package root
import (
"fmt"
"io/ioutil"
"os"
"path/filepath"
"strings"
"testing"
"github.com/coredns/coredns/core/dnsserver"
"github.com/caddyserver/caddy"
)
func TestRoot(t *testing.T) {
// Predefined error substrings
parseErrContent := "Error during parsing:"
unableToAccessErrContent := "unable to access root path"
existingDirPath, err := getTempDirPath()
if err != nil {
t.Fatalf("BeforeTest: Failed to find an existing directory for testing! Error was: %v", err)
}
nonExistingDir := filepath.Join(existingDirPath, "highly_unlikely_to_exist_dir")
existingFile, err := ioutil.TempFile("", "root_test")
if err != nil {
t.Fatalf("BeforeTest: Failed to create temp file for testing! Error was: %v", err)
}
defer func() {
existingFile.Close()
os.Remove(existingFile.Name())
}()
inaccessiblePath := getInaccessiblePath(existingFile.Name())
tests := []struct {
input string
shouldErr bool
expectedRoot string // expected root, set to the controller. Empty for negative cases.
expectedErrContent string // substring from the expected error. Empty for positive cases.
}{
// positive
{
fmt.Sprintf(`root %s`, nonExistingDir), false, nonExistingDir, "",
},
{
fmt.Sprintf(`root %s`, existingDirPath), false, existingDirPath, "",
},
// negative
{
`root `, true, "", parseErrContent,
},
{
fmt.Sprintf(`root %s`, inaccessiblePath), true, "", unableToAccessErrContent,
},
{
fmt.Sprintf(`root {
%s
}`, existingDirPath), true, "", parseErrContent,
},
}
for i, test := range tests {
c := caddy.NewTestController("dns", test.input)
err := setup(c)
cfg := dnsserver.GetConfig(c)
if test.shouldErr && err == nil {
t.Errorf("Test %d: Expected error but found %s for input %s", i, err, test.input)
}
if err != nil {
if !test.shouldErr {
t.Errorf("Test %d: Expected no error but found one for input %s. Error was: %v", i, test.input, err)
}
if !strings.Contains(err.Error(), test.expectedErrContent) {
t.Errorf("Test %d: Expected error to contain: %v, found error: %v, input: %s", i, test.expectedErrContent, err, test.input)
}
}
// check root only if we are in a positive test.
if !test.shouldErr && test.expectedRoot != cfg.Root {
t.Errorf("Root not correctly set for input %s. Expected: %s, actual: %s", test.input, test.expectedRoot, cfg.Root)
}
}
}
// getTempDirPath returns the path to the system temp directory. If it does not exist - an error is returned.
func getTempDirPath() (string, error) {
tempDir := os.TempDir()
_, err := os.Stat(tempDir)
if err != nil {
return "", err
}
return tempDir, nil
}
func getInaccessiblePath(file string) string {
return filepath.Join("C:", "file\x00name") // null byte in filename is not allowed on Windows AND unix
}
ave/nodemodule-preloadmodules'>dave/nodemodule-preloadmodules
| Unnamed repository; edit this file 'description' to name the repository. | |
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of only object)
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Jarred Sumner