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diff --git a/Tools/Scripts/webkitperl/VCSUtils_unittest/mergeChangeLogs.pl b/Tools/Scripts/webkitperl/VCSUtils_unittest/mergeChangeLogs.pl
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+++ b/Tools/Scripts/webkitperl/VCSUtils_unittest/mergeChangeLogs.pl
@@ -0,0 +1,336 @@
+#!/usr/bin/perl
+#
+# Copyright (C) 2010 Apple Inc. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
+# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+# DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+# ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+# Unit tests of VCSUtils::mergeChangeLogs().
+
+use strict;
+
+use Test::Simple tests => 16;
+use File::Temp qw(tempfile);
+use VCSUtils;
+
+# Read contents of a file and return it.
+sub readFile($)
+{
+ my ($fileName) = @_;
+
+ local $/;
+ open(FH, "<", $fileName);
+ my $content = <FH>;
+ close(FH);
+
+ return $content;
+}
+
+# Write a temporary file and return the filename.
+sub writeTempFile($$$)
+{
+ my ($name, $extension, $content) = @_;
+
+ my ($FH, $fileName) = tempfile(
+ $name . "-XXXXXXXX",
+ DIR => ($ENV{'TMPDIR'} || "/tmp"),
+ UNLINK => 0,
+ );
+ print $FH $content;
+ close $FH;
+
+ if ($extension) {
+ my $newFileName = $fileName . $extension;
+ rename($fileName, $newFileName);
+ $fileName = $newFileName;
+ }
+
+ return $fileName;
+}
+
+# --------------------------------------------------------------------------------
+
+{
+ # New test
+ my $title = "mergeChangeLogs: traditional rejected patch success";
+
+ my $fileNewerContent = <<'EOF';
+2010-01-29 Mark Rowe <mrowe@apple.com>
+
+ Fix the Mac build.
+
+ Disable ENABLE_INDEXED_DATABASE since it is "completely non-functional".
+
+2010-01-29 Simon Hausmann <simon.hausmann@nokia.com>
+
+ Rubber-stamped by Maciej Stachowiak.
+
+ Fix the ARM build.
+EOF
+ my $fileNewer = writeTempFile("file", "", $fileNewerContent);
+
+ my $fileMineContent = <<'EOF';
+***************
+*** 1,3 ****
+ 2010-01-29 Simon Hausmann <simon.hausmann@nokia.com>
+
+ Rubber-stamped by Maciej Stachowiak.
+--- 1,9 ----
++ 2010-01-29 Oliver Hunt <oliver@apple.com>
++
++ Reviewed by Darin Adler.
++
++ JSC is failing to propagate anonymous slot count on some transitions
++
+ 2010-01-29 Simon Hausmann <simon.hausmann@nokia.com>
+
+ Rubber-stamped by Maciej Stachowiak.
+EOF
+ my $fileMine = writeTempFile("file", ".rej", $fileMineContent);
+ rename($fileMine, $fileNewer . ".rej");
+ $fileMine = $fileNewer . ".rej";
+
+ my $fileOlderContent = $fileNewerContent;
+ my $fileOlder = writeTempFile("file", ".orig", $fileOlderContent);
+ rename($fileOlder, $fileNewer . ".orig");
+ $fileOlder = $fileNewer . ".orig";
+
+ my $exitStatus = mergeChangeLogs($fileMine, $fileOlder, $fileNewer);
+
+ # mergeChangeLogs() should return 1 since the patch succeeded.
+ ok($exitStatus == 1, "$title: should return 1 for success");
+
+ ok(readFile($fileMine) eq $fileMineContent, "$title: \$fileMine should be unchanged");
+ ok(readFile($fileOlder) eq $fileOlderContent, "$title: \$fileOlder should be unchanged");
+
+ my $expectedContent = <<'EOF';
+2010-01-29 Oliver Hunt <oliver@apple.com>
+
+ Reviewed by Darin Adler.
