open-consul/testutil/io.go

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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 {
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fmt.Printf("Cannot create %s. Reverting to /tmp\n", tmpdir)
tmpdir = "/tmp"
}
}
// TempDir creates a temporary directory within tmpdir
// with the name 'testname-name'. If the directory cannot
// be created t.Fatal is called.
func TempDir(t *testing.T, name string) string {
if t != nil && t.Name() != "" {
name = t.Name() + "-" + name
}
name = strings.Replace(name, "/", "_", -1)
d, err := ioutil.TempDir(tmpdir, name)
if err != nil {
if t == nil {
panic(err)
}
t.Fatalf("err: %s", err)
}
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.
func TempFile(t *testing.T, name string) *os.File {
if t != nil && t.Name() != "" {
name = t.Name() + "-" + name
}
f, err := ioutil.TempFile(tmpdir, name)
if err != nil {
if t == nil {
panic(err)
}
t.Fatalf("err: %s", err)
}
return f
}