# frozen_string_literal: true
require_relative "../helper"
module Arel
module Visitors
class PostgresTest < Arel::Spec
before do
@visitor = PostgreSQL.new Table.engine.connection
@table = Table.new(:users)
@attr = @table[:id]
end
def compile(node)
@visitor.accept(node, Collectors::SQLString.new).value
end
describe "locking" do
it "defaults to FOR UPDATE" do
compile(Nodes::Lock.new(Arel.sql("FOR UPDATE"))).must_be_like %{
FOR UPDATE
}
end
it "allows a custom string to be used as a lock" do
node = Nodes::Lock.new(Arel.sql("FOR SHARE"))
compile(node).must_be_like %{
FOR SHARE
}
end
end
it "should escape LIMIT" do
sc = Arel::Nodes::SelectStatement.new
sc.limit = Nodes::Limit.new(Nodes.build_quoted("omg"))
sc.cores.first.projections << Arel.sql("DISTINCT ON")
sc.orders << Arel.sql("xyz")
sql = compile(sc)
assert_match(/LIMIT 'omg'/, sql)
assert_equal 1, sql.scan(/LIMIT/).length, "should have one limit"
end
it "should support DISTINCT ON" do
core = Arel::Nodes::SelectCore.new
core.set_quantifier = Arel::Nodes::DistinctOn.new(Arel.sql("aaron"))
assert_match "DISTINCT ON ( aaron )", compile(core)
end
it "should support DISTINCT" do
core = Arel::Nodes::SelectCore.new
core.set_quantifier = Arel::Nodes::Distinct.new
assert_equal "SELECT DISTINCT", compile(core)
end
it "encloses LATERAL queries in parens" do
subquery = @table.project(:id).where(@table[:name].matches("foo%"))
compile(subquery.lateral).must_be_like %{
LATERAL (SELECT id FROM "users" WHERE "users"."name" ILIKE 'foo%')
}
end
it "produces LATERAL queries with alias" do
subquery = @table.project(:id).where(@table[:name].matches("foo%"))
compile(subquery.lateral("bar")).must_be_like %{
LATERAL (SELECT id FROM "users" WHERE "users"."name" ILIKE 'foo%') bar
}
end
describe "Nodes::Matches" do
it "should know how to visit" do
node = @table[:name].matches("foo%")
node.must_be_kind_of Nodes::Matches
node.case_sensitive.must_equal(false)
compile(node).must_be_like %{
"users"."name" ILIKE 'foo%'
}
end
it "should know how to visit case sensitive" do
node = @table[:name].matches("foo%", nil, true)
node.case_sensitive.must_equal(true)
compile(node).must_be_like %{
"users"."name" LIKE 'foo%'
}
end
it "can handle ESCAPE" do
node = @table[:name].matches("foo!%", "!")
compile(node).must_be_like %{
"users"."name" ILIKE 'foo!%' ESCAPE '!'
}
end
it "can handle subqueries" do
subquery = @table.project(:id).where(@table[:name].matches("foo%"))
node = @attr.in subquery
compile(node).must_be_like %{
"users"."id" IN (SELECT id FROM "users" WHERE "users"."name" ILIKE 'foo%')
}
end
end
describe "Nodes::DoesNotMatch" do
it "should know how to visit" do
node = @table[:name].does_not_match("foo%")
node.must_be_kind_of Nodes::DoesNotMatch
node.case_sensitive.must_equal(false)
compile(node).must_be_like %{
"users"."name" NOT ILIKE 'foo%'
}
end
it "should know how to visit case sensitive" do
node = @table[:name].does_not_match("foo%", nil, true)
node.case_sensitive.must_equal(true)
compile(node).must_be_like %{
"users"."name" NOT LIKE 'foo%'
}
end
it "can handle ESCAPE" do
node = @table[:name].does_not_match("foo!%", "!")
compile(node).must_be_like %{
"users"."name" NOT ILIKE 'foo!%' ESCAPE '!'
