consul/sdk/testutil/io.go

83 lines
2.3 KiB
Go

package testutil
import (
"fmt"
"io/ioutil"
"os"
"strings"
"testing"
)
// tmpdir is the base directory for all temporary directories
// and files created with TempDir and TempFile. This could be
// achieved by setting a system environment variable but then
// the test execution would depend on whether or not the
// environment variable is set.
//
// On macOS the temp base directory is quite long and that
// triggers a problem with some tests that bind to UNIX sockets
// where the filename seems to be too long. Using a shorter name
// fixes this and makes the paths more readable.
//
// It also provides a single base directory for cleanup.
var tmpdir = "/tmp/consul-test"
func init() {
if err := os.MkdirAll(tmpdir, 0755); err != nil {
fmt.Printf("Cannot create %s. Reverting to /tmp\n", tmpdir)
tmpdir = "/tmp"
}
}
var noCleanup = strings.ToLower(os.Getenv("TEST_NOCLEANUP")) == "true"
// TempDir creates a temporary directory within tmpdir with the name 'testname-name'.
// If the directory cannot be created t.Fatal is called.
// The directory will be removed when the test ends. Set TEST_NOCLEANUP env var
// to prevent the directory from being removed.
func TempDir(t *testing.T, name string) string {
if t == nil {
panic("argument t must be non-nil")
}
name = t.Name() + "-" + name
name = strings.Replace(name, "/", "_", -1)
d, err := ioutil.TempDir(tmpdir, name)
if err != nil {
t.Fatalf("err: %s", err)
}
t.Cleanup(func() {
if noCleanup {
t.Logf("skipping cleanup because TEST_NOCLEANUP was enabled")
return
}
os.RemoveAll(d)
})
return d
}
// TempFile creates a temporary file within tmpdir with the name 'testname-name'.
// If the file cannot be created t.Fatal is called. If a temporary directory
// has been created before consider storing the file inside this directory to
// avoid double cleanup.
// The file will be removed when the test ends. Set TEST_NOCLEANUP env var
// to prevent the file from being removed.
func TempFile(t *testing.T, name string) *os.File {
if t == nil {
panic("argument t must be non-nil")
}
name = t.Name() + "-" + name
name = strings.Replace(name, "/", "_", -1)
f, err := ioutil.TempFile(tmpdir, name)
if err != nil {
t.Fatalf("err: %s", err)
}
t.Cleanup(func() {
if noCleanup {
t.Logf("skipping cleanup because TEST_NOCLEANUP was enabled")
return
}
os.Remove(f.Name())
})
return f
}