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// Copyright 2019-present Facebook Inc. All rights reserved.
// This source code is licensed under the Apache 2.0 license found
// in the LICENSE file in the root directory of this source tree.
package gremlin
import (
"context"
"io"
"net/url"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/mock"
)
func TestNewClient(t *testing.T) {
var cfg Config
cfg.Endpoint.URL, _ = url.Parse("http://gremlin-server/gremlin")
c, err := NewClient(cfg)
assert.NotNil(t, c)
assert.NoError(t, err)
}
type mockRoundTripper struct{ mock.Mock }
func (m *mockRoundTripper) RoundTrip(ctx context.Context, req *Request) (*Response, error) {
args := m.Called(ctx, req)
return args.Get(0).(*Response), args.Error(1)
}
func TestClientRequest(t *testing.T) {
ctx := context.Background()
req, rsp := &Request{}, &Response{}
var m mockRoundTripper
m.On("RoundTrip", ctx, req).
Run(func(mock.Arguments) { rsp.Status.Code = StatusSuccess }).
Return(rsp, nil).
Once()
defer m.AssertExpectations(t)
response, err := Client{&m}.Do(context.Background(), req)
assert.NoError(t, err)
assert.Equal(t, rsp, response)
}
func TestClientResponseError(t *testing.T) {
rsp := &Response{}
var m mockRoundTripper
m.On("RoundTrip", mock.Anything, mock.Anything).
Run(func(mock.Arguments) { rsp.Status.Code = StatusServerError }).
Return(rsp, nil).
Once()
defer m.AssertExpectations(t)
_, err := Client{&m}.Do(context.Background(), nil)
assert.Error(t, err)
}
func TestClientCanceledContext(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
var m mockRoundTripper
m.On("RoundTrip", ctx, mock.Anything).
Run(func(mock.Arguments) { cancel() }).
Return(&Response{}, io.ErrUnexpectedEOF).
Once()
defer m.AssertExpectations(t)
_, err := Client{&m}.Query(ctx, "g.E()")
assert.EqualError(t, err, context.Canceled.Error())
}
func TestClientQuery(t *testing.T) {
rsp := &Response{}
rsp.Status.Code = StatusNoContent
var m mockRoundTripper
m.On("RoundTrip", mock.Anything, mock.Anything).
Run(func(args mock.Arguments) {
req := args.Get(1).(*Request)
assert.Equal(t, "g.V(1)", req.Arguments[ArgsGremlin])
}).
Return(rsp, nil).
Once()
defer m.AssertExpectations(t)
rsp, err := Client{&m}.Queryf(context.Background(), "g.V(%d)", 1)
assert.NotNil(t, rsp)
assert.NoError(t, err)
}
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