Add more tests

Author: JBlond

tests/Diff/DiffOptionsTest.php

@@ -0,0 +1,42 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Tests\Diff;
+
+use PHPUnit\Framework\TestCase;
+use jblond\Diff;
+
+class DiffOptionsTest extends TestCase
+{
+    public function testIgnoreWhitespace()
+    {
+        $diff = new Diff("Hello World", "Hello   World", ['ignoreWhitespace' => true]);
+        $this->assertTrue($diff->isIdentical());
+    }
+
+    public function testIgnoreCase()
+    {
+        $diff = new Diff("Hello", "hello", ['ignoreCase' => true]);
+        $this->assertTrue($diff->isIdentical());
+    }
+
+    public function testIgnoreLines()
+    {
+        $a = "line1\n// comment\nline2";
+        $b = "line1\n// comment\nline2";
+
+        $diff = new Diff($a, $b, ['ignoreLines' => ['// comment']]);
+
+        $this->assertTrue($diff->isIdentical());
+    }
+
+
+    public function testContextOption()
+    {
+        $a = "A\nB\nC\nD";
+        $b = "A\nX\nC\nD";
+        $diff = new Diff($a, $b, ['context' => 0]);
+        $this->assertFalse($diff->isIdentical());
+    }
+}

tests/Diff/Renderer/Cli/CliTest.php

@@ -0,0 +1,17 @@
+<?php
+
+namespace Tests\Diff\Renderer\Cli;
+
+use PHPUnit\Framework\TestCase;
+use jblond\Diff;
+
+class CliTest extends TestCase
+{
+    public function testCliRendererWithColors(): void
+    {
+        $diff = new Diff("foo", "bar");
+        $renderer = new Diff\Renderer\Text\UnifiedCli(['cliColor' => true]);
+        $output = $diff->render($renderer);
+        $this->assertStringContainsString("\033[", $output); // ANSI escape
+    }
+}