add convertCase tests

laravel · Oct 14, 2023 · 91000bf · 91000bf
1 parent 967dab6
commit 91000bf
Showing 1 changed file with 22 additions and 0 deletions.
diff --git a/tests/Support/SupportStrTest.php b/tests/Support/SupportStrTest.php
@@ -302,6 +302,28 @@ public function testStrContainsAll($haystack, $needles, $expected, $ignoreCase =
         $this->assertEquals($expected, Str::containsAll($haystack, $needles, $ignoreCase));
     }
 
+    public function testConvertCase()
+    {
+        // Upper Case Conversion
+        $this->assertSame('HELLO', Str::convertCase('hello', MB_CASE_UPPER));
+        $this->assertSame('WORLD', Str::convertCase('WORLD', MB_CASE_UPPER));
+
+        // Lower Case Conversion
+        $this->assertSame('hello', Str::convertCase('HELLO', MB_CASE_LOWER));
+        $this->assertSame('world', Str::convertCase('WORLD', MB_CASE_LOWER));
+
+        // Case Folding
+        $this->assertSame('hello', Str::convertCase('HeLLo', MB_CASE_FOLD));
+        $this->assertSame('world', Str::convertCase('WoRLD', MB_CASE_FOLD));
+
+        // Multi-byte String
+        $this->assertSame('ÜÖÄ', Str::convertCase('üöä', MB_CASE_UPPER, 'UTF-8'));
+        $this->assertSame('üöä', Str::convertCase('ÜÖÄ', MB_CASE_LOWER, 'UTF-8'));
+
+        // Unsupported Mode
+        $this->assertSame('Hello', Str::convertCase('Hello', -1));
+    }
+
     public function testParseCallback()
     {
         $this->assertEquals(['Class', 'method'], Str::parseCallback('Class@method', 'foo'));