psalm/tests/TypeParseTest.php

<?php
namespace Psalm\Tests;

use Psalm\Type;

class TypeParseTest extends TestCase
{
    /**
     * @return void
     */
    public function testIntOrString()
    {
        $this->assertSame('int|string', (string) Type::parseString('int|string'));
    }

    /**
     * @return void
     */
    public function testNullable()
    {
        $this->assertSame('null|string', (string) Type::parseString('?string'));
    }

    /**
     * @return void
     */
    public function testArray()
    {
        $this->assertSame('array<int, int>', (string) Type::parseString('array<int, int>'));
        $this->assertSame('array<int, string>', (string) Type::parseString('array<int, string>'));
        $this->assertSame('array<int, static>', (string) Type::parseString('array<int, static>'));
        $this->assertSame('array<int|string, string>', (string) Type::parseString('array<int|string, string>'));
    }

    /**
     * @return void
     */
    public function testGeneric()
    {
        $this->assertSame('B<int>', (string) Type::parseString('B<int>'));
    }

    /**
     * @return void
     */
    public function testPhpDocStyle()
    {
        $this->assertSame('array<mixed, A>', (string) Type::parseString('A[]'));
        $this->assertSame('array<mixed, A|B>', (string) Type::parseString('(A|B)[]'));
        $this->assertSame('array<mixed, array<mixed, A>>', (string) Type::parseString('A[][]'));
        $this->assertSame('array<mixed, array<mixed, A|B>>', (string) Type::parseString('(A|B)[][]'));
        $this->assertSame('array<mixed, A|B>', (string) Type::parseString('A[]|B[]'));
        $this->assertSame('array<mixed, A|B>|C', (string) Type::parseString('A[]|B[]|C'));
    }

    /**
     * @expectedException \Psalm\Exception\TypeParseTreeException
     *
     * @return void
     */
    public function testInvalidType()
    {
        Type::parseString('array(A)');
    }

    /**
     * @return void
     */
    public function testObjectLike()
    {
        $this->assertSame('array{a:int, b:string}', (string) Type::parseString('array{a:int, b:string}'));
        $this->assertSame(
            'array{a:int|string, b:string}',
            (string) Type::parseString('array{a:int|string, b:string}')
        );

        $this->assertSame(
            'array{a:array<int, string|int>, b:string}',
            (string) Type::parseString('array{a:array<int, string|int>, b:string}')
        );
    }
}