/usr/lib/python3/dist-packages/postgresql/test/test_lib.py is in python3-postgresql 1.1.0-2build2.
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# .test.test_lib - test the .lib package
##
import sys
import os
import unittest
import tempfile
from .. import exceptions as pg_exc
from .. import lib as pg_lib
from .. import sys as pg_sys
from ..temporal import pg_tmp
ilf = """
preface
[sym]
select 1
[sym_ref]
*[sym]
[sym_ref_trail]
*[sym] WHERE FALSE
[sym_first::first]
select 1
[sym_rows::rows]
select 1
[sym_chunks::chunks]
select 1
[sym_declare::declare]
select 1
[sym_const:const:first]
select 1
[sym_const_rows:const:rows]
select 1
[sym_const_chunks:const:chunks]
select 1
[sym_const_column:const:column]
select 1
[sym_const_ddl:const:]
create temp table sym_const_dll (i int);
[sym_preload:preload:first]
select 1
[sym_proc:proc]
test_ilf_proc(int)
[sym_srf_proc:proc]
test_ilf_srf_proc(int)
[&sym_reference]
SELECT 'SELECT 1';
[&sym_reference_params]
SELECT 'SELECT ' || $1::text;
[&sym_reference_first::first]
SELECT 'SELECT 1::int4';
[&sym_reference_const:const:first]
SELECT 'SELECT 1::int4';
[&sym_reference_proc:proc]
SELECT 'test_ilf_proc(int)'::text
"""
class test_lib(unittest.TestCase):
# NOTE: Module libraries are implicitly tested
# in postgresql.test.test_driver; much functionality
# depends on the `sys` library.
def _testILF(self, lib):
self.assertTrue('preface' in lib.preface)
db.execute("CREATE OR REPLACE FUNCTION test_ilf_proc(int) RETURNS int language sql as 'select $1';")
db.execute("CREATE OR REPLACE FUNCTION test_ilf_srf_proc(int) RETURNS SETOF int language sql as 'select $1';")
b = pg_lib.Binding(db, lib)
self.assertEqual(b.sym_ref(), [(1,)])
self.assertEqual(b.sym_ref_trail(), [])
self.assertEqual(b.sym(), [(1,)])
self.assertEqual(b.sym_first(), 1)
self.assertEqual(list(b.sym_rows()), [(1,)])
self.assertEqual([list(x) for x in b.sym_chunks()], [[(1,)]])
c = b.sym_declare()
self.assertEqual(c.read(), [(1,)])
c.seek(0)
self.assertEqual(c.read(), [(1,)])
self.assertEqual(b.sym_const, 1)
self.assertEqual(b.sym_const_column, [1])
self.assertEqual(b.sym_const_rows, [(1,)])
self.assertEqual(b.sym_const_chunks, [[(1,)]])
self.assertEqual(b.sym_const_ddl, ('CREATE TABLE', None))
self.assertEqual(b.sym_preload(), 1)
# now stored procs
self.assertEqual(b.sym_proc(2,), 2)
self.assertEqual(list(b.sym_srf_proc(2,)), [2])
self.assertRaises(AttributeError, getattr, b, 'LIES')
# reference symbols
self.assertEqual(b.sym_reference()(), [(1,)])
self.assertEqual(b.sym_reference_params('1::int')(), [(1,)])
self.assertEqual(b.sym_reference_params("'foo'::text")(), [('foo',)])
self.assertEqual(b.sym_reference_first()(), 1)
self.assertEqual(b.sym_reference_const(), 1)
self.assertEqual(b.sym_reference_proc()(2,), 2)
@pg_tmp
def testILF_from_lines(self):
lib = pg_lib.ILF.from_lines([l + '\n' for l in ilf.splitlines()])
self._testILF(lib)
@pg_tmp
def testILF_from_file(self):
f = tempfile.NamedTemporaryFile(
delete = False, mode = 'w', encoding = 'utf-8'
)
n = f.name
try:
f.write(ilf)
f.flush()
f.seek(0)
lib = pg_lib.ILF.open(n, encoding = 'utf-8')
self._testILF(lib)
f.close()
finally:
# so annoying...
os.unlink(n)
@pg_tmp
def testLoad(self):
# gotta test it in the cwd...
pid = os.getpid()
frag = 'temp' + str(pid)
fn = 'lib' + frag + '.sql'
try:
with open(fn, 'w') as f:
f.write("[foo]\nSELECT 1")
pg_sys.libpath.insert(0, os.path.curdir)
l = pg_lib.load(frag)
b = pg_lib.Binding(db, l)
self.assertEqual(b.foo(), [(1,)])
finally:
os.remove(fn)
@pg_tmp
def testCategory(self):
lib = pg_lib.ILF.from_lines([l + '\n' for l in ilf.splitlines()])
# XXX: evil, careful..
lib._name = 'name'
c = pg_lib.Category(lib)
c(db)
self.assertEqual(db.name.sym_first(), 1)
c = pg_lib.Category(renamed = lib)
c(db)
self.assertEqual(db.renamed.sym_first(), 1)
@pg_tmp
def testCategoryAliases(self):
lib = pg_lib.ILF.from_lines([l + '\n' for l in ilf.splitlines()])
# XXX: evil, careful..
lib._name = 'name'
c = pg_lib.Category(lib, renamed = lib)
c(db)
self.assertEqual(db.name.sym_first(), 1)
self.assertEqual(db.renamed.sym_first(), 1)
if __name__ == '__main__':
unittest.main()
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