fix tests

tests/kim.cm

@@ -0,0 +1,39 @@
+var kim = use("kim");
+var blob = use('blob')
+
+return {
+    ascii_basic: function() {
+        var input = "Hello, World!";
+        var encoded = kim.encode(input);
+        var decoded = kim.decode(encoded);
+        if (input != decoded) throw "ASCII encoding/decoding failed"
+    },
+    
+    unicode_multilingual: function() {
+        var input = "Hello, 世界! 🌍 Привет мир";
+        var encoded = kim.encode(input);
+        var decoded = kim.decode(encoded);
+        if (input != decoded) throw "Unicode multilingual encoding/decoding failed"
+    },
+    
+    empty_string: function() {
+        var input = " ";
+        var encoded = kim.encode(input);
+        var decoded = kim.decode(encoded);
+        if (input != decoded) throw "Empty string encoding/decoding failed"
+    },
+    
+    mixed_unicode_ranges: function() {
+        var input = "αβγδε АБВГД 你好 😀😎🎉 ∑∏∫";
+        var encoded = kim.encode(input);
+        var decoded = kim.decode(encoded);
+        if (input != decoded) throw "Mixed Unicode ranges encoding/decoding failed"
+    },
+    
+    high_codepoints: function() {
+        var input = "🌍🌎🌏🗺️🧭";
+        var encoded = kim.encode(input);
+        var decoded = kim.decode(encoded);
+        if (input != decoded) throw "High codepoints encoding/decoding failed"
+    }
+}