Better check for whether or not a table is_chrono?

lib/chrono_model/adapter.rb

@@ -140,8 +140,9 @@ def on_schema(schema, recurse: :follow)
     # Returns true if the given name references a temporal table.
     #
     def is_chrono?(table)
-      on_temporal_schema { data_source_exists?(table) } &&
-        on_history_schema { data_source_exists?(table) }
+      base_table_name = table.to_s.split(".").last
+      data_source_exists?("#{TEMPORAL_SCHEMA}.#{quote_table_name(base_table_name)}") &&
+        data_source_exists?("#{HISTORY_SCHEMA}.#{quote_table_name(base_table_name)}")
     end
 
     # Reads the Gem metadata from the COMMENT set on the given PostgreSQL

spec/chrono_model/adapter/base_spec.rb

@@ -134,6 +134,25 @@
       it { expect(adapter.is_chrono?(table)).to be(false) }
     end
 
+    context "when passing a fully specified schema" do
+      before(:all) do
+        adapter.execute "BEGIN"
+        adapter.execute "CREATE SCHEMA test_schema"
+
+        table "test_schema.#{table}"
+        adapter.execute "CREATE TABLE #{table} (id integer)"
+      end
+
+      after(:all) do
+        table "test_table"
+        adapter.execute "ROLLBACK"
+      end
+
+      it { expect { adapter.is_chrono?(table) }.to_not raise_error }
+
+      it { expect(adapter.is_chrono?(table)).to be(false) }
+    end
+
     context 'when schemas are not there yet' do
       before(:all) do
         adapter.execute 'BEGIN'
@@ -150,5 +169,53 @@
 
       it { expect(adapter.is_chrono?(table)).to be(false) }
     end
+
+    context "within a different search_path" do
+      before(:all) do
+        schema_name = "schema_#{Random.uuid.tr("-", "_")}"
+
+        adapter.execute "BEGIN"
+        adapter.execute "CREATE SCHEMA #{schema_name}"
+        adapter.execute "SET search_path TO #{schema_name}"
+      end
+
+      after(:all) do
+        adapter.execute "ROLLBACK"
+      end
+
+      with_temporal_table do
+        it { expect(adapter.is_chrono?(table)).to be(true) }
+      end
+
+      with_plain_table do
+        it { expect(adapter.is_chrono?(table)).to be(false) }
+      end
+    end
+
+    context "with a table in a different schema" do
+      before(:all) do
+        schema_name = "schema_#{Random.uuid.tr("-", "_")}"
+
+        adapter.execute "BEGIN"
+        adapter.execute "CREATE SCHEMA #{schema_name}"
+        adapter.execute "SET search_path TO #{schema_name}"
+
+        table "different_schema_table"
+      end
+
+      after(:all) do
+        table "test_table"
+
+        adapter.execute "ROLLBACK"
+      end
+
+      with_temporal_table do
+        it { expect(adapter.is_chrono?(table)).to be(true) }
+      end
+
+      with_plain_table do
+        it { expect(adapter.is_chrono?(table)).to be(false) }
+      end
+    end
   end
 end