class HtmlEscapedTextTest

class HtmlEscapedTextTest extends TestCase {
    
    /**
     * @covers ::__toString
     * @covers ::jsonSerialize
     *
     * @dataProvider providerToString
     */
    public function testToString($text, $expected, $message) {
        $escapable_string = new HtmlEscapedText($text);
        $this->assertEquals($expected, (string) $escapable_string, $message);
        $this->assertEquals($expected, $escapable_string->jsonSerialize());
    }
    
    /**
     * Data provider for testToString().
     *
     * @see testToString()
     */
    public function providerToString() {
        // Checks that invalid multi-byte sequences are escaped.
        $tests[] = [
            "Foo\xc0bar",
            'Foo�bar',
            'Escapes invalid sequence "Foo\\xC0bar"',
        ];
        $tests[] = [
            "\xc2\"",
            '�"',
            'Escapes invalid sequence "\\xc2\\""',
        ];
        $tests[] = [
            "Foo ÿñ",
            "Foo ÿñ",
            'Does not escape valid sequence "Foo ÿñ"',
        ];
        // Checks that special characters are escaped.
        $script_tag = $this->prophesize(MarkupInterface::class);
        $script_tag->__toString()
            ->willReturn('<script>');
        $script_tag = $script_tag->reveal();
        $tests[] = [
            $script_tag,
            '&lt;script&gt;',
            'Escapes &lt;script&gt; even inside an object that implements MarkupInterface.',
        ];
        $tests[] = [
            "<script>",
            '&lt;script&gt;',
            'Escapes &lt;script&gt;',
        ];
        $tests[] = [
            '<>&"\'',
            '&lt;&gt;&amp;&quot;&#039;',
            'Escapes reserved HTML characters.',
        ];
        $specialchars = $this->prophesize(MarkupInterface::class);
        $specialchars->__toString()
            ->willReturn('<>&"\'');
        $specialchars = $specialchars->reveal();
        $tests[] = [
            $specialchars,
            '&lt;&gt;&amp;&quot;&#039;',
            'Escapes reserved HTML characters even inside an object that implements MarkupInterface.',
        ];
        return $tests;
    }
    
    /**
     * @covers ::count
     */
    public function testCount() {
        $string = 'Can I please have a <em>kitten</em>';
        $escapable_string = new HtmlEscapedText($string);
        $this->assertEquals(strlen($string), $escapable_string->count());
    }

}