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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_primary_key
assert_equal 'id',@connection.primary_key('ex')
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_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_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('$2'), bind
end
private
def insert(ctx, data)
binds = data.map { |name, value|
[ctx.columns('ex').find { |x| x.name == name }, value]
}
columns = binds.map(&:first).map(&:name)
bind_subs = columns.length.times.map { |x| "$#{x + 1}" }
sql = "INSERT INTO ex (#{columns.join(", ")})
VALUES (#{bind_subs.join(', ')})"
ctx.exec_insert(sql, 'SQL', binds)
end
end
end
end
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