pytype/pytype/datatypes_test.py at master · vlevit/pytype · GitHub

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"""Tests for datatypes.py."""

import argparse

from pytype import datatypes

from pytype.typegraph import cfg

import unittest

class AccessTrackingDictTest(unittest.TestCase):

"""Test AccessTrackingDict."""

def setUp(self):

super().setUp()

self.d = datatypes.AccessTrackingDict({"a": 1, "b": 2})

def test_get(self):

v = self.d["a"]

item, = self.d.accessed_subset.items()

self.assertEqual(item, ("a", 1))

self.assertEqual(v, 1)

def test_set(self):

self.d["a"] = 3

item, = self.d.accessed_subset.items()

self.assertEqual(item, ("a", 1))

self.assertEqual(self.d["a"], 3)

def test_set_new(self):

self.d["c"] = 3

self.assertFalse(self.d.accessed_subset)

def test_del(self):

del self.d["a"]

item, = self.d.accessed_subset.items()

self.assertEqual(item, ("a", 1))

with self.assertRaises(KeyError):

_ = self.d["a"]

def test_repeat_access(self):

self.d["a"] = 3

v = self.d["a"]

item, = self.d.accessed_subset.items()

self.assertEqual(item, ("a", 1))

self.assertEqual(v, 3)

class DatatypesTest(unittest.TestCase):

"""Test datatypes."""

def setUp(self):

super().setUp()

self.prog = cfg.Program()

def test_monitor_dict(self):

d = datatypes.MonitorDict()

changestamp = d.changestamp

var = self.prog.NewVariable()

d["key"] = var

self.assertGreater(d.changestamp, changestamp)

changestamp = d.changestamp

var.AddBinding("data")

self.assertGreater(d.changestamp, changestamp)

changestamp = d.changestamp

var.AddBinding("data") # No change because this is duplicate data

self.assertEqual(d.changestamp, changestamp)

changestamp = d.changestamp

def test_aliasing_dict(self):

d = datatypes.AliasingDict()

# To avoid surprising behavior, we require desired dict functionality to be

# explicitly overridden

with self.assertRaises(NotImplementedError):

d.viewitems()

d.add_alias("alias", "name")

self.assertNotIn("alias", d)

self.assertNotIn("name", d)

var1 = self.prog.NewVariable()

d["alias"] = var1

self.assertIn("name", d)

self.assertIn("alias", d)

self.assertEqual(var1, d["name"])

self.assertEqual(d["name"], d["alias"])

self.assertEqual(d["alias"], d.get("alias"))

self.assertEqual(d["name"], d.get("name"))

self.assertIsNone(d.get("other_name"))

var2 = self.prog.NewVariable()

d["name"] = var2

self.assertEqual(var2, d["name"])

self.assertEqual(d["name"], d["alias"])

def test_aliasing_dict_realiasing(self):

d = datatypes.AliasingDict()

d.add_alias("alias1", "name")

d.add_alias("alias2", "name")

d.add_alias("alias1", "name")

d.add_alias("alias2", "alias1")

d.add_alias("alias1", "alias2")

# Check that the name, alias1, and alias2 still all refer to the same key

var = self.prog.NewVariable()

d["alias1"] = var

self.assertEqual(len(d), 1)

self.assertEqual(var, d["name"])

self.assertEqual(var, d["alias1"])

self.assertEqual(var, d["alias2"])

def test_nonempty_aliasing_dict_realiasing(self):

d = datatypes.AliasingDict()

d.add_alias("alias", "name")

d["name"] = "hello"

d["name2"] = "world"

self.assertEqual("hello", d["alias"])

self.assertEqual("hello", d["name"])

self.assertEqual("world", d["name2"])

d.add_alias("name", "name2", op=lambda x, y: x + " " + y)

self.assertEqual("hello world", d["name"])

self.assertEqual("hello world", d["name2"])

self.assertEqual("hello world", d["alias"])

def test_aliasing_dict_transitive(self):

d = datatypes.AliasingDict()

d.add_alias("alias1", "name")

d.add_alias("alias2", "alias1")

d["name"] = self.prog.NewVariable()

self.assertEqual(len(d), 1)

self.assertEqual(d["name"], d["alias1"])

self.assertEqual(d["alias1"], d["alias2"])

def test_aliasing_dict_value_move(self):

d = datatypes.AliasingDict()

v = self.prog.NewVariable()

d["alias"] = v

d.add_alias("alias", "name")

self.assertEqual(d["name"], v)

self.assertEqual(d["alias"], d["name"])

def test_aliasing_dict_transitive_value_move(self):

d = datatypes.AliasingDict()

d.add_alias("alias2", "name")

v = self.prog.NewVariable()

d["alias1"] = v

d.add_alias("alias1", "alias2")

