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# frozen_string_literal: true
require_relative "helper"
module Arel
class TableTest < Arel::Spec
before do
@relation = Table.new(:users)
end
it "should create join nodes" do
join = @relation.create_string_join "foo"
assert_kind_of Arel::Nodes::StringJoin, join
assert_equal "foo", join.left
end
it "should create join nodes" do
join = @relation.create_join "foo", "bar"
assert_kind_of Arel::Nodes::InnerJoin, join
assert_equal "foo", join.left
assert_equal "bar", join.right
end
it "should create join nodes with a klass" do
join = @relation.create_join "foo", "bar", Arel::Nodes::FullOuterJoin
assert_kind_of Arel::Nodes::FullOuterJoin, join
assert_equal "foo", join.left
assert_equal "bar", join.right
end
it "should create join nodes with a klass" do
join = @relation.create_join "foo", "bar", Arel::Nodes::OuterJoin
assert_kind_of Arel::Nodes::OuterJoin, join
assert_equal "foo", join.left
assert_equal "bar", join.right
end
it "should create join nodes with a klass" do
join = @relation.create_join "foo", "bar", Arel::Nodes::RightOuterJoin
assert_kind_of Arel::Nodes::RightOuterJoin, join
assert_equal "foo", join.left
assert_equal "bar", join.right
end
it "should return an insert manager" do
im = @relation.compile_insert "VALUES(NULL)"
assert_kind_of Arel::InsertManager, im
im.into Table.new(:users)
assert_equal "INSERT INTO \"users\" VALUES(NULL)", im.to_sql
end
describe "skip" do
it "should add an offset" do
sm = @relation.skip 2
sm.to_sql.must_be_like "SELECT FROM \"users\" OFFSET 2"
end
end
describe "having" do
it "adds a having clause" do
mgr = @relation.having @relation[:id].eq(10)
mgr.to_sql.must_be_like %{
SELECT FROM "users" HAVING "users"."id" = 10
}
end
end
describe "backwards compat" do
describe "join" do
it "noops on nil" do
mgr = @relation.join nil
mgr.to_sql.must_be_like %{ SELECT FROM "users" }
end
it "raises EmptyJoinError on empty" do
assert_raises(EmptyJoinError) do
@relation.join ""
end
end
it "takes a second argument for join type" do
right = @relation.alias
predicate = @relation[:id].eq(right[:id])
mgr = @relation.join(right, Nodes::OuterJoin).on(predicate)
mgr.to_sql.must_be_like %{
SELECT FROM "users"
LEFT OUTER JOIN "users" "users_2"
ON "users"."id" = "users_2"."id"
}
end
end
describe "join" do
it "creates an outer join" do
right = @relation.alias
predicate = @relation[:id].eq(right[:id])
mgr = @relation.outer_join(right).on(predicate)
mgr.to_sql.must_be_like %{
SELECT FROM "users"
LEFT OUTER JOIN "users" "users_2"
ON "users"."id" = "users_2"."id"
}
end
end
end
describe "group" do
it "should create a group" do
manager = @relation.group @relation[:id]
manager.to_sql.must_be_like %{
SELECT FROM "users" GROUP BY "users"."id"
}
end
end
describe "alias" do
it "should create a node that proxies to a table" do
node = @relation.alias
node.name.must_equal "users_2"
node[:id].relation.must_equal node
end
end
describe "new" do
it "should accept a hash" do
rel = Table.new :users, as: "foo"
rel.table_alias.must_equal "foo"
end
it "ignores as if it equals name" do
rel = Table.new :users, as: "users"
rel.table_alias.must_be_nil
end
end
describe "order" do
it "should take an order" do
manager = @relation.order "foo"
manager.to_sql.must_be_like %{ SELECT FROM "users" ORDER BY foo }
end
end
describe "take" do
it "should add a limit" do
manager = @relation.take 1
manager.project Nodes::SqlLiteral.new "*"
manager.to_sql.must_be_like %{ SELECT * FROM "users" LIMIT 1 }
end
end
describe "project" do
it "can project" do
manager = @relation.project Nodes::SqlLiteral.new "*"
manager.to_sql.must_be_like %{ SELECT * FROM "users" }
end
it "takes multiple parameters" do
manager = @relation.project Nodes::SqlLiteral.new("*"), Nodes::SqlLiteral.new("*")
manager.to_sql.must_be_like %{ SELECT *, * FROM "users" }
end
end
describe "where" do
it "returns a tree manager" do
manager = @relation.where @relation[:id].eq 1
manager.project @relation[:id]
manager.must_be_kind_of TreeManager
manager.to_sql.must_be_like %{
SELECT "users"."id"
FROM "users"
WHERE "users"."id" = 1
}
end
end
it "should have a name" do
@relation.name.must_equal "users"
end
it "should have a table name" do
@relation.table_name.must_equal "users"
end
describe "[]" do
describe "when given a Symbol" do
it "manufactures an attribute if the symbol names an attribute within the relation" do
column = @relation[:id]
column.name.must_equal :id
end
end
end
describe "equality" do
it "is equal with equal ivars" do
relation1 = Table.new(:users)
relation1.table_alias = "zomg"
relation2 = Table.new(:users)
relation2.table_alias = "zomg"
array = [relation1, relation2]
assert_equal 1, array.uniq.size
end
it "is not equal with different ivars" do
relation1 = Table.new(:users)
relation1.table_alias = "zomg"
relation2 = Table.new(:users)
relation2.table_alias = "zomg2"
array = [relation1, relation2]
assert_equal 2, array.uniq.size
end
end
end
end
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