Added EthHashStr tests

tests/rpcclient/test_hexstrings.nim

@@ -111,14 +111,39 @@ proc doHexStrTests* =
     test "Too long":
       expect ValueError:
         let
-          # too long
-          e = "0x0f572e5295c57f15886f9b263e2f6d2d6c7b5ec66"
+          e = "0x0f572e5295c57f15886f9b263e2f6d2d6c7b5ec667"
           e_addr = e.ethAddressStr
         check e == e_addr.string
-    test "Wrong format":
+    test "\"0x\" header":
       expect ValueError:
         let
-          # too long
+          # no 0x
           e = "000f572e5295c57f15886f9b263e2f6d2d6c7b5ec6"
           e_addr = e.ethAddressStr
         check e == e_addr.string
+
+  suite "[RPC] Eth hash strings":
+    test "Valid hash":
+      let
+        e = "0x1234567890123456789012345678901234567890123456789012345678901234"
+        e_addr = e.ethHashStr
+      check e == e_addr.string
+    test "Too short":
+      expect ValueError:
+        let
+          short_e = "0x12345678901234567890123456789012345678901234567890123456789012"
+          short_e_addr = short_e.ethHashStr
+        check short_e == short_e_addr.string
+    test "Too long":
+      expect ValueError:
+        let
+          e = "0x123456789012345678901234567890123456789012345678901234567890123456"
+          e_addr = e.ethHashStr
+        check e == e_addr.string
+    test "\"0x\" header":
+      expect ValueError:
+        let
+          # no 0x
+          e = "000x12345678901234567890123456789012"
+          e_addr = e.ethHashStr
+        check e == e_addr.string