Merge pull request #97 from Divyesh000/testfuzzy

write tests for Fuzzy Search

tests/FuzzyTest.php

@@ -0,0 +1,54 @@
+<?php
+
+declare(strict_types=1);
+
+use PHPUnit\Framework\TestCase;
+use Steamy\Core\Utility;
+
+class FuzzyTest extends TestCase
+{
+    /**
+     * @dataProvider fuzzySearchDataProvider
+     */
+    public function testFuzzySearch(string $searchTerm, array $strings, int $threshold, array $expected): void
+    {
+        $result = Utility::fuzzySearch($searchTerm, $strings, $threshold);
+        $this->assertEquals($expected, $result);
+    }
+
+    public static function fuzzySearchDataProvider(): array
+    {
+        $strings = ['Espresso', 'Cappuccino', 'Latte', 'Americano', 'Mocha'];
+        return [
+            ['Espresso', $strings, 1, ['Espresso']],
+            ['Espreso', $strings, 1, ['Espresso']], // Missing 's'
+            ['Espressso', $strings, 1, ['Espresso']], // Extra 's'
+            ['', $strings, 1, []], // Empty search term
+            [(string) 123, $strings, 1, []], // Non-string search term (integer)
+            ['Latte!', $strings, 1, ['Latte']], // Search term containing special characters
+            ['eSPRESSO', $strings, 1, ['Espresso']], // Case sensitivity test
+        ];
+    }
+
+    /**
+     * @dataProvider levenshteinDistanceDataProvider
+     */
+    public function testLevenshteinDistance(string $str1, string $str2, int $expected): void
+    {
+        $result = Utility::levenshteinDistance($str1, $str2);
+        $this->assertEquals($expected, $result);
+    }
+
+    public static function levenshteinDistanceDataProvider(): array
+    {
+        return [
+            ['Almond', 'Coconut', 5],
+            ['Almond', 'Almond', 0], // Same strings
+            ['Almond', 'Almon', 1], // Missing character
+            ['Almond', 'Almondd', 1], // Extra character
+            ['Almond', 'Almend', 1], // Different character
+            ['Almond', '', 6], // One string is empty
+            ['', '', 0], // Both strings are empty
+        ];
+    }
+}