1 files changed, 42 insertions, 0 deletions
diff --git a/test/visitors/test_informix.rb b/test/visitors/test_informix.rb
new file mode 100644
index 0000000000..a8a52a0160
--- /dev/null
+++ b/test/visitors/test_informix.rb
@@ -0,0 +1,42 @@
+require 'helper'
+
+module Arel
+  module Visitors
+    describe 'the informix visitor' do
+      before do
+        @visitor = Informix.new Table.engine
+      end
+
+      it 'uses LIMIT n to limit results' do
+        stmt = Nodes::SelectStatement.new
+        stmt.limit = Nodes::Limit.new(1)
+        sql = @visitor.accept(stmt)
+        sql.must_be_like "SELECT LIMIT 1"
+      end
+
+      it 'uses LIMIT n in updates with a limit' do
+        stmt = Nodes::UpdateStatement.new
+        stmt.limit = Nodes::Limit.new(1)
+        stmt.key = 'id'
+        sql = @visitor.accept(stmt)
+        sql.must_be_like "UPDATE NULL WHERE 'id' IN (SELECT LIMIT 1 'id')"
+      end
+
+      it 'uses SKIP n to jump results' do
+        stmt = Nodes::SelectStatement.new
+        stmt.offset = Nodes::Offset.new(10)
+        sql = @visitor.accept(stmt)
+        sql.must_be_like "SELECT SKIP 10"
+      end
+
+      it 'uses SKIP before LIMIT' do
+        stmt = Nodes::SelectStatement.new
+        stmt.limit = Nodes::Limit.new(1)
+        stmt.offset = Nodes::Offset.new(1)
+        sql = @visitor.accept(stmt)
+        sql.must_be_like "SELECT SKIP 1 LIMIT 1"
+      end
+
+    end
+  end
+end