+
+ JSC is failing to propagate anonymous slot count on some transitions
+
+EOF
+ $expectedContent .= $fileNewerContent;
+ ok(readFile($fileNewer) eq $expectedContent, "$title: \$fileNewer should be updated to include patch");
+
+ unlink($fileMine, $fileOlder, $fileNewer);
+}
+
+# --------------------------------------------------------------------------------
+
+{
+ # New test
+ my $title = "mergeChangeLogs: traditional rejected patch failure";
+
+ my $fileNewerContent = <<'EOF';
+2010-01-29 Mark Rowe <mrowe@apple.com>
+
+ Fix the Mac build.
+
+ Disable ENABLE_INDEXED_DATABASE since it is "completely non-functional".
+
+2010-01-29 Simon Hausmann <simon.hausmann@nokia.com>
+
+ Rubber-stamped by Maciej Stachowiak.
+
+ Fix the ARM build.
+EOF
+ my $fileNewer = writeTempFile("file", "", $fileNewerContent);
+
+ my $fileMineContent = <<'EOF';
+***************
+*** 1,9 ****
+- 2010-01-29 Oliver Hunt <oliver@apple.com>
+-
+- Reviewed by Darin Adler.
+-
+- JSC is failing to propagate anonymous slot count on some transitions
+-
+ 2010-01-29 Simon Hausmann <simon.hausmann@nokia.com>
+
+ Rubber-stamped by Maciej Stachowiak.
+--- 1,3 ----
+ 2010-01-29 Simon Hausmann <simon.hausmann@nokia.com>
+
+ Rubber-stamped by Maciej Stachowiak.
+EOF
+ my $fileMine = writeTempFile("file", ".rej", $fileMineContent);
+ rename($fileMine, $fileNewer . ".rej");
+ $fileMine = $fileNewer . ".rej";
+
+ my $fileOlderContent = $fileNewerContent;
+ my $fileOlder = writeTempFile("file", ".orig", $fileOlderContent);
+ rename($fileOlder, $fileNewer . ".orig");
+ $fileOlder = $fileNewer . ".orig";
+
+ my $exitStatus = mergeChangeLogs($fileMine, $fileOlder, $fileNewer);
+
+ # mergeChangeLogs() should return 0 since the patch failed.
+ ok($exitStatus == 0, "$title: should return 0 for failure");
+
+ ok(readFile($fileMine) eq $fileMineContent, "$title: \$fileMine should be unchanged");
+ ok(readFile($fileOlder) eq $fileOlderContent, "$title: \$fileOlder should be unchanged");
+ ok(readFile($fileNewer) eq $fileNewerContent, "$title: \$fileNewer should be unchanged");
+
+ unlink($fileMine, $fileOlder, $fileNewer);
+}
+
+# --------------------------------------------------------------------------------
+
+{
+ # New test
+ my $title = "mergeChangeLogs: patch succeeds";
+
+ my $fileMineContent = <<'EOF';
+2010-01-29 Oliver Hunt <oliver@apple.com>
+
+ Reviewed by Darin Adler.
+
+ JSC is failing to propagate anonymous slot count on some transitions
+
+2010-01-29 Simon Hausmann <simon.hausmann@nokia.com>
+
+ Rubber-stamped by Maciej Stachowiak.
+
+ Fix the ARM build.
+EOF
+ my $fileMine = writeTempFile("fileMine", "", $fileMineContent);
+
+ my $fileOlderContent = <<'EOF';
+2010-01-29 Simon Hausmann <simon.hausmann@nokia.com>
+
+ Rubber-stamped by Maciej Stachowiak.
+
+ Fix the ARM build.
+EOF
+ my $fileOlder = writeTempFile("fileOlder", "", $fileOlderContent);
+
+ my $fileNewerContent = <<'EOF';
+2010-01-29 Mark Rowe <mrowe@apple.com>
+
+ Fix the Mac build.
+
+ Disable ENABLE_INDEXED_DATABASE since it is "completely non-functional".
