allow user to turn pruning on/off when run test

tests/test_blockchain_json.nim

@@ -635,8 +635,7 @@ proc testFixture(node: JsonNode, testStatusIMPL: var TestStatus, debugMode = fal
       continue
 
     var tester = parseTester(fixture, testStatusIMPL)
-    # TODO: do we need another test with pruneTrie = false?
-    var chainDB = newBaseChainDB(newMemoryDb(), pruneTrie = false)
+    var chainDB = newBaseChainDB(newMemoryDb(), pruneTrie = getConfiguration().pruning)
 
     echo "TESTING: ", fixtureName
     if not tester.good: continue

tests/test_config.nim

@@ -18,6 +18,7 @@ type
     index*: int
     trace*: bool
     legacy*: bool
+    pruning*: bool
 
 var testConfig {.threadvar.}: Configuration
 
@@ -26,6 +27,7 @@ proc initConfiguration(): Configuration =
   result.fork = FkFrontier
   result.index = 0
   result.trace = true
+  result.pruning = true
 
 proc getConfiguration*(): Configuration {.gcsafe.} =
   if isNil(testConfig):
@@ -48,6 +50,7 @@ proc processArguments*(msg: var string): ConfigStatus =
       of "index": config.index = parseInt(value)
       of "trace": config.trace = parseBool(value)
       of "legacy": config.legacy = parseBool(value)
+      of "pruning": config.pruning = parseBool(value)
       else:
         msg = "Unknown option " & key
         if value.len > 0: msg = msg & " : " & value

tests/test_generalstate_json.nim

@@ -88,8 +88,7 @@ proc dumpDebugData(tester: Tester, vmState: BaseVMState, sender: EthAddress, gas
 proc testFixtureIndexes(tester: Tester, testStatusIMPL: var TestStatus) =
   var tracerFlags: set[TracerFlags] = if tester.trace: {TracerFlags.EnableTracing} else : {}
 
-  # TODO: do we need another test with pruneTrie = false?
-  var chainDB = newBaseChainDB(newMemoryDb(), pruneTrie = true)
+  var chainDB = newBaseChainDB(newMemoryDb(), pruneTrie = getConfiguration().pruning)
   var vmState = newGST_VMState(emptyRlpHash, tester.header, chainDB, tracerFlags)
   var gasUsed: GasInt
   let sender = tester.tx.getSender()