From 5d921fa3a0cea9d87e7fd391c0ddd3115d00d0c4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?P=C3=A9ter=20Szil=C3=A1gyi?= <peterke@gmail.com>
Date: Tue, 18 Sep 2018 16:24:35 +0300
Subject: core, params: polish net gas metering PR a bit

---
 core/state/state_test.go | 58 ++++++++++++++++++++++++++++++------------------
 1 file changed, 36 insertions(+), 22 deletions(-)

(limited to 'core/state/state_test.go')

diff --git a/core/state/state_test.go b/core/state/state_test.go
index 123559ea9..a09273f3b 100644
--- a/core/state/state_test.go
+++ b/core/state/state_test.go
@@ -96,11 +96,15 @@ func (s *StateSuite) TestNull(c *checker.C) {
 	s.state.CreateAccount(address)
 	//value := common.FromHex("0x823140710bf13990e4500136726d8b55")
 	var value common.Hash
+
 	s.state.SetState(address, common.Hash{}, value)
 	s.state.Commit(false)
-	value = s.state.GetState(address, common.Hash{})
-	if value != (common.Hash{}) {
-		c.Errorf("expected empty hash. got %x", value)
+
+	if value := s.state.GetState(address, common.Hash{}); value != (common.Hash{}) {
+		c.Errorf("expected empty current value, got %x", value)
+	}
+	if value := s.state.GetCommittedState(address, common.Hash{}); value != (common.Hash{}) {
+		c.Errorf("expected empty committed value, got %x", value)
 	}
 }
 
@@ -110,20 +114,24 @@ func (s *StateSuite) TestSnapshot(c *checker.C) {
 	data1 := common.BytesToHash([]byte{42})
 	data2 := common.BytesToHash([]byte{43})
 
+	// snapshot the genesis state
+	genesis := s.state.Snapshot()
+
 	// set initial state object value
 	s.state.SetState(stateobjaddr, storageaddr, data1)
-	// get snapshot of current state
 	snapshot := s.state.Snapshot()
 
-	// set new state object value
+	// set a new state object value, revert it and ensure correct content
 	s.state.SetState(stateobjaddr, storageaddr, data2)
-	// restore snapshot
 	s.state.RevertToSnapshot(snapshot)
 
-	// get state storage value
-	res := s.state.GetState(stateobjaddr, storageaddr)
+	c.Assert(s.state.GetState(stateobjaddr, storageaddr), checker.DeepEquals, data1)
+	c.Assert(s.state.GetCommittedState(stateobjaddr, storageaddr), checker.DeepEquals, common.Hash{})
 
-	c.Assert(data1, checker.DeepEquals, res)
+	// revert up to the genesis state and ensure correct content
+	s.state.RevertToSnapshot(genesis)
+	c.Assert(s.state.GetState(stateobjaddr, storageaddr), checker.DeepEquals, common.Hash{})
+	c.Assert(s.state.GetCommittedState(stateobjaddr, storageaddr), checker.DeepEquals, common.Hash{})
 }
 
 func (s *StateSuite) TestSnapshotEmpty(c *checker.C) {
@@ -208,24 +216,30 @@ func compareStateObjects(so0, so1 *stateObject, t *testing.T) {
 		t.Fatalf("Code mismatch: have %v, want %v", so0.code, so1.code)
 	}
 
-	if len(so1.cachedStorage) != len(so0.cachedStorage) {
-		t.Errorf("Storage size mismatch: have %d, want %d", len(so1.cachedStorage), len(so0.cachedStorage))
+	if len(so1.dirtyStorage) != len(so0.dirtyStorage) {
+		t.Errorf("Dirty storage size mismatch: have %d, want %d", len(so1.dirtyStorage), len(so0.dirtyStorage))
 	}
-	for k, v := range so1.cachedStorage {
-		if so0.cachedStorage[k] != v {
-			t.Errorf("Storage key %x mismatch: have %v, want %v", k, so0.cachedStorage[k], v)
+	for k, v := range so1.dirtyStorage {
+		if so0.dirtyStorage[k] != v {
+			t.Errorf("Dirty storage key %x mismatch: have %v, want %v", k, so0.dirtyStorage[k], v)
 		}
 	}
-	for k, v := range so0.cachedStorage {
-		if so1.cachedStorage[k] != v {
-			t.Errorf("Storage key %x mismatch: have %v, want none.", k, v)
+	for k, v := range so0.dirtyStorage {
+		if so1.dirtyStorage[k] != v {
+			t.Errorf("Dirty storage key %x mismatch: have %v, want none.", k, v)
 		}
 	}
-
-	if so0.suicided != so1.suicided {
-		t.Fatalf("suicided mismatch: have %v, want %v", so0.suicided, so1.suicided)
+	if len(so1.originStorage) != len(so0.originStorage) {
+		t.Errorf("Origin storage size mismatch: have %d, want %d", len(so1.originStorage), len(so0.originStorage))
+	}
+	for k, v := range so1.originStorage {
+		if so0.originStorage[k] != v {
+			t.Errorf("Origin storage key %x mismatch: have %v, want %v", k, so0.originStorage[k], v)
+		}
 	}
-	if so0.deleted != so1.deleted {
-		t.Fatalf("Deleted mismatch: have %v, want %v", so0.deleted, so1.deleted)
+	for k, v := range so0.originStorage {
+		if so1.originStorage[k] != v {
+			t.Errorf("Origin storage key %x mismatch: have %v, want none.", k, v)
+		}
 	}
 }
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