ConvertibleTimestampTest.php

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<?php

class ConvertibleTimestampTest extends PHPUnit_Framework_TestCase {
    public function testConstructWithNoTimestamp() {
        $timestamp = new ConvertibleTimestamp();
        $this->assertInternalType( 'string', $timestamp->getTimestamp() );
        $this->assertNotEmpty( $timestamp->getTimestamp() );
        $this->assertNotEquals( false, strtotime( $timestamp->getTimestamp( TS_MW ) ) );
    }

    public function testToString() {
        $timestamp = new ConvertibleTimestamp( '1406833268' ); // Equivalent to 20140731190108
        $this->assertEquals( '1406833268', $timestamp->__toString() );
    }

    public static function provideValidTimestampDifferences() {
        return [
            [ '1406833268', '1406833269', '00 00 00 01' ],
            [ '1406833268', '1406833329', '00 00 01 01' ],
            [ '1406833268', '1406836929', '00 01 01 01' ],
            [ '1406833268', '1406923329', '01 01 01 01' ],
        ];
    }

    public function testDiff( $timestamp1, $timestamp2, $expected ) {
        $timestamp1 = new ConvertibleTimestamp( $timestamp1 );
        $timestamp2 = new ConvertibleTimestamp( $timestamp2 );
        $diff = $timestamp1->diff( $timestamp2 );
        $this->assertEquals( $expected, $diff->format( '%D %H %I %S' ) );
    }

    public function testValidParse( $format, $original, $expected ) {
        $timestamp = new ConvertibleTimestamp( $original );
        $this->assertEquals( $expected, $timestamp->getTimestamp( TS_MW ) );
    }

    public function testValidOutput( $format, $expected, $original ) {
        $timestamp = new ConvertibleTimestamp( $original );
        $this->assertEquals( $expected, (string)$timestamp->getTimestamp( $format ) );
    }

    public function testInvalidParse() {
        new ConvertibleTimestamp( "This is not a timestamp." );
    }

    public function testConvert( $format, $expected, $original ) {
        $this->assertSame( $expected, ConvertibleTimestamp::convert( $format, $original ) );
    }

    public function testConvertInvalid() {
        $this->assertSame( false, ConvertibleTimestamp::convert( 'Not a timestamp', 0 ) );
    }

    public function testOutOfRangeTimestamps( $format, $input ) {
        $timestamp = new ConvertibleTimestamp( $input );
        $timestamp->getTimestamp( $format );
    }

    public function testInvalidOutput() {
        $timestamp = new ConvertibleTimestamp( '1343761268' );
        $timestamp->getTimestamp( 98 );
    }

    public static function provideValidTimestamps() {
        return [
            // Various formats
            [ TS_UNIX, '1343761268', '20120731190108' ],
            [ TS_MW, '20120731190108', '20120731190108' ],
            [ TS_DB, '2012-07-31 19:01:08', '20120731190108' ],
            [ TS_ISO_8601, '2012-07-31T19:01:08Z', '20120731190108' ],
            [ TS_ISO_8601_BASIC, '20120731T190108Z', '20120731190108' ],
            [ TS_EXIF, '2012:07:31 19:01:08', '20120731190108' ],
            [ TS_RFC2822, 'Tue, 31 Jul 2012 19:01:08 GMT', '20120731190108' ],
            [ TS_ORACLE, '31-07-2012 19:01:08.000000', '20120731190108' ],
            [ TS_POSTGRES, '2012-07-31 19:01:08 GMT', '20120731190108' ],
            // Some extremes and weird values
            [ TS_ISO_8601, '9999-12-31T23:59:59Z', '99991231235959' ],
            [ TS_UNIX, '-62135596801', '00001231235959' ]
        ];
    }

    public static function provideOutOfRangeTimestamps() {
        return [
            // Various formats
            [ TS_MW, '-62167219201' ], // -0001-12-31T23:59:59Z
            [ TS_MW, '253402300800' ], // 10000-01-01T00:00:00Z
        ];
    }
}