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-rw-r--r--src/cryptonote_basic/hardfork.cpp6
-rw-r--r--tests/unit_tests/hardfork.cpp29
2 files changed, 32 insertions, 3 deletions
diff --git a/src/cryptonote_basic/hardfork.cpp b/src/cryptonote_basic/hardfork.cpp
index aa6746304..f05b25901 100644
--- a/src/cryptonote_basic/hardfork.cpp
+++ b/src/cryptonote_basic/hardfork.cpp
@@ -394,9 +394,9 @@ uint8_t HardFork::get_next_version() const
{
CRITICAL_REGION_LOCAL(lock);
uint64_t height = db.height();
- for (unsigned int n = heights.size() - 1; n > 0; --n) {
- if (height >= heights[n].height) {
- return heights[n < heights.size() - 1 ? n + 1 : n].version;
+ for (auto i = heights.rbegin(); i != heights.rend(); ++i) {
+ if (height >= i->height) {
+ return (i == heights.rbegin() ? i : (i - 1))->version;
}
}
return original_version;
diff --git a/tests/unit_tests/hardfork.cpp b/tests/unit_tests/hardfork.cpp
index ba3e95e7d..d33daca4c 100644
--- a/tests/unit_tests/hardfork.cpp
+++ b/tests/unit_tests/hardfork.cpp
@@ -256,6 +256,35 @@ TEST(check_for_height, Success)
}
}
+TEST(get, next_version)
+{
+ TestDB db;
+ HardFork hf(db);
+
+ ASSERT_TRUE(hf.add_fork(1, 0, 0));
+ ASSERT_TRUE(hf.add_fork(2, 5, 1));
+ ASSERT_TRUE(hf.add_fork(4, 10, 2));
+ hf.init();
+
+ for (uint64_t h = 0; h <= 4; ++h) {
+ ASSERT_EQ(2, hf.get_next_version());
+ db.add_block(mkblock(hf, h, 1), 0, 0, 0, crypto::hash());
+ ASSERT_TRUE(hf.add(db.get_block_from_height(h), h));
+ }
+
+ for (uint64_t h = 5; h <= 9; ++h) {
+ ASSERT_EQ(4, hf.get_next_version());
+ db.add_block(mkblock(hf, h, 2), 0, 0, 0, crypto::hash());
+ ASSERT_TRUE(hf.add(db.get_block_from_height(h), h));
+ }
+
+ for (uint64_t h = 10; h <= 15; ++h) {
+ ASSERT_EQ(4, hf.get_next_version());
+ db.add_block(mkblock(hf, h, 4), 0, 0, 0, crypto::hash());
+ ASSERT_TRUE(hf.add(db.get_block_from_height(h), h));
+ }
+}
+
TEST(states, Success)
{
TestDB db;