chore: implemented EthereumAddress tests

Author: JeneaVranceanu

Tests/web3swiftTests/localTests/EthereumAddressTest.swift

@@ -1,8 +1,38 @@
 //
-//  File.swift
+//  EthereumAddressTest.swift
 //  
 //
 //  Created by JeneaVranceanu on 03.02.2023.
 //
 
 import Foundation
+import XCTest
+
+@testable import Web3Core
+
+class EthereumAddressTest: XCTestCase {
+
+    func testZeroAddress() {
+        XCTAssertNotNil(EthereumAddress(Data(count: 20)))
+    }
+
+    func testAddress() {
+        let rawAddress = "0x200eb5ccda1c35b0f5bf82552fdd65a8aee98e79"
+        let ethereumAddress = EthereumAddress(rawAddress)
+        XCTAssertNotNil(ethereumAddress)
+        XCTAssertEqual(ethereumAddress?.address.lowercased(), rawAddress)
+    }
+
+    func testInvalidAddress() {
+        var rawAddress = "0x200eb5ccda1c35b0f5bf82552e98e79"
+        var ethereumAddress = EthereumAddress(rawAddress)
+        XCTAssertNil(ethereumAddress)
+        rawAddress = "0x200eb5ccDA1c35b0f5bf82552fdd65a8aeeabcde"
+        ethereumAddress = EthereumAddress(rawAddress)
+        XCTAssertNil(ethereumAddress)
+        rawAddress = "0x200eb5ccda1c35b0f5bf82552fdd65a8aeeabcdef"
+        ethereumAddress = EthereumAddress(rawAddress)
+        XCTAssertNil(ethereumAddress)
+    }
+
+}