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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.
package lib
import (
"fmt"
"os"
"os/exec"
"regexp"
"strings"
)
var (
goTestRegEx = regexp.MustCompile(`^.+\.go$`)
// Directories with .dir contain helper files for tests.
// Exclude benchmarks and stress tests.
goDirFilter = regexp.MustCompile(`^(bench|stress)\/.+$|^.+\.dir.+$`)
)
// Location of Go tests on disk.
const goTestDir = "/usr/local/go/test"
// goRunner implements TestRunner for Go.
//
// There are two types of Go tests: "Go tool tests" and "Go tests on disk".
// "Go tool tests" are found and executed using `go tool dist test`. "Go tests
// on disk" are found in the /usr/local/go/test directory and are executed
// using `go run run.go`.
type goRunner struct{}
var _ TestRunner = goRunner{}
// ListTests implements TestRunner.ListTests.
func (goRunner) ListTests() ([]string, error) {
// Go tool dist test tests.
args := []string{"tool", "dist", "test", "-list"}
cmd := exec.Command("go", args...)
cmd.Stderr = os.Stderr
out, err := cmd.Output()
if err != nil {
return nil, fmt.Errorf("failed to list: %v", err)
}
var toolSlice []string
for _, test := range strings.Split(string(out), "\n") {
toolSlice = append(toolSlice, test)
}
// Go tests on disk.
diskSlice, err := Search(goTestDir, goTestRegEx)
if err != nil {
return nil, err
}
// Remove items from /bench/, /stress/ and .dir files
diskFiltered := diskSlice[:0]
for _, file := range diskSlice {
if !goDirFilter.MatchString(file) {
diskFiltered = append(diskFiltered, file)
}
}
return append(toolSlice, diskFiltered...), nil
}
// TestCmds implements TestRunner.TestCmds.
func (goRunner) TestCmds(tests []string) []*exec.Cmd {
var toolTests, onDiskTests []string
for _, test := range tests {
if strings.HasSuffix(test, ".go") {
onDiskTests = append(onDiskTests, test)
} else {
toolTests = append(toolTests, "^"+test+"$")
}
}
var cmds []*exec.Cmd
if len(toolTests) > 0 {
cmds = append(cmds, exec.Command("go", "tool", "dist", "test", "-v", "-no-rebuild", "-run", strings.Join(toolTests, "\\|")))
}
if len(onDiskTests) > 0 {
cmd := exec.Command("go", append([]string{"run", "run.go", "-v", "--"}, onDiskTests...)...)
cmd.Dir = goTestDir
cmds = append(cmds, cmd)
}
return cmds
}
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