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# encoding: utf-8
require "cases/helper"
module ActiveRecord
module ConnectionAdapters
class PostgreSQLAdapterTest < ActiveRecord::TestCase
def setup
@connection = ActiveRecord::Base.connection
@connection.exec_query('drop table if exists ex')
@connection.exec_query('create table ex(id serial primary key, number integer, data character varying(255))')
end
def test_valid_column
column = @connection.column('ex').find { |col| col.name == 'id' }
assert @connection.valid_type?(column.type)
end
def test_invalid_column
assert !@connection.valid_type?(:foobar)
end
def test_primary_key
assert_equal 'id', @connection.primary_key('ex')
end
def test_primary_key_works_tables_containing_capital_letters
assert_equal 'id', @connection.primary_key('CamelCase')
end
def test_non_standard_primary_key
@connection.exec_query('drop table if exists ex')
@connection.exec_query('create table ex(data character varying(255) primary key)')
assert_equal 'data', @connection.primary_key('ex')
end
def test_primary_key_returns_nil_for_no_pk
@connection.exec_query('drop table if exists ex')
@connection.exec_query('create table ex(id integer)')
assert_nil @connection.primary_key('ex')
end
def test_primary_key_raises_error_if_table_not_found
assert_raises(ActiveRecord::StatementInvalid) do
@connection.primary_key('unobtainium')
end
end
def test_insert_sql_with_proprietary_returning_clause
id = @connection.insert_sql("insert into ex (number) values(5150)", nil, "number")
assert_equal "5150", id
end
def test_insert_sql_with_quoted_schema_and_table_name
id = @connection.insert_sql('insert into "public"."ex" (number) values(5150)')
expect = @connection.query('select max(id) from ex').first.first
assert_equal expect, id
end
def test_insert_sql_with_no_space_after_table_name
id = @connection.insert_sql("insert into ex(number) values(5150)")
expect = @connection.query('select max(id) from ex').first.first
assert_equal expect, id
end
def test_insert_sql_with_returning_disabled
connection = connection_without_insert_returning
id = connection.insert_sql("insert into postgresql_partitioned_table_parent (number) VALUES (1)")
expect = connection.query('select max(id) from postgresql_partitioned_table_parent').first.first
assert_equal expect, id
end
def test_exec_insert_with_returning_disabled
connection = connection_without_insert_returning
result = connection.exec_insert("insert into postgresql_partitioned_table_parent (number) VALUES (1)", nil, [], 'id', 'postgresql_partitioned_table_parent_id_seq')
expect = connection.query('select max(id) from postgresql_partitioned_table_parent').first.first
assert_equal expect, result.rows.first.first
end
def test_exec_insert_with_returning_disabled_and_no_sequence_name_given
connection = connection_without_insert_returning
result = connection.exec_insert("insert into postgresql_partitioned_table_parent (number) VALUES (1)", nil, [], 'id')
expect = connection.query('select max(id) from postgresql_partitioned_table_parent').first.first
assert_equal expect, result.rows.first.first
end
def test_sql_for_insert_with_returning_disabled
connection = connection_without_insert_returning
result = connection.sql_for_insert('sql', nil, nil, nil, 'binds')
assert_equal ['sql', 'binds'], result
end
def test_serial_sequence
assert_equal 'public.accounts_id_seq',
@connection.serial_sequence('accounts', 'id')
assert_raises(ActiveRecord::StatementInvalid) do
@connection.serial_sequence('zomg', 'id')
end
end
def test_default_sequence_name
assert_equal 'accounts_id_seq',
@connection.default_sequence_name('accounts', 'id')
assert_equal 'accounts_id_seq',
@connection.default_sequence_name('accounts')
end
def test_default_sequence_name_bad_table
assert_equal 'zomg_id_seq',
@connection.default_sequence_name('zomg', 'id')
assert_equal 'zomg_id_seq',
@connection.default_sequence_name('zomg')
end
def test_pk_and_sequence_for
pk, seq = @connection.pk_and_sequence_for('ex')
assert_equal 'id', pk
assert_equal @connection.default_sequence_name('ex', 'id'), seq
end
def test_pk_and_sequence_for_with_non_standard_primary_key
@connection.exec_query('drop table if exists ex')
@connection.exec_query('create table ex(code serial primary key)')
pk, seq = @connection.pk_and_sequence_for('ex')
assert_equal 'code', pk
assert_equal @connection.default_sequence_name('ex', 'code'), seq
end
def test_pk_and_sequence_for_returns_nil_if_no_seq
@connection.exec_query('drop table if exists ex')
@connection.exec_query('create table ex(id integer primary key)')
assert_nil @connection.pk_and_sequence_for('ex')
end
def test_pk_and_sequence_for_returns_nil_if_no_pk
@connection.exec_query('drop table if exists ex')
@connection.exec_query('create table ex(id integer)')
assert_nil @connection.pk_and_sequence_for('ex')
end
def test_pk_and_sequence_for_returns_nil_if_table_not_found
assert_nil @connection.pk_and_sequence_for('unobtainium')
end
def test_exec_insert_number
insert(@connection, 'number' => 10)
result = @connection.exec_query('SELECT number FROM ex WHERE number = 10')
assert_equal 1, result.rows.length
assert_equal "10", result.rows.last.last
end
def test_exec_insert_string
str = 'いただきます!'
