Files
mongo/buildscripts/idl/tests/test_generator.py
Alex Li 915b84c819 SERVER-81119 Add support for is_view field in IDL types (#18623)
GitOrigin-RevId: f283bbeb8710a57d68d1acf457fd4aa5c61dd0aa
2024-02-03 03:11:18 +00:00

512 lines
19 KiB
Python

#!/usr/bin/env python3
#
# Copyright (C) 2018-present MongoDB, Inc.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the Server Side Public License, version 1,
# as published by MongoDB, Inc.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# Server Side Public License for more details.
#
# You should have received a copy of the Server Side Public License
# along with this program. If not, see
# <http://www.mongodb.com/licensing/server-side-public-license>.
#
# As a special exception, the copyright holders give permission to link the
# code of portions of this program with the OpenSSL library under certain
# conditions as described in each individual source file and distribute
# linked combinations including the program with the OpenSSL library. You
# must comply with the Server Side Public License in all respects for
# all of the code used other than as permitted herein. If you modify file(s)
# with this exception, you may extend this exception to your version of the
# file(s), but you are not obligated to do so. If you do not wish to do so,
# delete this exception statement from your version. If you delete this
# exception statement from all source files in the program, then also delete
# it in the license file.
#
"""
Test cases for IDL Generator.
This file exists to verify code coverage for the generator.py file. To run code coverage, run in the
idl base directory:
$ coverage run run_tests.py && coverage html
"""
import os
import unittest
from textwrap import dedent
# import package so that it works regardless of whether we run as a module or file
if __package__ is None:
import sys
sys.path.append(os.path.dirname(os.path.abspath(__file__)))
from context import idl
import testcase
else:
from .context import idl
from . import testcase
class TestGenerator(testcase.IDLTestcase):
"""Test the IDL Generator."""
output_suffix = "_codecoverage_gen"
idl_files_to_test = ["unittest", "unittest_import"]
@property
def _src_dir(self):
"""Get the directory of the src folder."""
base_dir = os.path.dirname(
os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__)))))
return os.path.join(
base_dir,
'src',
)
@property
def _idl_dir(self):
"""Get the directory of the idl folder."""
return os.path.join(self._src_dir, 'mongo', 'idl')
def tearDown(self) -> None:
"""Cleanup resources created by tests."""
for idl_file in self.idl_files_to_test:
for ext in ["h", "cpp"]:
file_path = os.path.join(self._idl_dir, f"{idl_file}{self.output_suffix}.{ext}")
if os.path.exists(file_path):
os.remove(file_path)
def test_compile(self):
# type: () -> None
"""Exercise the code generator so code coverage can be measured."""
args = idl.compiler.CompilerArgs()
args.output_suffix = self.output_suffix
args.import_directories = [self._src_dir]
unittest_idl_file = os.path.join(self._idl_dir, f'{self.idl_files_to_test[0]}.idl')
if not os.path.exists(unittest_idl_file):
unittest.skip(
"Skipping IDL Generator testing since %s could not be found." % (unittest_idl_file))
return
for idl_file in self.idl_files_to_test:
args.input_file = os.path.join(self._idl_dir, f'{idl_file}.idl')
self.assertTrue(idl.compiler.compile_idl(args))
def test_enum_non_const(self):
# type: () -> None
"""Validate enums are not marked as const in getters."""
header, _ = self.assert_generate("""
types:
serialization_context:
bson_serialization_type: any
description: foo
cpp_type: foo
internal_only: true
is_view: false
enums:
StringEnum:
description: "An example string enum"
type: string
values:
s0: "zero"
s1: "one"
s2: "two"
structs:
one_string_enum:
description: mock
fields:
value: StringEnum
""")
# Look for the getter.
# Make sure the getter is marked as const.
# Make sure the return type is not marked as const by validating the getter marked as const
# is the only occurrence of the word "const".
header_lines = header.split('\n')
found = False
for header_line in header_lines:
if header_line.find("getValue") > 0 \
and header_line.find("const {") > 0 \
and header_line.find("const {") == header_line.find("const"):
found = True
self.assertTrue(found, "Bad Header: " + header)
def test_custom_array_type_function_serialization(self) -> None:
"""Test the function based serialization codegen for array containing custom types."""
