#!/usr/bin/perl -w

#

# Copyright (C) 2010 Chris Jerdonek (chris.jerdonek@gmail.com)

#

# Redistribution and use in source and binary forms, with or without

# modification, are permitted provided that the following conditions are

# met:

#

#     * Redistributions of source code must retain the above copyright

# notice, this list of conditions and the following disclaimer.

#     * 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.

#     * Neither the name of Apple Computer, Inc. ("Apple") nor the names of

# its contributors may be used to endorse or promote products derived

# from this software without specific prior written permission.

#

# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

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# 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 parseDiffHeader().

use strict;

use warnings;

use Test::More;

use VCSUtils;

# The unit tests for parseGitDiffHeader() and parseSvnDiffHeader()

# already thoroughly test parsing each format.

#

# For parseDiffHeader(), it should suffice to verify that -- (1) for each

# format, the method can return non-trivial values back for each key

# supported by that format (e.g. "sourceRevision" for SVN), (2) the method

# correctly sets default values when specific key-values are not set

# (e.g. undef for "sourceRevision" for Git), and (3) key-values unique to

# this method are set correctly (e.g. "scmFormat").

my @testCaseHashRefs = (

####

#    SVN test cases

##

{   # New test

    diffName => "SVN: non-trivial copiedFromPath and sourceRevision values",

    inputText => <<'END',

Index: index_path.py

===================================================================

--- index_path.py	(revision 53048)	(from copied_from_path.py:53048)

+++ index_path.py	(working copy)

@@ -0,0 +1,7 @@

+# Python file...

END

    expectedReturn => [

{

    svnConvertedText => <<'END',

Index: index_path.py

===================================================================

--- index_path.py	(revision 53048)	(from copied_from_path.py:53048)

+++ index_path.py	(working copy)

END

    copiedFromPath => "copied_from_path.py",

    indexPath => "index_path.py",

    isSvn => 1,

    sourceRevision => 53048,

},

"@@ -0,0 +1,7 @@\n"],

    expectedNextLine => "+# Python file...\n",

},

####

#    Git test cases

##

{   # New test case

    diffName => "Git: Non-zero executable bit",

    inputText => <<'END',

diff --git a/foo.exe b/foo.exe

old mode 100644

new mode 100755

END

    expectedReturn => [

{

    svnConvertedText => <<'END',

Index: foo.exe

old mode 100644

new mode 100755

END

    executableBitDelta => 1,

    indexPath => "foo.exe",

    isGit => 1,

},

undef],

    expectedNextLine => undef,

},

);

my $testCasesCount = @testCaseHashRefs;

plan(tests => 2 * $testCasesCount); # Total number of assertions.

foreach my $testCase (@testCaseHashRefs) {

    my $testNameStart = "parseDiffHeader(): $testCase->{diffName}: comparing";

    my $fileHandle;

    open($fileHandle, "<", \$testCase->{inputText});

    my $line = <$fileHandle>;

    my @got = VCSUtils::parseDiffHeader($fileHandle, $line);

    my $expectedReturn = $testCase->{expectedReturn};

    is_deeply(\@got, $expectedReturn, "$testNameStart return value.");

    my $gotNextLine = <$fileHandle>;

    is($gotNextLine, $testCase->{expectedNextLine},  "$testNameStart next read line.");

}