#!/usr/bin/perl -w

# 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.

# Features to add:
#   - Command line option to run a single test.
#   - Command line option to run all tests in a suite.

use strict;
use warnings;

use File::Basename;
use FindBin;
use Getopt::Long qw(:config pass_through);
use IPC::Open3;
use lib $FindBin::Bin;
use webkitdirs;
use Term::ANSIColor qw(:constants);

sub dumpAllTests();
sub runAllTests();
sub runAllTestsInSuite($);
sub runTest($$);
sub populateTests();
sub buildTestTool();

my $showHelp = 0;
my $quiet = 0;
my $dump = 0;

my $programName = basename($0);
my $usage = <<EOF;
Usage: $programName [options]
  --help                Show this help message
  -q|--quite            Less verbose output
  -d|--dump-tests       Dump the names of testcases without running them
EOF

GetOptions(
    'help' => \$showHelp,
    'quiet|q' => \$quiet,
    'dump|d' => \$dump,
);

if ($showHelp) {
   print STDERR $usage;
   exit 1;
}

setConfiguration();
buildTestTool();
setPathForRunningWebKitApp(\%ENV);
my %testsToRun = populateTests();

if ($dump) {
    dumpAllTests();
    exit 0;
}

runAllTests();

sub dumpAllTests()
{
    print "Dumping test cases\n";
    print "------------------\n";
    for my $suite (keys %testsToRun) {
        print $suite . ":\n";
        print map { "    " . $_ . "\n" } @{ $testsToRun{$suite} };
    }
    print "------------------\n";
}

sub runAllTests()
{
    my $anyFailures = 0;
    for my $suite (keys %testsToRun) {
        my $failed = runAllTestsInSuite($suite);
        if ($failed) {
            $anyFailures = 1;
        }
    }
    return $anyFailures;
}

sub runAllTestsInSuite($)
{
    my ($suite) = @_;
    print "Suite: $suite\n";

    my $anyFailures = 0;
    for my $test (@{$testsToRun{$suite}}) {
        my $failed = runTest($suite, $test);
        if ($failed) {
            $anyFailures = 1;
        }
    }
    
    return $anyFailures;
}

sub runTest($$)
{
    my ($suite, $testName) = @_;
    my $test = $suite . "/" . $testName;

    print "    Test: $testName -> ";

    my $result = 0;
    if (isAppleMacWebKit()) {
        my $productDir = productDir();
        $ENV{DYLD_FRAMEWORK_PATH} = $productDir;
        $ENV{WEBKIT_UNSET_DYLD_FRAMEWORK_PATH} = "YES";
        my $apiTesterPath = "$productDir/TestWebKitAPI";
        if (architecture()) {
            $result = system "arch", "-" . architecture(), $apiTesterPath, $test, @ARGV;
        } else {
            $result = system $apiTesterPath, $test, @ARGV;
        }
    } elsif (isAppleWinWebKit()) {
        my $apiTesterNameSuffix;
        if (configurationForVisualStudio() ne "Debug_All") {
            $apiTesterNameSuffix = "";
        } else {
            $apiTesterNameSuffix = "_debug";
        }
        my $apiTesterPath = File::Spec->catfile(productDir(), "TestWebKitAPI$apiTesterNameSuffix.exe");
        $result = system $apiTesterPath, $test, @ARGV;
    } else {
        die "run-api-tests is not supported on this platform.\n"
    }
    
    if ($result == 0) {
        print BOLD GREEN, "Passed", RESET, "\n";
    } else {
        print BOLD RED, "Failed", RESET, "\n";
    }
}


sub populateTests()
{
    my @tests;

    if (isAppleMacWebKit()) {
        my $productDir = productDir();
        $ENV{DYLD_FRAMEWORK_PATH} = $productDir;
        $ENV{WEBKIT_UNSET_DYLD_FRAMEWORK_PATH} = "YES";
        my $apiTesterPath = "$productDir/TestWebKitAPI";

        my ($pid, $childIn, $childOut);
        if (architecture()) {
            $pid = open3($childIn, $childOut, ">&STDERR", "arch", "-" . architecture(), $apiTesterPath, "--dump-tests") or die "Failed to build list of tests!";
        } else {
            $pid = open3($childIn, $childOut, ">&STDERR", $apiTesterPath, "--dump-tests") or die "Failed to build list of tests!";
        }
        close($childIn);
        @tests = <$childOut>;
        close($childOut);

        waitpid($pid, 0);
        my $result = $?;

        if ($result) {
            print STDERR "Failed to build list of tests!\n";
            exit exitStatus($result);
        }
    } elsif (isAppleWinWebKit()) {
        my $apiTesterNameSuffix;
        if (configurationForVisualStudio() ne "Debug_All") {
            $apiTesterNameSuffix = "";
        } else {
            $apiTesterNameSuffix = "_debug";
        }
        my $apiTesterPath = File::Spec->catfile(productDir(), "TestWebKitAPI$apiTesterNameSuffix.exe");
        open(TESTS, "-|", $apiTesterPath, "--dump-tests") or die $!;
        @tests = <TESTS>;
        close(TESTS) or die $!;
    } else {
        die "run-api-tests is not supported on this platform.\n"
    }

    my %keyedTests = ();
    for my $test (@tests) {
        $test =~ s/[\r\n]*$//;
        my ($suite, $testName) = split(/\//, $test);
        push @{$keyedTests{$suite}}, $testName;
    }
    
    return %keyedTests;
}

sub buildTestTool()
{
    chdirWebKit();

    my $buildTestTool = "build-api-tests";
    print STDERR "Running $buildTestTool\n";

    local *DEVNULL;
    my ($childIn, $childOut, $childErr);
    if ($quiet) {
        open(DEVNULL, ">", File::Spec->devnull()) or die "Failed to open /dev/null";
        $childOut = ">&DEVNULL";
        $childErr = ">&DEVNULL";
    } else {
        # When not quiet, let the child use our stdout/stderr.
        $childOut = ">&STDOUT";
        $childErr = ">&STDERR";
    }

    my @args = argumentsForConfiguration();
    my $buildProcess = open3($childIn, $childOut, $childErr, "Tools/Scripts/$buildTestTool", @args) or die "Failed to run " . $buildTestTool;
    close($childIn);
    waitpid $buildProcess, 0;
    my $buildResult = $?;
    close($childOut);
    close($childErr);

    close DEVNULL if ($quiet);

    if ($buildResult) {
        print STDERR "Compiling TestWebKitAPI failed!\n";
        exit exitStatus($buildResult);
    }
}