<?php

/**
 * Test the output of post template tags, etc.
 *
 * @group post
 * @group formatting
 */
class Tests_Post_Output extends WP_UnitTestCase {

	function setUp() {
		parent::setUp();
		add_shortcode( 'dumptag', array( $this, '_shortcode_dumptag' ) );
		add_shortcode( 'paragraph', array( $this, '_shortcode_paragraph' ) );
	}

	function tearDown() {
		global $shortcode_tags;
		unset( $shortcode_tags['dumptag'], $shortcode_tags['paragraph'] );
		parent::tearDown();
	}

	function _shortcode_dumptag( $atts ) {
		$out = '';
		foreach ( $atts as $k => $v ) {
			$out .= "$k = $v\n";
		}
		return $out;
	}

	function _shortcode_paragraph( $atts, $content ) {
		$processed_atts = shortcode_atts(
			array(
				'class' => 'graf',
			),
			$atts
		);

		return "<p class='{$processed_atts['class']}'>$content</p>\n";
	}

	function test_the_content() {
		$post_content = <<<EOF
<i>This is the excerpt.</i>
<!--more-->
This is the <b>body</b>.
EOF;

		$post_id = self::factory()->post->create( compact( 'post_content' ) );

		$expected = <<<EOF
<p><i>This is the excerpt.</i><br />
<span id="more-{$post_id}"></span><br />
This is the <b>body</b>.</p>
EOF;

		$this->go_to( get_permalink( $post_id ) );
		$this->assertTrue( is_single() );
		$this->assertTrue( have_posts() );
		$this->assertNull( the_post() );

		$this->assertEquals( strip_ws( $expected ), strip_ws( get_echo( 'the_content' ) ) );
	}

	function test_the_content_shortcode() {
		$post_content = <<<EOF
[dumptag foo="bar" baz="123"]

[dumptag foo=123 baz=bar]

[dumptag http://example.com]

EOF;

		$expected = <<<EOF
foo = bar
baz = 123
foo = 123
baz = bar
0 = http://example.com

EOF;

		$post_id = self::factory()->post->create( compact( 'post_content' ) );
		$this->go_to( get_permalink( $post_id ) );
		$this->assertTrue( is_single() );
		$this->assertTrue( have_posts() );
		$this->assertNull( the_post() );

		$this->assertEquals( strip_ws( $expected ), strip_ws( get_echo( 'the_content' ) ) );
	}

	function test_the_content_shortcode_paragraph() {
		$post_content = <<<EOF
Graf by itself:

[paragraph]my graf[/paragraph]

  [paragraph foo="bar"]another graf with whitespace[/paragraph]

An [paragraph]inline graf[/paragraph], this doesn't make much sense.

A graf with a single EOL first:
[paragraph]blah[/paragraph]

EOF;

		$expected = <<<EOF
<p>Graf by itself:</p>
<p class='graf'>my graf</p>

  <p class='graf'>another graf with whitespace</p>

<p>An <p class='graf'>inline graf</p>
, this doesn&#8217;t make much sense.</p>
<p>A graf with a single EOL first:<br />
<p class='graf'>blah</p>
</p>

EOF;

		$post_id = self::factory()->post->create( compact( 'post_content' ) );
		$this->go_to( get_permalink( $post_id ) );
		$this->assertTrue( is_single() );
		$this->assertTrue( have_posts() );
		$this->assertNull( the_post() );

		$this->assertEquals( strip_ws( $expected ), strip_ws( get_echo( 'the_content' ) ) );
	}

	function test_the_content_attribute_filtering() {
		kses_init_filters();

		// http://bpr3.org/?p=87
		// The title attribute should make it through unfiltered.
		$post_content = <<<EOF
<span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Mariat&rft.aufirst=Denis&rft. au=Denis+Mariat&rft.au=Sead+Taourit&rft.au=G%C3%A9rard+Gu%C3%A9rin& rft.title=Genetics+Selection+Evolution&rft.atitle=&rft.date=2003&rft. volume=35&rft.issue=1&rft.spage=119&rft.epage=133&rft.genre=article& rft.id=info:DOI/10.1051%2Fgse%3A2002039"></span>Mariat, D., Taourit, S., GuÃ©rin, G. (2003). . <span style="font-style: italic;">Genetics Selection Evolution, 35</span>(1), 119-133. DOI: <a rev="review" href= "http://dx.doi.org/10.1051/gse:2002039">10.1051/gse:2002039</a>
EOF;

