self.override_shell, list(self.outcomes or []),
59            self.id]
60
61  @staticmethod
62  def UnpackTask(task):
63    """Creates a new TestCase object based on packed task data."""
64    # For the order of the fields, refer to PackTask() above.
65    test = TestCase(str(task[0]), task[1], task[2], task[3], task[4])
66    test.outcomes = frozenset(task[5])
67    test.id = task[6]
68    test.run = 1
69    return test
70
71  def SetSuiteObject(self, suites):
72    self.suite = suites[self.suite]
73
74  def PackResult(self):
75    """Serializes the output of the TestCase after it has run."""
76    self.suite.StripOutputForTransmit(self)
77    return [self.id, self.output.Pack(), self.duration]
78
79  def MergeResult(self, result):
80    """Applies the contents of a Result to this object."""
81    assert result[0] == self.id
82    self.output = output.Output.Unpack(result[1])
83    self.duration = result[2]
84
85  def suitename(self):
86    return self.suite.name
87
88  def GetLabel(self):
89    return self.suitename() + "/" + self.suite.CommonTestName(self)
90
91  def shell(self):
92    if self.override_shell:
93      return self.override_shell
94    return self.suite.shell()
95
96  def __getstate__(self):
97    """Representation to pickle test cases.
98
99    The original suite won't be sent beyond process boundaries. Instead
100    send the name only and retrieve a process-local suite later.
101    """
102    return dict(self.__dict__, suite=self.suite.name)
103
104  def __cmp__(self, other):
105    # Make sure that test cases are sorted correctly if sorted without
106    # key function. But using a key function is preferred for speed.
107    return cmp(
108        (self.suite.name, self.path, self.flags),
109        (other.suite.name, other.path, other.flags),
110    )
111
112  def __str__(self):
113    return "[%s/%s  %s]" % (self.suite.name, self.path, self.flags)
114