<?php
/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

namespace Apache\Avro\Tests;

use Apache\Avro\AvroDebug;
use Apache\Avro\AvroIO;
use Apache\Avro\DataFile\AvroDataIOReader;
use Apache\Avro\DataFile\AvroDataIOWriter;
use Apache\Avro\Datum\AvroIODatumReader;
use Apache\Avro\Datum\AvroIODatumWriter;
use Apache\Avro\IO\AvroStringIO;
use Apache\Avro\Schema\AvroSchema;
use PHPUnit\Framework\TestCase;

class StringIOTest extends TestCase
{
    public function test_write()
    {
        $strio = new AvroStringIO();
        $this->assertEquals(0, $strio->tell());
        $str = 'foo';
        $strlen = strlen($str);
        $this->assertEquals($strlen, $strio->write($str));
        $this->assertEquals($strlen, $strio->tell());
    }

    public function test_seek()
    {
        $strio = new AvroStringIO('abcdefghijklmnopqrstuvwxyz');
        $strio->seek(4, AvroIO::SEEK_SET);
        $this->assertEquals('efgh', $strio->read(4));
        $strio->seek(4, AvroIO::SEEK_CUR);
        $this->assertEquals('mnop', $strio->read(4));
        $strio->seek(-4, AvroIO::SEEK_END);
        $this->assertEquals('wxyz', $strio->read(4));
    }

    public function test_tell()
    {
        $strio = new AvroStringIO('foobar');
        $this->assertEquals(0, $strio->tell());
        $strlen = 3;
        $strio->read($strlen);
        $this->assertEquals($strlen, $strio->tell());
    }

    public function test_read()
    {
        $str = 'foobar';
        $strio = new AvroStringIO($str);
        $strlen = 3;
        $this->assertEquals(substr($str, 0, $strlen), $strio->read($strlen));
    }

    public function test_string_rep()
    {
        $writers_schema_json = '"null"';
        $writers_schema = AvroSchema::parse($writers_schema_json);
        $datum_writer = new AvroIODatumWriter($writers_schema);
        $strio = new AvroStringIO();
        $this->assertEquals('', $strio->string());
        $dw = new AvroDataIOWriter($strio, $datum_writer, $writers_schema_json);
        $dw->close();

        $this->assertEquals(57, strlen($strio->string()),
            AvroDebug::asciiString($strio->string()));

        $read_strio = new AvroStringIO($strio->string());

        $datum_reader = new AvroIODatumReader();
        $dr = new AvroDataIOReader($read_strio, $datum_reader);
        $read_data = $dr->data();
        $datum_count = count($read_data);
        $this->assertEquals(0, $datum_count);
    }
}