		$expected = <<<EOF
<p><span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.aulast=Mariat&amp;rft.aufirst=Denis&amp;rft. au=Denis+Mariat&amp;rft.au=Sead+Taourit&amp;rft.au=G%C3%A9rard+Gu%C3%A9rin&amp; rft.title=Genetics+Selection+Evolution&amp;rft.atitle=&amp;rft.date=2003&amp;rft. volume=35&amp;rft.issue=1&amp;rft.spage=119&amp;rft.epage=133&amp;rft.genre=article&amp; rft.id=info:DOI/10.1051%2Fgse%3A2002039"></span>Mariat, D., Taourit, S., GuÃ©rin, G. (2003). . <span style="font-style: italic">Genetics Selection Evolution, 35</span>(1), 119-133. DOI: <a rev="review" href="http://dx.doi.org/10.1051/gse:2002039">10.1051/gse:2002039</a></p>
EOF;

		$post_id = self::factory()->post->create( compact( 'post_content' ) );
		$this->go_to( get_permalink( $post_id ) );
		$this->assertTrue( is_single() );
		$this->assertTrue( have_posts() );
		$this->assertNull( the_post() );

		$this->assertEquals( strip_ws( $expected ), strip_ws( get_echo( 'the_content' ) ) );

		kses_remove_filters();
	}

	function test_the_content_attribute_value_with_colon() {
		kses_init_filters();

		// http://bpr3.org/?p=87
		// The title attribute should make it through unfiltered.
		$post_content = <<<EOF
<span title="My friends: Alice, Bob and Carol">foo</span>
EOF;

		$expected = <<<EOF
<p><span title="My friends: Alice, Bob and Carol">foo</span></p>
EOF;

		$post_id = self::factory()->post->create( compact( 'post_content' ) );
		$this->go_to( get_permalink( $post_id ) );
		$this->assertTrue( is_single() );
		$this->assertTrue( have_posts() );
		$this->assertNull( the_post() );

		$this->assertEquals( strip_ws( $expected ), strip_ws( get_echo( 'the_content' ) ) );

		kses_remove_filters();
	}

	/**
	 * Ensure the_content handles a More block on a singular page.
	 *
	 * @ticket 46471
	 *
	 * @group blocks
	 */
	public function test_the_content_should_handle_more_block_on_singular() {
		$post_content = <<<EOF
<!-- wp:paragraph -->
<p>Teaser part.</p>
<!-- /wp:paragraph -->

<!-- wp:more {"customText":"Read More"} -->
<!--more Read More-->
<!-- /wp:more -->

<!-- wp:paragraph -->
<p>Second block.</p>
<!-- /wp:paragraph -->
EOF;

		$post_id = self::factory()->post->create( compact( 'post_content' ) );

		$expected_without_teaser = <<<EOF
<span id="more-{$post_id}"></span>
<p>Second block.</p>
EOF;

		$expected_with_teaser = <<<EOF
<p>Teaser part.</p>
<span id="more-{$post_id}"></span>
<p>Second block.</p>
EOF;

		$this->go_to( get_permalink( $post_id ) );
		$this->assertTrue( is_singular() );
		$this->assertTrue( have_posts() );
		$this->assertNull( the_post() );

		// Without the teaser.
		$actual = get_echo( 'the_content', array( null, true ) );
		$this->assertSame( strip_ws( $expected_without_teaser ), strip_ws( $actual ) );

		// With the teaser.
		$actual = get_echo( 'the_content', array( null, false ) );
		$this->assertSame( strip_ws( $expected_with_teaser ), strip_ws( $actual ) );
	}