insert(@connection, 'number' => 10, 'data' => str)
result = @connection.exec_query('SELECT number, data FROM ex WHERE number = 10')
value = result.rows.last.last
assert_equal str, value
end
def test_table_alias_length
assert_nothing_raised do
@connection.table_alias_length
end
end
def test_exec_no_binds
result = @connection.exec_query('SELECT id, data FROM ex')
assert_equal 0, result.rows.length
assert_equal 2, result.columns.length
assert_equal %w{ id data }, result.columns
string = @connection.quote('foo')
@connection.exec_query("INSERT INTO ex (id, data) VALUES (1, #{string})")
result = @connection.exec_query('SELECT id, data FROM ex')
assert_equal 1, result.rows.length
assert_equal 2, result.columns.length
assert_equal [['1', 'foo']], result.rows
end
def test_exec_with_binds
string = @connection.quote('foo')
@connection.exec_query("INSERT INTO ex (id, data) VALUES (1, #{string})")
result = @connection.exec_query(
'SELECT id, data FROM ex WHERE id = $1', nil, [[nil, 1]])
assert_equal 1, result.rows.length
assert_equal 2, result.columns.length
assert_equal [['1', 'foo']], result.rows
end
def test_exec_typecasts_bind_vals
string = @connection.quote('foo')
@connection.exec_query("INSERT INTO ex (id, data) VALUES (1, #{string})")
column = @connection.columns('ex').find { |col| col.name == 'id' }
result = @connection.exec_query(
'SELECT id, data FROM ex WHERE id = $1', nil, [[column, '1-fuu']])
assert_equal 1, result.rows.length
assert_equal 2, result.columns.length
assert_equal [['1', 'foo']], result.rows
end
def test_substitute_at
bind = @connection.substitute_at(nil, 0)
assert_equal Arel.sql('$1'), bind
bind = @connection.substitute_at(nil, 1)
assert_equal Arel.sql('$2'), bind
end
def test_partial_index
@connection.add_index 'ex', %w{ id number }, :name => 'partial', :where => "number > 100"
index = @connection.indexes('ex').find { |idx| idx.name == 'partial' }
assert_equal "(number > 100)", index.where
end
def test_distinct_zero_orders
assert_equal "DISTINCT posts.id",
@connection.distinct("posts.id", [])
end
def test_distinct_one_order
assert_equal "DISTINCT posts.id, posts.created_at AS alias_0",
@connection.distinct("posts.id", ["posts.created_at desc"])
end
def test_distinct_few_orders
assert_equal "DISTINCT posts.id, posts.created_at AS alias_0, posts.position AS alias_1",
@connection.distinct("posts.id", ["posts.created_at desc", "posts.position asc"])
end
def test_distinct_blank_not_nil_orders
assert_equal "DISTINCT posts.id, posts.created_at AS alias_0",
@connection.distinct("posts.id", ["posts.created_at desc", "", " "])
end
def test_distinct_with_arel_order
order = Object.new
def order.to_sql
"posts.created_at desc"
end
assert_equal "DISTINCT posts.id, posts.created_at AS alias_0",
@connection.distinct("posts.id", [order])
end
def test_distinct_with_nulls
assert_equal "DISTINCT posts.title, posts.updater_id AS alias_0", @connection.distinct("posts.title", ["posts.updater_id desc nulls first"])
assert_equal "DISTINCT posts.title, posts.updater_id AS alias_0", @connection.distinct("posts.title", ["posts.updater_id desc nulls last"])
end
private
def insert(ctx, data)
binds = data.map { |name, value|
[ctx.columns('ex').find { |x| x.name == name }, value]
}
columns = binds.map(&:first).map(&:name)
bind_subs = columns.length.times.map { |x| "$#{x + 1}" }
sql = "INSERT INTO ex (#{columns.join(", ")})
VALUES (#{bind_subs.join(', ')})"
ctx.exec_insert(sql, 'SQL', binds)
end
def connection_without_insert_returning
ActiveRecord::Base.postgresql_connection(ActiveRecord::Base.configurations['arunit'].merge(:insert_returning => false))
end
end
end
end
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