1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/memory/replace/dmd/check_test_output.py Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,128 @@
1.4 +#! /usr/bin/python
1.5 +
1.6 +"""This script takes the file produced by DMD's test mode and checks its
1.7 +correctness.
1.8 +
1.9 +It produces the following output files: $TMP/test-{fixed,filtered,diff}.dmd.
1.10 +
1.11 +It runs the appropriate fix* script to get nice stack traces. It also
1.12 +filters out platform-specific details from the test output file.
1.13 +
1.14 +Note: you must run this from the same directory that you invoked DMD's test
1.15 +mode, otherwise the fix* script will not work properly, because some of the
1.16 +paths in the test output are relative.
1.17 +
1.18 +"""
1.19 +
1.20 +from __future__ import print_function
1.21 +
1.22 +import os
1.23 +import platform
1.24 +import re
1.25 +import subprocess
1.26 +import sys
1.27 +import tempfile
1.28 +
1.29 +
1.30 +def main():
1.31 +
1.32 + # Arguments
1.33 +
1.34 + if (len(sys.argv) != 3):
1.35 + print("usage:", sys.argv[0], "<topsrcdir> <test.dmd>")
1.36 + sys.exit(1)
1.37 +
1.38 + srcdir = sys.argv[1]
1.39 +
1.40 + # Filenames
1.41 +
1.42 + tempdir = tempfile.gettempdir()
1.43 + in_name = sys.argv[2]
1.44 + fixed_name = tempdir + os.sep + "test-fixed.dmd"
1.45 + filtered_name = tempdir + os.sep + "test-filtered.dmd"
1.46 + diff_name = tempdir + os.sep + "test-diff.dmd"
1.47 + expected_name = srcdir + os.sep + \
1.48 + "memory/replace/dmd/test-expected.dmd"
1.49 +
1.50 + # Fix stack traces
1.51 +
1.52 + print("fixing output to", fixed_name)
1.53 +
1.54 + sysname = platform.system()
1.55 + if sysname == "Linux":
1.56 + fix = srcdir + os.sep + "tools/rb/fix-linux-stack.pl"
1.57 + elif sysname == "Darwin":
1.58 + fix = srcdir + os.sep + "tools/rb/fix_macosx_stack.py"
1.59 + else:
1.60 + print("unhandled platform: " + sysname, file=sys.stderr)
1.61 + sys.exit(1)
1.62 +
1.63 + subprocess.call(fix, stdin=open(in_name, "r"),
1.64 + stdout=open(fixed_name, "w"))
1.65 +
1.66 + # Filter output
1.67 +
1.68 + # In stack trace records we filter out most stack frames. The only thing
1.69 + # we leave behind is a "DMD.cpp" entry if we see one or more frames that
1.70 + # have DMD.cpp in them. There is simply too much variation to do anything
1.71 + # better than that.
1.72 + #
1.73 + # As for stack frame records, alas, we filter them out entirely because
1.74 + # they have even more variation.
1.75 +
1.76 + print("filtering output to", filtered_name)
1.77 +
1.78 + with open(fixed_name, "r") as fin, \
1.79 + open(filtered_name, "w") as fout:
1.80 +
1.81 + test_frame_re = re.compile(r".*(DMD.cpp)")
1.82 +
1.83 + for line in fin:
1.84 + if re.match(r" (Allocated at|Reported( again)? at)", line):
1.85 + # It's a stack trace record.
1.86 + print(line, end='', file=fout)
1.87 +
1.88 + # Filter the stack trace -- print a single line if we see one
1.89 + # or more frames involving DMD.cpp.
1.90 + seen_DMD_frame = False
1.91 + for frame in fin:
1.92 + if re.match(r" ", frame):
1.93 + m = test_frame_re.match(frame)
1.94 + if m:
1.95 + seen_DMD_frame = True
1.96 + else:
1.97 + # We're past the stack trace.
1.98 + if seen_DMD_frame:
1.99 + print(" ... DMD.cpp", file=fout)
1.100 + print(frame, end='', file=fout)
1.101 + break
1.102 +
1.103 + elif re.search("in stack frame record", line):
1.104 + # Stack frame record. Get the whole thing (we know how many
1.105 + # lines it has).
1.106 + line2 = fin.next()
1.107 + line3 = fin.next()
1.108 + line4 = fin.next()
1.109 + line5 = fin.next()
1.110 + line6 = fin.next()
1.111 +
1.112 + else:
1.113 + # A line that needs no special handling. Copy it through.
1.114 + print(line, end='', file=fout)
1.115 +
1.116 + # Compare with expected output
1.117 +
1.118 + print("diffing output to", diff_name)
1.119 +
1.120 + ret = subprocess.call(["diff", "-u", expected_name, filtered_name],
1.121 + stdout=open(diff_name, "w"))
1.122 +
1.123 + if ret == 0:
1.124 + print("test PASSED")
1.125 + else:
1.126 + print("test FAILED (did you remember to run this script and Firefox "
1.127 + "in the same directory?)")
1.128 +
1.129 +
1.130 +if __name__ == "__main__":
1.131 + main()
