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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"
"errors"
"net/http"
"net/url"
"testing"
"github.com/jessevdk/go-flags"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/mock"
"github.com/stretchr/testify/require"
)
func TestConfigParsing(t *testing.T) {
var cfg Config
_, err := flags.ParseArgs(&cfg, []string{
"--disable-expansion",
"--endpoint", "http://localhost:8182/gremlin",
})
assert.NoError(t, err)
assert.True(t, cfg.DisableExpansion)
assert.Equal(t, "http", cfg.Endpoint.Scheme)
assert.Equal(t, "http://localhost:8182/gremlin", cfg.Endpoint.String())
cfg = Config{}
_, err = flags.ParseArgs(&cfg, nil)
assert.NoError(t, err)
assert.NotNil(t, cfg.Endpoint.URL)
}
func TestConfigBuild(t *testing.T) {
tests := []struct {
name string
cfg Config
opts []Option
wantErr bool
}{
{
name: "HTTP",
cfg: Config{
Endpoint: Endpoint{
URL: func() *url.URL {
u, _ := url.Parse("http://gremlin-server/gremlin")
return u
}(),
},
},
},
{
name: "NoScheme",
cfg: Config{
Endpoint: Endpoint{
URL: &url.URL{},
},
},
wantErr: true,
},
{
name: "BadScheme",
cfg: Config{
Endpoint: Endpoint{
URL: &url.URL{
Scheme: "bad",
},
},
},
wantErr: true,
},
{
name: "WithOptions",
cfg: Config{
Endpoint: Endpoint{
URL: func() *url.URL {
u, _ := url.Parse("http://gremlin-server/gremlin")
return u
}(),
},
DisableExpansion: true,
},
opts: []Option{WithHTTPClient(&http.Client{})},
},
{
name: "NoExpansion",
cfg: Config{
Endpoint: Endpoint{
URL: &url.URL{
Scheme: "bad",
},
},
DisableExpansion: true,
},
wantErr: true,
},
}
for _, tc := range tests {
tc := tc
t.Run(tc.name, func(t *testing.T) {
client, err := tc.cfg.Build(tc.opts...)
if !tc.wantErr {
assert.NotNil(t, client)
assert.NoError(t, err)
} else {
assert.Error(t, err)
}
})
}
}
type testRoundTripper struct{ mock.Mock }
func (rt *testRoundTripper) RoundTrip(req *http.Request) (*http.Response, error) {
args := rt.Called(req)
rsp, _ := args.Get(0).(*http.Response)
return rsp, args.Error(1)
}
func TestBuildWithHTTPClient(t *testing.T) {
var transport testRoundTripper
transport.On("RoundTrip", mock.Anything).
Return(nil, errors.New("noop")).
Once()
defer transport.AssertExpectations(t)
u, err := url.Parse("http://gremlin-server:8182/gremlin")
require.NoError(t, err)
client, err := Config{Endpoint: Endpoint{u}}.
Build(WithHTTPClient(&http.Client{Transport: &transport}))
require.NoError(t, err)
_, _ = client.Do(context.Background(), NewEvalRequest("g.V()"))
}
func TestExpandOrdering(t *testing.T) {
var cfg Config
cfg.Endpoint.URL, _ = url.Parse("http://gremlin-server/gremlin")
interceptor := func(RoundTripper) RoundTripper {
return RoundTripperFunc(func(ctx context.Context, req *Request) (*Response, error) {
assert.Equal(t, `g.V().hasLabel("user")`, req.Arguments[ArgsGremlin])
assert.Nil(t, req.Arguments[ArgsBindings])
return nil, errors.New("noop")
})
}
c, err := cfg.Build(WithInterceptor(interceptor))
require.NoError(t, err)
req := NewEvalRequest("g.V().hasLabel($1)", WithBindings(map[string]interface{}{"$1": "user"}))
_, _ = c.Do(context.Background(), req)
}
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