}
end
it "can handle subqueries" do
subquery = @table.project(:id).where(@table[:name].does_not_match("foo%"))
node = @attr.in subquery
compile(node).must_be_like %{
"users"."id" IN (SELECT id FROM "users" WHERE "users"."name" NOT ILIKE 'foo%')
}
end
end
describe "Nodes::Regexp" do
it "should know how to visit" do
node = @table[:name].matches_regexp("foo.*")
node.must_be_kind_of Nodes::Regexp
node.case_sensitive.must_equal(true)
compile(node).must_be_like %{
"users"."name" ~ 'foo.*'
}
end
it "can handle case insensitive" do
node = @table[:name].matches_regexp("foo.*", false)
node.must_be_kind_of Nodes::Regexp
node.case_sensitive.must_equal(false)
compile(node).must_be_like %{
"users"."name" ~* 'foo.*'
}
end
it "can handle subqueries" do
subquery = @table.project(:id).where(@table[:name].matches_regexp("foo.*"))
node = @attr.in subquery
compile(node).must_be_like %{
"users"."id" IN (SELECT id FROM "users" WHERE "users"."name" ~ 'foo.*')
}
end
end
describe "Nodes::NotRegexp" do
it "should know how to visit" do
node = @table[:name].does_not_match_regexp("foo.*")
node.must_be_kind_of Nodes::NotRegexp
node.case_sensitive.must_equal(true)
compile(node).must_be_like %{
"users"."name" !~ 'foo.*'
}
end
it "can handle case insensitive" do
node = @table[:name].does_not_match_regexp("foo.*", false)
node.case_sensitive.must_equal(false)
compile(node).must_be_like %{
"users"."name" !~* 'foo.*'
}
end
it "can handle subqueries" do
subquery = @table.project(:id).where(@table[:name].does_not_match_regexp("foo.*"))
node = @attr.in subquery
compile(node).must_be_like %{
"users"."id" IN (SELECT id FROM "users" WHERE "users"."name" !~ 'foo.*')
}
end
end
describe "Nodes::BindParam" do
it "increments each bind param" do
query = @table[:name].eq(Arel::Nodes::BindParam.new(1))
.and(@table[:id].eq(Arel::Nodes::BindParam.new(1)))
compile(query).must_be_like %{
"users"."name" = $1 AND "users"."id" = $2
}
end
end
describe "Nodes::Cube" do
it "should know how to visit with array arguments" do
node = Arel::Nodes::Cube.new([@table[:name], @table[:bool]])
compile(node).must_be_like %{
CUBE( "users"."name", "users"."bool" )
}
end
it "should know how to visit with CubeDimension Argument" do
dimensions = Arel::Nodes::GroupingElement.new([@table[:name], @table[:bool]])
node = Arel::Nodes::Cube.new(dimensions)
compile(node).must_be_like %{
CUBE( "users"."name", "users"."bool" )
}
end
it "should know how to generate paranthesis when supplied with many Dimensions" do
dim1 = Arel::Nodes::GroupingElement.new(@table[:name])
dim2 = Arel::Nodes::GroupingElement.new([@table[:bool], @table[:created_at]])
node = Arel::Nodes::Cube.new([dim1, dim2])
compile(node).must_be_like %{
CUBE( ( "users"."name" ), ( "users"."bool", "users"."created_at" ) )
}
end
end
describe "Nodes::GroupingSet" do
it "should know how to visit with array arguments" do
node = Arel::Nodes::GroupingSet.new([@table[:name], @table[:bool]])
compile(node).must_be_like %{
GROUPING SET( "users"."name", "users"."bool" )
}
end
it "should know how to visit with CubeDimension Argument" do
group = Arel::Nodes::GroupingElement.new([@table[:name], @table[:bool]])
node = Arel::Nodes::GroupingSet.new(group)
compile(node).must_be_like %{
GROUPING SET( "users"."name", "users"."bool" )
}
end
it "should know how to generate paranthesis when supplied with many Dimensions" do
group1 = Arel::Nodes::GroupingElement.new(@table[:name])
group2 = Arel::Nodes::GroupingElement.new([@table[:bool], @table[:created_at]])
node = Arel::Nodes::GroupingSet.new([group1, group2])
compile(node).must_be_like %{
GROUPING SET( ( "users"."name" ), ( "users"."bool", "users"."created_at" ) )
}
end
end
describe "Nodes::RollUp" do
it "should know how to visit with array arguments" do
node = Arel::Nodes::RollUp.new([@table[:name], @table[:bool]])
compile(node).must_be_like %{
ROLLUP( "users"."name", "users"."bool" )
}
end
it "should know how to visit with CubeDimension Argument" do
group = Arel::Nodes::GroupingElement.new([@table[:name], @table[:bool]])
node = Arel::Nodes::RollUp.new(group)
compile(node).must_be_like %{
ROLLUP( "users"."name", "users"."bool" )
}
end
it "should know how to generate paranthesis when supplied with many Dimensions" do
group1 = Arel::Nodes::GroupingElement.new(@table[:name])
group2 = Arel::Nodes::GroupingElement.new([@table[:bool], @table[:created_at]])
node = Arel::Nodes::RollUp.new([group1, group2])
compile(node).must_be_like %{
ROLLUP( ( "users"."name" ), ( "users"."bool", "users"."created_at" ) )
}
end
end
end
end
end