init

lib/sc/tests/CustomSelectorTest.php

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+<?php
+
+namespace Spekulatius\PHPScraper\Tests;
+
+class CustomSelectorTest extends \PHPUnit\Framework\TestCase
+{
+    /**
+     * @test
+     */
+    public function testFailedSelectionBasedOnId()
+    {
+        // Navigate to test page
+        $web = new \Spekulatius\PHPScraper\PHPScraper;
+        $web->go('https://test-pages.phpscraper.de/content/selectors.html');
+
+        // Ensure we got the test page.
+        $this->assertSame(
+            'Selector Tests',
+            $web->title
+        );
+
+        // Trigger failing test.
+        try {
+            $web->filterFirstText("//[@id='by-id']");
+        } catch (\Exception $e) {
+            $this->assertSame(
+                'DOMXPath::query(): Invalid expression',
+                $e->getMessage()
+            );
+        }
+    }
+
+    /**
+     * @test
+     */
+    public function testSelectionBasedOnId()
+    {
+        // Navigate to test page
+        $web = new \Spekulatius\PHPScraper\PHPScraper;
+        $web->go('https://test-pages.phpscraper.de/content/selectors.html');
+
+        // Ensure we got the test page.
+        $this->assertSame(
+            'Selector Tests',
+            $web->title
+        );
+
+        // Select content using `->text()`
+        $this->assertSame(
+            'Content by ID',
+            $web->filterFirstText("//*[@id='by-id']")
+        );
+    }
+
+    /**
+     * @test
+     */
+    public function testSelectionBasedOnTag()
+    {
+        // Navigate to test page
+        $web = new \Spekulatius\PHPScraper\PHPScraper;
+        $web->go('https://test-pages.phpscraper.de/content/selectors.html');
+
+        // Ensure we got the test page.
+        $this->assertSame(
+            'Selector Tests',
+            $web->title
+        );
+
+        // Select single string using first and chain `->text()`
+        $this->assertSame(
+            'Selector Tests (h1)',
+            $web->filterFirst('//h1')->text()
+        );
+
+        // Select as array using `filterTexts`:
+        $this->assertSame(
+            ['Selector Tests (h1)'],
+            $web->filterTexts('//h1')
+        );
+    }
+
+    /**
+     * @test
+     */
+    public function testSelectionBasedOnClass()
+    {
+        // Navigate to test page
+        $web = new \Spekulatius\PHPScraper\PHPScraper;
+        $web->go('https://test-pages.phpscraper.de/content/selectors.html');
+
+        // Ensure we got the test page.
+        $this->assertSame(
+            'Selector Tests',
+            $web->title
+        );
+
+        // Select without `->text()` and using the filterTexts-method instead.
+        $this->assertSame(
+            ['Content by Class 1', 'Content by Class 2'],
+            $web->filterTexts("//*[@class='by-class']")
+        );
+    }
+}