--- /dev/null
+<?php
+
+namespace Drupal\Tests\text\Kernel;
+
+use Drupal\KernelTests\KernelTestBase;
+use Drupal\filter\Entity\FilterFormat;
+
+/**
+ * Tests text_summary() with different strings and lengths.
+ *
+ * @group text
+ */
+class TextSummaryTest extends KernelTestBase {
+
+ public static $modules = ['system', 'user', 'filter', 'text'];
+
+ protected function setUp() {
+ parent::setUp();
+
+ $this->installConfig(['text']);
+ }
+
+ /**
+ * Tests an edge case where the first sentence is a question and
+ * subsequent sentences are not. This edge case is documented at
+ * https://www.drupal.org/node/180425.
+ */
+ public function testFirstSentenceQuestion() {
+ $text = 'A question? A sentence. Another sentence.';
+ $expected = 'A question? A sentence.';
+ $this->assertTextSummary($text, $expected, NULL, 30);
+ }
+
+ /**
+ * Test summary with long example.
+ */
+ public function testLongSentence() {
+ $text = 'Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. ' . // 125
+ 'Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. ' . // 108
+ 'Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. ' . // 103
+ 'Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.'; // 110
+ $expected = 'Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. ' .
+ 'Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. ' .
+ 'Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.';
+ // First three sentences add up to: 336, so add one for space and then 3 to get half-way into next word.
+ $this->assertTextSummary($text, $expected, NULL, 340);
+ }
+
+ /**
+ * Test various summary length edge cases.
+ */
+ public function testLength() {
+ FilterFormat::create([
+ 'format' => 'autop',
+ 'filters' => [
+ 'filter_autop' => [
+ 'status' => 1,
+ ],
+ ],
+ ])->save();
+ FilterFormat::create([
+ 'format' => 'autop_correct',
+ 'filters' => [
+ 'filter_autop' => [
+ 'status' => 1,
+ ],
+ 'filter_htmlcorrector' => [
+ 'status' => 1,
+ ],
+ ],
+ ])->save();
+
+ // This string tests a number of edge cases.
+ $text = "<p>\nHi\n</p>\n<p>\nfolks\n<br />\n!\n</p>";
+
+ // The summaries we expect text_summary() to return when $size is the index
+ // of each array item.
+ // Using no text format:
+ $format = NULL;
+ $i = 0;
+ $this->assertTextSummary($text, "<p>\nHi\n</p>\n<p>\nfolks\n<br />\n!\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<", $format, $i++);
+ $this->assertTextSummary($text, "<p", $format, $i++);
+ $this->assertTextSummary($text, "<p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\n", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nH", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n<", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>\n<p>\nfolks\n<br />\n!\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>\n<p>\nfolks\n<br />\n!\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>\n<p>\nfolks\n<br />\n!\n</p>", $format, $i++);
+
+ // Using a text format with filter_autop enabled.
+ $format = 'autop';
+ $i = 0;
+ $this->assertTextSummary($text, "<p>\nHi\n</p>\n<p>\nfolks\n<br />\n!\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<", $format, $i++);
+ $this->assertTextSummary($text, "<p", $format, $i++);
+ $this->assertTextSummary($text, "<p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>\n<p>\nfolks\n<br />\n!\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>\n<p>\nfolks\n<br />\n!\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>\n<p>\nfolks\n<br />\n!\n</p>", $format, $i++);
+
+ // Using a text format with filter_autop and filter_htmlcorrector enabled.
+ $format = 'autop_correct';
+ $i = 0;
+ $this->assertTextSummary($text, "<p>\nHi\n</p>\n<p>\nfolks\n<br />\n!\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "", $format, $i++);
+ $this->assertTextSummary($text, "<p></p>", $format, $i++);
+ $this->assertTextSummary($text, "<p></p>", $format, $i++);
+ $this->assertTextSummary($text, "<p></p>", $format, $i++);
+ $this->assertTextSummary($text, "<p></p>", $format, $i++);
+ $this->assertTextSummary($text, "<p></p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>\n<p>\nfolks\n<br />\n!\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>\n<p>\nfolks\n<br />\n!\n</p>", $format, $i++);
+ $this->assertTextSummary($text, "<p>\nHi\n</p>\n<p>\nfolks\n<br />\n!\n</p>", $format, $i++);
+ }
+
+ /**
+ * Calls text_summary() and asserts that the expected teaser is returned.
+ */
+ public function assertTextSummary($text, $expected, $format = NULL, $size = NULL) {
+ $summary = text_summary($text, $format, $size);
+ $this->assertIdentical($summary, $expected, format_string('<pre style="white-space: pre-wrap">@actual</pre> is identical to <pre style="white-space: pre-wrap">@expected</pre>', [
+ '@actual' => $summary,
+ '@expected' => $expected,
+ ]));
+ }
+
+}