+
+2010-01-29 Simon Hausmann <simon.hausmann@nokia.com>
+
+ Rubber-stamped by Maciej Stachowiak.
+
+ Fix the ARM build.
+EOF
+ my $fileNewer = writeTempFile("fileNewer", "", $fileNewerContent);
+
+ my $exitStatus = mergeChangeLogs($fileMine, $fileOlder, $fileNewer);
+
+ # mergeChangeLogs() should return 1 since the patch succeeded.
+ ok($exitStatus == 1, "$title: should return 1 for success");
+
+ ok(readFile($fileMine) eq $fileMineContent, "$title: \$fileMine should be unchanged");
+ ok(readFile($fileOlder) eq $fileOlderContent, "$title: \$fileOlder should be unchanged");
+
+ my $expectedContent = <<'EOF';
+2010-01-29 Oliver Hunt <oliver@apple.com>
+
+ Reviewed by Darin Adler.
+
+ JSC is failing to propagate anonymous slot count on some transitions
+
+EOF
+ $expectedContent .= $fileNewerContent;
+
+ ok(readFile($fileNewer) eq $expectedContent, "$title: \$fileNewer should be patched");
+
+ unlink($fileMine, $fileOlder, $fileNewer);
+}
+
+# --------------------------------------------------------------------------------
+
+{
+ # New test
+ my $title = "mergeChangeLogs: patch fails";
+
+ my $fileMineContent = <<'EOF';
+2010-01-29 Mark Rowe <mrowe@apple.com>
+
+ Fix the Mac build.
+
+ Disable ENABLE_INDEXED_DATABASE since it is "completely non-functional".
+
+2010-01-29 Simon Hausmann <simon.hausmann@nokia.com>
+
+ Rubber-stamped by Maciej Stachowiak.
+
+ Fix the ARM build.
+EOF
+ my $fileMine = writeTempFile("fileMine", "", $fileMineContent);
+
+ my $fileOlderContent = <<'EOF';
+2010-01-29 Mark Rowe <mrowe@apple.com>
+
+ Fix the Mac build.
+
+ Disable ENABLE_INDEXED_DATABASE since it is "completely non-functional".
+
+2010-01-29 Oliver Hunt <oliver@apple.com>
+
+ Reviewed by Darin Adler.
+
+ JSC is failing to propagate anonymous slot count on some transitions
+
+2010-01-29 Simon Hausmann <simon.hausmann@nokia.com>
+
+ Rubber-stamped by Maciej Stachowiak.
+
+ Fix the ARM build.
+EOF
+ my $fileOlder = writeTempFile("fileOlder", "", $fileOlderContent);
+
+ my $fileNewerContent = <<'EOF';
+2010-01-29 Oliver Hunt <oliver@apple.com>
+
+ Reviewed by Darin Adler.
+
+ JSC is failing to propagate anonymous slot count on some transitions
+
+2010-01-29 Simon Hausmann <simon.hausmann@nokia.com>
+
+ Rubber-stamped by Maciej Stachowiak.
+
+ Fix the ARM build.
+EOF
+ my $fileNewer = writeTempFile("fileNewer", "", $fileNewerContent);
+
+ my $exitStatus = mergeChangeLogs($fileMine, $fileOlder, $fileNewer);
+
+ # mergeChangeLogs() should return a non-zero exit status since the patch failed.
+ ok($exitStatus == 0, "$title: return non-zero exit status for failure");
+
+ ok(readFile($fileMine) eq $fileMineContent, "$title: \$fileMine should be unchanged");
+ ok(readFile($fileOlder) eq $fileOlderContent, "$title: \$fileOlder should be unchanged");
+
+ # $fileNewer should still exist unchanged because the patch failed
+ ok(readFile($fileNewer) eq $fileNewerContent, "$title: \$fileNewer should be unchanged");
+
+ unlink($fileMine, $fileOlder, $fileNewer);
+}
+
+# --------------------------------------------------------------------------------
+
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