diff options
Diffstat (limited to 'activerecord/test/cases/arel/visitors/informix_test.rb')
-rw-r--r-- | activerecord/test/cases/arel/visitors/informix_test.rb | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/activerecord/test/cases/arel/visitors/informix_test.rb b/activerecord/test/cases/arel/visitors/informix_test.rb index b0b031cca3..b6c2dd6ae7 100644 --- a/activerecord/test/cases/arel/visitors/informix_test.rb +++ b/activerecord/test/cases/arel/visitors/informix_test.rb @@ -54,6 +54,45 @@ module Arel sql = compile(stmt) sql.must_be_like 'SELECT FROM "posts" INNER JOIN "comments"' end + + describe "Nodes::IsNotDistinctFrom" do + it "should construct a valid generic SQL statement" do + test = Table.new(:users)[:name].is_not_distinct_from "Aaron Patterson" + compile(test).must_be_like %{ + CASE WHEN "users"."name" = 'Aaron Patterson' OR ("users"."name" IS NULL AND 'Aaron Patterson' IS NULL) THEN 0 ELSE 1 END = 0 + } + end + + it "should handle column names on both sides" do + test = Table.new(:users)[:first_name].is_not_distinct_from Table.new(:users)[:last_name] + compile(test).must_be_like %{ + CASE WHEN "users"."first_name" = "users"."last_name" OR ("users"."first_name" IS NULL AND "users"."last_name" IS NULL) THEN 0 ELSE 1 END = 0 + } + end + + it "should handle nil" do + @table = Table.new(:users) + val = Nodes.build_quoted(nil, @table[:active]) + sql = compile Nodes::IsNotDistinctFrom.new(@table[:name], val) + sql.must_be_like %{ "users"."name" IS NULL } + end + end + + describe "Nodes::IsDistinctFrom" do + it "should handle column names on both sides" do + test = Table.new(:users)[:first_name].is_distinct_from Table.new(:users)[:last_name] + compile(test).must_be_like %{ + CASE WHEN "users"."first_name" = "users"."last_name" OR ("users"."first_name" IS NULL AND "users"."last_name" IS NULL) THEN 0 ELSE 1 END = 1 + } + end + + it "should handle nil" do + @table = Table.new(:users) + val = Nodes.build_quoted(nil, @table[:active]) + sql = compile Nodes::IsDistinctFrom.new(@table[:name], val) + sql.must_be_like %{ "users"."name" IS NOT NULL } + end + end end end end |