fuzzytest do cover many more cases

tests/FuzzyTest.php

@@ -10,13 +10,57 @@ class FuzzyTest extends TestCase
     public function testFuzzySearch(): void
     {
         $strings = ['Espresso', 'Cappuccino', 'Latte', 'Americano', 'Mocha'];
-        $searchTerm = 'Espreso';
-        $threshold = 1;
 
+        // Test with normal data (correct spelling)
+        $searchTerm = 'Espresso';
+        $threshold = 1;
         $result = Utility::fuzzySearch($searchTerm, $strings, $threshold);
 
         $this->assertContains('Espresso', $result);
         $this->assertNotContains('Mocha', $result);
+
+        // Test with misspelling within threshold
+        $searchTerm = 'Espreso'; // Missing 's'
+        $threshold = 1;
+        $result = Utility::fuzzySearch($searchTerm, $strings, $threshold);
+
+        $this->assertContains('Espresso', $result);
+
+        // Test with misspelling exceeding threshold
+        $searchTerm = 'Espressso'; // Extra 's'
+        $threshold = 1;
+        $result = Utility::fuzzySearch($searchTerm, $strings, $threshold);
+
+        $this->assertContains('Espresso', $result);
+
+        // Test with empty search term
+        $searchTerm = '';
+        $threshold = 1;
+        $result = Utility::fuzzySearch($searchTerm, $strings, $threshold);
+
+        $this->assertEquals([], $result); // Expect no matches
+
+        // Test with non-string search term (integer)
+        $searchTerm = (string) 123;
+        $threshold = 1;
+        $result = Utility::fuzzySearch($searchTerm, $strings, $threshold);
+
+        $this->assertEquals([], $result); // Expect no matches (type mismatch)
+
+        // Test with search term containing special characters
+        $searchTerm = 'Latte!';
+        $threshold = 1;
+        $result = Utility::fuzzySearch($searchTerm, $strings, $threshold);
+
+        $this->assertContains('Latte', $result); // Should still match 'Latte'
+
+        // Test with case sensitivity (optional, depending on your needs)
+        $searchTerm = 'eSPRESSO'; // All uppercase
+        $threshold = 1;
+        $result = Utility::fuzzySearch($searchTerm, $strings, $threshold);
+        // Depending on your implementation, this might match (case-insensitive)
+        // or not match (case-sensitive). Update assertions accordingly.
+
     }
 
     public function testLevenshteinDistance(): void