Split tests into standard client-server, rpc macro tests and ethtests

tests/ethprocs.nim

@@ -1,4 +1,4 @@
-import ../rpcserver, nimcrypto, json, stint, strutils, ethtypes
+import ../rpcserver, nimcrypto, json, stint, strutils, ethtypes, stintjsonconverters
 
 #[
   For details on available RPC calls, see: https://github.com/ethereum/wiki/wiki/JSON-RPC

tests/stintJsonConverters.nim

@@ -0,0 +1,32 @@
+import json, stint
+from ../rpcserver import expect
+
+template stintStr(n: UInt256|Int256): JsonNode =
+  var s = n.toHex
+  if s.len mod 2 != 0: s = "0" & s
+  s = "0x" & s
+  %s
+
+proc `%`*(n: UInt256): JsonNode = n.stintStr
+
+proc `%`*(n: Int256): JsonNode = n.stintStr
+
+# allows UInt256 to be passed as a json string
+proc fromJson*(n: JsonNode, argName: string, result: var UInt256) =
+  # expects base 16 string, starting with "0x"
+  n.kind.expect(JString, argName)
+  let hexStr = n.getStr()
+  if hexStr.len > 64 + 2: # including "0x"
+    raise newException(ValueError, "Parameter \"" & argName & "\" value too long for UInt256: " & $hexStr.len)
+  result = hexStr.parse(StUint[256], 16) # TODO: Handle errors
+
+# allows ref UInt256 to be passed as a json string
+proc fromJson*(n: JsonNode, argName: string, result: var ref UInt256) =
+  # expects base 16 string, starting with "0x"
+  n.kind.expect(JString, argName)
+  let hexStr = n.getStr()
+  if hexStr.len > 64 + 2: # including "0x"
+    raise newException(ValueError, "Parameter \"" & argName & "\" value too long for UInt256: " & $hexStr.len)
+  new result
+  result[] = hexStr.parse(StUint[256], 16) # TODO: Handle errors
+

tests/testethcalls.nim

@@ -1,4 +1,4 @@
-import  ../ rpcclient, ../ rpcserver
+import ../ rpcclient, ../ rpcserver
 import unittest, asyncdispatch, json, tables
 
 from os import getCurrentDir, DirSep
@@ -10,10 +10,18 @@ srv.address = "localhost"
 srv.port = Port(8546)
 
 # importing ethprocs creates the server rpc calls
-import stint, ethtypes, ethprocs
+import stint, ethtypes, ethprocs, stintJsonConverters
 # generate all client ethereum rpc calls
 createRpcSigs(sourceDir & DirSep & "ethcallsigs.nim")
 
+srv.rpc("rpc.uint256param") do(i: UInt256):
+  let r = i + 1.stUint(256)
+  result = %r
+  
+srv.rpc("rpc.testreturnuint256") do() -> UInt256:
+  let r: UInt256 = "0x1234567890abcdef".parse(UInt256, 16)
+  return r
+
 asyncCheck srv.serve
 
 suite "Ethereum RPCs":
@@ -21,6 +29,14 @@ suite "Ethereum RPCs":
     var client = newRpcClient()
     await client.connect("localhost", Port(8546))
 
+    test "UInt256 param":
+      let r = waitFor rpcUInt256Param(%[%"0x1234567890"])
+      check r == %"0x1234567891"
+
+    test "Return UInt256":
+      let r = waitFor rpcTestReturnUInt256(%[])
+      check r == %"0x1234567890abcdef"
+
     test "Version":
       var
         response = waitFor client.web3_clientVersion()

tests/testrpcmacro.nim

@@ -1,4 +1,4 @@
-import unittest, ../ rpcserver, asyncdispatch, json, tables, stint
+import unittest, ../ rpcserver, asyncdispatch, json, tables
 
 type
   # some nested types to check object parsing
@@ -51,9 +51,6 @@ s.rpc("rpc.seqparam") do(a: string, s: seq[int]):
 s.rpc("rpc.objparam") do(a: string, obj: MyObject):
   result = %obj
 
-s.rpc("rpc.uint256param") do(i: UInt256):
-  let r = i + 1.stUint(256)
-  result = %r
 
 s.rpc("rpc.returntypesimple") do(i: int) -> int:
   result = i
@@ -65,10 +62,6 @@ s.rpc("rpc.returntypecomplex") do(i: int) -> Test2:
 s.rpc("rpc.testreturns") do() -> int:
   return 1234
 
-s.rpc("rpc.testreturnuint256") do() -> UInt256:
-  let r: UInt256 = "0x1234567890abcdef".parse(UInt256, 16)
-  return r
-
 # Tests
 suite "Server types":
 
@@ -108,10 +101,6 @@ suite "Server types":
     let r = waitfor rpcObjParam(%[%"abc", testObj])
     check r == testObj
 
-  test "UInt256 param":
-    let r = waitFor rpcUInt256Param(%[%"0x1234567890"])
-    check r == %"0x1234567891"
-
   test "Simple return types":
     let
       inp = %99
@@ -128,10 +117,6 @@ suite "Server types":
     let r = waitFor rpcTestReturns(%[])
     check r == %1234
 
-  test "Return UInt256":
-    let r = waitFor rpcTestReturnUInt256(%[])
-    check r == %"0x1234567890abcdef"
-
   test "Runtime errors":
     expect ValueError:
       # root param not array