_, source = self.assert_generate("""
types:
serialization_context:
bson_serialization_type: any
description: foo
cpp_type: foo
internal_only: true
is_view: false
Pokemon:
description: "Yet another custom type"
cpp_type: "stdx::variant<Pikachu, Snorlax>"
bson_serialization_type: any
serializer: ::pokemon::pokedex::record
deserializer: ::pokemon::pokedex::lookup
is_view: false
structs:
Pokedex:
description: "Struct representing the index hint spec."
fields:
knownPokemons:
type: array<Pokemon>
""")
expected = dedent("""
void Pokedex::serialize(BSONObjBuilder* builder) const {
_hasMembers.required();
{
BSONArrayBuilder arrayBuilder(builder->subarrayStart(kKnownPokemonsFieldName));
for (const auto& item : _knownPokemons) {
::pokemon::pokedex::record(item, &arrayBuilder);
}
}
}
""")
self.assertIn(expected, source)
def test_custom_array_type_method_serialization(self) -> None:
"""Test the method based serialization codegen for array containing custom types."""
_, source = self.assert_generate("""
types:
serialization_context:
bson_serialization_type: any
description: foo
cpp_type: foo
internal_only: true
is_view: false
Pokemon:
description: "Yet another custom type"
cpp_type: "stdx::variant<Pikachu, Snorlax>"
bson_serialization_type: any
serializer: record
deserializer: lookup
is_view: false
structs:
Pokedex:
description: "Struct representing the index hint spec."
fields:
knownPokemons:
type: array<Pokemon>
""")
expected = dedent("""
void Pokedex::serialize(BSONObjBuilder* builder) const {
_hasMembers.required();
{
BSONArrayBuilder arrayBuilder(builder->subarrayStart(kKnownPokemonsFieldName));
for (const auto& item : _knownPokemons) {
item.record(&arrayBuilder);
}
}
}
""")
self.assertIn(expected, source)
def test_object_type_with_custom_serializer_and_query_shape_specification_custom(self) -> None:
"""Serialization with custom query_shape."""
_, source = self.assert_generate("""
types:
serialization_context:
bson_serialization_type: any
description: foo
cpp_type: foo
internal_only: true
is_view: false
object_type_with_custom_serializer:
bson_serialization_type: object
description: ObjWithCustomSerializer
cpp_type: ObjWithCustomSerializer
serializer: ObjWithCustomSerializer::toBSON
deserializer: ObjWithCustomSerializer::parse
is_view: false
structs:
QueryShapeSpec:
description: QueryShape
query_shape_component: true
fields:
internalObject:
type: object_type_with_custom_serializer
optional: false
description: internalObject
query_shape: custom
""")
expected = dedent("""
void QueryShapeSpec::serialize(BSONObjBuilder* builder, const SerializationOptions& options) const {
_hasMembers.required();
{
const BSONObj localObject = _internalObject.toBSON(options);
builder->append(kInternalObjectFieldName, localObject);
}
}""")
self.assertIn(expected, source)
def test_array_of_object_type_with_custom_serializer_and_query_shape_specification_custom(
self) -> None:
"""Serialization with custom query_shape used, array use case."""
_, source = self.assert_generate("""
types:
serialization_context:
bson_serialization_type: any
description: foo
cpp_type: foo
internal_only: true
is_view: false
object_type_with_custom_serializer:
bson_serialization_type: object
description: ObjWithCustomSerializer
cpp_type: ObjWithCustomSerializer
serializer: ObjWithCustomSerializer::toBSON
deserializer: ObjWithCustomSerializer::parse
is_view: false
structs:
QueryShapeSpec:
description: QueryShape
query_shape_component: true
fields:
internalObjectArray:
type: array<object_type_with_custom_serializer>
optional: false
description: internalObjectArray
query_shape: custom
""")
expected = dedent("""
void QueryShapeSpec::serialize(BSONObjBuilder* builder, const SerializationOptions& options) const {
_hasMembers.required();
{
BSONArrayBuilder arrayBuilder(builder->subarrayStart(kInternalObjectArrayFieldName));
for (const auto& item : _internalObjectArray) {
const BSONObj localObject = item.toBSON(options);
arrayBuilder.append(localObject);
}
}
}""")
self.assertIn(expected, source)
view_test_common_types = dedent("""
types:
serialization_context:
bson_serialization_type: any
description: foo
cpp_type: foo
internal_only: true
is_view: false
object_is_view:
bson_serialization_type: object
description: ObjIsView
cpp_type: ObjIsView
serializer: ObjIsView::toBSON
deserializer: ObjIsView::parse
is_view: true
object_is_not_view:
bson_serialization_type: object
description: ObjIsView
cpp_type: ObjIsView
serializer: ObjIsView::toBSON
deserializer: ObjIsView::parse
is_view: false
random_type_not_view:
bson_serialization_type: any
description: RandomType
cpp_type: RandomType
serializer: RandomType::toBSON
deserializer: RandomType::parse
is_view: false
tenant_id:
bson_serialization_type: any
description: "A struct representing a tenant id"
cpp_type: "TenantId"
deserializer: "mongo::TenantId::parseFromBSON"
serializer: "mongo::TenantId::serializeToBSON"
is_view: false
database_name:
bson_serialization_type: string
description: "A MongoDB DatabaseName"
cpp_type: "mongo::DatabaseName"
serializer: "::mongo::DatabaseNameUtil::serialize"
deserializer: "::mongo::DatabaseNameUtil::deserialize"
deserialize_with_tenant: true
is_view: false
bool:
bson_serialization_type: bool
description: "A BSON bool"
cpp_type: "bool"
deserializer: "mongo::BSONElement::boolean"
is_view: false
""")
def test_view_struct_generates_anchor(self) -> None:
"""Test anchor generation on view struct."""
