aboutsummaryrefslogtreecommitdiffstats
path: root/test/visitors
diff options
context:
space:
mode:
Diffstat (limited to 'test/visitors')
-rw-r--r--test/visitors/test_join_sql.rb35
-rw-r--r--test/visitors/test_oracle.rb111
-rw-r--r--test/visitors/test_postgres.rb17
-rw-r--r--test/visitors/test_to_sql.rb134
4 files changed, 297 insertions, 0 deletions
diff --git a/test/visitors/test_join_sql.rb b/test/visitors/test_join_sql.rb
new file mode 100644
index 0000000000..3dc70d7dd6
--- /dev/null
+++ b/test/visitors/test_join_sql.rb
@@ -0,0 +1,35 @@
+require 'spec_helper'
+
+module Arel
+ module Visitors
+ describe 'the join_sql visitor' do
+ before do
+ @visitor = JoinSql.new Table.engine
+ end
+
+ describe 'inner join' do
+ it 'should visit left if left is a join' do
+ t = Table.new :users
+ join = Nodes::InnerJoin.new t, t, Nodes::On.new(t[:id])
+ j2 = Nodes::InnerJoin.new join, t, Nodes::On.new(t[:id])
+ @visitor.accept(j2).must_be_like %{
+ INNER JOIN "users" ON "users"."id"
+ INNER JOIN "users" ON "users"."id"
+ }
+ end
+ end
+
+ describe 'outer join' do
+ it 'should visit left if left is a join' do
+ t = Table.new :users
+ join = Nodes::OuterJoin.new t, t, Nodes::On.new(t[:id])
+ j2 = Nodes::OuterJoin.new join, t, Nodes::On.new(t[:id])
+ @visitor.accept(j2).must_be_like %{
+ LEFT OUTER JOIN "users" ON "users"."id"
+ LEFT OUTER JOIN "users" ON "users"."id"
+ }
+ end
+ end
+ end
+ end
+end
diff --git a/test/visitors/test_oracle.rb b/test/visitors/test_oracle.rb
new file mode 100644
index 0000000000..8b5732f287
--- /dev/null
+++ b/test/visitors/test_oracle.rb
@@ -0,0 +1,111 @@
+require 'spec_helper'
+
+module Arel
+ module Visitors
+ describe 'the oracle visitor' do
+ before do
+ @visitor = Oracle.new Table.engine
+ end
+
+ it 'modifies order when there is distinct and first value' do
+ # *sigh*
+ select = "DISTINCT foo.id, FIRST_VALUE(projects.name) OVER (foo) AS alias_0__"
+ stmt = Nodes::SelectStatement.new
+ stmt.cores.first.projections << Nodes::SqlLiteral.new(select)
+ stmt.orders << Nodes::SqlLiteral.new('foo')
+ sql = @visitor.accept(stmt)
+ sql.must_be_like %{
+ SELECT #{select} ORDER BY alias_0__
+ }
+ end
+
+ it 'is idempotent with crazy query' do
+ # *sigh*
+ select = "DISTINCT foo.id, FIRST_VALUE(projects.name) OVER (foo) AS alias_0__"
+ stmt = Nodes::SelectStatement.new
+ stmt.cores.first.projections << Nodes::SqlLiteral.new(select)
+ stmt.orders << Nodes::SqlLiteral.new('foo')
+
+ sql = @visitor.accept(stmt)
+ sql2 = @visitor.accept(stmt)
+ check sql.must_equal sql2
+ end
+
+ it 'splits orders with commas' do
+ # *sigh*
+ select = "DISTINCT foo.id, FIRST_VALUE(projects.name) OVER (foo) AS alias_0__"
+ stmt = Nodes::SelectStatement.new
+ stmt.cores.first.projections << Nodes::SqlLiteral.new(select)
+ stmt.orders << Nodes::SqlLiteral.new('foo, bar')
+ sql = @visitor.accept(stmt)
+ sql.must_be_like %{
+ SELECT #{select} ORDER BY alias_0__, alias_1__
+ }
+ end
+
+ describe 'Nodes::SelectStatement' do
+ describe 'limit' do
+ it 'adds a rownum clause' do
+ stmt = Nodes::SelectStatement.new
+ stmt.limit = 10
+ sql = @visitor.accept stmt
+ sql.must_be_like %{ SELECT WHERE ROWNUM <= 10 }
+ end
+
+ it 'is idempotent' do
+ stmt = Nodes::SelectStatement.new
+ stmt.orders << Nodes::SqlLiteral.new('foo')
+ stmt.limit = 10
+ sql = @visitor.accept stmt
+ sql2 = @visitor.accept stmt
+ check sql.must_equal sql2
+ end
+
+ it 'creates a subquery when there is order_by' do
+ stmt = Nodes::SelectStatement.new
+ stmt.orders << Nodes::SqlLiteral.new('foo')
+ stmt.limit = 10
+ sql = @visitor.accept stmt
+ sql.must_be_like %{
+ SELECT * FROM (SELECT ORDER BY foo) WHERE ROWNUM <= 10
+ }
+ end
+
+ it 'creates a subquery when there is DISTINCT' do
+ stmt = Nodes::SelectStatement.new
+ stmt.cores.first.projections << Nodes::SqlLiteral.new('DISTINCT id')
+ stmt.limit = 10
+ sql = @visitor.accept stmt
+ sql.must_be_like %{
+ SELECT * FROM (SELECT DISTINCT id) WHERE ROWNUM <= 10
+ }
+ end
+
+ it 'creates a different subquery when there is an offset' do
+ stmt = Nodes::SelectStatement.new
+ stmt.limit = 10
+ stmt.offset = Nodes::Offset.new(10)
+ sql = @visitor.accept stmt
