CommandTest.php

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<?php
 
use MediaWiki\Shell\Command;
use Wikimedia\TestingAccessWrapper;
 
class CommandTest extends PHPUnit_Framework_TestCase {
    private function requirePosix() {
        if ( wfIsWindows() ) {
            $this->markTestSkipped( 'This test requires a POSIX environment.' );
        }
    }
 
    public function testExecute( $commandInput, $expectedExitCode, $expectedOutput ) {
        $this->requirePosix();
 
        $command = new Command();
        $result = $command
            ->params( $commandInput )
            ->execute();
 
        $this->assertSame( $expectedExitCode, $result->getExitCode() );
        $this->assertSame( $expectedOutput, $result->getStdout() );
    }
 
    public function provideExecute() {
        return [
            'success status' => [ 'true', 0, '' ],
            'failure status' => [ 'false', 1, '' ],
            'output' => [ [ 'echo', '-n', 'x', '>', 'y' ], 0, 'x > y' ],
        ];
    }
 
    public function testEnvironment() {
        $this->requirePosix();
 
        $command = new Command();
        $result = $command
            ->params( [ 'printenv', 'FOO' ] )
            ->environment( [ 'FOO' => 'bar' ] )
            ->execute();
        $this->assertSame( "bar\n", $result->getStdout() );
    }
 
    public function testOutput() {
        global $IP;
 
        $this->requirePosix();
 
        $command = new Command();
        $result = $command
            ->params( [ 'ls', "$IP/index.php" ] )
            ->execute();
        $this->assertSame( "$IP/index.php", trim( $result->getStdout() ) );
 
        $command = new Command();
        $result = $command
            ->params( [ 'ls', 'index.php', 'no-such-file' ] )
            ->includeStderr()
            ->execute();
        $this->assertRegExp( '/^.+no-such-file.*$/m', $result->getStdout() );
    }
 
    public function testNullsAreSkipped() {
        $command = TestingAccessWrapper::newFromObject( new Command );
        $command->params( 'echo', 'a', null, 'b' );
        $command->unsafeParams( 'c', null, 'd' );
        $this->assertEquals( "'echo' 'a' 'b' c d", $command->command );
    }
 
    public function testT69870() {
        $commandLine = wfIsWindows()
            // 333 = 331 + CRLF
            ? ( 'for /l %i in (1, 1, 1001) do @echo ' . str_repeat( '*', 331 ) )
            : 'printf "%-333333s" "*"';
 
        // Test several times because it involves a race condition that may randomly succeed or fail
        for ( $i = 0; $i < 10; $i++ ) {
            $command = new Command();
            $output = $command->unsafeParams( $commandLine )
                ->execute()
                ->getStdout();
            $this->assertEquals( 333333, strlen( $output ) );
        }
    }
}