	/**
	 * Ensure the_content handles a More block when using the noteaser text tag on a singular page.
	 *
	 * @ticket 46471
	 *
	 * @group blocks
	 */
	public function test_the_content_should_handle_more_block_when_noteaser_on_singular() {
		$post_content = <<<EOF
<!-- wp:paragraph -->
<p>Teaser part.</p>
<!-- /wp:paragraph -->

<!-- wp:more -->
<!--more-->
<!--noteaser-->
<!-- /wp:more -->

<!-- wp:paragraph -->
<p>Second block.</p>
<!-- /wp:paragraph -->
EOF;

		$post_id = self::factory()->post->create( compact( 'post_content' ) );

		$expected = <<<EOF
<span id="more-{$post_id}"></span>
<!--noteaser-->
<p>Second block.</p>
EOF;

		$this->go_to( get_permalink( $post_id ) );
		$this->assertTrue( is_singular() );
		$this->assertTrue( have_posts() );
		$this->assertNull( the_post() );

		$actual = get_echo( 'the_content', array( null, true ) );
		$this->assertSame( strip_ws( $expected ), strip_ws( $actual ) );

		$actual = get_echo( 'the_content', array( null, false ) );
		$this->assertSame( strip_ws( $expected ), strip_ws( $actual ) );
	}

	/**
	 * Ensure the_content displays the teaser part with a read more link
	 * for a More block on a non-singular page.
	 *
	 * @ticket 46471
	 *
	 * @group blocks
	 */
	public function test_the_content_should_handle_more_block_when_non_singular() {
		$post_content = <<<EOF
<!-- wp:paragraph -->
<p>Teaser part.</p>
<!-- /wp:paragraph -->

<!-- wp:more {"customText":"Read More"} -->
<!--more Read More-->
<!-- /wp:more -->

<!-- wp:paragraph -->
<p>Second block.</p>
<!-- /wp:paragraph -->
EOF;

		$post_id = self::factory()->post->create( compact( 'post_content' ) );

		$expected = <<<EOF
<span id="more-{$post_id}"></span>
<p>Second block.</p>
EOF;

		$this->go_to( home_url() );
		$this->assertFalse( is_singular() );
		$this->assertTrue( have_posts() );
		$this->assertNull( the_post() );

		foreach ( array( true, false ) as $strip_teaser ) {
			$actual = get_echo( 'the_content', array( null, $strip_teaser ) );
			$this->assertContains( 'Teaser part', $actual );
			$this->assertContains( 'Read More</a>', $actual );
			$this->assertNotContains( '<!--more-->', $actual );
			$this->assertNotContains( 'wp:more', $actual );
			$this->assertNotContains( 'wp:paragraph', $actual );
		}
	}

	/**
	 * Ensure the_content displays the teaser part with a read more link for a More block
	 * when using the noteaser text tag on a non-singular page.
	 *
	 * @ticket 46471
	 *
	 * @group blocks
	 */
	public function test_the_content_should_handle_more_block_when_noteaser_on_non_singular() {
		$post_content = <<<EOF
<!-- wp:paragraph -->
<p>Teaser part.</p>
<!-- /wp:paragraph -->

<!-- wp:more -->
<!--more-->
<!--noteaser-->
<!-- /wp:more -->

<!-- wp:paragraph -->
<p>Second block.</p>
<!-- /wp:paragraph -->
EOF;

		$post_id = self::factory()->post->create( compact( 'post_content' ) );

		$this->go_to( home_url() );
		$this->assertFalse( is_singular() );
		$this->assertTrue( have_posts() );
		$this->assertNull( the_post() );

		foreach ( array( true, false ) as $strip_teaser ) {
			$actual = get_echo( 'the_content', array( null, $strip_teaser ) );
			$this->assertContains( 'Teaser part', $actual );
			$this->assertContains( '(more&hellip;)</span></a>', $actual );
			$this->assertNotContains( '<!--more-->', $actual );
			$this->assertNotContains( '<!--noteaser-->', $actual ); // We placed the noteaser tag below the more tag.
			$this->assertNotContains( 'wp:more', $actual );
			$this->assertNotContains( 'wp:paragraph', $actual );
		}
	}
}