+ sql.must_be_like %{
+ SELECT * FROM (
+ SELECT raw_sql_.*, rownum raw_rnum_
+ FROM (SELECT ) raw_sql_
+ WHERE rownum <= 20
+ )
+ WHERE raw_rnum_ > 10
+ }
+ end
+
+ it 'is idempotent with different subquery' do
+ stmt = Nodes::SelectStatement.new
+ stmt.limit = 10
+ stmt.offset = Nodes::Offset.new(10)
+ sql = @visitor.accept stmt
+ sql2 = @visitor.accept stmt
+ check sql.must_equal sql2
+ end
+ end
+ end
+ end
+ end
+end
diff --git a/test/visitors/test_postgres.rb b/test/visitors/test_postgres.rb
new file mode 100644
index 0000000000..70b935c185
--- /dev/null
+++ b/test/visitors/test_postgres.rb
@@ -0,0 +1,17 @@
+require 'spec_helper'
+
+module Arel
+ module Visitors
+ describe 'the postgres visitor' do
+ before do
+ @visitor = PostgreSQL.new Table.engine
+ end
+
+ it 'should produce a lock value' do
+ @visitor.accept(Nodes::Lock.new).must_be_like %{
+ FOR UPDATE
+ }
+ end
+ end
+ end
+end
diff --git a/test/visitors/test_to_sql.rb b/test/visitors/test_to_sql.rb
new file mode 100644
index 0000000000..f7455d7fa3
--- /dev/null
+++ b/test/visitors/test_to_sql.rb
@@ -0,0 +1,134 @@
+require 'spec_helper'
+
+module Arel
+ module Visitors
+ describe 'the to_sql visitor' do
+ before do
+ @visitor = ToSql.new Table.engine
+ @attr = Table.new(:users)[:id]
+ end
+
+ describe 'equality' do
+ it 'should handle false' do
+ sql = @visitor.accept Nodes::Equality.new(false, false)
+ sql.must_be_like %{ 'f' = 'f' }
+ end
+
+ it 'should use the column to quote' do
+ table = Table.new(:users)
+ sql = @visitor.accept Nodes::Equality.new(table[:id], '1-fooo')
+ sql.must_be_like %{ "users"."id" = 1 }
+ end
+ end
+
+ it "should visit_DateTime" do
+ @visitor.accept DateTime.now
+ end
+
+ it "should visit_Float" do
+ @visitor.accept 2.14
+ end
+
+ it "should visit_Hash" do
+ @visitor.accept({:a => 1})
+ end
+
+ it "should visit_BigDecimal" do
+ @visitor.accept BigDecimal.new('2.14')
+ end
+
+ it "should visit_Date" do
+ @visitor.accept Date.today
+ end
+
+ it "should visit_Arel_Nodes_And" do
+ node = Nodes::And.new @attr.eq(10), @attr.eq(11)
+ @visitor.accept(node).must_be_like %{
+ "users"."id" = 10 AND "users"."id" = 11
+ }
+ end
+
+ it "should visit_Arel_Nodes_Or" do
+ node = Nodes::Or.new @attr.eq(10), @attr.eq(11)
+ @visitor.accept(node).must_be_like %{
+ "users"."id" = 10 OR "users"."id" = 11
+ }
+ end
+
+ it "should visit visit_Arel_Attributes_Time" do
+ attr = Attributes::Time.new(@attr.relation, @attr.name, @attr.column)
+ @visitor.accept attr
+ end
+
+ it "should visit_TrueClass" do
+ test = @attr.eq(true)
+ test.left.column.type = :boolean
+ @visitor.accept(test).must_be_like %{ "users"."id" = 't' }
+ end
+
+ describe "Nodes::Ordering" do
+ it "should know how to visit" do
+ node = @attr.desc
+ @visitor.accept(node).must_be_like %{
+ "users"."id" DESC
+ }
+ end
+ end
+
+ describe "Nodes::In" do
+ it "should know how to visit" do
+ node = @attr.in [1, 2, 3]
+ @visitor.accept(node).must_be_like %{
+ "users"."id" IN (1, 2, 3)
+ }
+ end
+
+ it "should turn empty right to NULL" do
+ node = @attr.in []
+ @visitor.accept(node).must_be_like %{
+ "users"."id" IN (NULL)
+ }
+ end
+
+ it 'can handle two dot ranges' do
+ node = @attr.in 1..3
+ @visitor.accept(node).must_be_like %{
+ "users"."id" BETWEEN 1 AND 3
+ }
+ end
+
+ it 'can handle three dot ranges' do
+ node = @attr.in 1...3
+ @visitor.accept(node).must_be_like %{
+ "users"."id" >= 1 AND "users"."id" < 3
+ }
+ end
+
+ it 'uses the same column for escaping values' do
+ visitor = Class.new(ToSql) do
+ attr_accessor :expected
+
+ def quote value, column = nil
+ raise unless column == expected
+ super
+ end
+ end
+ in_node = Nodes::In.new @attr, %w{ a b c }
+ visitor = visitor.new(Table.engine)
+ visitor.expected = @attr.column
+ visitor.accept(in_node).must_equal %("users"."id" IN ('a', 'b', 'c'))
+ end
+ end
+
+ describe 'Equality' do
+ it "should escape strings" do
+ test = @attr.eq 'Aaron Patterson'
+ test.left.column.type = :string
+ @visitor.accept(test).must_be_like %{
+ "users"."id" = 'Aaron Patterson'
+ }
+ end
+ end
+ end
+ end
+end
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-23 23:18:09 +0000