Rename `TransactionTimeout` to more descriptive `LockWaitTimeout` (#31223)

Since #31129, new error class `StatementTimeout` has been added.
`TransactionTimeout` is caused by the timeout shorter than
`StatementTimeout`, but its name is too generic. I think that it should
be a name that understands the difference with `StatementTimeout`.

2 files changed, 4 insertions, 4 deletions

diff --git a/activerecord/test/cases/adapters/mysql2/transaction_test.rb b/activerecord/test/cases/adapters/mysql2/transaction_test.rb
index 4a3a4503de..da4b73a0da 100644
--- a/activerecord/test/cases/adapters/mysql2/transaction_test.rb
+++ b/activerecord/test/cases/adapters/mysql2/transaction_test.rb
@@ -60,8 +60,8 @@ module ActiveRecord
       end
     end
 
-    test "raises TransactionTimeout when lock wait timeout exceeded" do
-      assert_raises(ActiveRecord::TransactionTimeout) do
+    test "raises LockWaitTimeout when lock wait timeout exceeded" do
+      assert_raises(ActiveRecord::LockWaitTimeout) do
         s = Sample.create!(value: 1)
         latch1 = Concurrent::CountDownLatch.new
         latch2 = Concurrent::CountDownLatch.new
diff --git a/activerecord/test/cases/adapters/postgresql/transaction_test.rb b/activerecord/test/cases/adapters/postgresql/transaction_test.rb
index 4d63bbce59..ebba0f0c1c 100644
--- a/activerecord/test/cases/adapters/postgresql/transaction_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/transaction_test.rb
@@ -91,9 +91,9 @@ module ActiveRecord
       end
     end
 
-    test "raises TransactionTimeout when lock wait timeout exceeded" do
+    test "raises LockWaitTimeout when lock wait timeout exceeded" do
       skip unless ActiveRecord::Base.connection.postgresql_version >= 90300
-      assert_raises(ActiveRecord::TransactionTimeout) do
+      assert_raises(ActiveRecord::LockWaitTimeout) do
         s = Sample.create!(value: 1)
         latch1 = Concurrent::CountDownLatch.new
         latch2 = Concurrent::CountDownLatch.new