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// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package progress
import (
"context"
"fmt"
"sync"
"testing"
"golang.org/x/tools/gopls/internal/lsp/protocol"
)
type fakeClient struct {
protocol.Client
token protocol.ProgressToken
mu sync.Mutex
created, begun, reported, messages, ended int
}
func (c *fakeClient) checkToken(token protocol.ProgressToken) {
if token == nil {
panic("nil token in progress message")
}
if c.token != nil && c.token != token {
panic(fmt.Errorf("invalid token in progress message: got %v, want %v", token, c.token))
}
}
func (c *fakeClient) WorkDoneProgressCreate(ctx context.Context, params *protocol.WorkDoneProgressCreateParams) error {
c.mu.Lock()
defer c.mu.Unlock()
c.checkToken(params.Token)
c.created++
return nil
}
func (c *fakeClient) Progress(ctx context.Context, params *protocol.ProgressParams) error {
c.mu.Lock()
defer c.mu.Unlock()
c.checkToken(params.Token)
switch params.Value.(type) {
case *protocol.WorkDoneProgressBegin:
c.begun++
case *protocol.WorkDoneProgressReport:
c.reported++
case *protocol.WorkDoneProgressEnd:
c.ended++
default:
panic(fmt.Errorf("unknown progress value %T", params.Value))
}
return nil
}
func (c *fakeClient) ShowMessage(context.Context, *protocol.ShowMessageParams) error {
c.mu.Lock()
defer c.mu.Unlock()
c.messages++
return nil
}
func setup(token protocol.ProgressToken) (context.Context, *Tracker, *fakeClient) {
c := &fakeClient{}
tracker := NewTracker(c)
tracker.SetSupportsWorkDoneProgress(true)
return context.Background(), tracker, c
}
func TestProgressTracker_Reporting(t *testing.T) {
for _, test := range []struct {
name string
supported bool
token protocol.ProgressToken
wantReported, wantCreated, wantBegun, wantEnded int
wantMessages int
}{
{
name: "unsupported",
wantMessages: 2,
},
{
name: "random token",
supported: true,
wantCreated: 1,
wantBegun: 1,
wantReported: 1,
wantEnded: 1,
},
{
name: "string token",
supported: true,
token: "token",
wantBegun: 1,
wantReported: 1,
wantEnded: 1,
},
{
name: "numeric token",
supported: true,
token: 1,
wantReported: 1,
wantBegun: 1,
wantEnded: 1,
},
} {
test := test
t.Run(test.name, func(t *testing.T) {
ctx, tracker, client := setup(test.token)
ctx, cancel := context.WithCancel(ctx)
defer cancel()
tracker.supportsWorkDoneProgress = test.supported
work := tracker.Start(ctx, "work", "message", test.token, nil)
client.mu.Lock()
gotCreated, gotBegun := client.created, client.begun
client.mu.Unlock()
if gotCreated != test.wantCreated {
t.Errorf("got %d created tokens, want %d", gotCreated, test.wantCreated)
}
if gotBegun != test.wantBegun {
t.Errorf("got %d work begun, want %d", gotBegun, test.wantBegun)
}
// Ignore errors: this is just testing the reporting behavior.
work.Report(ctx, "report", 50)
client.mu.Lock()
gotReported := client.reported
client.mu.Unlock()
if gotReported != test.wantReported {
t.Errorf("got %d progress reports, want %d", gotReported, test.wantCreated)
}
work.End(ctx, "done")
client.mu.Lock()
gotEnded, gotMessages := client.ended, client.messages
client.mu.Unlock()
if gotEnded != test.wantEnded {
t.Errorf("got %d ended reports, want %d", gotEnded, test.wantEnded)
}
if gotMessages != test.wantMessages {
t.Errorf("got %d messages, want %d", gotMessages, test.wantMessages)
}
})
}
}
func TestProgressTracker_Cancellation(t *testing.T) {
for _, token := range []protocol.ProgressToken{nil, 1, "a"} {
ctx, tracker, _ := setup(token)
var canceled bool
cancel := func() { canceled = true }
work := tracker.Start(ctx, "work", "message", token, cancel)
if err := tracker.Cancel(work.Token()); err != nil {
t.Fatal(err)
}
if !canceled {
t.Errorf("tracker.cancel(...): cancel not called")
}
}
}
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