Nialexsan/univ3 tests

cadence/tests/scripts/get_evm_code.cdc

@@ -0,0 +1,45 @@
+import "EVM"
+
+// Pass an EVM address as a hex string like "0x805945998f912d461807865a3b778BacfC388759"
+access(all) fun main(evmAddressHex: String): {String: String} {
+    // Parse the hex string into an EVM address
+    let evmAddr = EVM.addressFromString(evmAddressHex)  // helper provided by the EVM contract
+
+    // Runtime bytecode (what you see from eth_getCode)
+    let runtime: [UInt8] = evmAddr.code()
+
+    // Optional: contract “creation code” isn’t stored on-chain; only runtime code exists after deployment.
+
+    // Small helpers to pretty-print as hex
+    fun toHex(_ bytes: [UInt8]): String {
+        let table: [String] = [
+            "00","01","02","03","04","05","06","07","08","09","0a","0b","0c","0d","0e","0f",
+            "10","11","12","13","14","15","16","17","18","19","1a","1b","1c","1d","1e","1f",
+            "20","21","22","23","24","25","26","27","28","29","2a","2b","2c","2d","2e","2f",
+            "30","31","32","33","34","35","36","37","38","39","3a","3b","3c","3d","3e","3f",
+            "40","41","42","43","44","45","46","47","48","49","4a","4b","4c","4d","4e","4f",
+            "50","51","52","53","54","55","56","57","58","59","5a","5b","5c","5d","5e","5f",
+            "60","61","62","63","64","65","66","67","68","69","6a","6b","6c","6d","6e","6f",
+            "70","71","72","73","74","75","76","77","78","79","7a","7b","7c","7d","7e","7f",
+            "80","81","82","83","84","85","86","87","88","89","8a","8b","8c","8d","8e","8f",
+            "90","91","92","93","94","95","96","97","98","99","9a","9b","9c","9d","9e","9f",
+            "a0","a1","a2","a3","a4","a5","a6","a7","a8","a9","aa","ab","ac","ad","ae","af",
+            "b0","b1","b2","b3","b4","b5","b6","b7","b8","b9","ba","bb","bc","bd","be","bf",
+            "c0","c1","c2","c3","c4","c5","c6","c7","c8","c9","ca","cb","cc","cd","ce","cf",
+            "d0","d1","d2","d3","d4","d5","d6","d7","d8","d9","da","db","dc","dd","de","df",
+            "e0","e1","e2","e3","e4","e5","e6","e7","e8","e9","ea","eb","ec","ed","ee","ef",
+            "f0","f1","f2","f3","f4","f5","f6","f7","f8","f9","fa","fb","fc","fd","fe","ff"
+        ]
+        var s = "0x"
+        for b in bytes {
+            s = s.concat(table[Int(b)])
+        }
+        return s
+    }
+
+    return {
+        "address": evmAddressHex,
+        "hasCode": runtime.length > 0 ? "true" : "false"
+        // "runtimeCodeHex": toHex(runtime)
+    }
+}