#!/usr/bin/env perl
#
# Copyright (C) 2014 Apple Inc. All rights reserved.
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# Unit tests of webkitdirs::checkForArgumentAndRemoveFromArrayRefGettingValue
use strict;
use warnings;

use Test::More;
use webkitdirs;

my @testCases = (
{
    description => "empty string in empty array",
    argToCheck => "",
    args => [],
    expectedArgs => [],
    expectedReturn => undef,
},
{
    description => "non-existent option in empty array",
    argToCheck => "--sdk",
    args => [],
    expectedArgs => [],
    expectedReturn => undef,
},
{
    description => "non-existent option in non-empty array",
    argToCheck => "--sdk",
    args => ["--clean", "--debug"],
    expectedArgs => ["--clean", "--debug"],
    expectedReturn => undef,
},
{
    description => "option with specified value",
    argToCheck => "--sdk",
    args => ["--clean", "--debug", "--sdk", "iphonesimulator"],
    expectedArgs => ["--clean", "--debug"],
    expectedReturn => "iphonesimulator",
},
{
    description => "option with specified value whose value follows an equal sign",
    argToCheck => "--sdk",
    args => ["--clean", "--debug", "--sdk=iphonesimulator"],
    expectedArgs => ["--clean", "--debug"],
    expectedReturn => "iphonesimulator",
},
{
    description => "option whose value is the empty string and follows an equal sign", # Unrecognized argument; no change 
    argToCheck => "--sdk",
    args => ["--clean", "--debug", "--sdk="],
    expectedArgs => ["--clean", "--debug", "--sdk="],
    expectedReturn => undef,
},
{
    description => "multiple options of the same name",
    argToCheck => "--sdk",
    args => ["--clean", "--debug", "--sdk=iphonesimulator", "--sdk=macosx"],
    expectedArgs => ["--clean", "--debug", "--sdk=macosx"],
    expectedReturn => "iphonesimulator",
},
####
# Malformed input
##
# We shouldn't encounter such input in practice.
{
    description => "malformed: option with unspecified value at the end of the array",
    argToCheck => "--sdk",
    args => ["--clean", "--debug", "--sdk"],
    expectedArgs => ["--clean", "--debug"],
    expectedReturn => undef,
},
{
    description => "malformed: option with unspecified value",
    argToCheck => "--sdk",
    args => ["--clean", "--debug", "--sdk", "--no-webkit2"],
    expectedArgs => ["--clean", "--debug"],
    expectedReturn => "--no-webkit2",
},
{
    description => "malformed: multiple options of the same name; first occurrence has unspecified value",
    argToCheck => "--sdk",
    args => ["--clean", "--debug", "--sdk", "--sdk=iphonesimulator", "--sdk=macosx"],
    expectedArgs => ["--clean", "--debug", "--sdk=macosx"],
    expectedReturn => "--sdk=iphonesimulator",
},
);

plan(tests => 3 * @testCases);

foreach my $testCase (@testCases) {
    my $testNameStart = "checkForArgumentAndRemoveFromArrayRef(): $testCase->{description}: comparing";
    my $actualValue;
    my @shadowArgs = @{$testCase->{args}}; # Copy the arguments since checkForArgumentAndRemoveFromArrayRefGettingValue() mutates the specified array. 
    is(checkForArgumentAndRemoveFromArrayRefGettingValue($testCase->{argToCheck}, \$actualValue, \@shadowArgs), $testCase->{expectedReturn}, "$testNameStart return value");
    is($actualValue, $testCase->{expectedReturn}, "$testNameStart out parameter");
    is_deeply(\@shadowArgs, $testCase->{expectedArgs}, "$testNameStart array");
}