self.assertEqual(d["name"], v)

self.assertEqual(d["alias2"], d["name"])

self.assertEqual(d["alias1"], d["alias2"])

def test_aliasing_dict_with_union_find(self):

d = datatypes.AliasingDict()

d["alias1"] = "1"

d["alias3"] = "2"

d.add_alias("alias1", "alias2")

d.add_alias("alias4", "alias3")

self.assertEqual(d["alias1"], "1")

self.assertEqual(d["alias2"], "1")

self.assertEqual(d["alias3"], "2")

self.assertEqual(d["alias4"], "2")

d.add_alias("alias1", "alias3", str.__add__)

self.assertEqual(d["alias1"], "12")

self.assertEqual(d["alias2"], "12")

self.assertEqual(d["alias3"], "12")

self.assertEqual(d["alias4"], "12")

d["alias5"] = "34"

d.add_alias("alias5", "alias6")

d.add_alias("alias6", "alias7")

d.add_alias("alias7", "alias8")

self.assertEqual(d["alias5"], "34")

self.assertEqual(d["alias6"], "34")

self.assertEqual(d["alias7"], "34")

self.assertEqual(d["alias8"], "34")

d.add_alias("alias1", "alias8", str.__add__)

for i in range(1, 9):

self.assertEqual(d["alias" + str(i)], "1234")

def test_aliasing_dict_get(self):

d = datatypes.AliasingDict()

d["alias1"] = "1"

d.add_alias("alias1", "alias2")

self.assertEqual(d.get("alias1"), "1")

self.assertEqual(d.get("alias2"), "1")

self.assertEqual(d.get("alias3", "2"), "2")

self.assertIsNone(d.get("alias3"))

def test_add_alias_for_aliasing_monitor_dict(self):

def merge_value(v0, v1, name):

if v0 == v1:

return v0

raise datatypes.AliasingDictConflictError(name)

d = datatypes.AliasingMonitorDict()

d["alias1"] = "1"

d["alias2"] = "1"

self.assertEqual(len(d), 2)

# Merge with same values

d.add_alias("alias1", "alias2", merge_value)

self.assertEqual(len(d), 1)

self.assertEqual(d["alias1"], "1")

self.assertEqual(d["alias2"], "1")

# Merge with different values

d["alias3"] = "2"

with self.assertRaises(datatypes.AliasingDictConflictError):

d.add_alias("alias1", "alias3", merge_value)

# Neither of names has value

d.add_alias("alias5", "alias6", merge_value)

# The first name is in dict

d.add_alias("alias3", "alias4", merge_value)

# The second name is in dict

d.add_alias("alias5", "alias3", merge_value)

self.assertEqual(d["alias3"], "2")

self.assertEqual(d["alias4"], "2")

self.assertEqual(d["alias5"], "2")

self.assertEqual(d["alias6"], "2")

def test_aliasing_monitor_dict_merge(self):

def merge_value(v0, v1, name):

if v0 == v1:

return v0

raise datatypes.AliasingDictConflictError(name)

d1 = datatypes.AliasingMonitorDict()

d1["alias1"] = "1"

d1.add_alias("alias1", "alias2", merge_value)

d2 = datatypes.AliasingMonitorDict()

d2["alias3"] = "1"

d2.add_alias("alias3", "alias4", merge_value)

d1.merge_from(d2, merge_value)

self.assertEqual(d1["alias1"], "1")

self.assertEqual(d1["alias2"], "1")

self.assertEqual(d1["alias3"], "1")

self.assertEqual(d1["alias4"], "1")

self.assertEqual(d1.same_name("alias3", "alias4"), True)

d4 = datatypes.AliasingMonitorDict()

d4["alias2"] = 3

with self.assertRaises(datatypes.AliasingDictConflictError):

d1.merge_from(d4, merge_value)

d3 = datatypes.AliasingMonitorDict()

d3.add_alias("alias2", "alias5", merge_value)

d3["alias5"] = 3

with self.assertRaises(datatypes.AliasingDictConflictError):

d1.merge_from(d3, merge_value)

class ParserWrapperTest(unittest.TestCase):

"""Test parser wrapper."""

def test_group(self):

parser = argparse.ArgumentParser()

wrapper = datatypes.ParserWrapper(parser)

wrapper.add_argument("--foo", dest="foo")

group = wrapper.add_argument_group("test1")

group.add_argument("--bar", dest="bar")

subgroup = wrapper.add_argument_group("test2")

subgroup.add_argument("--baz", dest="baz")

self.assertSetEqual(set(wrapper.actions), {"foo", "bar", "baz"})

if __name__ == "__main__":

unittest.main()

pytype/pytype/datatypes_test.py at master · vlevit/pytype · GitHub

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