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// Copyright 2022 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 diagnostics
import (
"fmt"
"testing"
"golang.org/x/tools/gopls/internal/lsp/protocol"
. "golang.org/x/tools/gopls/internal/lsp/regtest"
)
// Test for golang/go#50267: diagnostics should be re-sent after a file is
// opened.
func TestDiagnosticsAreResentAfterCloseOrOpen(t *testing.T) {
const files = `
-- go.mod --
module mod.com
go 1.16
-- main.go --
package main
func _() {
x := 2
}
`
Run(t, files, func(_ *testing.T, env *Env) { // Create a new workspace-level directory and empty file.
env.OpenFile("main.go")
var afterOpen protocol.PublishDiagnosticsParams
env.Await(
OnceMet(
env.DoneWithOpen(),
ReadDiagnostics("main.go", &afterOpen),
),
)
env.CloseBuffer("main.go")
var afterClose protocol.PublishDiagnosticsParams
env.Await(
OnceMet(
env.DoneWithClose(),
ReadDiagnostics("main.go", &afterClose),
),
)
if afterOpen.Version == afterClose.Version {
t.Errorf("publishDiagnostics: got the same version after closing (%d) as after opening", afterOpen.Version)
}
env.OpenFile("main.go")
var afterReopen protocol.PublishDiagnosticsParams
env.Await(
OnceMet(
env.DoneWithOpen(),
ReadDiagnostics("main.go", &afterReopen),
),
)
if afterReopen.Version == afterClose.Version {
t.Errorf("pubslishDiagnostics: got the same version after reopening (%d) as after closing", afterClose.Version)
}
})
}
// Test for the "chattyDiagnostics" setting: we should get re-published
// diagnostics after every file change, even if diagnostics did not change.
func TestChattyDiagnostics(t *testing.T) {
const files = `
-- go.mod --
module mod.com
go 1.16
-- main.go --
package main
func _() {
x := 2
}
// Irrelevant comment #0
`
WithOptions(
Settings{
"chattyDiagnostics": true,
},
).Run(t, files, func(_ *testing.T, env *Env) { // Create a new workspace-level directory and empty file.
env.OpenFile("main.go")
var d protocol.PublishDiagnosticsParams
env.Await(
OnceMet(
env.DoneWithOpen(),
ReadDiagnostics("main.go", &d),
),
)
if len(d.Diagnostics) != 1 {
t.Fatalf("len(Diagnostics) = %d, want 1", len(d.Diagnostics))
}
msg := d.Diagnostics[0].Message
for i := 0; i < 5; i++ {
before := d.Version
env.RegexpReplace("main.go", "Irrelevant comment #.", fmt.Sprintf("Irrelevant comment #%d", i))
env.Await(
OnceMet(
env.DoneWithChange(),
ReadDiagnostics("main.go", &d),
),
)
if d.Version == before {
t.Errorf("after change, got version %d, want new version", d.Version)
}
// As a sanity check, make sure we have the same diagnostic.
if len(d.Diagnostics) != 1 {
t.Fatalf("len(Diagnostics) = %d, want 1", len(d.Diagnostics))
}
newMsg := d.Diagnostics[0].Message
if newMsg != msg {
t.Errorf("after change, got message %q, want %q", newMsg, msg)
}
}
})
}
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