feat: FizzBuzz at PHP South Wales

php/tests/ExampleTest.php

@@ -1,5 +0,0 @@
-<?php
-
-it('should return true', function () {
-    expect(false)->toBeTrue();
-});

php/tests/FizzBuzzTest.php

@@ -0,0 +1,40 @@
+<?php
+
+// A number is fizz if it is divisible by 3 or if it has a 3 in it
+// A number is buzz if it is divisible by 5 or if it has a 5 in it
+
+function FizzBuzz(int $input) {
+    $output = '';
+
+    if ($input % 3 === 0 || stripos($input, '3') !== false) {
+        $output .= 'Fizz';
+    }
+
+    if ($input % 5 === 0 || stripos($input, '5') !== false) {
+        $output .= 'Buzz';
+    }
+
+    return $output ?: (string) $input;
+}
+
+it('should return the input if not divisible by 3 or 5', function ($input, $expected) {
+    expect(FizzBuzz($input))->toBe($expected);
+})->with([
+    [1, '1'],
+    [2, '2'],
+    [4, '4'],
+    [7, '7'],
+    [8, '8'],
+]);
+
+test('Numbers divisible by or containing 3 should return "Fizz"', function ($input) {
+    expect(FizzBuzz($input))->toBe('Fizz');
+})->with([3, 6, 9, 13]);
+
+test('Numbers divisible by or containing 5 should return "Buzz"', function ($input) {
+    expect(FizzBuzz($input))->toBe('Buzz');
+})->with([5, 10, 20, 52]);
+
+test('Numbers divisible by or containing 5 or divisible or containing 3 should return "FizzBuzz"', function ($input) {
+    expect(FizzBuzz($input))->toBe('FizzBuzz');
+})->with([15, 30, 35, 53]);