test_v3: Add max op test case
Add test case to ensure that add blocks will fail when we try to add
more blocks that options.op_count_max specifies. Expected behavior is
that we will write until that count and then fail
Test: cow_api_test
Change-Id: Icb44508c1bacbbe676347df9a58c0526068eebe0
diff --git a/fs_mgr/libsnapshot/libsnapshot_cow/test_v3.cpp b/fs_mgr/libsnapshot/libsnapshot_cow/test_v3.cpp
index 3277c99..8a67c08 100644
--- a/fs_mgr/libsnapshot/libsnapshot_cow/test_v3.cpp
+++ b/fs_mgr/libsnapshot/libsnapshot_cow/test_v3.cpp
@@ -94,6 +94,24 @@
ASSERT_EQ(header.cluster_ops, 0);
}
+TEST_F(CowTestV3, MaxOp) {
+ CowOptions options;
+ options.op_count_max = 20;
+ auto writer = CreateCowWriter(3, options, GetCowFd());
+ ASSERT_FALSE(writer->AddZeroBlocks(1, 21));
+ ASSERT_FALSE(writer->AddZeroBlocks(1, 1));
+ std::string data = "This is some data, believe it";
+ data.resize(options.block_size, '\0');
+
+ ASSERT_FALSE(writer->AddRawBlocks(5, data.data(), data.size()));
+
+ ASSERT_TRUE(writer->Finalize());
+
+ CowReader reader;
+ ASSERT_TRUE(reader.Parse(cow_->fd));
+ ASSERT_EQ(reader.header_v3().op_count, 20);
+}
+
TEST_F(CowTestV3, ZeroOp) {
CowOptions options;
options.op_count_max = 20;