go.chromium.org/luci@v0.0.0-20240309015107-7cdc2e660f33/starlark/starlarkproto/testdata/from_jsonpb.star (about)

     1  # Copyright 2019 The LUCI Authors.
     2  #
     3  # Licensed under the Apache License, Version 2.0 (the "License");
     4  # you may not use this file except in compliance with the License.
     5  # You may obtain a copy of the License at
     6  #
     7  #      http://www.apache.org/licenses/LICENSE-2.0
     8  #
     9  # Unless required by applicable law or agreed to in writing, software
    10  # distributed under the License is distributed on an "AS IS" BASIS,
    11  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  # See the License for the specific language governing permissions and
    13  # limitations under the License.
    14  
    15  l = proto.new_loader(proto.new_descriptor_set(blob=read('./testprotos/all.pb')))
    16  testprotos = l.module('go.chromium.org/luci/starlark/starlarkproto/testprotos/test.proto')
    17  
    18  # Works in general. Detailed tests for type conversions are in from_proto.star.
    19  m = proto.from_jsonpb(testprotos.Simple, '{"i": 123}')
    20  assert.eq(type(m), 'proto.Message<testprotos.Simple>')
    21  assert.eq(m.i, 123)
    22  
    23  # Unrecognized fields are OK.
    24  proto.from_jsonpb(testprotos.Simple, '{"unknown": 123}')
    25  
    26  # Unrecognized fields are rejected if discard_unknown is false.
    27  def from_jsonpb_reject_unknown():
    28    proto.from_jsonpb(testprotos.Simple, '{"unknown": 123}', discard_unknown = False)
    29  assert.fails(from_jsonpb_reject_unknown, 'unknown field')
    30  
    31  # The returned message is frozen.
    32  def from_jsonpb_frozen():
    33    proto.from_jsonpb(testprotos.Simple, '{"i": 123}').i = 456
    34  assert.fails(from_jsonpb_frozen, 'cannot modify frozen')
    35  
    36  # Bad JSONPB proto.
    37  def from_jsonpb_bad_proto():
    38    proto.from_jsonpb(testprotos.Simple, 'huh?')
    39  assert.fails(from_jsonpb_bad_proto, "syntax error")
    40  
    41  # Too many arguments.
    42  def from_jsonpb_too_many_args():
    43    proto.from_jsonpb(testprotos.Simple, '{"i": 123}', True, True)
    44  assert.fails(from_jsonpb_too_many_args, 'from_jsonpb: got 4 arguments, want at most 3')
    45  
    46  # Wrong type for constructor.
    47  def from_jsonpb_with_wrong_ctor():
    48    proto.from_jsonpb(lambda: None, '{"i": 123}')
    49  assert.fails(from_jsonpb_with_wrong_ctor, 'from_jsonpb: got function, expecting a proto message constructor')