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package hdfs
import (
"os"
"path/filepath"
"testing"
"github.com/stretchr/testify/assert"
)
func TestWalk(t *testing.T) {
c := getClient(t)
c.Mkdir("/_test/walk", os.ModePerm)
c.Mkdir("/_test/walk/dir", os.ModePerm)
c.Mkdir("/_test/walk/dir/subdir", os.ModePerm)
c.Create("/_test/walk/walkfile")
c.Create("/_test/walk/dir/walkfile1")
c.Create("/_test/walk/dir/walkfile2")
c.Create("/_test/walk/dir/subdir/walkfile1")
c.Create("/_test/walk/dir/subdir/walkfile2")
paths := make([]string, 0, 8)
err := c.Walk("/_test/walk/", walkFnTest(&paths))
assert.Nil(t, err, "unexpected error")
expected := []string{
"/_test/walk/",
"/_test/walk/dir",
"/_test/walk/dir/subdir",
"/_test/walk/dir/subdir/walkfile1",
"/_test/walk/dir/subdir/walkfile2",
"/_test/walk/dir/walkfile1",
"/_test/walk/dir/walkfile2",
"/_test/walk/walkfile"}
assert.Equal(t, expected, paths, "discrepancy between expected and walked paths.")
}
func TestWalkError(t *testing.T) {
c := getClient(t)
errors := make([]error, 0, 1)
c.Walk("/not_existing", walkErrorFn(&errors))
assert.Equal(t, 1, len(errors), "expected a single error")
}
func walkFnTest(encounteredPaths *[]string) filepath.WalkFunc {
return func(path string, info os.FileInfo, err error) error {
*encounteredPaths = append(*encounteredPaths, path)
return nil
}
}
func walkErrorFn(errors *[]error) filepath.WalkFunc {
return func(path string, info os.FileInfo, err error) error {
if err != nil {
*errors = append(*errors, err)
}
return nil
}
}
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