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# Copyright 2014 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import http.client
import json

import grpc
import mock
import requests

from google.api_core import exceptions


def test_create_google_cloud_error():
    exception = exceptions.GoogleAPICallError("Testing")
    exception.code = 600
    assert str(exception) == "600 Testing"
    assert exception.message == "Testing"
    assert exception.errors == []
    assert exception.response is None


def test_create_google_cloud_error_with_args():
    error = {
        "domain": "global",
        "location": "test",
        "locationType": "testing",
        "message": "Testing",
        "reason": "test",
    }
    response = mock.sentinel.response
    exception = exceptions.GoogleAPICallError("Testing", [error], response=response)
    exception.code = 600
    assert str(exception) == "600 Testing"
    assert exception.message == "Testing"
    assert exception.errors == [error]
    assert exception.response == response


def test_from_http_status():
    message = "message"
    exception = exceptions.from_http_status(http.client.NOT_FOUND, message)
    assert exception.code == http.client.NOT_FOUND
    assert exception.message == message
    assert exception.errors == []


def test_from_http_status_with_errors_and_response():
    message = "message"
    errors = ["1", "2"]
    response = mock.sentinel.response
    exception = exceptions.from_http_status(
        http.client.NOT_FOUND, message, errors=errors, response=response
    )

    assert isinstance(exception, exceptions.NotFound)
    assert exception.code == http.client.NOT_FOUND
    assert exception.message == message
    assert exception.errors == errors
    assert exception.response == response


def test_from_http_status_unknown_code():
    message = "message"
    status_code = 156
    exception = exceptions.from_http_status(status_code, message)
    assert exception.code == status_code
    assert exception.message == message


def make_response(content):
    response = requests.Response()
    response._content = content
    response.status_code = http.client.NOT_FOUND
    response.request = requests.Request(
        method="POST", url="https://example.com"
    ).prepare()
    return response


def test_from_http_response_no_content():
    response = make_response(None)

    exception = exceptions.from_http_response(response)

    assert isinstance(exception, exceptions.NotFound)
    assert exception.code == http.client.NOT_FOUND
    assert exception.message == "POST https://example.com/: unknown error"
    assert exception.response == response


def test_from_http_response_text_content():
    response = make_response(b"message")
    response.encoding = "UTF8"  # suppress charset_normalizer warning

    exception = exceptions.from_http_response(response)

    assert isinstance(exception, exceptions.NotFound)
    assert exception.code == http.client.NOT_FOUND
    assert exception.message == "POST https://example.com/: message"


def test_from_http_response_json_content():
    response = make_response(
        json.dumps({"error": {"message": "json message", "errors": ["1", "2"]}}).encode(
            "utf-8"
        )
    )

    exception = exceptions.from_http_response(response)

    assert isinstance(exception, exceptions.NotFound)
    assert exception.code == http.client.NOT_FOUND
    assert exception.message == "POST https://example.com/: json message"
    assert exception.errors == ["1", "2"]


def test_from_http_response_bad_json_content():
    response = make_response(json.dumps({"meep": "moop"}).encode("utf-8"))

    exception = exceptions.from_http_response(response)

    assert isinstance(exception, exceptions.NotFound)
    assert exception.code == http.client.NOT_FOUND
    assert exception.message == "POST https://example.com/: unknown error"


def test_from_http_response_json_unicode_content():
    response = make_response(
        json.dumps(
            {"error": {"message": "\u2019 message", "errors": ["1", "2"]}}
        ).encode("utf-8")
    )

    exception = exceptions.from_http_response(response)

    assert isinstance(exception, exceptions.NotFound)
    assert exception.code == http.client.NOT_FOUND
    assert exception.message == "POST https://example.com/: \u2019 message"
    assert exception.errors == ["1", "2"]


def test_from_grpc_status():
    message = "message"
    exception = exceptions.from_grpc_status(grpc.StatusCode.OUT_OF_RANGE, message)
    assert isinstance(exception, exceptions.BadRequest)
    assert isinstance(exception, exceptions.OutOfRange)
    assert exception.code == http.client.BAD_REQUEST
    assert exception.grpc_status_code == grpc.StatusCode.OUT_OF_RANGE
    assert exception.message == message
    assert exception.errors == []


def test_from_grpc_status_as_int():
    message = "message"
    exception = exceptions.from_grpc_status(11, message)
    assert isinstance(exception, exceptions.BadRequest)
    assert isinstance(exception, exceptions.OutOfRange)
    assert exception.code == http.client.BAD_REQUEST
    assert exception.grpc_status_code == grpc.StatusCode.OUT_OF_RANGE
    assert exception.message == message
    assert exception.errors == []


def test_from_grpc_status_with_errors_and_response():
    message = "message"
    response = mock.sentinel.response
    errors = ["1", "2"]
    exception = exceptions.from_grpc_status(
        grpc.StatusCode.OUT_OF_RANGE, message, errors=errors, response=response
    )

    assert isinstance(exception, exceptions.OutOfRange)
    assert exception.message == message
    assert exception.errors == errors
    assert exception.response == response


def test_from_grpc_status_unknown_code():
    message = "message"
    exception = exceptions.from_grpc_status(grpc.StatusCode.OK, message)
    assert exception.grpc_status_code == grpc.StatusCode.OK
    assert exception.message == message


def test_from_grpc_error():
    message = "message"
    error = mock.create_autospec(grpc.Call, instance=True)
    error.code.return_value = grpc.StatusCode.INVALID_ARGUMENT
    error.details.return_value = message

    exception = exceptions.from_grpc_error(error)

    assert isinstance(exception, exceptions.BadRequest)
    assert isinstance(exception, exceptions.InvalidArgument)
    assert exception.code == http.client.BAD_REQUEST
    assert exception.grpc_status_code == grpc.StatusCode.INVALID_ARGUMENT
    assert exception.message == message
    assert exception.errors == [error]
    assert exception.response == error


def test_from_grpc_error_non_call():
    message = "message"
    error = mock.create_autospec(grpc.RpcError, instance=True)
    error.__str__.return_value = message

    exception = exceptions.from_grpc_error(error)

    assert isinstance(exception, exceptions.GoogleAPICallError)
    assert exception.code is None
    assert exception.grpc_status_code is None
    assert exception.message == message
    assert exception.errors == [error]
    assert exception.response == error