<?php
class HTMLPurifier_PercentEncoderTest extends HTMLPurifier_Harness {
	protected $PercentEncoder;
	protected $func;
	public function setUp() {
		$this->PercentEncoder = new HTMLPurifier_PercentEncoder ();
		$this->func = '';
	}
	public function assertDecode($string, $expect = true) {
		if ($expect === true)
			$expect = $string;
		$this->assertIdentical ( $this->PercentEncoder->{$this->func} ( $string ), $expect );
	}
	public function test_normalize() {
		$this->func = 'normalize';
		
		$this->assertDecode ( 'Aw.../-$^8' ); // no change
		$this->assertDecode ( '%41%77%7E%2D%2E%5F', 'Aw~-._' ); // decode unreserved chars
		$this->assertDecode ( '%3A%2F%3F%23%5B%5D%40%21%24%26%27%28%29%2A%2B%2C%3B%3D' ); // preserve reserved chars
		$this->assertDecode ( '%2b', '%2B' ); // normalize to uppercase
		$this->assertDecode ( '%2B2B%3A3A' ); // extra text
		$this->assertDecode ( '%2b2B%4141', '%2B2BA41' ); // extra text, with normalization
		$this->assertDecode ( '%', '%25' ); // normalize stray percent sign
		$this->assertDecode ( '%5%25', '%255%25' ); // permaturely terminated encoding
		$this->assertDecode ( '%GJ', '%25GJ' ); // invalid hexadecimal chars
		                                     
		// contested behavior, if this changes, we'll also have to have
		                                     // outbound encoding
		$this->assertDecode ( '%FC' ); // not reserved or unreserved, preserve
	}
	public function assertEncode($string, $expect = true, $preserve = false) {
		if ($expect === true)
			$expect = $string;
		$encoder = new HTMLPurifier_PercentEncoder ( $preserve );
		$result = $encoder->encode ( $string );
		$this->assertIdentical ( $result, $expect );
	}
	public function test_encode_noChange() {
		$this->assertEncode ( 'abc012-_~.' );
	}
	public function test_encode_encode() {
		$this->assertEncode ( '>', '%3E' );
	}
	public function test_encode_preserve() {
		$this->assertEncode ( '<>', '<%3E', '<' );
	}
	public function test_encode_low() {
		$this->assertEncode ( "\1", '%01' );
	}
}

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