header, _ = self.assert_generate(self.view_test_common_types + dedent("""
structs:
ViewStruct:
description: ViewStruct
fields:
value1: object_is_view
value2: random_type_not_view
value3: random_type_not_view
value4: random_type_not_view
"""))
expected = dedent("BSONObj _anchorObj;")
self.assertIn(expected, header)
def test_non_view_struct_does_not_generate_anchor(self) -> None:
"""Test anchor is not generated on non view struct."""
header, _ = self.assert_generate(self.view_test_common_types + dedent("""
structs:
NonViewStruct:
description: NonViewStruct
fields:
value1: object_is_not_view
value2: random_type_not_view
value3: random_type_not_view
value4: random_type_not_view
"""))
expected = dedent("BSONObj _anchorObj;")
self.assertNotIn(expected, header)
def test_compound_view_struct_generates_anchor(self) -> None:
"""Test anchor generation on view struct with compound type."""
header, _ = self.assert_generate(self.view_test_common_types + dedent("""
structs:
ViewStruct:
description: ViewStruct
fields:
value1: array<object_is_view>
value2: random_type_not_view
value3: random_type_not_view
value4: random_type_not_view
"""))
expected = dedent("BSONObj _anchorObj;")
self.assertIn(expected, header)
def test_compound_non_view_struct_does_not_generate_anchor(self) -> None:
"""Test anchor is not generated on non view struct with compound type."""
header, _ = self.assert_generate(self.view_test_common_types + dedent("""
structs:
NonViewStruct:
description: NonViewStruct
fields:
value1: array<object_is_not_view>
value2: random_type_not_view
value3: random_type_not_view
value4: random_type_not_view
"""))
expected = dedent("BSONObj _anchorObj;")
self.assertNotIn(expected, header)
def test_command_view_type_generates_anchor(self) -> None:
"""Test anchor generation on command with view parameter."""
header, _ = self.assert_generate(self.view_test_common_types + dedent("""
commands:
CommandTypeArrayObjectCommand:
description: CommandTypeArrayObjectCommand
command_name: CommandTypeArrayObjectCommand
namespace: type
api_version: ""
type: array<object_is_view>
"""))
expected = dedent("BSONObj _anchorObj;")
self.assertIn(expected, header)
def test_command_non_view_type_does_not_generate_anchor(self) -> None:
"""Test anchor is not generated on command with nont view parameter."""
header, _ = self.assert_generate(self.view_test_common_types + dedent("""
commands:
CommandTypeArrayObjectCommand:
description: CommandTypeArrayObjectCommand
command_name: CommandTypeArrayObjectCommand
namespace: type
api_version: ""
type: array<object_is_not_view>
"""))
expected = dedent("BSONObj _anchorObj;")
self.assertNotIn(expected, header)
def test_chained_view_struct_generates_anchor(self) -> None:
"""Test anchor generation on struct chained with view struct."""
header, _ = self.assert_generate(self.view_test_common_types + dedent("""
structs:
ViewStruct:
description: ViewStruct
fields:
value1: array<object_is_view>
value2: random_type_not_view
value3: random_type_not_view
value4: random_type_not_view
ViewStructChainedStruct:
description: ViewStructChainedStruct
chained_structs:
ViewStruct: ViewStruct
"""))
expected = dedent("BSONObj _anchorObj;")
self.assertIn(expected, header)
def test_chained_non_view_struct_does_not_generate_anchor(self) -> None:
"""Test anchor not generated on struct chained with non view struct."""
header, _ = self.assert_generate(self.view_test_common_types + dedent("""
structs:
NonViewStruct:
description: NonViewStruct
fields:
value1: array<object_is_not_view>
value2: random_type_not_view
value3: random_type_not_view
value4: random_type_not_view
NonViewStructChainedStruct:
description: NonViewStructChainedStruct
chained_structs:
NonViewStruct: NonViewStruct
"""))
expected = dedent("BSONObj _anchorObj;")
self.assertNotIn(expected, header)
if __name__ == '__main__':
unittest.main()