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// Copyright 2019 The gVisor Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Binary proctor-go is a utility that facilitates language testing for Go.
// There are two types of Go tests: "Go tool tests" and "Go tests on disk".
// "Go tool tests" are found and executed using `go tool dist test`.
// "Go tests on disk" are found in the /test directory and are
// executed using `go run run.go`.
package main
import (
"fmt"
"log"
"os"
"os/exec"
"path/filepath"
"regexp"
"strings"
"gvisor.dev/gvisor/test/runtimes/common"
)
var (
dir = os.Getenv("LANG_DIR")
goBin = filepath.Join(dir, "bin/go")
testDir = filepath.Join(dir, "test")
testRegEx = regexp.MustCompile(`^.+\.go$`)
// Directories with .dir contain helper files for tests.
// Exclude benchmarks and stress tests.
exclDirs = regexp.MustCompile(`^.+\/(bench|stress)\/.+$|^.+\.dir.+$`)
)
type goRunner struct {
}
func main() {
if err := common.LaunchFunc(goRunner{}); err != nil {
log.Fatalf("Failed to start: %v", err)
}
}
func (g goRunner) ListTests() ([]string, error) {
// Go tool dist test tests.
args := []string{"tool", "dist", "test", "-list"}
cmd := exec.Command(filepath.Join(dir, "bin/go"), args...)
cmd.Stderr = os.Stderr
out, err := cmd.Output()
if err != nil {
log.Fatalf("Failed to list: %v", err)
}
var testSlice []string
for _, test := range strings.Split(string(out), "\n") {
testSlice = append(testSlice, test)
}
// Go tests on disk.
if err := filepath.Walk(testDir, func(path string, info os.FileInfo, err error) error {
name := filepath.Base(path)
if info.IsDir() {
return nil
}
if !testRegEx.MatchString(name) {
return nil
}
if exclDirs.MatchString(path) {
return nil
}
testSlice = append(testSlice, path)
return nil
}); err != nil {
return nil, fmt.Errorf("walking %q: %v", testDir, err)
}
return testSlice, nil
}
func (g goRunner) RunTest(test string) error {
// Check if test exists on disk by searching for file of the same name.
// This will determine whether or not it is a Go test on disk.
if _, err := os.Stat(test); err == nil {
relPath, err := filepath.Rel(testDir, test)
if err != nil {
return fmt.Errorf("failed to get rel path: %v", err)
}
cmd := exec.Command(goBin, "run", "run.go", "-v", "--", relPath)
cmd.Dir = testDir
cmd.Stdout, cmd.Stderr = os.Stdout, os.Stderr
if err := cmd.Run(); err != nil {
return fmt.Errorf("failed to run test: %v", err)
}
} else if os.IsNotExist(err) {
// File was not found, try running as Go tool test.
cmd := exec.Command(goBin, "tool", "dist", "test", "-run", test)
cmd.Stdout, cmd.Stderr = os.Stdout, os.Stderr
if err := cmd.Run(); err != nil {
return fmt.Errorf("failed to run test: %v", err)
}
} else {
return fmt.Errorf("error searching for test: %v", err)
}
return nil
}
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