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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 integration
import (
"context"
"flag"
"fmt"
"os"
"runtime"
"testing"
"time"
"cuelang.org/go/internal/golangorgx/gopls/cmd"
"cuelang.org/go/internal/golangorgx/gopls/settings"
"cuelang.org/go/internal/golangorgx/tools/gocommand"
"cuelang.org/go/internal/golangorgx/tools/memoize"
"cuelang.org/go/internal/golangorgx/tools/testenv"
"cuelang.org/go/internal/golangorgx/tools/tool"
"cuelang.org/go/internal/lsp/cache"
)
var (
runSubprocessTests = flag.Bool("enable_gopls_subprocess_tests", false, "run integration tests against a gopls subprocess (default: in-process)")
goplsBinaryPath = flag.String("gopls_test_binary", "", "path to the gopls binary for use as a remote, for use with the -enable_gopls_subprocess_tests flag")
timeout = flag.Duration("timeout", defaultTimeout(), "if nonzero, default timeout for each integration test; defaults to GOPLS_INTEGRATION_TEST_TIMEOUT")
skipCleanup = flag.Bool("skip_cleanup", false, "whether to skip cleaning up temp directories")
printGoroutinesOnFailure = flag.Bool("print_goroutines", false, "whether to print goroutines info on failure")
printLogs = flag.Bool("print_logs", false, "whether to print LSP logs")
)
func defaultTimeout() time.Duration {
s := os.Getenv("GOPLS_INTEGRATION_TEST_TIMEOUT")
if s == "" {
return 0
}
d, err := time.ParseDuration(s)
if err != nil {
fmt.Fprintf(os.Stderr, "invalid GOPLS_INTEGRATION_TEST_TIMEOUT %q: %v\n", s, err)
os.Exit(2)
}
return d
}
var runner *Runner
// The integrationTestRunner interface abstracts the Run operation,
// enables decorators for various optional features.
type integrationTestRunner interface {
Run(t *testing.T, files string, f TestFunc)
}
func Run(t *testing.T, files string, f TestFunc) {
runner.Run(t, files, f)
}
func WithOptions(opts ...RunOption) configuredRunner {
return configuredRunner{opts: opts}
}
type configuredRunner struct {
opts []RunOption
}
func (r configuredRunner) Run(t *testing.T, files string, f TestFunc) {
// Print a warning if the test's temporary directory is not
// suitable as a workspace folder, as this may lead to
// otherwise-cryptic failures. This situation typically occurs
// when an arbitrary string (e.g. "foo.") is used as a subtest
// name, on a platform with filename restrictions (e.g. no
// trailing period on Windows).
tmp := t.TempDir()
if err := cache.CheckPathValid(tmp); err != nil {
t.Logf("Warning: testing.T.TempDir(%s) is not valid as a workspace folder: %s",
tmp, err)
}
runner.Run(t, files, f, r.opts...)
}
type RunMultiple []struct {
Name string
Runner integrationTestRunner
}
func (r RunMultiple) Run(t *testing.T, files string, f TestFunc) {
for _, runner := range r {
t.Run(runner.Name, func(t *testing.T) {
runner.Runner.Run(t, files, f)
})
}
}
// DefaultModes returns the default modes to run for each regression test (they
// may be reconfigured by the tests themselves).
func DefaultModes() Mode {
modes := Default
if !testing.Short() {
modes |= Experimental | Forwarded
}
if *runSubprocessTests {
modes |= SeparateProcess
}
return modes
}
// Main sets up and tears down the shared integration test state.
func Main(m *testing.M, hook func(*settings.Options)) {
// golang/go#54461: enable additional debugging around hanging Go commands.
gocommand.DebugHangingGoCommands = true
// If this magic environment variable is set, run gopls instead of the test
// suite. See the documentation for runTestAsGoplsEnvvar for more details.
if os.Getenv(runTestAsGoplsEnvvar) == "true" {
tool.Main(context.Background(), cmd.New(hook), os.Args[1:])
os.Exit(0)
}
if !testenv.HasExec() {
fmt.Printf("skipping all tests: exec not supported on %s/%s\n", runtime.GOOS, runtime.GOARCH)
os.Exit(0)
}
// Disable GOPACKAGESDRIVER, as it can cause spurious test failures.
os.Setenv("GOPACKAGESDRIVER", "off")
flag.Parse()
runner = &Runner{
DefaultModes: DefaultModes(),
Timeout: *timeout,
PrintGoroutinesOnFailure: *printGoroutinesOnFailure,
SkipCleanup: *skipCleanup,
OptionsHook: hook,
store: memoize.NewStore(memoize.NeverEvict),
}
runner.goplsPath = *goplsBinaryPath
if runner.goplsPath == "" {
var err error
runner.goplsPath, err = os.Executable()
if err != nil {
panic(fmt.Sprintf("finding test binary path: %v", err))
}
}
dir, err := os.MkdirTemp("", "cue-lsp-test-")
if err != nil {
panic(fmt.Errorf("creating temp directory: %v", err))
}
runner.tempDir = dir
var code int
defer func() {
if err := runner.Close(); err != nil {
fmt.Fprintf(os.Stderr, "closing test runner: %v\n", err)
// Cleanup is broken in go1.12 and earlier, and sometimes flakes on
// Windows due to file locking, but this is OK for our CI.
//
// Fail on go1.13+, except for windows and android which have shutdown problems.
if testenv.Go1Point() >= 13 && runtime.GOOS != "windows" && runtime.GOOS != "android" {
os.Exit(1)
}
}
os.Exit(code)
}()
code = m.Run()
}
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