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go/internal/lsp/regtest/shared_test.go
Rob Findley 84d0e3d1cc internal/lsp/regtest: add run options to support stress testing
A bunch of options are added to enable long-running performance-oriented
tests in existing directories. They will be used in a later CL to
implement a simple stress test, as an example of what is possible.

Change-Id: I531b201b415362ea135978238b3d64b903226359
Reviewed-on: https://go-review.googlesource.com/c/tools/+/244440
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-07-23 23:37:37 +00:00

60 lines
1.6 KiB
Go

// 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 regtest
import (
"testing"
)
const sharedProgram = `
-- go.mod --
module mod
go 1.12
-- main.go --
package main
import "fmt"
func main() {
fmt.Println("Hello World.")
}`
func runShared(t *testing.T, program string, testFunc func(env1 *Env, env2 *Env)) {
// Only run these tests in forwarded modes.
modes := runner.DefaultModes & (Forwarded | SeparateProcess)
runner.Run(t, sharedProgram, func(t *testing.T, env1 *Env) {
// Create a second test session connected to the same workspace and server
// as the first.
env2 := NewEnv(env1.Ctx, t, env1.Sandbox, env1.Server, env1.Editor.Config, true)
testFunc(env1, env2)
}, WithModes(modes))
}
func TestSimultaneousEdits(t *testing.T) {
runShared(t, exampleProgram, func(env1 *Env, env2 *Env) {
// In editor #1, break fmt.Println as before.
env1.OpenFile("main.go")
env1.RegexpReplace("main.go", "Printl(n)", "")
// In editor #2 remove the closing brace.
env2.OpenFile("main.go")
env2.RegexpReplace("main.go", "\\)\n(})", "")
// Now check that we got different diagnostics in each environment.
env1.Await(env1.DiagnosticAtRegexp("main.go", "Printl"))
env2.Await(env2.DiagnosticAtRegexp("main.go", "$"))
})
}
func TestShutdown(t *testing.T) {
runShared(t, sharedProgram, func(env1 *Env, env2 *Env) {
env1.CloseEditor()
// Now make an edit in editor #2 to trigger diagnostics.
env2.OpenFile("main.go")
env2.RegexpReplace("main.go", "\\)\n(})", "")
env2.Await(env2.DiagnosticAtRegexp("main.go", "$"))
})
}